Developing Breakthrough Biologics, Life-changing Medicines® Corporate Update June 10, 2025 Legal Notices The information in this slide deck is current as of June 10, 2025, unless otherwise noted, and is qualified in its entirety by reference to MacroGenics' Annual, Quarterly and Current Reports filed with the SEC. MacroGenics undertakes no obligation to update any of the information herein. Cautionary Note on Forward-Looking Statements Any statements in this presentation about future expectations, plans and ...

Core Viewpoint - MacroGenics, Inc. is advancing its clinical pipeline, particularly with the initiation of the Phase 2 LINNET study for lorigerlimab, targeting unmet needs in ovarian and gynecologic cancers, while also reporting financial results for Q1 2025 [1][2]. Clinical Development Updates - The first patient has been dosed in the LINNET Phase 2 study of lorigerlimab for platinum-resistant ovarian cancer and clear cell gynecologic cancer, with a focus on addressing significant unmet needs [2][7]. - The LORIKEET Phase 2 trial, involving 150 patients, is ongoing to evaluate lorigerlimab in combination with docetaxel for metastatic castration-resistant prostate cancer (mCRPC), with results expected in the second half of 2025 [6][7]. - MacroGenics is developing three antibody-drug conjugates (ADCs) in collaboration with Synaffix, including MGC026, MGC028, and MGC030, targeting various solid tumors [4][6]. Financial Performance - Total revenue for Q1 2025 was $13.2 million, an increase from $9.1 million in Q1 2024, primarily due to collaborative agreements and contract manufacturing [8][13]. - Research and development expenses decreased to $39.7 million in Q1 2025 from $46.0 million in Q1 2024, while selling, general and administrative expenses also fell to $10.7 million from $14.7 million [8][13]. - The net loss for Q1 2025 was $41.0 million, compared to a net loss of $52.2 million in Q1 2024, indicating improved financial performance [8][13]. Cash Position and Guidance - As of March 31, 2025, MacroGenics had cash, cash equivalents, and marketable securities totaling $154.1 million, down from $201.7 million at the end of 2024, which supports operations into the second half of 2026 [8][11]. - The company plans to implement cost-saving measures to extend its financial runway while continuing to progress its clinical pipeline [8][11].