Insiders · ABOS

ABOS insider transactions

Acumen Pharmaceuticals Inc. (ABOS) Form 4 insider transactions - real-time wire coverage of every officer, director, and 10% owner trade.

ABOS insiders

Everyone who has filed a Form 3, 4, 5 or 144 at Acumen Pharmaceuticals Inc., latest first. Follow anyone to get their next filing.

• Derrell PorterDirector, since January 2023-$75.2K
• Nathan B FountainDirector-$14.3K
• Ra Capital Management, L.P.Director, 10% owner
• Kimberlee C DrapkinDirector, since April 2022
• John A Stalfort IIIDirector
• Jeffrey L. IvesDirector-$272K
• George GolumbeskiDirector, since November 2025
• Laura StoppelDirector
• Derek M MeisnerChief Legal Officer & Corp Sec, since September 2022-$299K
• Eric SiemersChief Medical Officer-$63.9K
• Russell BartonChief Operating Officer-$59.4K
• Daniel Joseph OConnellChief Executive Officer, Director-$324K
• Matt ZugaCFO & Chief Business Officer-$146K
• Amy SchacterleChief Regulatory Officer, since November 2024-$2,176
• James J. DohertyPresident and CDO, since February 2024-$15.1K
• Jeffrey SevignyDirector

Recent Form 3, 4, and 5 filings for ABOS

• 147d
  Director Porter Derrell exercised 19,500 shares at a strike of $1.07 and sold $75,240 worth of shares (32,300 units at $2.33), decreasing direct ownership by 27% to 35,500 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 154d
  Director Fountain Nathan B sold $14,273 worth of shares (6,400 units at $2.23), decreasing direct ownership by 12% to 48,150 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Ra Capital Management, L.P. was granted 35,500 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Fountain Nathan B was granted 35,500 shares, increasing direct ownership by 186% to 54,550 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Drapkin Kimberlee C was granted 35,500 shares, increasing direct ownership by 277% to 48,300 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Stalfort John A Iii was granted 35,500 shares, increasing direct ownership by 19% to 220,624 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Porter Derrell was granted 35,500 shares, increasing direct ownership by 277% to 48,300 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Ives Jeffrey L. was granted 35,500 shares, increasing direct ownership by 277% to 48,300 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Golumbeski George was granted 35,500 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 159d
  Director Stoppel Laura was granted 35,500 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 238d
  SEC Form 4 filed by Ra Capital Management, L.P.

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 246d
  SEC Form 4 filed by Acumen Pharmaceuticals Inc.

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 253d
  Chief Legal Officer & Corp Sec Meisner Derek M exercised 9,406 shares at a strike of $1.85 and sold $28,311 worth of shares (9,406 units at $3.01) (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 287d
  Chief Legal Officer & Corp Sec Meisner Derek M exercised 17,756 shares at a strike of $1.85 and sold $53,280 worth of shares (17,756 units at $3.00) (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 292d
  Chief Legal Officer & Corp Sec Meisner Derek M sold $16,721 worth of shares (8,934 units at $1.87), decreasing direct ownership by 5% to 173,999 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 292d
  Chief Medical Officer Siemers Eric sold $5,833 worth of shares (3,226 units at $1.81), decreasing direct ownership by 1% to 255,371 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 292d
  CFO & Chief Business Officer Zuga Matt sold $7,607 worth of shares (4,160 units at $1.83), decreasing direct ownership by 1% to 304,924 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 292d
  Chief Executive Officer Oconnell Daniel Joseph sold $21,993 worth of shares (12,035 units at $1.83), decreasing direct ownership by 1% to 881,275 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 292d
  Chief Operating Officer Barton Russell sold $5,031 worth of shares (2,777 units at $1.81), decreasing direct ownership by 1% to 205,092 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  Chief Executive Officer Oconnell Daniel Joseph was granted 299,800 shares, increasing direct ownership by 51% to 893,310 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  CFO & Chief Business Officer Zuga Matt was granted 99,133 shares, increasing direct ownership by 47% to 309,084 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  Chief Medical Officer Siemers Eric was granted 99,133 shares, increasing direct ownership by 62% to 258,597 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  Chief Legal Officer & Corp Sec Meisner Derek M was granted 99,133 shares, increasing direct ownership by 118% to 182,933 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  President and CDO Doherty James J. was granted 166,867 shares, increasing direct ownership by 309% to 220,900 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  Chief Regulatory Officer Schacterle Amy was granted 84,600 shares, increasing direct ownership by 1,098% to 92,303 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 294d
  Chief Operating Officer Barton Russell was granted 84,600 shares, increasing direct ownership by 69% to 207,869 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 303d
  CFO & Chief Business Officer Zuga Matt sold $12,513 worth of shares (6,888 units at $1.82), decreasing direct ownership by 3% to 209,951 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 303d
  Chief Operating Officer Barton Russell sold $6,562 worth of shares (3,530 units at $1.86), decreasing direct ownership by 3% to 123,269 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 303d
  Chief Legal Officer & Corp Sec Meisner Derek M sold $91,073 worth of shares (50,659 units at $1.80), decreasing direct ownership by 38% to 83,800 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 303d
  Chief Executive Officer Oconnell Daniel Joseph sold $46,954 worth of shares (26,472 units at $1.77), decreasing direct ownership by 4% to 593,510 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 306d
  President and CDO Doherty James J. sold $15,148 worth of shares (8,167 units at $1.85), decreasing direct ownership by 13% to 54,033 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 306d
  Chief Regulatory Officer Schacterle Amy sold $2,176 worth of shares (1,097 units at $1.98), decreasing direct ownership by 12% to 7,703 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 308d
  CFO & Chief Business Officer Zuga Matt sold $29,436 worth of shares (14,905 units at $1.97), decreasing direct ownership by 6% to 216,839 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 308d
  Chief Medical Officer Siemers Eric sold $21,277 worth of shares (10,834 units at $1.96), decreasing direct ownership by 6% to 159,464 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 308d
  Chief Executive Officer Oconnell Daniel Joseph sold $94,176 worth of shares (47,506 units at $1.98), decreasing direct ownership by 7% to 619,982 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 308d
  Chief Legal Officer & Corp Sec Meisner Derek M sold $52,690 worth of shares (26,668 units at $1.98), decreasing direct ownership by 17% to 134,459 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 308d
  Chief Operating Officer Barton Russell sold $18,325 worth of shares (9,318 units at $1.97), decreasing direct ownership by 7% to 126,799 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 366d
  SEC Form 4 filed by Director Golumbeski George

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 366d
  SEC Form 3 filed by new insider Golumbeski George

  3 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Ra Capital Management, L.P. was granted 12,800 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Stoppel Laura was granted 12,800 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Stalfort John A Iii was granted 12,800 shares, increasing direct ownership by 7% to 185,124 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Fountain Nathan B was granted 12,800 shares, increasing direct ownership by 205% to 19,050 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Drapkin Kimberlee C was granted 12,800 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Ives Jeffrey L. was granted 12,800 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 524d
  Director Porter Derrell was granted 12,800 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 657d
  CFO & Chief Business Officer Zuga Matt sold $56,620 worth of shares (33,266 units at $1.70), decreasing direct ownership by 13% to 231,744 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 657d
  Chief Executive Officer Oconnell Daniel Joseph sold $20,102 worth of shares (12,619 units at $1.59), decreasing direct ownership by 2% to 667,488 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 657d
  Chief Legal Officer & Corp Sec Meisner Derek M sold $5,435 worth of shares (3,418 units at $1.59), decreasing direct ownership by 2% to 161,127 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 657d
  Chief Operating Officer Barton Russell sold $4,692 worth of shares (2,914 units at $1.61), decreasing direct ownership by 2% to 136,117 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 657d
  Chief Medical Officer Siemers Eric sold $5,118 worth of shares (3,219 units at $1.59), decreasing direct ownership by 2% to 170,298 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  Chief Executive Officer Oconnell Daniel Joseph sold $87,873 worth of shares (47,778 units at $1.84) and was granted 225,400 shares, increasing direct ownership by 35% to 680,107 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  Chief Regulatory Officer Schacterle Amy was granted 8,800 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  President and CDO Doherty James J. was granted 62,600 shares (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  Chief Legal Officer & Corp Sec Meisner Derek M sold $20,506 worth of shares (11,122 units at $1.84) and was granted 66,800 shares, increasing direct ownership by 51% to 164,545 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  Chief Operating Officer Barton Russell sold $14,225 worth of shares (7,636 units at $1.86) and was granted 49,800 shares, increasing direct ownership by 44% to 139,031 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  CFO & Chief Business Officer Zuga Matt sold $24,367 worth of shares (13,235 units at $1.84) and was granted 66,800 shares, increasing direct ownership by 25% to 265,010 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 673d
  Chief Medical Officer Siemers Eric sold $20,047 worth of shares (10,859 units at $1.85) and was granted 66,800 shares, increasing direct ownership by 48% to 173,517 units (SEC Form 4)

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 735d
  SEC Form 4 filed by Chief Regulatory Officer Schacterle Amy

  4 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)
• 735d
  SEC Form 3 filed by new insider Schacterle Amy

  3 - Acumen Pharmaceuticals, Inc. (0001576885) (Issuer)