Alumis Inc.
Alumis Inc. (ALMS) has a dated narrative snapshot, but its priced-in model claim is temporarily suppressed because the model-solve record is unavailable or has changed.
186 institutional managers reported holding ALMS in 13F filings for the quarter ended 2026-03-31. Together they hold about 79% of the company; the top 10 hold 41%. 81 opened new positions that quarter. Held by BlackRock, Vanguard Group, T. Rowe Price, among others. On the short side, 12.7M shares were sold short as of the 2026-06-15 count, about 10% of shares outstanding (8.7 days of typical volume to cover).
Quarterly 13F filings arrive up to 45 days after quarter end, so the picture is never current (filed through 2026-05-29). Nothing here is investment advice.
Open-market insider buys at ALMS over the trailing three years: 2024: 6 buys totaling $120.00M; 2025: 41 buys totaling $22.27M; 2026: 7 buys totaling $31.00M. 14 officers and directors are on file.
Code P open-market purchases from SEC Form 4 filings, non-derivative, excluding scheduled 10b5-1 plans. Nothing here is investment advice.
ALMS's recent reports: the day-one move, then what the following quarter actually did.
| report | day one | next quarter |
|---|---|---|
| 2024-11-14 | -18.3% | -15.8% |
| 2025-03-20 | -19.7% | +34.9% |
| 2025-05-15 | +19.7% | -33.4% |
| 2025-08-14 | -1.8% | +5.2% |
Day-one is the close-to-close move around the filing. Nothing here is investment advice.
ALMS's latest 8-K filings: 2026-07-02 (items 5.07); 2026-06-29 (items 8.01, 9.01); 2026-05-14 (items 2.02, 9.01); 2026-03-30 (items 8.01, 9.01); 2026-03-19 (items 2.02, 9.01).
Item codes are the SEC's own classification of what each report discloses. Dates link to the filing on EDGAR. Nothing here is investment advice.
Model solve date: 2026-Q2
Narrative composed: July 25, 2026
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