Charles River Laboratories
Provider of research models, nonclinical drug-development services, and manufacturing quality-control testing.
$291.50
After-hours close+0.11 (+0.04%)
At close$291.40(−1.69%)
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Breakdown13F · Form 4
Institutions 145.63%Insiders 0.64%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 48.17M · Float 47.62M · 98.9% free float
Institutions13F, as of Jun 30, 2026
581 holders · 70.15M shares · 80 new positions · 275 increased · 200 reduced · 70 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 4.24M | 8.80% | +783.5K | Aug 13, 2026 |
| BlackRock, Inc. | 3.80M | 7.89% | −60.5K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 3.15M | 6.54% | −52.9K | Aug 13, 2026 |
| Invesco Ltd. | 2.98M | 6.20% | +587.5K | Aug 14, 2026 |
| Harris Associates L P | 2.24M | 4.65% | +87.8K | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 2.21M | 4.59% | −83.7K | Aug 13, 2026 |
| Allspring Global Investments Holdings, LLC | 1.91M | 3.96% | −88.1K | Aug 13, 2026 |
| State Street Corp | 1.86M | 3.87% | −9.3K | Aug 7, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Vanguard Capital Management | 7.38% | 3.63M | 13G | Apr 29, 2026 ↗ |
| Wellington Investment Advisors Holdings LLPincl. Wellington Management Company LLP, Wellington Management Group LLP +1 more | 7.25% | 3.74M | 13G | Nov 8, 2024 ↗ |
| FMR LLC | 7.00% | 3.46M | 13G | May 6, 2026 ↗ |
| BlackRock, Inc. | 6.90% | 3.52M | 13G | Apr 17, 2025 ↗ |
| Invesco Ltd. | 6.20% | 2.98M | 13G | Aug 13, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Birgit Girshick | director, officer: Chief Executive Officer | 79.3K | 0.16% | Aug 20, 2026 |
| James C. Foster | director | 31.6K | 0.07% | Aug 27, 2026 |
| Joseph W. LaPlume | officer: EVP, Corp Strategy & Develop | 31.0K | 0.06% | Aug 11, 2026 |
| Victoria L. Creamer | officer: EVP & Chief People Officer | 30.1K | 0.06% | Aug 10, 2026 |
| Glenn Coleman | officer: EVP & Chief Financial Officer | 27.8K | 0.06% | Jun 2, 2026 |
| Flavia Pease | officer: Corporate Executive VP & CFO | 17.3K | 0.04% | Jun 3, 2025 |
| Martin Mackay | director | 15.7K | 0.03% | May 11, 2026 |
| Shannon M. Parisotto | officer: CEVP, Disc & Safety Assessment | 14.5K | 0.03% | Aug 20, 2026 |
| Michael Gunnar Knell | officer: SVP, Finance and CAO | 11.9K | 0.02% | Aug 10, 2026 |
| Mark Mintz | officer: EVP, Chief Information Officer | 9.5K | 0.02% | Jun 2, 2026 |
1 ten-percent owner holds 111.3K shares by Form 4, outside the officers-and-directors figure above · 28 people have not refiled in the last 18 months (1.19M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 25, 2026 | James C. Fosterdirector | Sale | 33,561 | $300.00 | 31,596 |
| Aug 19, 2026 | Shannon M. Parisottoofficer: CEVP, Disc & Safety Assessment | Sale | 2,039 | $294.12 | 4,807 |
| Aug 18, 2026 | Nancy C. Andrewsdirector | Sale | 573 | $285.24 | 1,438 |
| Aug 11, 2026 | Shannon M. Parisottoofficer: CEVP, Disc & Safety Assessment | Sale | 3,714 | $279.66 | 4,807 |
| Aug 11, 2026 | Birgit Girshickdirector, officer: Chief Executive Officer | Sale | 6,500 | $279.90 | 36,013 |
| Aug 10, 2026 | James C. Fosterdirector | Sale | 28,733 | $275.00 | 31,596 |
| Aug 6, 2026 | Michael Gunnar Knellofficer: SVP, Finance and CAO | Sale · 9 lots | 6,645 | $260.38 | 11,852 |
| Aug 6, 2026 | Victoria L. Creamerofficer: EVP & Chief People Officer | Sale | 4,179 | $259.16 | 30,051 |
| Aug 5, 2026 | Shannon M. Parisottoofficer: CEVP, Disc & Safety Assessment | Sale | 5,046 | $263.00 | 4,807 |
| Jun 29, 2026 | James C. Fosterdirector | Sale | 75,000 | $225.00 | 31,596 |
CongressHouse and Senate disclosures
Not reported.