Alumis Inc
Ownership
Ownership Structure
Who owns Alumis Inc (ALMS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 75.1% of the shares are freely tradable; institutional investors hold 99.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 5.54 | 7,170,868 | +57.0 | 03/31/2026 |
| Deep Track Capital, LP | 4.90 | 6,348,558 | -6.3 | 06/30/2026 |
| Samsara BioCapital, LLC | 4.90 | 6,345,219 | +0.0 | 06/30/2026 |
| Foresite Capital Management V, LLC | 4.56 | 5,896,995 | +0.0 | 06/30/2026 |
| venBio Partners LLC | 3.50 | 4,528,408 | +0.0 | 06/30/2026 |
| Foresite Capital Management VI LLC | 3.28 | 4,247,670 | +0.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.12 | 4,032,266 | +0.0 | 03/31/2026 |
| Cormorant Asset Management, LLC | 3.05 | 3,949,241 | +8.6 | 03/31/2026 |
| Nextech Invest, Ltd. | 2.74 | 3,540,998 | +0.0 | 06/30/2026 |
| T. Rowe Price Associates, Inc. | 2.54 | 3,286,753 | +6,418.5 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Akkaraju Srinivas | Director | 7,235,809 | 56,439,310 $ | Sep 8, 2026 | indirect |
| Hardiman Roy C. | Chief Business & Strategy Ofcr | 207,746 | 1,620,419 $ | Aug 3, 2026 | direct |
| Drappa Jorn | Chief Medical Officer | 56,892 | 443,758 $ | Aug 3, 2026 | direct |
| Bradley Mark Christopher | Chief Development Officer | 48,533 | 378,557 $ | Aug 3, 2026 | direct |
| Goldstein David M | Chief Scientific Officer | 30,970 | 241,566 $ | Aug 3, 2026 | direct |
| Schroer John R. | Chief Financial Officer | 24,718 | 192,800 $ | Aug 3, 2026 | direct |
| Pangali Sanam | Chief Legal Officer | 9,747 | 76,027 $ | Aug 3, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 8, 2026 | Akkaraju Srinivas | Director | Buy | 273,290 | 10.63 | 2,904,280 |
| Sep 8, 2026 | Akkaraju Srinivas | Director | Buy | 273,291 | 10.63 | 2,904,291 |
| Sep 8, 2026 | Akkaraju Srinivas | Director | Sell | 48,065 | 10.55 | 507,009 |
| Sep 8, 2026 | Akkaraju Srinivas | Director | Sell | 48,066 | 10.55 | 507,019 |
| Sep 4, 2026 | Akkaraju Srinivas | Director | Buy | 220,070 | 11.17 | 2,458,842 |
| Aug 3, 2026 | Pangali Sanam | Chief Legal Officer | Sell | 1,364 | 26.37 | 35,969 |
| Aug 3, 2026 | Bradley Mark Christopher | Chief Development Officer | Sell | 2,572 | 26.37 | 67,824 |
| Aug 3, 2026 | Drappa Jorn | Chief Medical Officer | Sell | 2,447 | 26.37 | 64,527 |
| Aug 3, 2026 | Goldstein David M | Chief Scientific Officer | Sell | 2,596 | 26.37 | 68,457 |
| Aug 3, 2026 | Schroer John R. | Chief Financial Officer | Sell | 3,282 | 26.37 | 86,546 |
| Aug 3, 2026 | Hardiman Roy C. | Chief Business & Strategy Ofcr | Sell | 2,692 | 26.37 | 70,988 |
| Jul 6, 2026 | Pangali Sanam | Chief Legal Officer | Sell | 5,000 | 28.00 | 140,000 |
| Jul 6, 2026 | Pangali Sanam | Chief Legal Officer | Other | 5,000 | 5.06 | 25,300 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.