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 ($20.4m this quarter). Holder counts are more reliable. Shares outstanding: 51.2m as of 2023-04-28, 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 ≈ $201.29. Options: 16 managers hold calls ($48.9m notional), 16 hold puts ($38.1m).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 584 |
| Q4 2022 | 629 |
| Q1 2023 | 623 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $33.9m | $13.3m | 0.39 |
| Q4 2022 | $19.4m | $43.0m | 2.21 |
| Q1 2023 | $48.9m | $38.1m | 0.78 |
Biggest buyers
| FMR LLC | Added | +920.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +653.8k |
| STRS OHIO | Added | +416.6k |
| Southpoint Capital Advisors LP | New | +400.0k |
| FRED ALGER MANAGEMENT, LLC | New | +237.5k |
| CI INVESTMENTS INC. | Added | +218.5k |
| Redmile Group, LLC | New | +115.3k |
| WORLD EQUITY GROUP, INC. | New | +111.4k |
| WOODLEY FARRA MANION PORTFOLIO MANAGEMENT INC | New | +104.8k |
| CIBC Private Wealth Group LLC | Added | +102.2k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -328.0k |
| AMERIPRISE FINANCIAL INC | Reduced | -296.3k |
| WELLINGTON MANAGEMENT GROUP LLP | Sold out | -210.7k |
| EAGLE ASSET MANAGEMENT INC | Sold out | -208.1k |
| BlackRock Inc. | Reduced | -171.3k |
| VIKING GLOBAL INVESTORS LP | Reduced | -121.1k |
| Invesco Ltd. | Reduced | -110.4k |
| KETTLE HILL CAPITAL MANAGEMENT, LLC | Sold out | -103.6k |
| SANDLER CAPITAL MANAGEMENT | Reduced | -94.2k |
| Swedbank AB | Sold out | -86.9k |
Biggest calls
| JANE STREET GROUP, LLC | New | $19.5m96.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $8.1m40.2k shares |
| Parallax Volatility Advisers, L.P. | New | $5.2m26.0k shares |
| CITADEL ADVISORS LLC | Added | $3.9m19.5k shares |
| SIMPLEX TRADING, LLC | Added | $3.2m15.8k shares |
| Walleye Trading LLC | Added | $2.1m10.4k shares |
| MILLENNIUM MANAGEMENT LLC | New | $2.0m10.0k shares |
| Walleye Capital LLC | New | $1.9m9.4k shares |
| Twin Tree Management, LP | New | $1.2m6.0k shares |
| PEAK6 Investments LLC | Added | $484.4k2.4k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $10.8m53.4k shares |
| Polar Asset Management Partners Inc. | New | $8.1m40.0k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $3.8m19.0k shares |
| JANE STREET GROUP, LLC | Added | $3.4m16.9k shares |
| SIMPLEX TRADING, LLC | Added | $3.2m16.0k shares |
| Walleye Trading LLC | Added | $1.8m8.7k shares |
| Walleye Capital LLC | New | $1.7m8.6k shares |
| CITADEL ADVISORS LLC | Reduced | $1.5m7.4k shares |
| GROUP ONE TRADING LLC | Reduced | $1.3m6.4k shares |
| Twin Tree Management, LP | New | $1.2m5.9k 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)
Insider purchases and sales in Q1 2023
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 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 0 | — | 4 | $22.4m | — |
| 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 | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-02-23 | WALLMAN RICHARD F Director | Bought | $386.3k1.8k shares |
| 2023-02-16 | Parisotto Shannon M CEVP, Disc & Safety Assessment | Sold | $1.2m4.6k shares |
| 2023-02-16 | Girshick Birgit Corporate Executive VP & COO | Sold | $815.3k3.2k shares |
| 2023-02-15 | FOSTER JAMES C Chairman, President and CEO, director | Sold | $5.0m20.0k 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 2023
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 6.0m $1.2bn | Added +58.8k |
| BlackRock Inc. 0.03% of their portfolio | 4.8m $966.1m | Reduced -171.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.08% of their portfolio | 2.5m $505.8m | Added +653.8k |
| STATE STREET CORP 0.02% of their portfolio | 2.1m $414.4m | Reduced -13.1k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.97% of their portfolio | 1.6m $328.6m | Added +11.6k |
| FMR LLC 0.01% of their portfolio | 1.5m $298.3m | Added +920.8k |
| Clearbridge Investments, LLC 0.27% of their portfolio | 1.4m $284.0m | Added +36.2k |
| Allspring Global Investments Holdings, LLC 0.39% of their portfolio | 1.2m $233.5m | Added +9.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.03% of their portfolio | 1.1m $213.9m | Added +25.0k |
| MARSHALL WACE, LLP 0.47% of their portfolio | 954.9k $192.7m | Added +80.1k |
| Jackson Square Partners, LLC 4.93% of their portfolio | 904.0k $182.4m | Added +42.8k |
| MACKENZIE FINANCIAL CORP 0.27% of their portfolio | 866.1k $174.8m | Added +65.5k |
| Invesco Ltd. 0.04% of their portfolio | 789.1k $159.2m | Reduced -110.4k |
| FIL Ltd 0.17% of their portfolio | 747.3k $150.8m | Reduced -11.0k |
| FRANKLIN RESOURCES INC 0.07% of their portfolio | 726.2k $146.6m | Added +31.0k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 701.5k $141.6m | Added +32.8k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.49% of their portfolio | 696.0k $140.5m | Reduced -14.0k |
| ARIEL INVESTMENTS, LLC 1.32% of their portfolio | 683.1k $137.9m | Added +45.3k |
| STRS OHIO 0.19% of their portfolio | 615.6k $124.2m | Added +416.6k |
| EARNEST PARTNERS LLC 0.67% of their portfolio | 570.4k $115.1m | Added +91.8k |
| WELLS FARGO & COMPANY/MN 0.03% of their portfolio | 510.6k $103.1m | Added +43.1k |
| SEI INVESTMENTS CO 0.19% of their portfolio | 501.2k $101.1m | Added +66.9k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 491.0k $99.1m | Reduced -5.3k |
| NORGES BANK 0.02% of their portfolio | 475.7k $96.0m | Added +27.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.03% of their portfolio | 474.0k $95.7m | Added +10.4k |
| CONGRESS ASSET MANAGEMENT CO 0.88% of their portfolio | 466.6k $94.2m | Added +14.2k |
| MORGAN STANLEY 0.01% of their portfolio | 454.4k $91.7m | Reduced -20.0k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 416.6k $84.1m | Reduced -6.9k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.44% of their portfolio | 412.6k $83.3m | Reduced -18.0k |
| MONTRUSCO BOLTON INVESTMENTS INC. 1.66% of their portfolio | 410.2k $80.4m | Reduced -33.7k |
| Southpoint Capital Advisors LP 1.83% of their portfolio | 400.0k $80.7m | New |
| VIKING GLOBAL INVESTORS LP 0.37% of their portfolio | 394.1k $79.5m | Reduced -121.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.08% of their portfolio | 372.9k $75.3m | Added +32.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.08% of their portfolio | 353.9k $71.4m | Added +7.1k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 353.4k $71.3m | Added +32.8k |
| FIRST TRUST ADVISORS LP 0.07% of their portfolio | 307.8k $62.1m | Added +11.6k |
| Legal & General Group Plc 0.02% of their portfolio | 306.7k $61.9m | Added +5.6k |
| Bellevue Group AG 0.89% of their portfolio | 302.4k $61.0m | Added +12.5k |
| RIVERBRIDGE PARTNERS LLC 0.85% of their portfolio | 299.0k $60.3m | Reduced -1.8k |
| TPG GP A, LLC 0.97% of their portfolio | 296.1k $59.8m | Reduced -6.2k |
| CI INVESTMENTS INC. 0.29% of their portfolio | 289.9k $58.5m | Added +218.5k |
| PRIMECAP MANAGEMENT CO/CA/ 0.05% of their portfolio | 274.0k $55.3m | Reduced -10.8k |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 260.5k $52.5m | Added +3.7k |
| LORD, ABBETT & CO. LLC 0.09% of their portfolio | 258.3k $52.1m | Reduced -2.2k |
| HORIZON KINETICS ASSET MANAGEMENT LLC 0.96% of their portfolio | 247.0k $49.8m | Reduced -13.1k |
| FRED ALGER MANAGEMENT, LLC 0.26% of their portfolio | 237.5k $47.9m | New |
| RAYMOND JAMES & ASSOCIATES 0.04% of their portfolio | 232.4k $46.9m | Added +8.7k |
| Premier Fund Managers Ltd 1.72% of their portfolio | 220.0k $43.6m | Unchanged |
| Nuveen Asset Management, LLC 0.02% of their portfolio | 216.7k $43.7m | Added +8.3k |
| Fisher Asset Management, LLC 0.03% of their portfolio | 216.2k $43.6m | Reduced -34.9k |
| CIBC Private Wealth Group LLC 0.05% of their portfolio | 205.7k $41.5m | Added +102.2k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 203.5k $41.1m | Added +91.8k |
| Swiss National Bank 0.03% of their portfolio | 201.8k $40.7m | Reduced -4.9k |
| Empower Advisory Group, LLC 0.18% of their portfolio | 201.4k $40.3m | First filing |
| Van Berkom & Associates Inc. 1.43% of their portfolio | 191.0k $38.5m | Added +11.0k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 183.6k $37.1m | Reduced -5.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 180.4k $36.4m | Added +43.8k |
| Amundi 0.02% of their portfolio | 176.4k $34.5m | Added +64.0k |
| AMERICAN CAPITAL MANAGEMENT INC 1.24% of their portfolio | 175.0k $35.3m | Added +6.0k |
| Boston Trust Walden Corp 0.30% of their portfolio | 174.3k $35.2m | Added +33.7k |
| ARGENT CAPITAL MANAGEMENT LLC 1.20% of their portfolio | 172.2k $34.7m | Added +1.9k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 168.5k $34.0m | Reduced -2.5k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.12% of their portfolio | 167.7k $33.8m | Reduced -28.4k |
| BROWN ADVISORY INC 0.06% of their portfolio | 167.0k $33.7m | Added +1.5k |
| ENVESTNET ASSET MANAGEMENT INC 0.02% of their portfolio | 166.2k $33.5m | Added +5.8k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.02% of their portfolio | 165.4k $33.4m | Reduced -71.2k |
| SNYDER CAPITAL MANAGEMENT L P 0.70% of their portfolio | 162.3k $32.8m | Added +12.1k |
| Mitsubishi UFJ Trust & Banking Corp 0.08% of their portfolio | 159.0k $32.1m | Added +512 |
| Aristotle Capital Boston, LLC 0.98% of their portfolio | 156.7k $31.6m | Added +2.9k |
| Soleus Capital Management, L.P. 3.90% of their portfolio | 156.1k $31.5m | Added +54.2k |
| J.P. Morgan Private Wealth Advisors LLC 0.07% of their portfolio | 152.9k $30.9m | Added +31.7k |
| M.D. Sass, LLC 4.74% of their portfolio | 150.2k $30.3m | Added +20.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 147.4k $29.8m | Added +83.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 145.5k $29.4m | Added +16.9k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 141.1k $28.5m | Reduced -1.1k |
| Iron Triangle Partners LP 3.78% of their portfolio | 130.0k $26.2m | Reduced -70.0k |
| FEDERATED HERMES, INC. 0.06% of their portfolio | 126.8k $25.6m | Reduced -23.2k |
| Tekla Capital Management LLC 0.91% of their portfolio | 118.1k $23.8m | Added +45.4k |
| Redmile Group, LLC 1.01% of their portfolio | 115.3k $23.3m | New |
| JANUS HENDERSON GROUP PLC 0.02% of their portfolio | 114.1k $23.0m | Added +45.4k |
| Skandinaviska Enskilda Banken AB (publ) 0.16% of their portfolio | 114.0k $23.0m | Reduced -793 |
| WORLD EQUITY GROUP, INC. 0.15% of their portfolio | 111.4k $1.0m | New |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 109.8k $22.2m | Reduced -328.0k |
| MOUNTAIN PACIFIC INVESTMENT ADVISERS LLC 1.57% of their portfolio | 109.6k $22.1m | Added +2.5k |
| UBS Group AG 0.01% of their portfolio | 108.5k $21.9m | Added +24.1k |
| WOODLEY FARRA MANION PORTFOLIO MANAGEMENT INC 1.44% of their portfolio | 104.8k $21.2m | New |
| NORRIS PERNE & FRENCH LLP/MI 1.88% of their portfolio | 101.5k $20.5m | Added +927 |
| California Public Employees Retirement System 0.02% of their portfolio | 98.8k $19.9m | Reduced -13.2k |
| STIFEL FINANCIAL CORP 0.03% of their portfolio | 97.6k $19.7m | Added +2.8k |
| REINHART PARTNERS, LLC. 1.02% of their portfolio | 93.5k $18.9m | Added +25.0k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 92.9k $18.7m | Added +6.8k |
| NATIONAL BANK OF CANADA /FI/ 0.05% of their portfolio | 88.7k $17.8m | Reduced -13.7k |
| LAKEWOOD CAPITAL MANAGEMENT, LP 1.45% of their portfolio | 87.7k $17.7m | Unchanged |
| BAILLIE GIFFORD & CO 0.02% of their portfolio | 85.5k $17.3m | Added +14.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 84.6k $17.1m | Reduced -790 |
| INVESTMENT HOUSE LLC 1.32% of their portfolio | 79.4k $16.0m | Reduced -1.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 79.3k $16.0m | Added +16.8k |
| PINEBRIDGE INVESTMENTS, L.P. 0.17% of their portfolio | 76.7k $15.5m | Added +6.7k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 71.1k $14.2m | Added +14.5k |
| Laurus Global Equity Management Inc. 6.88% of their portfolio | 70.6k $19.3m | Added +555 |