Derek M. Meisner

Companies

• Acumen Pharmaceuticals, Inc.General counsel Sep 7, 2022 to now¹
• X4 Pharmaceuticals, IncGeneral counsel Nov 6, 2019 to Aug 19, 2022²
• Genocea (United States)General counsel Sep 20, 2018 to Feb 11, 2019³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• XPX4 Pharmaceuticals, Inc XFOR145,155 shares⁴$372.3K at $2.56Aug 17, 2022
• APAcumen Pharmaceuticals, Inc. ABOS173,999 shares⁵$294.1K at $1.69Mar 6, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 6, 2026Sold 2,090 shares at $3.26 of Acumen Pharmaceuticals, Inc.⁵
• Mar 6, 2026Exercised options 2,090 shares at $1.85 of Acumen Pharmaceuticals, Inc.⁵
• Feb 27, 2026Sold 9,406 shares at $3.01 of Acumen Pharmaceuticals, Inc.⁶
• Feb 27, 2026Exercised options 9,406 shares at $1.85 of Acumen Pharmaceuticals, Inc.⁶
• Jan 28, 2026Sold 2,671 shares at $3.00 of Acumen Pharmaceuticals, Inc.⁷
• Jan 28, 2026Exercised options 2,671 shares at $1.85 of Acumen Pharmaceuticals, Inc.⁷
• Jan 26, 2026Sold 15,085 shares at $3.00 of Acumen Pharmaceuticals, Inc.⁷
• Jan 26, 2026Exercised options 15,085 shares at $1.85 of Acumen Pharmaceuticals, Inc.⁷
• Jan 23, 2026Sold 5,633 shares at $1.90 of Acumen Pharmaceuticals, Inc.⁸
• Jan 22, 2026Sold 1,054 shares at $1.84 of Acumen Pharmaceuticals, Inc.⁸
• Jan 21, 2026Sold 2,247 shares at $1.81 of Acumen Pharmaceuticals, Inc.⁸
• Jan 16, 2026Granted 99,133 shares of Acumen Pharmaceuticals, Inc.⁹
• Jan 12, 2026Sold 8,548 shares at $1.71 of Acumen Pharmaceuticals, Inc.¹⁰
• Jan 9, 2026Sold 5,200 shares at $1.76 of Acumen Pharmaceuticals, Inc.¹⁰
• Jan 8, 2026Sold 30,092 shares at $1.82 of Acumen Pharmaceuticals, Inc.¹⁰
• Jan 8, 2026Sold 6,819 shares at $1.82 of Acumen Pharmaceuticals, Inc.¹⁰
• Jan 7, 2026Sold 10,070 shares at $1.99 of Acumen Pharmaceuticals, Inc.¹¹
• Jan 7, 2026Sold 1,700 shares at $1.99 of Acumen Pharmaceuticals, Inc.¹¹
• Jan 6, 2026Sold 3,801 shares at $1.97 of Acumen Pharmaceuticals, Inc.¹¹
• Jan 6, 2026Sold 7,097 shares at $1.97 of Acumen Pharmaceuticals, Inc.¹¹
• Jan 5, 2026Sold 4,000 shares at $1.96 of Acumen Pharmaceuticals, Inc.¹¹
• Jan 21, 2025Sold 3,418 shares at $1.59 of Acumen Pharmaceuticals, Inc.¹²
• Jan 6, 2025Granted 66,800 shares of Acumen Pharmaceuticals, Inc.¹³
• Jan 3, 2025Sold 11,122 shares at $1.84 of Acumen Pharmaceuticals, Inc.¹³
• Jan 19, 2024Sold 8,933 shares at $3.48 of Acumen Pharmaceuticals, Inc.¹⁴