OLMA

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Exhibit 99.1

Olema Oncology Reports Second Quarter 2026 Financial and Operating Results

• 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, August 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 Results

Cash, 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

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Exhibit 99.1

Olema Oncology Reports First Quarter 2026 Financial and Operating Results

• 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:

o The first demonstrated that palazestrant fully recruits the corepressor protein, NCoR1, in vitro, supporting complete estrogen receptor antagonism.

o 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 increa

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Exhibit 99.1

Olema Oncology Reports Fourth Quarter and Full Year 2025 Financial and Operating Results

• 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 Q22026, 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 fr