ALMS insider buying – Alumis Inc.
16 insider purchases since 2016 worth $82.3M by 6 different insiders. Last 12 months: 11 purchases, $40.4M. Most recent filing: 2026-09-09.
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Tananbaum James B. Director | $50.1M 3× · 3,419,638 sh | 2024-07-01 2026-01-08 | – | 1,123,337 shares as of 2026-04-03 | Holds - never sold |
| AKKARAJU SRINIVAS Director | $31.3M 9× · 3,160,499 sh | 2025-05-02 2026-09-04 | 1× · $1.0M last 2026-09-08 | 6,740,847 shares as of 2026-09-09 | Sold part |
| Foresite Labs Affiliates 2021, LLC 10% Owner | $532,925 1× · 72,212 sh | 2025-11-21 2025-11-21 | – | 0 shares as of 2026-04-03 | Sold everything |
| Foresite Labs Management I, LLC 10% Owner | $202,300 1× · 45,000 sh | 2025-05-02 2025-05-02 | – | 4,247,670 shares as of 2025-05-06 | Holds - never sold |
| Colowick Alan Director | $129,472 1× · 18,404 sh | 2025-04-01 2025-04-01 | – | 16,104 shares as of 2025-04-03 | Holds - never sold |
| Babler Martin CEO | $100,786 1× · 15,650 sh | 2025-04-01 2025-04-01 | – | 109,454 shares as of 2025-07-31 | Holds - never sold |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 3 | $27.7M | 2 | 7 | $1.5M |
| 2025 | 12 | $14.6M | 6 | – | – |
| 2024 | 1 | $40.0M | 1 | – | – |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-09 | AKKARAJU SRINIVAS | Director | 986,721 | $10.87 | $10.7M | +25.0% | SEC |
| 2026-01-13 | AKKARAJU SRINIVAS | Director | 588,235 | $17.00 | $10.0M | +46.5% | SEC |
| 2026-01-12 | Tananbaum James B. | Director | 411,764 | $17.00 | $7.0M | +7.8% | SEC |
| 2025-12-09 | AKKARAJU SRINIVAS | Director | 186,377 | $9.84 | $1.8M | +17.3% | SEC |
| 2025-12-04 | AKKARAJU SRINIVAS | Director | 262,027 | $7.79 | $2.0M | +32.1% | SEC |
| 2025-12-01 | AKKARAJU SRINIVAS | Director | 173,589 | $7.55 | $1.3M | +27.0% | SEC |
| 2025-11-25 | Foresite Labs Affiliates 2021, LLC | 10% Owner | 72,212 | $7.38 | $532,925 | +2.8% | SEC |
| 2025-11-24 | AKKARAJU SRINIVAS | Director | 125,743 | $7.20 | $905,350 | +24.3% | SEC |
| 2025-11-19 | Tananbaum James B. | Director | 507,874 | $6.09 | $3.1M | +25.0% | SEC |
| 2025-11-19 | AKKARAJU SRINIVAS | Director | 241,338 | $6.34 | $1.5M | +87.4% | SEC |
| 2025-11-17 | AKKARAJU SRINIVAS | Director | 276,179 | $5.25 | $1.4M | SEC | |
| 2025-05-06 | Foresite Labs Management I, LLC | 10% Owner | 45,000 | $4.50 | $202,300 | +1.1% | SEC |
| 2025-05-06 | AKKARAJU SRINIVAS | Director | 320,290 | $4.61 | $1.5M | +9.8% | SEC |
| 2025-04-03 | Colowick Alan | Director | 18,404 | $7.04 | $129,472 | SEC | |
| 2025-04-03 | Babler Martin | CEO | 15,650 | $6.44 | $100,786 | +17.2% | SEC |
| 2024-07-03 | Tananbaum James B. | Director | 2,500,000 | $16.00 | $40.0M | +81.0% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-09 | AKKARAJU SRINIVAS | Director | 96,131 | $10.55 | $1.0M | Sale | SEC |
| 2026-08-05 | Schroer John R. | CFO | 3,282 | $26.37 | $86,546 | Sale | SEC |
| 2026-08-05 | Hardiman Roy C. | Officer | 2,692 | $26.37 | $70,988 | Sale | SEC |
| 2026-08-05 | Goldstein David M | Officer | 2,596 | $26.37 | $68,457 | Sale | SEC |
| 2026-08-05 | Drappa Jorn | Officer | 2,447 | $26.37 | $64,527 | Sale | SEC |
| 2026-08-05 | Bradley Mark Christopher | Officer | 2,572 | $26.37 | $67,824 | Sale | SEC |
| 2026-07-08 | Pangali Sanam | Officer | 5,000 | $28.00 | $140,000 | Sale | SEC |
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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