OLMA

Completed enrollment in the pivotal Phase 3 OPERA-01 trial; top-line data are now expected in the first quarter of 2027 Presented initial Phase 1 clinical data for OP-3136 at the 2026 ASCO Annual Meeting Announced a clinical trial collaboration and supply agreement with Bayer to evaluate darolutamide in combination with OP-3136 in metastatic castration-resistant prostate cancer Ended the second quarter with $461.1 million in cash, cash equivalents, and marketable securities SAN FRANCISCO, Aug. 10, 2026 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the second quarter ended June 30, 2026. “Our commitment to transforming the metastatic breast cancer treatment paradigm remains resolute as we continue to advance palazestrant as a potentially differentiated endocrine therapy across multiple regimens. Importantly, enrollment in our pivotal OPERA-01 Phase 3 trial is complete and we now expect to report top-line data in the first quarter of 2027,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “Beyond palazestrant, we made significant progress with OP-3136, our novel KAT6 inhibitor. The initial monotherapy Phase 1 data, presented at ASCO, demonstrated that OP-3136 was well-tolerated and showed evidence of anti-tumor activity across multiple dose levels and various tumor types. These data, taken together with our first clinical collaboration for OP-3136, established with Bayer to evaluate OP-3136 in combination with darolutamide in metastatic castration-resistant prostate cancer, reinforce our confidence in its potential as a best-in-class, differentiated option for patients with advanced solid tumors.” Bohen continued, “Supported by a strong balance sheet, we are intently focused on execution in the second half of the year as we ramp preparations for our first potential commercial launch of palazestrant as a monotherapy, work to establish palazestrant as a potential combination agent of choice in breast cancer, and continue our transformation into a fully integrated oncology company.” Recent Progress Completed enrollment in the pivotal Phase 3 OPERA-01 trial of palazestrant as a monotherapy in patients with second or third-line estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) advanced or metastatic breast cancer (MBC). Presented initial Phase 1 clinical data for OP-3136 as a monotherapy in multiple solid tumor types and a trial-in-progress poster for the pivotal Phase 3 OPERA-02 trial evaluating palazestrant in combination with ribociclib in frontline ER+/HER2- MBC at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting. Announced a clinical trial collaboration and supply agreement with Bayer to evaluate OP-3136 in combination with darolutamide, Bayer's androgen receptor inhibitor, in patients with metastatic castration-resistant prostate cancer (mCRPC). Completed enrollment in the Phase 1b/2 study of palazestrant in combination with atirmociclib in ER+/HER2- MBC. Advanced enrollment in the pivotal Phase 3 OPERA-02 trial and the Phase 1 study of OP-3136 as a monotherapy and in combination with fulvestrant and palazestrant in ER+/HER2- MBC. Anticipated Upcoming Events Initiate enrollment in the Phase 1b/2 study evaluating OP-3136 in combination with darolutamide in mCRPC in collaboration with Bayer in the fourth quarter of 2026. Report top-line data from the pivotal Phase 3 OPERA-01 trial in the first quarter of 2027. Second Quarter 2026 Financial ResultsCash, cash equivalents, and marketable securities as of June 30, 2026, were $461.1 million. Net loss for the quarter ended June 30, 2026 was $63.2 million, as compared to $43.8 million for the quarter ended June 30, 2025. The increase in net loss for the second quarter was related to higher spending on clinical development and research and corporate-related activities related to late-stage clinical trials for palazestrant and the advancement of OP-3136. GAAP research and development (R&D) expenses were $57.8 million for the quarter ended June 30, 2026, as compared to $43.9 million for the quarter ended June 30, 2025. The increase in R&D expenses was primarily related to increased spending on clinical development-related activities as we continue to advance palazestrant through late-stage clinical trials and OP-3136 in early-stage clinical studies, and increased personnel-related costs to support expanding development activities, including an increase in non-cash stock-based compensation expense of $5.2 million, mainly due to higher grant prices in 2026 and higher headcount. These increases were partially offset by the $10.0 million milestone expense related to the Aurigene agreement that was recognized in the same period in 2025. Non-GAAP R&D expenses were $48.9 million for the quarter ended June 30, 2026, excluding $8.9 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $40.2 million for the quarter ended June 30, 2025, excluding $3.7 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP G&A expenses were $9.4 million for the quarter ended June 30, 2026, as compared to $4.0 million for the quarter ended June 30, 2025. The increase in G&A expenses was primarily due to higher corporate-related costs that reflect continued investment in personnel and corporate infrastructure to support our expanding late-stage clinical development activities and anticipated future commercial operations, including an increase in non-cash stock-based compensation expense of $3.0 million, mainly due to higher grant prices in 2026, and an increase in professional fees of $1.8 million. Non-GAAP G&A expenses were $5.4 million for the quarter ended June 30, 2026, excluding $4.0 million non-cash stock-based compensation expense. Non-GAAP G&A expenses were $3.0 million for the quarter ended June 30, 2025, excluding $1.0 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema OncologyOlema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor antagonist (CERAN) and a selective estrogen receptor degrader (SERD), currently in two Phase 3 clinical trials. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical study. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250)Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor antagonist (CERAN) and selective estrogen receptor degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01, and in combination with ribociclib in the ongoing pivotal Phase 3 clinical trial, OPERA-02. Palazestrant is also being evaluated in multiple Phase 1/2 studies in combination with ribociclib, palbociclib, alpelisib, everolimus, and atirmociclib. About OP-3136OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical study. Non-GAAP Financial InformationThe results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward-Looking StatementsStatements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “on track,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to the continued advancement of Olema’s pipeline of product candidates, including palazestrant and OP-3136; the progress, timing, and results of Olema’s clinical trials, including the Phase 3 OPERA-01 and OPERA-02 trials and ongoing Phase 1/2 studies; the expected timing of data readouts, including top-line data from OPERA-01; the potential therapeutic effects and benefits of palazestrant and OP-3136, alone or in combination with each other or with other agents; the potential for palazestrant to serve as a differentiated endocrine therapy across multiple regimens and to transform the metastatic breast cancer treatment paradigm; the potential for OP-3136 to be a best-in-class, differentiated option for patients with advanced solid tumors; the expected benefits of Olema's collaboration with Bayer; Olema’s plans to become a fully integrated oncology company; and Olema’s commercial launch preparations. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations ContactCourtney O’KonekVice President, Corporate CommunicationsOlema [email protected]

Top-line data from the Phase 3 OPERA-01 trial anticipated this fall; Phase 3 OPERA-02 trial continues to enroll patients First clinical data from OP-3136 Phase 1 study to be presented at ASCO Ended the first quarter with $505.3 million in cash, cash equivalents, and marketable securities SAN FRANCISCO, May 12, 2026 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the first quarter ended March 31, 2026. “We continued to meaningfully advance our pipeline of novel therapies focused on transforming the metastatic breast cancer treatment paradigm during the first quarter, with top-line data from our Phase 3 OPERA-01 trial of palazestrant as a monotherapy expected this fall and initial Phase 1 clinical data for OP-3136 being presented at ASCO later this month,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “We continued patient enrollment in OPERA-02, our Phase 3 trial of palazestrant in combination with ribociclib in the frontline metastatic setting, while advancing our ongoing Phase 1/2 combination studies evaluating palazestrant as a potential combination endocrine therapy of choice for metastatic breast cancer. With important clinical data catalysts on the horizon this year, we believe that we are well-positioned to continue our transformation into a fully integrated oncology company with our first anticipated commercial launch next year.” Recent Progress Presented two preclinical posters at the 2026 American Association for Cancer Research (AACR) Annual Meeting in April: The first demonstrated that palazestrant fully recruits the corepressor protein, NCoR1, in vitro, supporting complete estrogen receptor antagonism. The second reinforced that palazestrant in combination with OP-3136 drives synergistic anti-tumor activity in in vivo estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) breast cancer models. Continued enrollment in the pivotal Phase 3 OPERA-02 trial evaluating palazestrant in combination with ribociclib in frontline ER+/HER2- advanced or metastatic breast cancer. Advanced enrollment in the Phase 1b/2 study evaluating palazestrant in combination with atirmociclib in ER+/HER2- metastatic breast cancer in collaboration with Pfizer. Anticipated Upcoming Events Present initial clinical data from the Phase 1 study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of OP-3136 in a poster presentation at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting. Present trial-in-progress poster for the ongoing pivotal Phase 3 OPERA-02 trial evaluating palazestrant in combination with ribociclib in frontline ER+/HER2- metastatic breast cancer at ASCO. Report top-line data from the pivotal Phase 3 OPERA-01 trial of palazestrant as a monotherapy in second- and third-line ER+/HER2- metastatic breast cancer in the fall of 2026. First Quarter 2026 Financial Results Cash, cash equivalents, and marketable securities as of March 31, 2026, were $505.3 million. Net loss for the quarter ended March 31, 2026 was $53.1 million, as compared to $30.4 million for the quarter ended March 31, 2025. The increase in net loss for the first quarter was related to higher spending on clinical development and research and corporate-related activities related to late-stage clinical trials for palazestrant and the advancement of OP-3136. GAAP research and development (R&D) expenses were $49.2 million for the quarter ended March 31, 2026, as compared to $30.6 million for the quarter ended March 31, 2025. The increase in R&D expenses was primarily related to increased spending on clinical development-related activities as we continue to advance palazestrant through late-stage clinical trials and OP-3136 in early-stage clinical studies, and increased personnel-related costs, including an increase in non-cash stock-based compensation expense of $3.3 million, mainly due to higher grant prices in 2026 and higher headcount. Non-GAAP R&D expenses were $42.7 million for the quarter ended March 31, 2026, excluding $6.6 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $27.3 million for the quarter ended March 31, 2025, excluding $3.3 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP G&A expenses were $8.8 million for the quarter ended March 31, 2026, as compared to $4.2 million for the quarter ended March 31, 2025. The increase in G&A expenses was primarily due to higher corporate-related costs, and personnel-related costs, including an increase in non-cash stock-based compensation expense of $2.5 million, mainly due to higher grant prices in 2026. Non-GAAP G&A expenses were $5.2 million for the quarter ended March 31, 2026, excluding $3.6 million non-cash stock-based compensation expense. Non-GAAP G&A expenses were $3.2 million for the quarter ended March 31, 2025, excluding $1.1 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema Oncology Olema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor antagonist (CERAN) and a selective estrogen receptor degrader (SERD), currently in two Phase 3 clinical trials. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical study. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250) Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor antagonist (CERAN) and selective estrogen receptor degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01, and in combination with ribociclib in the ongoing pivotal Phase 3 clinical trial, OPERA-02. Palazestrant is also being evaluated in multiple Phase 1/2 studies in combination with ribociclib, palbociclib, alpelisib, everolimus, and atirmociclib. About OP-3136 OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical study. Non-GAAP Financial Information The results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “on track,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to the continued advancement of Olema’s pipeline of product candidates, including palazestrant and OP-3136; the progress, timing, and results of Olema’s clinical trials, including the Phase 3 OPERA-01 and OPERA-02 trials and ongoing Phase 1/2 studies; the expected timing of data readouts, including top-line data from OPERA-01; the potential therapeutic effects and benefits of palazestrant and OP-3136, alone or in combination with each other or with other agents; Olema’s plans to become a fully integrated oncology company; and the timing and potential for a future commercial launch. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations Contact Courtney O’Konek Vice President, Corporate Communications Olema Oncology [email protected]

On-track to report top-line data in the fall of 2026 from the pivotal Phase 3 OPERA-01 trial of palazestrant as a monotherapy in patients with 2/3L ER+/HER2- metastatic breast cancer Advanced enrollment in the OPERA-02 pivotal Phase 3 trial of palazestrant in combination with ribociclib in patients with frontline ER+/HER2- metastatic breast cancer Initiated the Phase 1b/2 study of palazestrant in combination with Pfizer’s novel CDK4 inhibitor, atirmociclib, in patients with ER+/HER2- metastatic breast cancer Continued enrollment in the Phase 1 clinical study of OP-3136 in breast cancer and other solid tumors, with initial clinical data expected in Q2 2026 Generated $218.5 million in gross proceeds from a follow-on public offering, further strengthening the Company’s balance sheet; ended 2025 with $505.4 million in cash, cash equivalents, and marketable securities Transformation into a fully-integrated oncology company underway in preparation for the Company’s first potential commercial launch in late 2027 SAN FRANCISCO, March 16, 2026 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the fourth quarter and full year ended December 31, 2025. “2025 was a year of strong execution across the business as we advanced palazestrant as a differentiated endocrine therapy across multiple regimens, highlighted by continued enrollment and strong investigator interest in our OPERA-01 and OPERA-02 trials,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “Our earlier-phase combination studies with palazestrant continue to advance and we are pleased to have initiated a Phase 1b/2 study with atirmociclib in collaboration with Pfizer, further demonstrating palazestrant’s potential as the combination endocrine therapy of choice in the metastatic setting.” Bohen continued, “In November, we strengthened our balance sheet through a public offering that generated gross proceeds of approximately $218.5 million, enabling us to fund operations through numerous expected value-creating events with palazestrant. With initial clinical results from OP-3136 anticipated in Q2 2026, top-line data from OPERA-01 expected in the fall of this year, and commercial launch preparations underway for a potential approval in late 2027, we are entering an exciting chapter in Olema’s history. We remain focused on transforming the metastatic breast cancer treatment paradigm and delivering meaningful new treatment options to patients living with breast cancer and beyond.” Recent Progress Initiated the Phase 1b/2 study evaluating palazestrant in combination with atirmociclib in estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) metastatic breast cancer in collaboration with Pfizer. Presented a trial-in-progress poster for the pivotal Phase 3 OPERA-02 trial evaluating palazestrant in combination with ribociclib in frontline ER+/HER2- advanced or metastatic breast cancer at the San Antonio Breast Cancer Symposium (SABCS) 2025. Continued enrollment in the Phase 1 study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of OP-3136, as a monotherapy and in combination with fulvestrant and palazestrant, in participants with advanced solid tumors. Completed an underwritten public offering of an aggregate of 11,500,000 shares of common stock, including the full exercise of the underwriters’ option to purchase additional shares, resulting in gross proceeds of approximately $218.5 million, before deducting underwriting discounts and commissions and estimated offering expenses. Anticipated Upcoming Events Report initial clinical results for OP-3136 in Q2 2026 at a major medical conference. Report top-line data from the pivotal Phase 3 OPERA-01 trial of palazestrant as a monotherapy in second- and third-line (2/3L) ER+/HER2- metastatic breast cancer in the fall of 2026. Fourth Quarter and Full Year 2025 Financial Results Cash, cash equivalents, and marketable securities as of December 31, 2025, were $505.4 million. Net loss for the quarter and year ended December 31, 2025 was $46.1 million and $162.5 million, respectively, as compared to $33.6 million and $129.5 million for the quarter and year ended December 31, 2024, respectively. The increase in net loss for the fourth quarter was primarily related to increased spending on clinical development and research activities as a result of late-stage clinical trials for palazestrant and the advancement of OP-3136, partially offset by higher interest income earned from marketable securities. GAAP research and development (R&D) expenses were $43.2 million and $157.7 million for the quarter and year ended December 31, 2025, respectively, as compared to $32.3 million and $124.5 million for the quarter and year ended December 31, 2024. The increase in R&D expenses was primarily related to increased spending on clinical operations and development-related activities as Olema continues to advance palazestrant through late-stage clinical trials and OP-3136 in early-stage clinical studies, and personnel-related costs, partially offset by a decrease in non-cash stock-based compensation expense. Non-GAAP R&D expenses were $40.6 million and $145.5 million for the quarter and year ended December 31, 2025, respectively, excluding $2.6 million and $12.2 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $27.7 million and $108.0 million for the quarter and year ended December 31, 2024, respectively, excluding $4.6 million and $16.5 million non-cash stock-based compensation expense, respectively. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP G&A expenses were $6.9 million and $21.0 million for the quarter and year ended December 31, 2025, respectively, as compared to $4.5 million and $17.7 million for the quarter and year ended December 31, 2024. The increase in G&A expenses was primarily due to increased spending on corporate-related costs. Non-GAAP G&A expenses were $5.2 million and $15.6 million for the quarter and year ended December 31, 2025, respectively, excluding $1.7 million and $5.4 million non-cash stock-based compensation expense, respectively. Non-GAAP G&A expenses were $2.8 million and $11.7 million for the quarter and year ended December 31, 2024, excluding $1.7 million and $6.0 million non-cash stock-based compensation expense, respectively. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema Oncology Olema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor (ER) antagonist (CERAN) and a selective estrogen receptor degrader (SERD), currently in two Phase 3 clinical trials. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical study. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250) Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor antagonist (CERAN) and selective estrogen receptor degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01, and in combination with ribociclib in the ongoing pivotal Phase 3 clinical trial, OPERA-02. Palazestrant is also being evaluated in multiple Phase 1/2 studies in combination with ribociclib, palbociclib, alpelisib, everolimus, and atirmociclib. About OP-3136 OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical study. Non-GAAP Financial Information The results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “on track,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to timelines for enrollment for current clinical studies and for the receipt and presentation of results of clinical trials of palazestrant and OP-3136 each as a monotherapy and in combination trials, the timeline for potential approval and related commercial launch preparations, Olema’s financial condition and resources, results of operations, cash position, cash runway, and balance sheet strength, Olema’s potential commercial capabilities and timelines, the potential for palazestrant to become a differentiated endocrine therapy across multiple regimens, the potential for palazestrant to become a combination agent of choice in the metastatic setting, Olema’s ability to transform the breast cancer paradigm and ability to deliver meaningful new treatment options to patients living with breast cancer and beyond, Olema’s transformation into a fully-integrated oncology company, and the potential beneficial characteristics including but not limited to safety, tolerability, activity, efficacy and therapeutic effects of palazestrant or OP-3136, the combinability of palazestrant or OP-3136 with other drugs, including in the metastatic setting. Because such statements deal with future events and are based on Olema’s current expectations, they are subject to various risks and uncertainties, and actual results, performance, or achievements of Olema could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Annual Report on Form 10-K for the year ended December 31, 2025, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations Contact Courtney O’Konek Vice President, Corporate Communications Olema Oncology [email protected] (1) Research and development expenses for the year ended December 31, 2025 include a $10.0 million milestone payment in connection with the Aurigene Agreement. Research and development expenses for the year ended December 31, 2024 include a $5.0 million milestone payment in connection with the Aurigene Agreement. (1) and (2) Used to reference to the table below. (3) The weighted average shares used to compute net loss per share, basic and diluted include the effect from the pre-funded warrants.

Announced new clinical trial agreement with Pfizer to evaluate palazestrant in combination with atirmociclib in ER+/HER2- metastatic breast cancer Initiated OPERA-02 Phase 3 trial of palazestrant in combination with ribociclib in frontline ER+/HER2- metastatic breast cancer Presented compelling new data from Phase 1b/2 study of palazestrant plus ribociclib at ESMO 2025 Ended the quarter with $329.0 million in cash, cash equivalents, and marketable securities SAN FRANCISCO, Nov. 10, 2025 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the third quarter ended September 30, 2025. "We have made significant progress advancing our programs this quarter, highlighted by the initiation of the Phase 3 OPERA-02 trial evaluating palazestrant in combination with ribociclib in the frontline setting and the presentation of compelling data at ESMO that further positions palazestrant to become a potential best-in-class backbone endocrine therapy for ER+/HER2- metastatic breast cancer,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “Our clinical trial agreement with Pfizer to combine palazestrant with atirmociclib further underscores our confidence in palazestrant’s activity in combination with other agents in the metastatic setting.” Bohen continued, “Enrollment in the OPERA-01 trial evaluating palazestrant as a monotherapy in second- and third-line ER+/HER2- metastatic breast cancer continues to progress well and we remain on track for top-line data in the second half of next year. The Phase 1/2 study of our KAT6 inhibitor, OP-3136, recently expanded into combinations with fulvestrant and palazestrant and continues to benefit from strong investigator interest. As we look ahead to 2026, we remain focused on sustaining positive momentum across the business, transforming the breast cancer treatment paradigm, and bringing palazestrant to market.” Recent Progress Announced a clinical trial collaboration and supply agreement with Pfizer to evaluate the safety and combinability of palazestrant plus atirmociclib, Pfizer’s investigational, highly selective-CDK4 inhibitor, in a Phase 1b/2 study in patients with estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) metastatic breast cancer. Initiated the OPERA-02 Phase 3 trial of palazestrant in combination with ribociclib in frontline ER+/HER2- metastatic breast cancer. Presented updated data from the Phase 1b/2 study of palazestrant plus ribociclib at the European Society for Medical Oncology (ESMO) Congress 2025, demonstrating encouraging activity in both ESR1 mutant and wild-type patients. Continued enrollment in the OPERA-01 Phase 3 trial of palazestrant as a monotherapy in second- and third-line ER+/HER2- metastatic breast cancer. Advanced the Phase 1 study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of OP-3136, as a monotherapy and in combination with fulvestrant and palazestrant, in participants with advanced solid tumors. Anticipated Upcoming Events Initiate the Phase 1b/2 study evaluating palazestrant with atirmociclib in ER+/HER2- metastatic breast cancer in Q4 2025. Present trial-in-progress poster entitled “OPERA-02: a phase 3 randomized, double-blind, active-controlled study of palazestrant with ribociclib versus letrozole with ribociclib for the first-line treatment of ER+, HER2- advanced breast cancer” at the San Antonio Breast Cancer Symposium (SABCS) in December 2025. Report initial clinical results for OP-3136 in mid-2026. Report top-line data from OPERA-01 in the second half of 2026. Third Quarter 2025 Financial Results Cash, cash equivalents, and marketable securities of $329.0 million as of September 30, 2025. Net loss for the quarter ended September 30, 2025 was $42.2 million, as compared to $34.6 million for the quarter ended September 30, 2024. The increase in net loss for the third quarter was primarily related to increased spending on research and development activities as a result of the ongoing late-stage clinical trials for palazestrant and the advancement of OP-3136, partially offset by higher interest income earned from marketable securities. GAAP research and development (R&D) expenses were $40.0 million for the quarter ended September 30, 2025, as compared to $33.2 million for the quarter ended September 30, 2024. The increase in R&D expenses was primarily related to increased spending on clinical development-related activities as Olema continues to advance palazestrant through late-stage clinical trials, and the advancement of OP-3136, partially offset by decreases in stock-based compensation expense of $1.7 million. Non-GAAP R&D expenses were $37.4 million for the quarter ended September 30, 2025, excluding $2.6 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $28.9 million for the quarter ended September 30, 2024, which excluded $4.3 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP general and administrative (G&A) expenses were $5.9 million for the quarter ended September 30, 2025, as compared to $4.4 million for the quarter ended September 30, 2024. The increase in G&A expenses was primarily due to corporate-related costs, including increases in stock-based compensation expense of $0.3 million. Non-GAAP G&A expenses were $4.3 million for the quarter ended September 30, 2025, excluding $1.7 million non-cash stock-based compensation expense. Non-GAAP G&A expenses were $3.0 million for the quarter ended September 30, 2024, excluding $1.3 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema Oncology Olema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor antagonist (CERAN) and a selective estrogen receptor degrader (SERD), currently in two Phase 3 clinical trials. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical study. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250) Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor antagonist (CERAN) and selective estrogen receptor degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01, and in combination with ribociclib in the ongoing pivotal Phase 3 clinical trial, OPERA-02. Palazestrant is also being evaluated in multiple Phase 1/2 studies in combination with ribociclib, palbociclib, alpelisib, everolimus, and atirmociclib. About OP-3136 OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical study. Non-GAAP Financial Information The results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward-Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “on track,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to the potential for palazestrant to become a best-in-class, backbone endocrine therapy for metastatic breast cancer, potential beneficial characteristics including but not limited to safety, tolerability, activity, efficacy and therapeutic effects of palazestrant or OP-3136, the combinability of palazestrant or OP-3136 with other drugs, including in the metastatic setting, timelines for initiation and enrollment for potential and current clinical studies and for the receipt and presentation of results of clinical trials of palazestrant and OP-3136 each as a monotherapy and in combination trials, Olema’s ability to transform the breast cancer paradigm, Olema’s potential commercial capabilities, Olema’s leadership and ability to develop novel therapies for breast cancer and beyond, and Olema’s financial condition and resources, results of operations, cash position and balance sheet strength. Because such statements deal with future events and are based on Olema’s current expectations, they are subject to various risks and uncertainties, and actual results, performance, or achievements of Olema could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations Contact Courtney O’Konek Vice President, Corporate Communications Olema Oncology [email protected]

Selected 90 mg once-daily palazestrant for Part 2 of the OPERA-01 Phase 3 monotherapy trial and for the OPERA-02 Phase 3 trial in combination with ribociclib OPERA-01 enrollment ongoing with top-line data expected in the second half of 2026; OPERA-02 on track to initiate in Q3 2025 Mature data from the Phase 1b/2 study of palazestrant in combination with ribociclib to be presented at ESMO 2025 Ended the second quarter with $361.9 million in cash, cash equivalents, and marketable securities SAN FRANCISCO, Aug. 11, 2025 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the second quarter ended June 30, 2025. "Having achieved regulatory alignment on the selected dose for our pivotal palazestrant program during the second quarter, we are focused on accelerating enrollment in OPERA-01, which is on track for top-line data in the second half of 2026, and initiating the OPERA-02 combination trial in the frontline setting,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “Palazestrant’s demonstrated activity and combinability with multiple compounds offers the potential for it to become a best-in-class, backbone endocrine therapy for metastatic breast cancer. Our Phase 1 study of OP-3136, our potent and selective KAT6 inhibitor, is also generating strong investigator interest and patient enrollment, reinforcing our leadership in developing novel therapies for breast cancer and beyond.” Recent Progress Selected 90 mg of once-daily palazestrant for Part 2 of the ongoing registrational OPERA-01 Phase 3 trial in second- and third-line (2/3L) estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) metastatic breast cancer, and for the OPERA-02 Phase 3 trial in combination with ribociclib in frontline ER+/HER2- metastatic breast cancer. Continued enrollment in the Phase 1 study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of OP-3136, as a monotherapy and in combination with fulvestrant and palazestrant, in participants with advanced solid tumors. Anticipated Upcoming Events Present mature data from the Phase 1b/2 study of palazestrant in combination with ribociclib in ER+/HER2- metastatic breast cancer at the European Society of Medical Oncology (ESMO) Congress 2025 in a presentation entitled “Palazestrant (OP-1250) plus ribociclib in patients with estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+, HER2-) advanced breast cancer (ABC)” Initiate the OPERA-02 trial of palazestrant in combination with ribociclib in frontline metastatic breast cancer in Q3 2025. Report initial clinical results for OP-3136 in 2026. Report top-line data from OPERA-01 in the second half of 2026. Second Quarter 2025 Financial Results Cash, cash equivalents, and marketable securities of $361.9 million as of June 30, 2025. Net loss for the quarter ended June 30, 2025 was $43.8 million, as compared to $30.4 million for the quarter ended June 30, 2024. The increase in net loss for the second quarter was related to a one-time milestone payment of $10 million made to Aurigene in conjunction with our KAT6 clinical development program as well as increased spending on research and development activities as a result of the ongoing late-stage clinical trials for palazestrant and the advancement of OP-3136, partially offset by higher interest income earned from marketable securities. GAAP research and development (R&D) expenses were $43.9 million for the quarter ended June 30, 2025, as compared to $29.1 million for the quarter ended June 30, 2024. The increase in R&D expenses was primarily related to a one-time milestone payment of $10 million made to Aurigene as well as increased spending on clinical development-related activities as Olema continues to advance palazestrant through late-stage clinical trials, and the advancement of OP-3136. Non-GAAP R&D expenses were $40.2 million for the quarter ended June 30, 2025, excluding $3.7 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $24.9 million for the quarter ended June 30, 2024, which excluded $4.2 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP G&A expenses were $4.0 million for the quarter ended June 30, 2025, as compared to $4.4 million for the quarter ended June 30, 2024. The decrease in G&A expenses was primarily due to a decrease in non-cash stock-based compensation expense of $0.5 million. Non-GAAP G&A expenses were $3.0 million for the quarter ended June 30, 2025, excluding $1.0 million non-cash stock-based compensation expense. Non-GAAP G&A expenses were $2.9 million for the quarter ended June 30, 2024, excluding $1.5 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema Oncology Olema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor (ER) antagonist (CERAN) and a selective ER degrader (SERD), currently in a Phase 3 clinical trial called OPERA-01. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical study. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250) Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor (ER) antagonist (CERAN) and selective ER degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01 and is anticipated to be evaluated in combination with ribociclib in the planned pivotal Phase 3 clinical trial, OPERA-02. Learn more at www.opera01study.com. Palazestrant has also been evaluated in multiple Phase 1/2 studies in combination with ribociclib, palbociclib, alpelisib, and everolimus. About OP-3136 OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical study. Non-GAAP Financial Information The results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “on track,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to the timelines for initiation and enrollment for potential clinical studies and for the receipt and presentation of results of clinical trials of palazestrant and OP-3136 each as a monotherapy and in combination trials, the potential for palazestrant to become a best-in-class, backbone endocrine therapy for metastatic breast cancer, Olema’s leadership and ability to develop novel therapies for breast cancer and beyond, Olema’s financial condition and resources, results of operations, cash position and balance sheet strength, potential beneficial characteristics including but not limited to safety, tolerability, activity, efficacy and therapeutic effects of palazestrant or OP-3136, and the combinability of palazestrant or OP-3136 with other drugs. Because such statements deal with future events and are based on Olema’s current expectations, they are subject to various risks and uncertainties, and actual results, performance or achievements of Olema could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2025, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations Contact Courtney O’Konek Vice President, Corporate Communications Olema Oncology [email protected]

Pivotal Phase 3 OPERA-02 trial of palazestrant in combination with ribociclib in frontline metastatic breast cancer on track for initiation in 2025, supported by promising updated efficacy data from ongoing Phase 1b/2 study Pivotal Phase 3 OPERA-01 trial of palazestrant monotherapy in 2/3L metastatic breast cancer continues to advance with top-line data anticipated in 2026; trial-in-progress poster to be highlighted at ASCO Annual Meeting Preclinical data for OP-3136 presented at AACR demonstrating anti-tumor activity in ovarian, non-small cell lung, and prostate cancer models; Phase 1 trial recruitment ongoing Ended the first quarter with $392.7 million in cash, cash equivalents, and marketable securities SAN FRANCISCO, May 13, 2025 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the first quarter ended March 31, 2025. “During the first quarter, we continued to make important operational progress advancing our pipeline and we enter the second quarter well-positioned across the business,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “Our focus remains on our pivotal palazestrant program, laying the foundation to successfully initiate OPERA-02 in frontline metastatic breast cancer, while advancing OPERA-01 towards an anticipated top-line readout next year. We were also pleased to present promising new preclinical data at AACR supporting the use of OP-3136, our potent KAT6 inhibitor, in a number of solid tumor applications beyond breast cancer. Investigator interest in our OP-3136 program remains strong and we are continuing to enroll patients in the Phase 1 study. With a clear strategy and strong balance sheet to support execution against our key priorities, we are working diligently to advance the promise of Olema’s science and striving to change the treatment paradigm for endocrine-driven cancers.” Recent Progress Disclosed updated median progression-free survival (mPFS) from the ongoing Phase 1b/2 study of palazestrant in combination with cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) ribociclib in patients with estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) advanced or metastatic breast cancer at the TD Cowen 45th Annual Health Care Conference in March, including a mPFS of 13.8 months among all patients treated with 120 mg of palazestrant and 600 mg of ribociclib daily (n=56) and 13.1 months in patients previously treated with a CDK4/6i plus an endocrine therapy (n=40) as of a February 18, 2025 cutoff date. Advanced the pivotal Phase 3 OPERA-01 trial of palazestrant as a monotherapy in second- and third-line (2/3L) ER+/HER2- metastatic breast cancer. Continued enrollment in the Phase 1 study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of OP-3136 in participants with advanced solid tumors. Presented new preclinical data for OP-3136 at the American Association for Cancer Research (AACR) Annual Meeting in April, demonstrating anti-tumor activity in pre-clinical in vitro and in vivo ovarian, non-small cell lung, and prostate cancer models, regardless of KAT6A expression status, as well as synergy with standard of care drugs. Anticipated Upcoming Events Present trial-in-progress poster, “OPERA-01: A randomized, open-label, phase 3 study of palazestrant (OP-1250) monotherapy vs standard-of-care endocrine therapy for patients with ER+, HER2- advanced breast cancer after endocrine and CDK4/6 inhibitor therapy,” at the American Society of Clinical Oncology (ASCO) Annual Meeting in June; report top-line data from OPERA-01 in 2026. Initiate the pivotal Phase 3 OPERA-02 trial of palazestrant in combination with ribociclib in frontline metastatic breast cancer in 2025. Present mature data from the Phase 1b/2 trial of palazestrant in combination with ribociclib at an upcoming medical meeting. First Quarter 2025 Financial Results Cash, cash equivalents, and marketable securities as of March 31, 2025, were $392.7 million. Net loss for the quarter ended March 31, 2025 was $30.4 million, as compared to $31.0 million for the quarter ended March 31, 2024. The decrease in net loss for the first quarter was related to higher interest income earned from marketable securities, primarily offset by increased spending on clinical development and research activities as a result of late-stage clinical trials for palazestrant and the advancement of OP-3136. GAAP research and development (R&D) expenses were $30.6 million for the quarter ended March 31, 2025, as compared to $29.9 million for the quarter ended March 31, 2024. The increase in R&D expenses was primarily related to increased spending on clinical operations and development-related activities as the Company continues to advance palazestrant through late-stage clinical trials, and clinical operations and development-related activities associated with the advancement of OP-3136, and personnel-related costs, partially offset by a one-time $5 million milestone payment incurred to Aurigene and a decrease in non-cash stock-based compensation expense of $0.1 million. Non-GAAP R&D expenses were $27.3 million for the quarter ended March 31, 2025, excluding $3.3 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $26.5 million for the quarter ended March 31, 2024, which included a $5.0 million milestone payment in connection with the Aurigene Agreement and excluded $3.4 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP G&A expenses were $4.2 million for the quarter ended March 31, 2025, as compared to $4.5 million for the quarter ended March 31, 2024. The decrease in G&A expenses was primarily due to a decrease in non-cash stock-based compensation expense of $0.4 million, offset by increased spending on corporate-related costs. Non-GAAP G&A expenses were $3.2 million for the quarter ended March 31, 2025, excluding $1.1 million non-cash stock-based compensation expense. Non-GAAP G&A expenses were $3.0 million for the quarter ended March 31, 2024, excluding $1.5 million non-cash stock-based compensation expense. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema Oncology Olema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor (ER) antagonist (CERAN) and a selective ER degrader (SERD), currently in a Phase 3 clinical trial called OPERA-01. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical trial. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250) Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor (ER) antagonist (CERAN) and selective ER degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01. Learn more at www.opera01study.com. Palazestrant is also being evaluated in multiple Phase 1/2 trials in combination with ribociclib, palbociclib, alpelisib, and everolimus. It will also be evaluated in combination with ribociclib in the planned pivotal Phase 3 trial, OPERA-02. About OP-3136 OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical trial. Non-GAAP Financial Information The results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to the timelines for initiation and enrollment for potential clinical studies and for results of clinical trials of palazestrant and OP-3136 each as a monotherapy and in combination trials, Olema’s financial condition and resources, results of operations, cash position and balance sheet strength, potential beneficial characteristics including but not limited to safety, tolerability, activity, efficacy and therapeutic effects of palazestrant or OP-3136, the combinability of palazestrant or OP-3136 with other drugs, the applicability of OP-3136 in solid tumor applications beyond breast cancer, patient enrollment in our clinical trials, and Olema’s potential to change the treatment paradigm of endocrine-driven cancers. Because such statements deal with future events and are based on Olema’s current expectations, they are subject to various risks and uncertainties, and actual results, performance or achievements of Olema could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations Contact Courtney O’Konek Vice President, Corporate Communications Olema Oncology [email protected]

Pivotal Phase 3 OPERA-01 trial of palazestrant as a monotherapy in patients with 2/3L metastatic breast cancer on track for top-line data in 2026 Pivotal Phase 3 OPERA-02 trial of palazestrant in combination with ribociclib in patients with frontline metastatic breast cancer enabled by new Novartis collaboration and $250 million equity private placement; trial on track for initiation this year Promising updated results from the ongoing Phase 1b/2 study of palazestrant in combination with ribociclib in patients with ER+/HER2- advanced or metastatic breast cancer presented at SABCS in December 2024; updated mPFS presented at the TD Cowen Health Care Conference in March 2025; mature data expected to be presented this year at a major medical meeting OP-3136 Phase 1 trial initiated before the end of 2024; patients now enrolling Ended 2024 with $434.1 million in cash, cash equivalents, and marketable securities SAN FRANCISCO, March 18, 2025 (GLOBE NEWSWIRE) -- Olema Pharmaceuticals, Inc. (“Olema” or “Olema Oncology”, Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, today reported financial and operating results for the fourth quarter and full year ended December 31, 2024. “2024 was a productive year for Olema and we closed the year with significant positive momentum. We announced a new clinical trial collaboration and supply agreement with Novartis, raised approximately $250 million through an equity private placement with high-quality, long-term investors, presented compelling data supporting palazestrant in combination with ribociclib at SABCS, received clearance from the FDA for our IND application for OP-3136, and moved quickly to begin enrolling patients in the OP-3136 Phase 1 study before the end of the year,” said Sean P. Bohen, M.D., Ph.D., President and Chief Executive Officer of Olema Oncology. “Bolstered by a strong balance sheet, we are focused on exemplary execution throughout 2025. We plan to advance patient enrollment in the pivotal Phase 3 OPERA-01 trial in second- and third-line ER+/HER2- metastatic breast cancer, initiate our second pivotal Phase 3 trial, called OPERA-02, in frontline metastatic breast cancer, continue enrolling patients in the Phase 1 trial of OP-3136, present mature data from the Phase 1b/2 trial of palazestrant in combination with ribociclib, and further expand our capabilities through drug discovery and partnerships – all to help patients living with cancer feel better, longer.” Recent Progress Presented new preclinical data demonstrating anti-tumor activity for palazestrant in combination with capivasertib and everolimus as well as new preclinical data for OP-3136 as a single agent and in combination with palazestrant and other targeted agents at the EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics in October. Announced a new clinical trial collaboration and supply agreement with Novartis in frontline metastatic breast cancer. Successfully completed a $250 million equity private placement with new and existing institutional and accredited investors. Announced intention to proceed with OPERA-02, the Company’s second pivotal Phase 3 trial, of palazestrant in combination with cyclin-dependent kinase 4/6 (CDK4/6) inhibitor ribociclib in frontline metastatic breast cancer. Presented updated clinical results from the ongoing Phase 1b/2 study of palazestrant in combination with ribociclib in patients with estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) advanced or metastatic breast cancer at the San Antonio Breast Cancer Symposium (SABCS) in December. Presented updated median progression-free survival (mPFS) from this trial at the TD Cowen 45th Annual Health Care Conference in March 2025. Received clearance from the U.S. Food and Drug Administration (FDA) for the Investigational New Drug (IND) application for OP-3136. Initiated the Phase 1 clinical trial for OP-3136 and began enrolling patients before year-end. Anticipated Upcoming Events Advance patient accrual in the pivotal Phase 3 OPERA-01 clinical trial of palazestrant as a monotherapy in second- and third-line (2/3L) metastatic breast cancer; top-line data are anticipated in 2026. Initiate the pivotal Phase 3 OPERA-02 clinical trial of palazestrant in combination with ribociclib in frontline metastatic breast cancer. Present new preclinical data for OP-3136. Present mature data from the Phase 1b/2 clinical trial of palazestrant in combination with ribociclib at a medical meeting. Fourth Quarter and Full Year 2024 Financial Results Cash, cash equivalents, and marketable securities as of December 31, 2024, were $434.1 million. Net loss for the quarter and year ended December 31, 2024 was $33.6 million and $129.5 million, respectively, as compared to $26.8 million and $96.7 million for the quarter and year ended December 31, 2023, respectively. The increase in net loss for the fourth quarter was primarily related to increased spending on clinical development and research activities as a result of late-stage clinical trials for palazestrant, the advancement of OP-3136, and lower interest income earned from marketable securities. GAAP research and development (R&D) expenses were $32.3 million and $124.5 million for the quarter and year ended December 31, 2024, respectively, as compared to $25.9 million and $86.1 million for the quarterand year ended December 31, 2023. The increase in R&D expenses was primarily related to increased spending on clinical operations and development-related activities as the Company continues to advance palazestrant through late-stage clinical trials, research-related activities associated with the advancement of OP-3136, and personnel related costs, including an increase in non-cash stock-based compensation expense. Non-GAAP R&D expenses were $27.7 million and $108.0 million for the quarter and year ended December 31, 2024, respectively, excluding $4.6 million and $16.5 million non-cash stock-based compensation expense. Non-GAAP R&D expenses were $23.0 million and $74.4 million for the quarter and year ended December 31, 2023, respectively, excluding $2.9 million and $11.8 million non-cash stock-based compensation expense, respectively. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. GAAP G&A expenses were $4.5 million and $17.7 million for the quarter and year ended December 31, 2024, respectively, as compared to $4.5 million and $18.8 million for the quarter and year ended December 31, 2023. The decrease in G&A expenses was primarily due to decreased spending on corporate-related costs, offset by an increase in non-cash stock-based compensation expense. Non-GAAP G&A expenses were $2.8 million and $11.7 million for the quarter and year ended December 31, 2024, respectively, excluding $1.7 million and $6.0 million non-cash stock-based compensation expense, respectively. Non-GAAP G&A expenses were $3.1 million and $13.3 million for the quarter and year ended December 31, 2023, excluding $1.4 million and $5.5 million non-cash stock-based compensation expense, respectively. A reconciliation of GAAP to non-GAAP financial measures used in this press release can be found at the end of this press release. About Olema Oncology Olema Oncology is a clinical-stage biopharmaceutical company committed to transforming the standard of care and improving outcomes for patients living with breast cancer and beyond. Olema is advancing a pipeline of novel therapies by leveraging our deep understanding of endocrine-driven cancers, nuclear receptors, and mechanisms of acquired resistance. Our lead product candidate, palazestrant (OP-1250), is a proprietary, orally available complete estrogen receptor (ER) antagonist (CERAN) and a selective ER degrader (SERD), currently in a Phase 3 clinical trial called OPERA-01. In addition, Olema is developing OP-3136, a potent lysine acetyltransferase 6 (KAT6) inhibitor, now in a Phase 1 clinical trial. Olema is headquartered in San Francisco and has operations in Cambridge, Massachusetts. For more information, please visit www.olema.com. About Palazestrant (OP-1250) Palazestrant (OP-1250) is a novel, orally available small molecule with dual activity as both a complete estrogen receptor (ER) antagonist (CERAN) and selective ER degrader (SERD). It is currently being investigated in patients with recurrent, locally advanced or metastatic ER-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. In clinical studies, palazestrant completely blocks ER-driven transcriptional activity in both wild-type and mutant forms of metastatic ER+ breast cancer and has demonstrated anti-tumor efficacy along with attractive pharmacokinetics and exposure, favorable tolerability, central nervous system penetration, and combinability with cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. Palazestrant has been granted U.S. Food and Drug Administration (FDA) Fast Track designation for the treatment of ER+/HER2- metastatic breast cancer that has progressed following one or more lines of endocrine therapy with at least one line given in combination with a CDK4/6 inhibitor. It is being evaluated as a single agent in the ongoing pivotal Phase 3 clinical trial, OPERA-01. Learn more at www.opera01study.com. Palazestrant is also being evaluated in multiple Phase 1/2 trials in combination with ribociclib, palbociclib, alpelisib, and everolimus. It will also be evaluated in combination with ribociclib in the planned pivotal Phase 3 trial, OPERA-02. About OP-3136 OP-3136 is a novel, orally available small molecule that potently and selectively inhibits lysine acetyltransferase 6 (KAT6), an epigenetic target that is dysregulated in breast and other cancers. In preclinical studies, OP-3136 has demonstrated significant anti-proliferative activity in ER+ breast cancer models and is combinable and synergistic with endocrine therapies including palazestrant and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors. The Investigational New Drug (IND) application for OP-3136 was cleared by the U.S. Food and Drug Administration (FDA) in December 2024 and patients are currently enrolling in the Phase 1 clinical trial. Non-GAAP Financial Information The results presented in this press release include both GAAP information and non-GAAP information. As used in this release, non-GAAP R&D expense is defined by Olema as GAAP R&D expense excluding stock-based compensation expense, and non-GAAP G&A expense is defined by Olema as GAAP G&A expense excluding stock-based compensation expense. We use these non-GAAP financial measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors because it provides consistency and comparability with past financial performance. However, non-GAAP financial information is presented for supplemental informational purposes only, has limitations as an analytical tool, and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Other companies, including companies in our industry, may calculate similarly titled non-GAAP measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measures and not rely on any single financial measure to evaluate our business. Forward Looking Statements Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Words such as “anticipate,” “believe,” “could,” “expect,” “goal,” “intend,” “may,” “potential,” “upcoming,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to the timelines for initiation and enrollment for potential clinical studies and for results of clinical trials of palazestrant and OP-3136 as a monotherapy and in combination trials, Olema’s financial condition and resources, results of operations, cash position and balance sheet strength, potential beneficial characteristics including but not limited to safety, tolerability, activity, efficacy and therapeutic effects of palazestrant, the combinability of palazestrant or OP-3136 with other drugs, and patient enrollment in our clinical trials. Because such statements deal with future events and are based on Olema’s current expectations, they are subject to various risks and uncertainties, and actual results, performance or achievements of Olema could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, those discussed in the section titled “Risk Factors” in Olema’s Annual Report on Form 10-K for the year ended December 31, 2024, and future filings and reports that Olema makes from time to time with the U.S. Securities and Exchange Commission. Except as required by law, Olema assumes no obligation to update these forward-looking statements, including in the event that actual results differ materially from those anticipated in the forward-looking statements. Media and Investor Relations Contact Courtney O’Konek Vice President, Corporate Communications Olema Oncology [email protected]