Form 4: Alumis Director Akkaraju Boosts Stake with $10M Share Purchase

Alumis Inc. Director Srinivas Akkaraju, through Samsara Opportunity Fund, L.P., acquired 588,235 shares of common stock for $17 per share, totaling approximately $10 million.

Summary

• Srinivas Akkaraju, a Director and 10% Owner of Alumis Inc. (ALMS), reported the acquisition of common stock.
• On January 9, 2026, Akkaraju acquired 588,235 shares of Alumis Inc. Common Stock at a price of $17 per share.
• The total value of this transaction was $9,999,995.
• This transaction was made pursuant to a Rule 10b5-1(c) pre-arranged trading plan.
• Following this transaction, Akkaraju's indirect beneficial ownership through Samsara Opportunity Fund, L.P. increased to 2,441,723 shares.
• Akkaraju also indirectly beneficially owns 4,491,731 shares through Samsara BioCapital, L.P., bringing the total indirect beneficial ownership to 6,933,454 shares.
• Akkaraju disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

Sentiment

Score: 7

Explanation: A significant insider purchase by a director and 10% owner indicates confidence in the company's future, although executed under a pre-arranged 10b5-1 plan, which slightly moderates the immediate opportunistic signal.

Positives

• A significant insider purchase by a director and 10% owner signals strong confidence in the company's future prospects.
• The acquisition of 588,235 shares represents a substantial investment of nearly $10 million by a key insider.

Future Outlook

This filing does not contain forward-looking statements or guidance regarding the company's future performance.

Management Comments

• The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein.

Industry Context

Insider buying, especially by a director and significant owner, is generally viewed as a positive signal within the biotechnology and pharmaceutical industry, suggesting management's belief in the company's future prospects and valuation.

Related Party Transactions

• The acquisition of common stock by Srinivas Akkaraju, a Director and 10% Owner, constitutes a related party transaction.

Stakeholder Impact

• Shareholders may view this significant insider purchase as a positive indicator of management's belief in the company's value and future performance, potentially boosting investor confidence.

Key Dates

Recommendation

While the director's substantial share purchase signals confidence, particularly given their 10% ownership, the transaction was executed under a pre-arranged 10b5-1 plan. This reduces the immediate opportunistic signal compared to an unscheduled open-market purchase. Investors should consider this positive insider activity as a supportive factor, but further analysis of Alumis Inc.'s broader financial performance and market conditions is warranted before a stronger recommendation.

Keywords

ALUMIS INC., ALMS, Form 4, insider trading, share purchase, director, beneficial ownership, Samsara Opportunity Fund, Samsara BioCapital, Rule 10b5-1