Siemers Eric Insider Trading Activity

Corporate InsiderChief Medical Officer · CIK 1866239

4

Total trades

$27K

Total volume

Jan 22, 2026

Last activity

ABOS

Acumen Pharmaceuticals, Inc.

Siemers Eric has been net-selling over the last 12 months with 0 purchases and 4 sales across 1 company.

ABOS is the most-traded position with 4 trades. The largest single transaction was a sale of ABOS for $13K on Jan 6, 2026.

Performance Scorecard

Forward stock performance after each transaction by Siemers Eric. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days-30.9%0%4
90 days-46.7%0%4
120 days-33.8%0%4

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

Pro: Trade Markers

ABOS · Acumen Pharmaceuticals, Inc.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEROLE
Jan 22, 2026ABOSSell895$1.82$2KChief Medical Officer
Jan 21, 2026ABOSSell2,331$1.80$4KChief Medical Officer
Jan 6, 2026ABOSSell6,834$1.97$13KChief Medical Officer
Jan 5, 2026ABOSSell4,000$1.96$8KChief Medical Officer

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
ABOSAcumen Pharmaceuticals, Inc.4$27K

Other insiders at Acumen Pharmaceuticals, Inc.

4 other tracked filers at ABOS.