Charles River Laboratories International, Inc. (CRL) Insider Trading
Over the last 3 months, CRL insiders made 0 open-market buys and 18 sales, a net sale of -$42.6M (SEC Form 4). Over the last 6 months, 385 institutions increased and 409 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
18
Net (3m)
-$42.6M
Insider trades by month Buys Sells
May
Aug
Jan
Mar
Jul
Aug
Context3-month price +58.4%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 27, 2026 | FOSTER JAMES Cdirector | Option | 12,429 | $208.44 |
| Aug 27, 2026 | FOSTER JAMES Cdirector | Option | 21,132 | $194.12 |
| Aug 27, 2026 | FOSTER JAMES Cdirector | Sell | 33,561 | $300.00 |
| Aug 20, 2026 | Andrews Nancy Cdirector | Option | 573 | $164.30 |
| Aug 20, 2026 | Parisotto Shannon Mofficer: CEVP, Disc & Safety Assessment | Option | 2,039 | $194.12 |
| Aug 20, 2026 | Andrews Nancy Cdirector | Sell | 573 | $285.24 |
| Aug 20, 2026 | Parisotto Shannon Mofficer: CEVP, Disc & Safety Assessment | Sell | 2,039 | $294.12 |
| Aug 13, 2026 | Parisotto Shannon Mofficer: CEVP, Disc & Safety Assessment | Sell | 3,714 | $279.66 |
| Aug 13, 2026 | Girshick Birgitdirector, officer: Chief Executive Officer | Sell | 6,500 | $279.90 |
| Aug 13, 2026 | Girshick Birgitdirector, officer: Chief Executive Officer | Option | 6,500 | $179.66 |
| Aug 13, 2026 | Parisotto Shannon Mofficer: CEVP, Disc & Safety Assessment | Option | 3,714 | $179.66 |
| Aug 11, 2026 | FOSTER JAMES Cdirector | Sell | 28,733 | $275.00 |
| Aug 11, 2026 | FOSTER JAMES Cdirector | Option | 28,733 | $179.66 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 404 | $258.53 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 213 | $262.37 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 1,274 | $259.07 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 620 | $263.94 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 1,205 | $258.53 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 810 | $261.45 |
| Aug 10, 2026 | Creamer Victoria Lofficer: EVP & Chief People Officer | Sell | 4,179 | $259.16 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 736 | $258.53 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Option | 404 | $179.66 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Option | 736 | $208.44 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 901 | $260.63 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Option | 1,205 | $194.12 |
| Aug 10, 2026 | Knell Michael Gunnarofficer: SVP, Finance and CAO | Sell | 482 | $265.17 |
| Aug 10, 2026 | Creamer Victoria Lofficer: EVP & Chief People Officer | Option | 4,179 | $179.66 |
| Aug 6, 2026 | Parisotto Shannon Mofficer: CEVP, Disc & Safety Assessment | Sell | 5,046 | $263.00 |
| Jul 1, 2026 | FOSTER JAMES Cdirector | Sell | 75,000 | $225.00 |
| Jun 3, 2026 | Barg Stevendirector | Grant | 422 | $174.79 |
Source: CRL SEC Form 4 filings, latest Aug 27, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CRL positions over the last 6 months (SEC Form 13F).
Increased
385
New positions
155
Reduced
409
Sold out
68
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Increased | 4.2M | Aug 13, 2026 |
| BLACKROCK, INC. | Increased | 3.9M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 3.8M | Aug 7, 2026 |
| FMR LLC | Increased | 3.5M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3.2M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 3.1M | Aug 13, 2026 |
| Invesco Ltd. | Increased | 3.0M | Aug 14, 2026 |
| INVESCO LTD. | Reduced | 2.4M | May 12, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 2.3M | May 8, 2026 |
| HARRIS ASSOCIATES L P | Increased | 2.2M | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 2.2M | Aug 13, 2026 |
| HARRIS ASSOCIATES L P | Increased | 2.2M | May 15, 2026 |
| ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC | Reduced | 2.0M | May 5, 2026 |
| Allspring Global Investments Holdings, LLC | Reduced | 1.9M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 1.9M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.