CHARLES RIV LABS INTL INC CRL
COM · Common Stock · CUSIP 159864107 · ISIN US1598641074
Major US biomedical company
- SectorHealth care
- IndustryServices-Commercial Physical & Biological Research
- HeadquartersWilmington, MA
- Founded1947
- Websitecriver.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($37.6m this quarter). Holder counts are more reliable. Shares outstanding: 51.6m as of 2024-07-27, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $206.66. Options: 14 managers hold calls ($54.2m notional), 12 hold puts ($48.8m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 584 |
| Q4 2022 | 629 |
| Q1 2023 | 623 |
| Q2 2023 | 613 |
| Q3 2023 | 623 |
| Q4 2023 | 634 |
| Q1 2024 | 675 |
| Q2 2024 | 666 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 312 | 271 |
| Q1 2023 | 315 | 281 |
| Q2 2023 | 309 | 278 |
| Q3 2023 | 303 | 281 |
| Q4 2023 | 265 | 328 |
| Q1 2024 | 341 | 274 |
| Q2 2024 | 330 | 316 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $40.7m | $62.7m | 1.54 |
| Q4 2023 | $60.8m | $76.5m | 1.26 |
| Q1 2024 | $52.0m | $93.7m | 1.80 |
| Q2 2024 | $54.2m | $48.8m | 0.90 |
Biggest buyers
| Southpoint Capital Advisors LP | Added | +450.0k |
| MARSHALL WACE, LLP | Added | +163.1k |
| 1832 Asset Management L.P. | New | +160.0k |
| M.D. Sass, LLC | Added | +159.5k |
| Allspring Global Investments Holdings, LLC | Added | +132.8k |
| EARNEST PARTNERS LLC | Added | +110.7k |
| Invesco Ltd. | Added | +103.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Added | +101.7k |
| Bank of New York Mellon Corp | Added | +96.3k |
| DIMENSIONAL FUND ADVISORS LP | Added | +93.7k |
Biggest sellers
| MORGAN STANLEY | Reduced | -823.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -681.5k |
| MONTRUSCO BOLTON INVESTMENTS INC. | Sold out | -489.8k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Sold out | -364.6k |
| Thrivent Financial for Lutherans | Reduced | -191.2k |
| Clearbridge Investments, LLC | Reduced | -144.6k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -124.7k |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | -114.3k |
| BlackRock Inc. | Reduced | -83.8k |
| FIL Ltd | Reduced | -75.1k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $17.1m83.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $7.7m37.4k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $6.4m31.2k shares |
| SIMPLEX TRADING, LLC | Added | $6.1m29.4k shares |
| NOMURA HOLDINGS INC | Reduced | $5.9m28.6k shares |
| Twin Tree Management, LP | Reduced | $5.0m24.4k shares |
| PEAK6 Investments LLC | New | $2.4m11.8k shares |
| WOLVERINE TRADING, LLC | Added | $1.4m6.7k shares |
| Squarepoint Ops LLC | Reduced | $1.1m5.1k shares |
| TWO SIGMA SECURITIES, LLC | Reduced | $392.5k1.9k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $16.1m77.8k shares |
| CITADEL ADVISORS LLC | Reduced | $11.3m54.9k shares |
| 683 Capital Management, LLC | New | $5.2m25.0k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $4.3m21.0k shares |
| BANK OF AMERICA CORP /DE/ | Unchanged | $3.0m14.5k shares |
| PEAK6 Investments LLC | Reduced | $2.7m13.1k shares |
| NOMURA HOLDINGS INC | New | $2.6m12.5k shares |
| WOLVERINE TRADING, LLC | Added | $2.4m11.6k shares |
| Walleye Trading LLC | Reduced | $578.4k2.8k shares |
| Parallax Volatility Advisers, L.P. | Unchanged | $268.6k1.3k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution +1.4 pts · filed 2026-09-08 | 10.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.4% |
| BlackRock, Inc. 13G · institution filed 2025-04-17 | 6.9% |
| Invesco Ltd. 13G · institution +1.3 pts · filed 2026-08-13 | 6.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), WELLINGTON MANAGEMENT GROUP LLP (3.6%, 2026-02-10), NOMURA HOLDINGS INC (1.6%, 2025-11-14)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 1 | $45.2k | — |
| Q4 2022 | 1 | $328.4k | 4 | $3.0m | — |
| Q1 2023 | 1 | $386.3k | 3 | $7.0m | — |
| Q2 2023 | 0 | — | 2 | $306.5k | $55.7k |
| Q3 2023 | 1 | $198.8k | 3 | $1.7m | — |
| Q4 2023 | 2 | $1.2m | 2 | $3.2m | $1.2m |
| Q1 2024 | 0 | — | 5 | $5.8m | $1.4m |
| Q2 2024 | 0 | — | 2 | $374.2k | $78.2k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-15 | MASSARO GEORGE Director | Sold plan | $78.2k332 shares |
| 2024-05-10 | LaPlume Joseph W EVP, Corp Strategy & Develop | Sold | $296.0k1.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.02% of their portfolio | 6.1m $1.3bn | Added +57.0k |
| BlackRock Inc. 0.02% of their portfolio | 5.1m $1.1bn | Reduced -83.8k |
| STATE STREET CORP 0.02% of their portfolio | 2.1m $431.5m | Reduced -5.3k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.96% of their portfolio | 1.9m $394.4m | Added +31.4k |
| Clearbridge Investments, LLC 0.23% of their portfolio | 1.4m $282.7m | Reduced -144.6k |
| Allspring Global Investments Holdings, LLC 0.42% of their portfolio | 1.3m $258.6m | Added +132.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 1.2m $250.7m | Added +30.9k |
| Meritage Group LP 6.21% of their portfolio | 1.2m $244.3m | Added +389 |
| Southpoint Capital Advisors LP 5.91% of their portfolio | 1.1m $237.6m | Added +450.0k |
| EARNEST PARTNERS LLC 0.97% of their portfolio | 1.0m $207.5m | Added +110.7k |
| Invesco Ltd. 0.04% of their portfolio | 995.9k $205.7m | Added +103.4k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 974.7k $201.4m | Added +85.6k |
| MACKENZIE FINANCIAL CORP 0.29% of their portfolio | 929.2k $191.9m | Reduced -2.6k |
| ARIEL INVESTMENTS, LLC 2.03% of their portfolio | 906.1k $187.2m | Reduced -26.7k |
| MARSHALL WACE, LLP 0.24% of their portfolio | 825.9k $170.6m | Added +163.1k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 794.0k $164.0m | Added +85.1k |
| FRANKLIN RESOURCES INC 0.04% of their portfolio | 665.1k $137.4m | Added +13.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 641.0k $132.4m | Reduced -681.5k |
| SEI INVESTMENTS CO 0.18% of their portfolio | 624.8k $129.1m | Added +49.5k |
| WELLS FARGO & COMPANY/MN 0.03% of their portfolio | 561.1k $115.9m | Reduced -8.3k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 561.1k $115.9m | Added +93.7k |
| NORGES BANK 0.02% of their portfolio | 514.2k $106.2m | Added +58.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 482.9k $99.8m | Added +34.1k |
| MORGAN STANLEY 0.01% of their portfolio | 481.8k $99.5m | Reduced -823.4k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 480.3k $99.2m | Added +96.3k |
| VICTORY CAPITAL MANAGEMENT INC 0.10% of their portfolio | 465.7k $96.2m | Added +5.9k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 457.9k $94.6m | Reduced -1.4k |
| FMR LLC 0.01% of their portfolio | 457.7k $94.6m | Reduced -7.0k |
| CONGRESS ASSET MANAGEMENT CO 0.66% of their portfolio | 443.1k $91.5m | Reduced -10.3k |
| Thrivent Financial for Lutherans 0.16% of their portfolio | 374.7k $77.4m | Reduced -191.2k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 361.8k $74.8m | Added +79.1k |
| FIL Ltd 0.07% of their portfolio | 321.9k $66.5m | Reduced -75.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.02% of their portfolio | 319.2k $65.9m | Added +11.5k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.30% of their portfolio | 318.3k $65.8m | Reduced -32.9k |
| Van Berkom & Associates Inc. 1.96% of their portfolio | 318.2k $65.7m | Added +6.8k |
| M.D. Sass, LLC 5.19% of their portfolio | 308.9k $63.8m | Added +159.5k |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 307.5k $63.5m | Added +40.6k |
| RIVERBRIDGE PARTNERS LLC 0.81% of their portfolio | 289.3k $59.8m | Reduced -14.5k |
| PRIMECAP MANAGEMENT CO/CA/ 0.04% of their portfolio | 273.7k $56.5m | Reduced -200 |
| Empower Advisory Group, LLC 0.21% of their portfolio | 272.6k $56.3m | Added +5.8k |
| Epoch Investment Partners, Inc. 0.26% of their portfolio | 271.1k $56.0m | Added +23.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 265.3k $54.8m | Added +44.6k |
| RAYMOND JAMES & ASSOCIATES 0.03% of their portfolio | 248.1k $51.3m | Reduced -236 |
| Legal & General Group Plc 0.01% of their portfolio | 243.6k $50.3m | Reduced -11.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.05% of their portfolio | 239.9k $49.6m | Added +101.7k |
| WOODLEY FARRA MANION PORTFOLIO MANAGEMENT INC 2.69% of their portfolio | 239.8k $49.5m | Reduced -3.4k |
| Bellevue Group AG 0.78% of their portfolio | 232.7k $48.1m | Added +3.0k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 218.4k $45.1m | Added +69.1k |
| CITIGROUP INC 0.04% of their portfolio | 213.4k $44.1m | Added +10.7k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.11% of their portfolio | 206.0k $42.6m | Added +2.0k |
| LORD, ABBETT & CO. LLC 0.07% of their portfolio | 205.5k $42.5m | Added +1.7k |
| Boston Trust Walden Corp 0.31% of their portfolio | 200.3k $41.4m | Added +5.4k |
| VOYA INVESTMENT MANAGEMENT LLC 0.04% of their portfolio | 195.6k $40.4m | Reduced -5.1k |
| AMERICAN CAPITAL MANAGEMENT INC 1.27% of their portfolio | 183.3k $37.9m | Unchanged |
| Fisher Asset Management, LLC 0.02% of their portfolio | 183.1k $37.8m | Reduced -1.5k |
| Jackson Square Partners, LLC 2.25% of their portfolio | 178.2k $36.8m | Reduced -73.1k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 175.6k $36.3m | Added +2.3k |
| Employees Retirement System of Texas 0.34% of their portfolio | 174.0k $35.9m | Unchanged |
| BARCLAYS PLC 0.02% of their portfolio | 165.2k $34.1m | Added +51.7k |
| HORIZON KINETICS ASSET MANAGEMENT LLC 0.58% of their portfolio | 160.4k $33.1m | Added +1.2k |
| 1832 Asset Management L.P. 0.06% of their portfolio | 160.0k $33.1m | New |
| Premier Fund Managers Ltd 1.33% of their portfolio | 160.0k $33.2m | Unchanged |
| CIBC Private Wealth Group LLC 0.06% of their portfolio | 153.1k $31.0m | Added +4.4k |
| Swiss National Bank 0.02% of their portfolio | 152.1k $31.4m | Reduced -1.5k |
| Aristotle Capital Boston, LLC 1.05% of their portfolio | 150.7k $31.1m | Added +2.1k |
| UBS Group AG 0.01% of their portfolio | 146.4k $30.3m | Added +25.3k |
| ARGENT CAPITAL MANAGEMENT LLC 0.88% of their portfolio | 145.4k $30.0m | Reduced -1.9k |
| MOUNTAIN PACIFIC INVESTMENT ADVISERS LLC 2.19% of their portfolio | 142.1k $29.4m | Reduced -1.8k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 139.2k $28.8m | Reduced -7.3k |
| SNYDER CAPITAL MANAGEMENT L P 0.63% of their portfolio | 135.6k $28.0m | Reduced -2.5k |
| KBC Group NV 0.08% of their portfolio | 134.9k $27.9m | Reduced -741 |
| NORRIS PERNE & FRENCH LLP/MI 1.95% of their portfolio | 130.5k $27.0m | Added +1.9k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 130.0k $26.9m | Reduced -4.6k |
| TimesSquare Capital Management, LLC 0.42% of their portfolio | 129.2k $26.7m | Reduced -5.8k |
| PINEBRIDGE INVESTMENTS, L.P. 0.21% of their portfolio | 128.4k $26.5m | Added +4.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 127.8k $26.4m | Added +60.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.03% of their portfolio | 126.3k $26.1m | Reduced -48 |
| Aberdeen Group plc 0.05% of their portfolio | 125.0k $25.8m | Added +13.0k |
| Daventry Group, LP 11.04% of their portfolio | 119.7k $24.7m | Added +4.0k |
| ARMISTICE CAPITAL, LLC 0.64% of their portfolio | 119.1k $24.6m | Added +49.2k |
| CI INVESTMENTS INC. 0.10% of their portfolio | 117.6k $24.3m | Reduced -6.2k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 112.7k $23.3m | Added +38.6k |
| LAKEWOOD CAPITAL MANAGEMENT, LP 1.99% of their portfolio | 111.7k $23.1m | Reduced -1.0k |
| STIFEL FINANCIAL CORP 0.03% of their portfolio | 110.9k $22.9m | Added +1.4k |
| TD Asset Management Inc 0.02% of their portfolio | 110.4k $22.8m | Reduced -22.5k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 108.3k $22.4m | Reduced -9.8k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.47% of their portfolio | 107.5k $22.2m | Reduced -850 |
| KEYSTONE INVESTORS PTE LTD 1.85% of their portfolio | 106.3k $22.0m | Reduced -17.3k |
| Mitsubishi UFJ Trust & Banking Corp 0.05% of their portfolio | 105.2k $21.7m | Reduced -17.4k |
| ANCHOR CAPITAL ADVISORS LLC 0.59% of their portfolio | 101.5k $21.0m | Reduced -4.6k |
| HSBC HOLDINGS PLC 0.01% of their portfolio | 98.5k $20.4m | Added +21.2k |
| California Public Employees Retirement System 0.01% of their portfolio | 96.7k $20.0m | Added +1.5k |
| DF DENT & CO INC 0.26% of their portfolio | 96.3k $19.9m | Added +28.9k |
| CONFLUENCE INVESTMENT MANAGEMENT LLC 0.28% of their portfolio | 95.3k $19.7m | Reduced -1.7k |
| NATIXIS ADVISORS, LLC 0.04% of their portfolio | 88.5k $18.3m | Added +9.7k |
| MBB PUBLIC MARKETS I LLC 0.38% of their portfolio | 88.4k $18.3m | Added +7.7k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 88.3k $18.2m | Added +1.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 78.8k $16.3m | Reduced -1.7k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.15% of their portfolio | 74.4k $15.4m | Added +6.3k |
| Grandeur Peak Global Advisors, LLC 1.23% of their portfolio | 74.3k $15.3m | Added +11.2k |