Trade Summary

1 month ago, Tananbaum James B., serving as Dir, 10% owner at Alumis Inc. (ALMS), purchased 507,874 shares at $6.09 per share, for a total transaction value of $3,094,725.00. Following this transaction, Tananbaum James B. now holds 15,705,828 shares of ALMS.

This purchase represents a 3.00% increase in Tananbaum James B.'s stake in the company. This is considered a medium-conviction trade.

The trade was executed on Monday, November 17, 2025 and publicly disclosed via SEC Form 4 filing on Wednesday, November 19, 2025, 2 days after the trade was made.

Alumis Inc. operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.