Eric Siemers

Companies

• Acumen Pharmaceuticals, Inc.Chief Medical Officer Jun 30, 2021 to now¹

Holdings

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

Shares held

• APAcumen Pharmaceuticals, Inc. ABOS255,371 shares²$446.9K at $1.75Jan 22, 2026

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

Recent filings

• Jan 22, 2026Sold 895 shares at $1.82 of Acumen Pharmaceuticals, Inc.²
• Jan 21, 2026Sold 2,331 shares at $1.80 of Acumen Pharmaceuticals, Inc.²
• Jan 16, 2026Granted 99,133 shares of Acumen Pharmaceuticals, Inc.³
• Jan 6, 2026Sold 6,834 shares at $1.97 of Acumen Pharmaceuticals, Inc.⁴
• Jan 5, 2026Sold 4,000 shares at $1.96 of Acumen Pharmaceuticals, Inc.⁴
• Jan 21, 2025Sold 3,219 shares at $1.59 of Acumen Pharmaceuticals, Inc.⁵
• Jan 6, 2025Granted 66,800 shares of Acumen Pharmaceuticals, Inc.⁶
• Jan 3, 2025Sold 10,859 shares at $1.85 of Acumen Pharmaceuticals, Inc.⁶
• Jan 18, 2024Sold 3,124 shares at $3.71 of Acumen Pharmaceuticals, Inc.⁷
• Jan 2, 2024Granted 94,000 shares of Acumen Pharmaceuticals, Inc.⁸
• Jan 17, 2023Granted 26,700 shares of Acumen Pharmaceuticals, Inc.⁹