James B. Tananbaum, Director, 10% Owner at ALUMIS INC. (ALMS), bought 625,248 shares at $6.19 ($3.8M) on 2025-11-18, disclosed to the SEC on 2025-11-19.
Open-market purchase of $3.8M ALMS by Director, 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade D.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $5.59 | 150,000 | $839K | 21.9% |
| 2 | $5.60 | 50,000 | $280K | 7.3% |
| 3 | $6.19 | 117,374 | $727K | 19.0% |
| 4 | $6.19 | 117,374 | $727K | 19.0% |
| 5 | $6.56 | 190,500 | $1.2M | 32.7% |
| Total | $6.11 avg | 625,248 |
| $3.8M |
| 100% |
| Filing → |
| ALMS | BUY | 2025-11-25 | $1.1M | — | Filing → |
| ALMS | BUY | 2025-05-06 | $202K | — | Filing → |
| ALMS | BUY | 2024-07-03 | $40.0M | — | Filing → |