Charles River Laboratories International, Inc. (CRL) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, Charles River Laboratories International's top three insider holders are James C Foster (Chairman, President And Ceo, 279.69K shares), C Richard Reese (Director, 65.54K shares), Birgit Girshick (Corporate Executive Vp Coo, 40.42K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
James C Foster Chairman, President And Ceo 279,693 0 04 Mar, 2026
C Richard Reese 65,541 0 17 May, 2023
Birgit Girshick Corporate Executive Vp Coo 0 40,417 05 Mar, 2026
Robert J Bertolini 32,802 0 15 May, 2024
George M Jr Milne 29,079 0 10 May, 2021
Joseph W Laplume Evp, Corp Strategy Develop 27,448 0 04 Mar, 2026
Birgit Girshick Corporate Executive Vp Coo 26,913 0 02 Feb, 2026
Shannon M Parisotto Cevp, Disc Safety Assessment 0 26,554 01 Mar, 2024
Victoria L Creamer Evp Chief People Officer 26,072 0 02 Feb, 2026
David Ross Smith Corporate Executive Vp Cfo 25,819 0 04 Mar, 2022
William D Barbo Corporate Executive Vp Cco 0 23,337 08 Nov, 2024
Flavia Pease Corporate Executive Vp Cfo 17,297 0 02 Jun, 2025
Shannon M Parisotto Cevp, Disc Safety Assessment 15,184 0 30 Jan, 2026
Michael Gunnar Knell Csvp, Cao, Interim Cfo 14,602 0 02 Feb, 2026
Martin Mackay 14,292 0 23 May, 2025
Richard F Wallman 12,386 0 08 Nov, 2024
Deborah Turner Kochevar 7,894 0 15 May, 2024
Mark Mintz Evp, Chief Information Officer 7,492 0 02 Feb, 2026
James C Foster Chairman, President And Ceo 0 6,017 17 May, 2023
George Massaro 5,575 0 16 May, 2025
Virginia M Wilson 4,911 0 23 May, 2025
George Sr. Llado 4,814 0 22 May, 2025
Nancy C Andrews 3,964 0 23 May, 2025
William D Barbo Corporate Executive Vp Cco 3,433 0 30 May, 2024
Reshema Kemps-Polanco 2,590 0 23 May, 2025
Craig B. Thompson 2,413 0 23 May, 2025
Steven Barg 1,427 0 04 Jun, 2025
Abraham Ceesay 946 0 03 Jun, 2025
Paul W Graves 946 0 04 Jun, 2025
Mark J Enyedy 946 0 04 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
04 Mar, 2026 Birgit Girshick Common Stock D 328 $0.00 40,417 I G
03 Mar, 2026 Joseph W Laplume Common Stock A 25 $174.54 27,448 D P
02 Mar, 2026 James C Foster Common Stock A 16,796 $178.61 279,693 D A
30 Jan, 2026 Joseph W Laplume Common Stock A 5,456 $0.00 29,172 D A
30 Jan, 2026 Joseph W Laplume Common Stock D 1,749 $211.68 27,423 D F
30 Jan, 2026 Birgit Girshick Common Stock A 9,500 $0.00 29,974 D A
30 Jan, 2026 James C Foster Common Stock A 39,031 $0.00 268,341 D A
30 Jan, 2026 Michael Gunnar Knell Common Stock A 1,668 $0.00 15,128 D A
30 Jan, 2026 Victoria L Creamer Common Stock A 5,006 $0.00 27,368 D A
30 Jan, 2026 Mark Mintz Common Stock A 1,797 $0.00 8,147 D A
30 Jan, 2026 Victoria L Creamer Common Stock D 1,296 $211.68 26,072 D F
30 Jan, 2026 James C Foster Common Stock D 14,664 $211.68 253,677 D F
30 Jan, 2026 Michael Gunnar Knell Common Stock D 526 $211.68 14,602 D F
30 Jan, 2026 Mark Mintz Common Stock D 655 $211.68 7,492 D F
30 Jan, 2026 Birgit Girshick Common Stock D 3,061 $211.68 26,913 D F
30 Jan, 2026 Shannon M Parisotto Common Stock A 4,236 $0.00 16,251 D A
30 Jan, 2026 Shannon M Parisotto Common Stock D 1,067 $211.68 15,184 D F
06 Nov, 2025 Michael Gunnar Knell Common Stock A 2,926 $170.88 13,460 D A
18 Aug, 2025 Joseph W Laplume Common Stock D 800 $157.60 24,116 D S
07 Aug, 2025 Joseph W Laplume Common Stock D 400 $150.04 24,916 D S