Charles River Laboratories
Ownership
Ownership Structure
Who owns Charles River Laboratories (CRL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.0% of the shares are freely tradable; institutional investors hold 123.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.08 | 3,859,100 | +2.8 | 03/31/2026 |
| FMR Inc | 7.24 | 3,456,244 | +99.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.71 | 3,202,204 | +0.0 | 03/31/2026 |
| Amvescap Plc. | 5.02 | 2,397,252 | -11.1 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.81 | 2,294,670 | +0.0 | 03/31/2026 |
| Harris Associates L.P. | 4.69 | 2,241,144 | +4.1 | 06/30/2026 |
| Allspring Global Investments Holdings, LLC | 3.99 | 1,905,247 | -4.4 | 06/30/2026 |
| State Street Corp | 3.92 | 1,873,618 | +0.1 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.45 | 1,648,450 | -0.2 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Contrafund | 3.82 | 1,825,755 | +1.0 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Girshick Birgit | Chief Executive Officer | 35,485 | 9,996,125 $ | Aug 19, 2026 | direct |
| Foster James C | Director | 31,596 | 8,900,593 $ | Aug 25, 2026 | direct |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | 31,041 | 8,744,250 $ | Aug 10, 2026 | direct |
| Creamer Victoria L | EVP & Chief People Officer | 30,051 | 8,465,367 $ | Aug 6, 2026 | direct |
| Knell Michael Gunnar | SVP, Finance and CAO | 11,852 | 3,338,708 $ | Aug 6, 2026 | direct |
| Parisotto Shannon M | CEVP, Disc & Safety Assessment | 4,807 | 1,354,132 $ | Aug 19, 2026 | direct |
| Andrews Nancy C | Director | 1,438 | 405,085 $ | Aug 18, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 25, 2026 | Foster James C | Director | Sell | 33,561 | 300.00 | 10,068,300 |
| Aug 25, 2026 | Foster James C | Director | Other | 12,429 | 208.44 | 2,590,701 |
| Aug 25, 2026 | Foster James C | Director | Other | 21,132 | 194.12 | 4,102,144 |
| Aug 19, 2026 | Girshick Birgit | Chief Executive Officer | Other | 528 | 0.00 | – |
| Aug 19, 2026 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Sell | 2,039 | 294.12 | 599,711 |
| Aug 19, 2026 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Other | 2,039 | 194.12 | 395,811 |
| Aug 18, 2026 | Andrews Nancy C | Director | Sell | 573 | 285.24 | 163,443 |
| Aug 18, 2026 | Andrews Nancy C | Director | Other | 573 | 164.30 | 94,144 |
| Aug 11, 2026 | Girshick Birgit | Chief Executive Officer | Sell | 6,500 | 279.90 | 1,819,350 |
| Aug 11, 2026 | Girshick Birgit | Chief Executive Officer | Other | 6,500 | 179.66 | 1,167,790 |
| Aug 11, 2026 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Sell | 3,714 | 279.66 | 1,038,657 |
| Aug 11, 2026 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Other | 3,714 | 179.66 | 667,257 |
| Aug 10, 2026 | LaPlume Joseph W | EVP, Corp Strategy & Develop | Other | 257 | 0.00 | – |
| Aug 10, 2026 | Foster James C | Director | Sell | 28,733 | 275.00 | 7,901,575 |
| Aug 10, 2026 | Foster James C | Director | Other | 28,733 | 179.66 | 5,162,171 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 736 | 258.53 | 190,278 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 1,205 | 258.53 | 311,529 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 404 | 258.53 | 104,446 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Other | 736 | 208.44 | 153,412 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Other | 1,205 | 194.12 | 233,915 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Other | 404 | 179.66 | 72,583 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 482 | 265.17 | 127,812 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 620 | 263.94 | 163,643 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 213 | 262.37 | 55,885 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 810 | 261.45 | 211,775 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 901 | 260.63 | 234,828 |
| Aug 6, 2026 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 1,274 | 259.07 | 330,055 |
| Aug 6, 2026 | Creamer Victoria L | EVP & Chief People Officer | Sell | 4,179 | 259.16 | 1,083,030 |
| Aug 6, 2026 | Creamer Victoria L | EVP & Chief People Officer | Other | 4,179 | 179.66 | 750,799 |
| Aug 5, 2026 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Sell | 5,046 | 263.00 | 1,327,098 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.