As of the latest Form 4 filed Jul 1, 2026.
What Charles River Laboratories insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 68 most recent filings for CRL.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-01 | 2026-06-29 | FOSTER JAMES C Director | SSale | −75.0K | $225.00 | $16.9M | Yes (planned) | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | FOSTER JAMES C Director | GGift | +10.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | FOSTER JAMES C, Director | GGift | −10.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | FOSTER JAMES C, Director | GGift | +20.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | FOSTER JAMES C, Director | GGift | −20.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | FOSTER JAMES C, Director | GGift | +153K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | FOSTER JAMES C, Director | GGift | −153K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | Girshick Birgit Chief Executive Officer | GGift | +3.39K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | Girshick Birgit, Chief Executive Officer | GGift | −3.39K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | Parisotto Shannon M CEVP, Disc & Safety Assessment | GGift | +1.53K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | Parisotto Shannon M, CEVP, Disc & Safety Assessment | GGift | −1.53K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Barg Steven Director | AAward | +422.00 | $174.79 | $73.8K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-31 | Mintz Mark EVP, Chief Information Officer | FTax | −64.00 | $180.71 | $11.6K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-31 | LaPlume Joseph W EVP, Corp Strategy & Develop | FTax | −235.00 | $180.71 | $42.5K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-31 | Knell Michael Gunnar SVP, Finance and CAO | FTax | −48.00 | $180.71 | $8.67K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-31 | Girshick Birgit Chief Executive Officer | FTax | −378.00 | $180.71 | $68.3K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-31 | Creamer Victoria L EVP & Chief People Officer | FTax | −194.00 | $180.71 | $35.1K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-31 | Parisotto Shannon M CEVP, Disc & Safety Assessment | FTax | −170.00 | $180.71 | $30.7K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | Mintz Mark EVP, Chief Information Officer | FTax | −305.00 | $180.71 | $55.1K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | LaPlume Joseph W EVP, Corp Strategy & Develop | FTax | −744.00 | $180.71 | $134K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | Knell Michael Gunnar SVP, Finance and CAO | FTax | −152.00 | $180.71 | $27.5K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | Girshick Birgit Chief Executive Officer | FTax | −1.20K | $180.71 | $218K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | FOSTER JAMES C Director | FTax | −1.60K | $180.71 | $288K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | Creamer Victoria L EVP & Chief People Officer | FTax | −616.00 | $180.71 | $111K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-30 | Parisotto Shannon M CEVP, Disc & Safety Assessment | FTax | −551.00 | $180.71 | $99.6K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Coleman Glenn EVP & Chief Financial Officer | AAward | +6.64K | $180.71 | $1.20M | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Mintz Mark EVP, Chief Information Officer | AAward | +2.53K | $180.71 | $458K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | LaPlume Joseph W EVP, Corp Strategy & Develop | AAward | +5.26K | $180.71 | $950K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Knell Michael Gunnar SVP, Finance and CAO | AAward | +1.84K | $180.71 | $332K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Girshick Birgit Chief Executive Officer | AAward | +9.96K | $180.71 | $1.80M | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Creamer Victoria L EVP & Chief People Officer | AAward | +5.13K | $180.71 | $928K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Parisotto Shannon M CEVP, Disc & Safety Assessment | AAward | +4.36K | $180.71 | $788K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Creamer Victoria L EVP & Chief People Officer | FTax | −148.00 | $156.73 | $23.2K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Parisotto Shannon M CEVP, Disc & Safety Assessment | FTax | −105.00 | $156.73 | $16.5K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Mintz Mark EVP, Chief Information Officer | FTax | −47.00 | $156.73 | $7.37K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Girshick Birgit Chief Executive Officer | FTax | −242.00 | $156.73 | $37.9K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Knell Michael Gunnar SVP, Finance and CAO | FTax | −37.00 | $156.73 | $5.80K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | LaPlume Joseph W EVP, Corp Strategy & Develop | FTax | −185.00 | $156.73 | $29.0K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Creamer Victoria L EVP & Chief People Officer | FTax | −198.00 | $160.30 | $31.7K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Parisotto Shannon M CEVP, Disc & Safety Assessment | FTax | −168.00 | $160.30 | $26.9K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Mintz Mark EVP, Chief Information Officer | FTax | −64.00 | $160.30 | $10.3K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Girshick Birgit Chief Executive Officer | FTax | −376.00 | $160.30 | $60.3K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Knell Michael Gunnar SVP, Finance and CAO | FTax | −50.00 | $160.30 | $8.02K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | LaPlume Joseph W EVP, Corp Strategy & Develop | FTax | −243.00 | $160.30 | $39.0K | No | Form 4 ↗ |
| 2026-05-28 | 2026-02-06 | Parisotto Shannon M CEVP, Disc & Safety Assessment | GGift | +7.17K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-28 | 2026-02-06 | Parisotto Shannon M, CEVP, Disc & Safety Assessment | GGift | −7.17K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-12 | Andrews Nancy C Director | GGift | +3.96K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-12 | Andrews Nancy C, Director | GGift | −3.96K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Barg Steven Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Thompson Craig B. Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Graves Paul W Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Ceesay Abraham Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | MACKAY MARTIN Director | AAward | +1.41K | $177.62 | $250K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | MACKAY MARTIN, Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Andrews Nancy C Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Llado George Sr. Director | AAward | +450.00 | $177.62 | $79.9K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Llado George Sr., Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Enyedy Mark J Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Kemps-Polanco Reshema Director | AAward | +535.00 | $177.62 | $95.0K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Kemps-Polanco Reshema, Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | WILSON VIRGINIA M Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | FOSTER JAMES C Director | AAward | +422.00 | $177.62 | $75.0K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | FOSTER JAMES C, Director | AAward | +1.44K | $177.62 | $255K | No | Form 4 ↗ |
| 2026-05-04 | 2026-05-01 | Coleman Glenn EVP & Chief Financial Officer | AAward | +21.1K | $165.78 | $3.50M | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-04 | Girshick Birgit Corporate Executive VP & COO | GGift | −328.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-04 | 2026-03-03 | LaPlume Joseph W EVP, Corp Strategy & Develop | PPurchase | +25.00 | $174.54 | $4.36K | No | Form 4 ↗ |
| 2026-03-04 | 2026-03-02 | FOSTER JAMES C Chairman, President and CEO | AAward | +16.8K | $178.61 | $3.00M | No | Form 4 ↗ |
| 2024-05-03 | 2024-05-02 | Pease Flavia Corporate Executive VP & CFO | FTax | −893.00 | $232.69 | $208K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also CRL’s full analysis or the market-wide insider trading feed. The tabs above jump to CRL’s other SEC data.
Source: SEC Form 4 filings for CRL, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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