MACKAY MARTIN (CIK 1414815) reported 6 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-05-11). Recent activity: Buy CRL (1,438 shares), Buy CRL (1,407 shares), Sell SWTX (20,023 shares), Buy CRL (946 shares), Buy CRL (815 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-11 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) | Director | Buy | 1,438 | $255,418 |
| 2026-05-11 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) | Director | Buy | 1,407 | $249,911 |
| 2025-07-02 | SpringWorks Therapeutics, Inc. (SWTX) | Director | Sell | 20,023 | $0 |
| 2025-05-23 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) | Director | Buy | 946 | $127,691 |
| 2025-05-23 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) | Director | Buy | 815 | $110,009 |
| 2025-05-15 | SpringWorks Therapeutics, Inc. (SWTX) | Director | Buy | 10,060 | $0 |
Source: SEC Form 4 filings · as of 2026-05-11