Tananbaum James B. Insider Trading Activity

Corporate InsiderDirector · CIK 1581754

7

Total trades

$10.6M

Total volume

Jan 8, 2026

Last activity

ALMS

ALUMIS INC.

Tananbaum James B. has been net-buying over the last 12 months with 7 purchases and 0 sales across 1 company.

ALMS is the most-traded position with 7 trades. The largest single transaction was a purchase of ALMS for $5.0M on Jan 8, 2026.

Performance Scorecard

Forward stock performance after each transaction by Tananbaum James B.. 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+69.7%100%7
90 days+249.7%100%7
120 days+232.8%100%7

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

Price & Trades

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ALMS · ALUMIS INC.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEROLE
Jan 8, 2026ALMSBuy117,647$17.00$2.0MDirector
Jan 8, 2026ALMSBuy294,117$17.00$5.0MDirector
Nov 21, 2025ALMSBuy72,212$7.38$533KDirector
Nov 19, 2025ALMSBuy190,500$6.56$1.2MDirector
Nov 18, 2025ALMSBuy117,374$6.19$727KDirector
Nov 17, 2025ALMSBuy50,000$5.60$280KDirector
Nov 17, 2025ALMSBuy150,000$5.59$839KDirector

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
ALMSALUMIS INC.7$10.6M

Other insiders at ALUMIS INC.

3 other tracked filers at ALMS.