CRL (Charles River Laboratories International, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by CRL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-27 | JAMES C FOSTER | Director | MIXED | — | — |
| 2026-08-20 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | MIXED | — | — |
| 2026-08-20 | Birgit Girshick | Chief Executive Officer | G | — | — |
| 2026-08-20 | Nancy C Andrews | Director | MIXED | — | — |
| 2026-08-13 | Birgit Girshick | Chief Executive Officer | MIXED | — | — |
| 2026-08-13 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | MIXED | — | — |
| 2026-08-11 | JAMES C FOSTER | Director | MIXED | — | — |
| 2026-08-11 | Joseph W LaPlume | EVP, Corp Strategy & Develop | G | — | — |
| 2026-08-10 | Michael Gunnar Knell | SVP, Finance and CAO | MIXED | — | — |
| 2026-08-10 | Victoria L Creamer | EVP & Chief People Officer | MIXED | — | — |
| 2026-08-06 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | Sell | — | — |
| 2026-08-06 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | Sell | — | — |
| 2026-07-01 | JAMES C FOSTER | Director | Sell | — | — |
| 2026-06-08 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | G | — | — |
| 2026-06-08 | JAMES C FOSTER | Director | G | — | — |
| 2026-06-08 | Birgit Girshick | Chief Executive Officer | G | — | — |
| 2026-06-03 | Steven Barg | Director | A | — | — |
| 2026-06-02 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | MIXED | — | — |
| 2026-06-02 | Victoria L Creamer | EVP & Chief People Officer | MIXED | — | — |
| 2026-06-02 | JAMES C FOSTER | Director | F | — | — |
| 2026-06-02 | Birgit Girshick | Chief Executive Officer | MIXED | — | — |
| 2026-06-02 | Michael Gunnar Knell | SVP, Finance and CAO | MIXED | — | — |
| 2026-06-02 | Joseph W LaPlume | EVP, Corp Strategy & Develop | MIXED | — | — |
| 2026-06-02 | Mark Mintz | EVP, Chief Information Officer | MIXED | — | — |
| 2026-06-02 | Glenn Coleman | EVP & Chief Financial Officer | A | — | — |
| 2026-05-28 | Joseph W LaPlume | EVP, Corp Strategy & Develop | F | — | — |
| 2026-05-28 | Michael Gunnar Knell | SVP, Finance and CAO | F | — | — |
| 2026-05-28 | Birgit Girshick | Chief Executive Officer | F | — | — |
| 2026-05-28 | Mark Mintz | EVP, Chief Information Officer | F | — | — |
| 2026-05-28 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | MIXED | — | — |
| 2026-05-28 | Victoria L Creamer | EVP & Chief People Officer | F | — | — |
| 2026-05-14 | Nancy C Andrews | Director | G | — | — |
| 2026-05-12 | Paul W Graves | Director | A | — | — |
| 2026-05-12 | Craig B. Thompson | Director | A | — | — |
| 2026-05-12 | Steven Barg | Director | A | — | — |
| 2026-05-11 | JAMES C FOSTER | Director | A | — | — |
| 2026-05-11 | VIRGINIA M WILSON | Director | A | — | — |
| 2026-05-11 | Reshema Kemps-Polanco | Director | A | — | — |
| 2026-05-11 | Mark J Enyedy | Director | A | — | — |
| 2026-05-11 | George Llado Sr. | Director | A | — | — |
| 2026-05-11 | Nancy C Andrews | Director | A | — | — |
| 2026-05-11 | MARTIN MACKAY | Director | A | — | — |
| 2026-05-11 | Abraham Ceesay | Director | A | — | — |
| 2026-05-04 | Glenn Coleman | EVP & Chief Financial Officer | A | — | — |
| 2026-03-05 | Birgit Girshick | Corporate Executive VP & COO | G | — | — |
| 2026-03-04 | Joseph W LaPlume | EVP, Corp Strategy & Develop | Buy | — | — |
| 2026-03-04 | JAMES C FOSTER | Chairman, President and CEO | A | — | — |
| 2026-02-03 | Victoria L Creamer | EVP & Chief People Officer | MIXED | — | — |
| 2026-02-03 | Joseph W LaPlume | EVP, Corp Strategy & Develop | MIXED | — | — |
| 2026-02-02 | Shannon M Parisotto | CEVP, Disc & Safety Assessment | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Corporate Executive VP | 224,478 | — |
| — | — | 107,432 | — |
| — | Chief Executive Officer | 79,288 | — |
| — | Corp. Executive VP | 74,390 | — |
| — | President & COO | 68,301 | — |
| — | Director | 65,099 | — |
| — | Director | 43,480 | — |
| — | Director | 41,596 | — |
| — | Director | 40,529 | — |
| — | Corp. Sr VP, GC and Corp. Sec | 37,109 | — |
| — | CEVP, Disc & Safety Assessment | 35,356 | — |
| — | EVP & Chief People Officer | 34,230 | — |
| — | Executive Vice President | 32,962 | — |
| — | Director | 32,408 | — |
| — | EVP, Corp Strategy & Develop | 31,041 | — |
| — | Director | 31,010 | — |
| — | Director | 30,079 | — |
| — | EVP & Chief Financial Officer | 27,752 | — |
| — | Corporate Executive VP & CFO | 27,064 | — |
| — | Corporate Executive VP & CCO | 25,805 | — |
| — | Director | 18,230 | — |
| — | Corporate Executive VP & CFO | 17,482 | — |
| — | Officer | 16,507 | — |
| — | Director | 15,730 | — |
| — | Director | 15,636 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CRL quote page; the site-wide leaderboard is on the insider transactions hub.