Charles River Laboratories International, Inc.
MX ˙ BMV ˙ US1598641074
SecurityMX:CRL / Charles River Laboratories International, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership756,758 shares
Latest Disclosed Value $ 150,961,985
Sei Investments Co reports 0.94% increase in ownership of CRL / Charles River Laboratories International, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 756,758 shares of Charles River Laboratories International, Inc. (MX:CRL) valued at $150,961,985 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 749,723 shares of Charles River Laboratories International, Inc.. This represents a change in shares of 0.94% during the quarter.

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)
2026-02-13 2025-12-31 13F CHARLES RIV LABS INTL COM 159864107 756,758 7,035 0.94 150,962 28.69 0.1490
2025-11-13 2025-09-30 13F CHARLES RIV LABS INTL COM 159864107 749,723 35,035 4.90 117,303 8.17 0.1261
2025-08-14 2025-06-30 13F CHARLES RIV LABS INTL COM 159864107 714,688 46,510 6.96 108,440 7.82 0.1257
2025-05-14 2025-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 668,178 -5,690 -0.84 100,572 -19.15 0.1294
2025-05-13 2025-03-31 13F CHARLES RIV LABS INTL COM 159864107 674,729 861 124,170 0.1350
2025-02-11 2024-12-31 13F CHARLES RIV LABS INTL COM 159864107 673,868 38,827 6.11 124,394 -0.55 0.1597
2024-11-12 2024-09-30 13F CHARLES RIV LABS INTL COM 159864107 635,041 10,241 1.64 125,084 -3.09 0.1624
2024-08-13 2024-06-30 13F CHARLES RIV LABS INTL COM 159864107 624,800 49,451 8.59 129,072 -17.20 0.1829
2024-05-07 2024-03-31 13F CHARLES RIV LABS INTL COM 159864107 575,349 7,142 1.26 155,889 16.05 0.2284
2024-02-14 2023-12-31 13F CHARLES RIV LABS INTL COM 159864107 568,207 110,494 24.14 134,325 49.74 0.2156
2023-11-14 2023-09-30 13F CHARLES RIV LABS INTL COM 159864107 457,713 -49,412 -9.74 89,702 -15.87 0.1612
2023-08-11 2023-06-30 13F CHARLES RIV LABS INTL COM 159864107 507,125 5,947 1.19 106,622 5.41 0.1860
2023-05-12 2023-03-31 13F CHARLES RIV LABS INTL COM 159864107 501,178 66,897 15.40 101,148 6.89 0.1879
2023-02-10 2022-12-31 13F CHARLES RIV LABS INTL COM 159864107 434,281 1,482 0.34 94,630 11.10 0.2103
2022-11-14 2022-09-30 13F CHARLES RIV LABS INTL COM 159864107 432,799 242,528 127.46 85,174 109.28 0.1900
2022-08-15 2022-06-30 13F CHARLES RIV LABS INTL COM 159864107 190,271 95,402 100.56 40,699 50.97 0.0879
2022-05-13 2022-03-31 13F CHARLES RIV LABS INTL COM 159864107 94,869 1,104 1.18 26,958 -23.81 0.0542
2022-02-14 2021-12-31 13F CHARLES RIV LABS INTL COM 159864107 93,765 -2,874 -2.97 35,381 -11.19 0.0664
2021-11-12 2021-09-30 13F CHARLES RIV LABS INTL COM 159864107 96,639 -26,975 -21.82 39,841 -12.82 0.0836
2021-08-06 2021-06-30 13F CHARLES RIV LABS INTL COM 159864107 123,614 -13,771 -10.02 45,699 15.29 0.1013
2021-05-12 2021-03-31 13F CHARLES RIV LABS INTL COM 159864107 137,385 -16,184 -10.54 39,639 3.20 0.0999
2021-02-08 2020-12-31 13F CHARLES RIV LABS INTL COM 159864107 153,569 -13,348 -8.00 38,411 1.70 0.0993
2020-12-04 2020-09-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 166,917 -22,063 -11.67 37,768 14.70 0.1094
2020-11-06 2020-09-30 13F CHARLES RIV LABS INTL COM 159864107 172,124 -16,856 38,947 108,111.5142
2020-08-17 2020-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 188,980 -15,382 -7.53 32,929 27.80 0.1022
2020-08-11 2020-06-30 13F CHARLES RIV LABS INTL COM 159864107 186,069 -18,293 28,742 77,964.2049
2020-05-14 2020-03-31 13F CHARLES RIV LABS INTL COM 159864107 204,362 17,468 9.35 25,767 -9.41 0.0946
2020-02-06 2019-12-31 13F CHARLES RIV LABS INTL COM 159864107 186,894 -15,992 -7.88 28,445 5.99 0.0848
2019-11-12 2019-09-30 13F CHARLES RIV LABS INTL COM 159864107 202,886 4,460 2.25 26,838 -4.66 0.0687
2019-08-14 2019-06-30 13F CHARLES RIV LABS INTL COM 159864107 198,426 4,152 2.14 28,151 -0.05 0.0920
2019-05-15 2019-03-31 13F CHARLES RIV LABS INTL COM 159864107 194,274 -2,674 -1.36 28,166 7.63 0.0946
2019-02-13 2018-12-31 13F CHARLES RIV LABS INTL COM 159864107 196,948 -5,453 -2.69 26,170 -3.79 0.0932
2018-11-08 2018-09-30 13F CHARLES RIV LABS INTL COM 159864107 202,401 25,034 14.11 27,201 36.61 0.0986
2018-08-03 2018-06-30 13F CHARLES RIV LABS INTL COM 159864107 177,367 12,618 7.66 19,912 13.23 0.0677
2018-05-11 2018-03-31 13F CHARLES RIV LABS INTL COM 159864107 164,749 -4,461 -2.64 17,585 -5.05 0.0674
2018-02-08 2017-12-31 13F CHARLES RIV LABS INTL COM 159864107 169,210 5,640 3.45 18,521 4.82 0.0643
2017-11-06 2017-09-30 13F CHARLES RIV LABS INTL COM 159864107 163,570 53,105 48.07 17,669 58.13 0.0628
2017-07-31 2017-06-30 13F CHARLES RIV LABS INTL COM 159864107 110,465 12,424 12.67 11,174 26.70 0.0445
2017-05-05 2017-03-31 13F CHARLES RIV LABS INTL COM 159864107 98,041 1,242 1.28 8,819 19.58 0.0386
2017-02-02 2016-12-31 13F CHARLES RIV LABS INTL COM 159864107 96,799 14,193 17.18 7,375 7.12 0.0357
2016-11-04 2016-09-30 13F CHARLES RIV LABS INTL COM 159864107 82,606 4,735 6.08 6,885 7.24 0.0350
2016-08-11 2016-06-30 13F CHARLES RIV LABS INTL COM 159864107 77,871 689 0.89 6,420 9.52 0.0385
2016-05-10 2016-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 77,182 -3,148 -3.92 5,862 -9.23 0.0365
2016-02-03 2015-12-31 13F CHARLES RIV LABS INTL COM 159864107 80,330 38,796 93.41 6,458 144.81 0.0394
2015-11-02 2015-09-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 41,534 7,325 21.41 2,638 9.64 0.0242
2015-10-30 2015-09-30 13F CHARLES RIV LABS INTL COM 159864107 41,534 2,639
2015-08-07 2015-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 34,209 212 0.62 2,406 -10.82 0.0218
2015-08-04 2015-06-30 13F CHARLES RIV LABS INTL COM 159864107 34,209 212 2,406 0.0218
2015-05-14 2015-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 33,997 3,056 9.88 2,698 37.02 0.0234
2015-05-01 2015-03-31 13F CHANTICLEER HLDGS COM PAR $.0001 N 159864107 33,997 2,698
2015-02-10 2014-12-31 13F CHARLES RIV LABS INTL COM 159864107 30,941 30,941 1,969 0.0174
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.