The most recent Charles River Laboratories International (CRL) insider transaction: Shannon M Parisotto (Cevp, Disc Safety Assessment) acquired 981 shares by exercising or converting derivatives on Oct 5, 2026, reported on Form 4 on Oct 7, 2026. So far in the quarter ending Dec 31, 2026, insider holdings showed no net buying or selling.
Over the trailing 12 months, CRL insiders bought $7,338 worth of shares (35 shares) and sold $42.91 million worth (166.97K shares) in open-market trades.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | C Richard Reese | Director | 65,541 | 0 | 65,541 | 15.5% | 17 May, 2023 |
| 2 | Birgit Girshick | Chief Executive Officer | 35,485 | 0 | 35,485 | 8.4% | 19 Aug, 2026 |
| 3 | Robert J Bertolini | Director | 32,802 | 0 | 32,802 | 7.7% | 15 May, 2024 |
| 4 | James C Foster | Chairman, President And Ceo | 31,596 | 0 | 31,596 | 7.5% | 26 Aug, 2026 |
| 5 | Joseph W Laplume | Evp, Corp Strategy Develop | 31,041 | 0 | 31,041 | 7.3% | 11 Aug, 2026 |
| 6 | Victoria L Creamer | Evp Chief People Officer | 30,051 | 0 | 30,051 | 7.1% | 10 Aug, 2026 |
| 7 | Glenn Coleman | Evp Chief Financial Officer | 27,762 | 0 | 27,762 | 6.6% | 02 Oct, 2026 |
| 8 | David Ross Smith | Corporate Executive Vp Cfo | 25,819 | 0 | 25,819 | 6.1% | 04 Mar, 2022 |
| 9 | William D Barbo | Corporate Executive Vp Cco | 0 | 23,337 | 23,337 | 5.5% | 08 Nov, 2024 |
| 10 | Flavia Pease | Corporate Executive Vp Cfo | 17,297 | 0 | 17,297 | 4.1% | 02 Jun, 2025 |
| 11 | Martin Mackay | Director | 17,137 | 0 | 17,137 | 4.0% | 11 May, 2026 |
| 12 | Richard F Wallman | Director | 12,386 | 0 | 12,386 | 2.9% | 08 Nov, 2024 |
| 13 | Michael Gunnar Knell | Svp, Finance And Cao | 11,852 | 0 | 11,852 | 2.8% | 10 Aug, 2026 |
| 14 | Mark Mintz | Evp, Chief Information Officer | 9,546 | 0 | 9,546 | 2.3% | 02 Jun, 2026 |
| 15 | Deborah Turner Kochevar | Director | 7,894 | 0 | 7,894 | 1.9% | 15 May, 2024 |
| 16 | George Sr. Llado | Director | 6,702 | 0 | 6,702 | 1.6% | 11 May, 2026 |
| 17 | Virginia M Wilson | Director | 6,349 | 0 | 6,349 | 1.5% | 11 May, 2026 |
| 18 | George Massaro | Director | 5,575 | 0 | 5,575 | 1.3% | 16 May, 2025 |
| 19 | Shannon M Parisotto | Cevp, Disc Safety Assessment | 4,807 | 0 | 4,807 | 1.1% | 07 Oct, 2026 |
| 20 | Reshema Kemps-Polanco | Director | 4,563 | 0 | 4,563 | 1.1% | 11 May, 2026 |
| 21 | Craig B. Thompson | Director | 3,851 | 0 | 3,851 | 0.9% | 12 May, 2026 |
| 22 | Steven Barg | Director | 3,287 | 0 | 3,287 | 0.8% | 03 Jun, 2026 |
| 23 | Mark J Enyedy | Director | 2,384 | 0 | 2,384 | 0.6% | 11 May, 2026 |
| 24 | Abraham Ceesay | Director | 2,384 | 0 | 2,384 | 0.6% | 11 May, 2026 |
| 25 | Paul W Graves | Director | 2,384 | 0 | 2,384 | 0.6% | 12 May, 2026 |
| 26 | Nancy C Andrews | Director | 1,438 | 0 | 1,438 | 0.3% | 18 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 05 Oct, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Acquired M | 981 | $208.44 | $204.48K | 5,788 | Direct |
| 05 Oct, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Disposed S | 981 | $308.44 | $302.58K | 4,807 | Direct |
| 05 Oct, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Disposed M | 981 | $0.00 | $0 | 2,944 | Direct |
| 30 Sep, 2026 | Glenn Coleman | Evp Chief Financial Officer | Acquired P | 10 | $297.43 | $2.97K | 27,762 | Direct |
| 25 Aug, 2026 | James C Foster | Director | Acquired M | 21,132 | $194.12 | $4.10Mn | 52,728 | Direct |
| 25 Aug, 2026 | James C Foster | Director | Acquired M | 12,429 | $208.44 | $2.59Mn | 65,157 | Direct |
| 25 Aug, 2026 | James C Foster | Director | Disposed S | 33,561 | $300.00 | $10.07Mn | 31,596 | Direct |
| 25 Aug, 2026 | James C Foster | Director | Disposed M | 21,132 | $0.00 | $0 | 7,044 | Direct |
| 25 Aug, 2026 | James C Foster | Director | Disposed M | 12,429 | $0.00 | $0 | 12,429 | Direct |
| 19 Aug, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Acquired M | 2,039 | $194.12 | $395.81K | 6,846 | Direct |
| 19 Aug, 2026 | Birgit Girshick | Chief Executive Officer | Disposed G | 528 | $0.00 | $0 | 35,485 | Direct |
| 19 Aug, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Disposed S | 2,039 | $294.12 | $599.71K | 4,807 | Direct |
| 19 Aug, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Disposed M | 2,039 | $0.00 | $0 | 2,039 | Direct |
| 18 Aug, 2026 | Nancy C Andrews | Director | Acquired M | 573 | $164.30 | $94.14K | 2,011 | Direct |
| 18 Aug, 2026 | Nancy C Andrews | Director | Disposed S | 573 | $285.24 | $163.44K | 1,438 | Direct |
| 18 Aug, 2026 | Nancy C Andrews | Director | Disposed M | 573 | $0.00 | $0 | 0 | Direct |
| 11 Aug, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Acquired M | 3,714 | $179.66 | $667.26K | 8,521 | Direct |
| 11 Aug, 2026 | Birgit Girshick | Chief Executive Officer | Acquired M | 6,500 | $179.66 | $1.17Mn | 42,513 | Direct |
| 11 Aug, 2026 | Birgit Girshick | Chief Executive Officer | Disposed S | 6,500 | $279.90 | $1.82Mn | 36,013 | Direct |
| 11 Aug, 2026 | Shannon M Parisotto | Cevp, Disc Safety Assessment | Disposed S | 3,714 | $279.66 | $1.04Mn | 4,807 | Direct |