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 ($45.1m this quarter). Holder counts are more reliable. Shares outstanding: 51.5m as of 2024-04-27, 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 ≈ $270.69. Options: 13 managers hold calls ($52.0m notional), 12 hold puts ($93.7m).
Trends to Q1 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 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $29.3m | $34.8m | 1.19 |
| Q3 2023 | $40.7m | $62.7m | 1.54 |
| Q4 2023 | $60.8m | $76.5m | 1.26 |
| Q1 2024 | $52.0m | $93.7m | 1.80 |
Biggest buyers
| MARSHALL WACE, LLP | New | +662.8k |
| MORGAN STANLEY | Added | +361.0k |
| AMERIPRISE FINANCIAL INC | Added | +259.2k |
| JPMORGAN CHASE & CO | Added | +253.9k |
| Epoch Investment Partners, Inc. | Added | +238.8k |
| Employees Retirement System of Texas | New | +174.0k |
| BANK OF AMERICA CORP /DE/ | Added | +153.1k |
| WOODLEY FARRA MANION PORTFOLIO MANAGEMENT INC | Added | +137.1k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Added | +124.4k |
| KEYSTONE INVESTORS PTE LTD | New | +123.6k |
Biggest sellers
| TPG GP A, LLC | Sold out | -427.7k |
| Point72 Asset Management, L.P. | Sold out | -369.0k |
| Southpoint Capital Advisors LP | Reduced | -300.0k |
| FIL Ltd | Reduced | -265.6k |
| MONTRUSCO BOLTON INVESTMENTS INC. | Reduced | -232.3k |
| FIRST TRUST ADVISORS LP | Reduced | -220.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -120.7k |
| Petrus Trust Company, LTA | Sold out | -120.0k |
| ARIEL INVESTMENTS, LLC | Reduced | -117.9k |
| FRANKLIN RESOURCES INC | Reduced | -111.2k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $11.8m43.6k shares |
| Twin Tree Management, LP | Reduced | $11.1m40.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $9.4m34.6k shares |
| NOMURA HOLDINGS INC | New | $8.1m30.0k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $4.4m16.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.5m9.3k shares |
| Squarepoint Ops LLC | Reduced | $1.4m5.2k shares |
| Walleye Trading LLC | Reduced | $948.3k3.5k shares |
| TWO SIGMA SECURITIES, LLC | Added | $921.2k3.4k shares |
| Walleye Capital LLC | Reduced | $785.8k2.9k shares |
Biggest puts
| MILLENNIUM MANAGEMENT LLC | Reduced | $22.9m84.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $21.0m77.6k shares |
| CITADEL ADVISORS LLC | Added | $19.0m70.1k shares |
| Walleye Trading LLC | Added | $8.9m32.9k shares |
| PEAK6 Investments LLC | Added | $7.5m27.5k shares |
| Walleye Capital LLC | Reduced | $6.1m22.4k shares |
| BANK OF AMERICA CORP /DE/ | New | $3.9m14.5k shares |
| WOLVERINE TRADING, LLC | Reduced | $2.1m7.9k shares |
| TWO SIGMA SECURITIES, LLC | Added | $894.1k3.3k shares |
| Squarepoint Ops LLC | New | $867.0k3.2k 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 Q1 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 |
|---|---|---|---|---|---|
| Q2 2022 | 0 | — | 1 | $41.1k | — |
| 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 |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-03-08 | Knell Michael Gunnar CSVP&Chief Accounting Officer | Sold | $216.2k808 shares |
| 2024-03-04 | Knell Michael Gunnar CSVP&Chief Accounting Officer | Sold | $717.9k2.8k shares |
| 2024-02-29 | Creamer Victoria L EVP & Chief People Officer | Sold | $1.3m5.0k shares |
| 2024-02-29 | Parisotto Shannon M CEVP, Disc & Safety Assessment | Sold | $934.1k3.7k shares |
| 2024-02-29 | Parisotto Shannon M CEVP, Disc & Safety Assessment | Sold | $25.4k100 shares |
| 2024-02-22 | Barbo William D Corporate Executive VP & CCO · By Trust | Sold | $1.0m4.0k shares |
| 2024-02-15 | Parisotto Shannon M CEVP, Disc & Safety Assessment | Sold plan | $1.4m5.9k shares |
| 2024-02-15 | LaPlume Joseph W EVP, Corp Strategy & Develop | Sold | $200.2k838 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, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 6.0m $1.6bn | Added +66.2k |
| BlackRock Inc. 0.03% of their portfolio | 5.2m $1.4bn | Added +10.4k |
| STATE STREET CORP 0.03% of their portfolio | 2.1m $567.4m | Added +34.3k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 1.18% of their portfolio | 1.9m $508.7m | Added +124.4k |
| Clearbridge Investments, LLC 0.33% of their portfolio | 1.5m $410.0m | Added +45.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.04% of their portfolio | 1.3m $358.3m | Reduced -120.7k |
| MORGAN STANLEY 0.01% of their portfolio | 1.3m $353.6m | Added +361.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.03% of their portfolio | 1.2m $320.5m | Added +39.8k |
| Meritage Group LP 7.54% of their portfolio | 1.2m $320.3m | Added +26.9k |
| Allspring Global Investments Holdings, LLC 0.47% of their portfolio | 1.1m $303.1m | Reduced -46.5k |
| ARIEL INVESTMENTS, LLC 2.49% of their portfolio | 932.8k $252.7m | Reduced -117.9k |
| MACKENZIE FINANCIAL CORP 0.37% of their portfolio | 931.8k $252.5m | Added +13.9k |
| EARNEST PARTNERS LLC 1.11% of their portfolio | 893.8k $242.2m | Added +4.4k |
| Invesco Ltd. 0.05% of their portfolio | 892.5k $241.8m | Reduced -55.8k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 889.2k $240.9m | Added +153.1k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 708.9k $192.1m | Added +253.9k |
| Southpoint Capital Advisors LP 3.75% of their portfolio | 700.0k $189.7m | Reduced -300.0k |
| MARSHALL WACE, LLP 0.30% of their portfolio | 662.8k $179.6m | New |
| FRANKLIN RESOURCES INC 0.06% of their portfolio | 651.8k $176.6m | Reduced -111.2k |
| SEI INVESTMENTS CO 0.23% of their portfolio | 575.3k $155.9m | Added +7.1k |
| WELLS FARGO & COMPANY/MN 0.04% of their portfolio | 569.4k $154.3m | Added +23.9k |
| Thrivent Financial for Lutherans 0.31% of their portfolio | 565.9k $153.3m | Added +123.1k |
| MONTRUSCO BOLTON INVESTMENTS INC. 1.41% of their portfolio | 489.8k $132.7m | Reduced -232.3k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 467.4k $126.6m | Reduced -14.6k |
| FMR LLC 0.01% of their portfolio | 464.8k $125.9m | Added +85.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.12% of their portfolio | 459.8k $124.6m | Reduced -7.8k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 459.3k $124.4m | Reduced -21.1k |
| NORGES BANK 0.02% of their portfolio | 456.1k $123.6m | Added +27.5k |
| CONGRESS ASSET MANAGEMENT CO 0.88% of their portfolio | 453.4k $122.8m | Reduced -11.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.03% of their portfolio | 448.8k $121.6m | Reduced -64.4k |
| FIL Ltd 0.11% of their portfolio | 397.0k $107.6m | Reduced -265.6k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 384.0k $104.1m | Reduced -12.6k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.26% of their portfolio | 364.6k $98.8m | Reduced -6.0k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.43% of their portfolio | 351.2k $95.2m | Reduced -15.6k |
| Van Berkom & Associates Inc. 2.40% of their portfolio | 311.5k $84.4m | Reduced -6.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.03% of their portfolio | 307.7k $83.4m | Added +39.1k |
| RIVERBRIDGE PARTNERS LLC 1.00% of their portfolio | 303.8k $82.3m | Added +3.1k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 282.7k $76.6m | Added +259.2k |
| PRIMECAP MANAGEMENT CO/CA/ 0.06% of their portfolio | 273.9k $74.2m | Unchanged |
| NEUBERGER BERMAN GROUP LLC 0.06% of their portfolio | 266.8k $72.3m | Added +9.2k |
| Empower Advisory Group, LLC 0.27% of their portfolio | 266.8k $72.3m | Added +10.6k |
| Legal & General Group Plc 0.02% of their portfolio | 255.2k $69.2m | Reduced -6.6k |
| Jackson Square Partners, LLC 2.83% of their portfolio | 251.3k $68.1m | Reduced -98.2k |
| RAYMOND JAMES & ASSOCIATES 0.05% of their portfolio | 248.3k $67.3m | Added +4.7k |
| Epoch Investment Partners, Inc. 0.30% of their portfolio | 247.5k $67.1m | Added +238.8k |
| WOODLEY FARRA MANION PORTFOLIO MANAGEMENT INC 3.63% of their portfolio | 243.2k $65.9m | Added +137.1k |
| Bellevue Group AG 0.95% of their portfolio | 229.7k $62.2m | Added +11.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 220.7k $59.8m | Added +742 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.15% of their portfolio | 204.0k $55.3m | Reduced -50.8k |
| LORD, ABBETT & CO. LLC 0.09% of their portfolio | 203.8k $55.2m | Reduced -244 |
| CITIGROUP INC 0.06% of their portfolio | 202.6k $54.9m | Added +20.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.05% of their portfolio | 200.7k $54.4m | Reduced -71 |
| Boston Trust Walden Corp 0.38% of their portfolio | 194.9k $52.8m | Reduced -2.4k |
| Fisher Asset Management, LLC 0.02% of their portfolio | 184.7k $50.0m | Reduced -1.8k |
| AMERICAN CAPITAL MANAGEMENT INC 1.59% of their portfolio | 183.3k $49.7m | Unchanged |
| Employees Retirement System of Texas 0.51% of their portfolio | 174.0k $47.1m | New |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 173.3k $47.0m | Reduced -10.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 172.7k $46.8m | Added +20.2k |
| Premier Fund Managers Ltd 1.71% of their portfolio | 160.0k $43.1m | Reduced -44.0k |
| HORIZON KINETICS ASSET MANAGEMENT LLC 0.82% of their portfolio | 159.2k $43.1m | Reduced -23.5k |
| Swiss National Bank 0.03% of their portfolio | 153.6k $41.6m | Reduced -6.7k |
| M.D. Sass, LLC 4.79% of their portfolio | 149.5k $40.5m | Reduced -31.7k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 149.2k $40.4m | Reduced -5.2k |
| CIBC Private Wealth Group LLC 0.08% of their portfolio | 148.6k $39.9m | Added +2.0k |
| Aristotle Capital Boston, LLC 1.22% of their portfolio | 148.6k $40.3m | Reduced -5.1k |
| ARGENT CAPITAL MANAGEMENT LLC 1.16% of their portfolio | 147.3k $39.9m | Added +85.3k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 146.5k $39.7m | Added +14.7k |
| MOUNTAIN PACIFIC INVESTMENT ADVISERS LLC 2.18% of their portfolio | 143.9k $39.0m | Added +1.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio | 138.2k $37.4m | Reduced -2.1k |
| SNYDER CAPITAL MANAGEMENT L P 0.80% of their portfolio | 138.1k $37.4m | Reduced -9.2k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 136.1k $36.9m | Added +83.2k |
| KBC Group NV 0.12% of their portfolio | 135.6k $36.7m | Reduced -80.0k |
| TimesSquare Capital Management, LLC 0.53% of their portfolio | 135.0k $36.6m | Added +103.2k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 134.6k $36.5m | Reduced -46.2k |
| TD Asset Management Inc 0.03% of their portfolio | 132.9k $36.0m | Added +98.4k |
| NORRIS PERNE & FRENCH LLP/MI 2.50% of their portfolio | 128.6k $34.9m | Reduced -3.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.05% of their portfolio | 126.3k $34.2m | Reduced -4.7k |
| PINEBRIDGE INVESTMENTS, L.P. 0.27% of their portfolio | 123.9k $33.6m | Added +23.5k |
| CI INVESTMENTS INC. 0.13% of their portfolio | 123.8k $33.5m | Reduced -2.5k |
| KEYSTONE INVESTORS PTE LTD 2.91% of their portfolio | 123.6k $33.5m | New |
| Mitsubishi UFJ Trust & Banking Corp 0.08% of their portfolio | 122.6k $33.2m | Reduced -10.0k |
| UBS Group AG 0.01% of their portfolio | 121.1k $32.8m | Added +26.3k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 118.1k $32.0m | Reduced -1.9k |
| Daventry Group, LP 12.53% of their portfolio | 115.7k $31.3m | Added +4.5k |
| BARCLAYS PLC 0.01% of their portfolio | 113.5k $30.7m | Reduced -55.7k |
| LAKEWOOD CAPITAL MANAGEMENT, LP 2.68% of their portfolio | 112.7k $30.5m | Reduced -5.0k |
| Aberdeen Group plc 0.06% of their portfolio | 112.0k $30.3m | Reduced -9.8k |
| Skandinaviska Enskilda Banken AB (publ) 0.15% of their portfolio | 111.2k $30.1m | Reduced -297 |
| STIFEL FINANCIAL CORP 0.03% of their portfolio | 109.5k $29.7m | Added +4.0k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.60% of their portfolio | 108.3k $29.4m | Added +9.5k |
| ANCHOR CAPITAL ADVISORS LLC 0.75% of their portfolio | 106.1k $28.7m | Reduced -5.8k |
| CONFLUENCE INVESTMENT MANAGEMENT LLC 0.35% of their portfolio | 97.0k $26.3m | Reduced -257 |
| FIRST TRUST ADVISORS LP 0.03% of their portfolio | 95.8k $26.0m | Reduced -220.0k |
| California Public Employees Retirement System 0.02% of their portfolio | 95.1k $25.8m | Reduced -883 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio | 87.2k $23.6m | Reduced -66.9k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 87.0k $23.6m | Reduced -81 |
| MBB PUBLIC MARKETS I LLC 1.40% of their portfolio | 80.6k $21.9m | Reduced -3.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 80.5k $21.8m | Reduced -80 |
| NATIXIS ADVISORS, LLC 0.05% of their portfolio | 78.8k $21.3m | Added +11.9k |
| HSBC HOLDINGS PLC 0.01% of their portfolio | 77.3k $20.9m | Added +21.2k |