Huber Martin H. Jr. (CIK 1653276) reported 8 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-02-06). Recent activity: Buy SNDX (24,000 shares), Sell MRSN (9,573 shares), Buy MRSN (6,670 shares), Sell MRSN (2,012 shares), Buy SNDX (5,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-06 | Syndax Pharmaceuticals Inc (SNDX) | Director | Buy | 24,000 | $0 |
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) | President, CEO | Sell | 9,573 | $0 |
| 2025-09-15 | Mersana Therapeutics, Inc. (MRSN) | President, CEO | Buy | 6,670 | $0 |
| 2025-09-15 | Mersana Therapeutics, Inc. (MRSN) | President, CEO | Sell | 2,012 | $14,708 |
| 2025-05-19 | Syndax Pharmaceuticals Inc (SNDX) | Director | Buy | 5,000 | $44,950 |
| 2025-02-07 | Syndax Pharmaceuticals Inc (SNDX) | Director | Buy | 25,000 | $0 |
| 2025-01-17 | Mersana Therapeutics, Inc. (MRSN) | President, CEO | Buy | 11,062 | $0 |
| 2025-01-17 | Mersana Therapeutics, Inc. (MRSN) | President, CEO | Sell | 4,514 | $2,618 |
Source: SEC Form 4 filings · as of 2026-02-06