Charles River Laboratories International, Inc.
US ˙ NYSE ˙ US1598641074

SecurityCRL / Charles River Laboratories International, Inc.
InstitutionEarnest Partners Llc
Latest Disclosed Ownership971,366 shares
Latest Disclosed Value $ 167,560,635
Earnest Partners Llc reports 1.71% decrease in ownership of CRL / Charles River Laboratories International, Inc.

On May 15, 2026 - Earnest Partners Llc filed a 13F-HR form disclosing ownership of 971,366 shares of Charles River Laboratories International, Inc. (US:CRL) valued at $167,560,635 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 988,259 shares of Charles River Laboratories International, Inc.. This represents a change in shares of -1.71% during the quarter. The current value of the position is $176,147,510 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CHARLES RIV LABS INTL COM 159864107 971,366 -16,893 -1.71 167,561 -15.00 0.6909
2026-02-12 2025-12-31 13F CHARLES RIV LABS INTL COM 159864107 988,259 -18,465 -1.83 197,138 25.16 0.8448
2025-11-14 2025-09-30 13F CHARLES RIV LABS INTL COM 159864107 1,006,724 8,467 0.85 157,512 3.99 0.6833
2025-08-15 2025-06-30 13F CHARLES RIV LABS INTL COM 159864107 998,257 -6,350 -0.63 151,466 0.17 0.6828
2025-05-14 2025-03-31 13F CHARLES RIV LABS INTL COM 159864107 1,004,607 22,453 2.29 151,213 -16.60 0.7240
2025-02-14 2024-12-31 13F CHARLES RIV LABS INTL COM 159864107 982,154 735 0.07 181,306 -6.21 0.8103
2024-11-14 2024-09-30 13F CHARLES RIV LABS INTL COM 159864107 981,419 -23,067 -2.30 193,310 -6.84 0.8417
2024-08-14 2024-06-30 13F CHARLES RIV LABS INTL COM 159864107 1,004,486 110,725 12.39 207,507 -14.31 0.9701
2024-05-15 2024-03-31 13F CHARLES RIV LABS INTL COM 159864107 893,761 4,393 0.49 242,165 15.18 1.1087
2024-02-14 2023-12-31 13F CHARLES RIV LABS INTL COM 159864107 889,368 83,485 10.36 210,247 33.12 1.0498
2023-11-14 2023-09-30 13F CHARLES RIV LABS INTL COM 159864107 805,883 41,689 5.46 157,937 -1.70 0.9109
2023-08-07 2023-06-30 13F CHARLES RIVER LA COM 159864107 764,194 193,802 33.98 160,672 39.57 0.8981
2023-05-15 2023-03-31 13F CHARLES RIVER LA COM 159864107 570,392 91,806 19.18 115,117 10.39 0.6658
2023-02-14 2022-12-31 13F CHARLES RIVER LA COM 159864107 478,586 15,286 3.30 104,284 14.37 0.6392
2022-11-14 2022-09-30 13F CHARLES RIVER LA COM 159864107 463,300 288,052 164.37 91,177 143.15 0.6124
2022-08-12 2022-06-30 13F CHARLES RIVER LA COM 159864107 175,248 -1,962 -1.11 37,498 -25.48 0.2498
2022-05-16 2022-03-31 13F CHARLES RIVER LA COM 159864107 177,210 -603 -0.34 50,322 -24.89 0.2980
2022-02-07 2021-12-31 13F CHARLES RIVER LA COM 159864107 177,813 -9,097 -4.87 66,996 -13.14 0.3864
2021-11-15 2021-09-30 13F CHARLES RIVER LA COM 159864107 186,910 -23,660 -11.24 77,132 -0.98 0.4714
2021-08-16 2021-06-30 13F CHARLES RIVER LA COM 159864107 210,570 -9,481 -4.31 77,894 22.13 0.4577
2021-05-17 2021-03-31 13F CHARLES RIVER LABORATORIES COM 159864107 220,051 -46,058 -17.31 63,777 -4.08 0.3810
2021-02-16 2020-12-31 13F CHARLES RIVER LABORATORIES COM 159864107 266,109 -11,306 -4.08 66,490 5.84 0.4593
2020-11-16 2020-09-30 13F CHARLES RIVER LABORATORIES COM 159864107 277,415 -50,840 -15.49 62,821 9.77 0.5419
2020-08-13 2020-06-30 13F CHARLES RIVER LABORATORIES COM 159864107 328,255 508 0.15 57,231 38.36 0.5407
2020-05-14 2020-03-31 13F CHARLES RIVER LABORATORIES COM 159864107 327,747 54,577 19.98 41,365 -0.87 0.4661
2020-02-07 2019-12-31 13F CHARLES RIVER LABORATORIES COM 159864107 273,170 32,138 13.33 41,729 30.79 0.3280
2019-11-14 2019-09-30 13F CHARLES RIVER LABORATORIES COM 159864107 241,032 304 0.13 31,905 -6.60 0.2883
2019-08-13 2019-06-30 13F CHARLES RIVER LABORATORIES COM 159864107 240,728 -114 -0.05 34,159 -2.35 0.3086
2019-05-15 2019-03-31 13F CHARLES RIVER LABORATORIES COM 159864107 240,842 667 0.28 34,982 28.69 0.3342
2019-02-14 2018-12-31 13F CHARLES RIVER LA COM 159864107 240,175 -1,273 -0.53 27,183 -16.32 0.2960
2018-11-14 2018-09-30 13F CHARLES RIVER LA COM 159864107 241,448 -5,489 -2.22 32,484 17.18 0.2910
2018-08-13 2018-06-30 13F CHARLES RIVER LA COM 159864107 246,937 -3,752 -1.50 27,721 3.60 0.2593
2018-05-15 2018-03-31 13F CHARLES RIVER LA COM 159864107 250,689 8,114 3.34 26,759 0.79 0.2531
2018-02-14 2017-12-31 13F CHARLES RIVER LA COM 159864107 242,575 -19,687 -7.51 26,550 -6.28 0.2542
2017-11-14 2017-09-30 13F CHARLES RIVER LA COM 159864107 262,262 20,683 8.56 28,330 15.94 0.2822
2017-08-14 2017-06-30 13F CHARLES RIVER LA COM 159864107 241,579 19,555 8.81 24,436 22.36 0.2567
2017-05-15 2017-03-31 13F CHARLES RIVER LA COM 159864107 222,024 222,020 5,550,500.00 19,971 0.2130
2017-02-14 2016-12-31 13F CHARLES RIVER LA COM 159864107 4 4 0 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.