찰스 리버 연구소 인터내셔널, Inc.
MX ˙ BMV ˙ US1598641074
SecurityMX:CRL / Charles River Laboratories International, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership3,721 shares
Latest Disclosed Value $ 641,886
Stifel Financial Corp reports 8.66% decrease in ownership of CRL / Charles River Laboratories International, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 3,721 shares of Charles River Laboratories International, Inc. (MX:CRL) valued at $641,886 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,074 shares of Charles River Laboratories International, Inc.. This represents a change in shares of -8.66% 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)
2026-05-12 2026-03-31 13F CHARLES RIV LABS INTL COM 159864107 3,721 -353 -8.66 642 -21.06 0.0006
2026-02-13 2025-12-31 13F CHARLES RIV LABS INTL COM 159864107 4,074 -1,871 -31.47 813 -12.69 0.0007
2025-11-12 2025-09-30 13F CHARLES RIV LABS INTL COM 159864107 5,945 359 6.43 930 9.80 0.0008
2025-08-14 2025-06-30 13F CHARLES RIV LABS INTL COM 159864107 5,586 -79,603 -93.44 848 -93.39 0.0008
2025-05-14 2025-03-31 13F CHARLES RIV LABS INTL COM 159864107 85,189 -4,866 -5.40 12,823 -22.87 0.0136
2025-02-13 2024-12-31 13F CHARLES RIV LABS INTL COM 159864107 90,055 -10,538 -10.48 16,624 -16.10 0.0173
2024-11-14 2024-09-30 13F CHARLES RIV LABS INTL COM 159864107 100,593 -10,325 -9.31 19,814 -13.53 0.0208
2024-08-13 2024-06-30 13F CHARLES RIV LABS INTL COM 159864107 110,918 1,372 1.25 22,913 -22.80 0.0258
2024-05-14 2024-03-31 13F CHARLES RIV LABS INTL COM 159864107 109,546 3,978 3.77 29,682 18.93 0.0338
2024-02-12 2023-12-31 13F CHARLES RIV LABS INTL COM 159864107 105,568 -527 -0.50 24,956 20.02 0.0314
2023-11-13 2023-09-30 13F CHARLES RIV LABS INTL COM 159864107 106,095 1,761 1.69 20,793 -5.21 0.0292
2023-08-14 2023-06-30 13F CHARLES RIV LABS INTL COM 159864107 104,334 6,704 6.87 21,937 11.33 0.0300
2023-05-12 2023-03-31 13F CHARLES RIV LABS INTL COM 159864107 97,630 2,802 2.95 19,704 -4.65 0.0282
2023-02-13 2022-12-31 13F CHARLES RIV LABS INTL COM 159864107 94,828 -5,137 -5.14 20,663 5.03 0.0310
2022-11-14 2022-09-30 13F CHARLES RIV LABS INTL COM 159864107 99,965 2,945 3.04 19,673 -5.24 0.0322
2022-08-15 2022-06-30 13F CHARLES RIV LABS INTL COM 159864107 97,020 1,910 2.01 20,760 -23.14 0.0325
2022-05-13 2022-03-31 13F CHARLES RIV LABS INTL COM 159864107 95,110 5,375 5.99 27,009 -20.12 0.0369
2022-02-14 2021-12-31 13F CHARLES RIV LABS INTL COM 159864107 89,735 3,804 4.43 33,810 -4.66 0.0447
2021-11-15 2021-09-30 13F CHARLES RIV LABS INTL COM 159864107 85,931 1,776 2.11 35,461 13.90 0.0520
2021-08-13 2021-06-30 13F CHARLES RIV LABS INTL COM 159864107 84,155 12,079 16.76 31,133 49.04 0.0466
2021-05-14 2021-03-31 13F CHARLES RIV LABS INTL COM 159864107 72,076 4,058 5.97 20,889 22.92 0.0344
2021-02-12 2020-12-31 13F CHARLES RIV LABS INTL COM 159864107 68,018 6,838 11.18 16,994 22.66 0.0303
2020-11-16 2020-09-30 13F CHARLES RIV LABS INTL COM 159864107 61,180 4,918 8.74 13,854 41.24 0.0285
2020-08-14 2020-06-30 13F CHARLES RIV LABS INTL COM 159864107 56,262 5,115 10.00 9,809 52.24 0.0226
2020-05-14 2020-03-31 13F CHARLES RIV LABS INTL COM 159864107 51,147 4,084 8.68 6,443 -10.39 0.0178
2020-02-13 2019-12-31 13F CHARLES RIV LABS INTL COM 159864107 47,063 2,950 6.69 7,190 22.95 0.0150
2019-11-19 2019-09-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 44,113 6,680 17.85 5,848 9.95 0.0149
2019-11-13 2019-09-30 13F CHARLES RIV LABS INTL COM 159864107 44,229 6,796 5,864 3,287.0659
2019-08-14 2019-06-30 13F CHARLES RIV LABS INTL COM 159864107 37,433 11,952 46.91 5,319 44.11 0.0137
2019-05-14 2019-03-31 13F CHARLES RIV LABS INTL COM 159864107 25,481 1,546 6.46 3,691 36.91 0.0104
2019-02-13 2018-12-31 13F CHARLES RIV LABS INTL COM 159864107 23,935 1,316 5.82 2,696 -11.26 0.0087
2018-11-13 2018-09-30 13F CHARLES RIV LABS INTL COM 159864107 22,619 22,619 3,038 0.0087
2018-05-11 2018-03-31 13F CHARLES RIV LABS INTL COM 159864107 0 -2,086 -100.00 0 -100.00
2018-02-14 2017-12-31 13F CHARLES RIV LABS INTL COM 159864107 2,086 -97 -4.44 226 -3.00 0.0007
2017-11-13 2017-09-30 13F CHARLES RIV LABS INTL COM 159864107 2,183 -404 -15.62 233 -10.73 0.0008
2017-08-14 2017-06-30 13F CHARLES RIV LABS INTL COM 159864107 2,587 2,587 261 0.0010
2015-02-13 2014-12-31 13F CHARLES RIV LABS INTL COM 159864107 0 -28,498 -100.00 0 -100.00
2014-11-13 2014-09-30 13F CHARLES RIV LABS INTL COM 159864107 28,498 -11,096 -28.02 1,702 -19.68 0.0149
2014-08-14 2014-06-30 13F CHARLES RIV LABS INTL COM 159864107 39,594 1,250 3.26 2,119 -8.43 0.0190
2014-05-15 2014-03-31 13F CHARLES RIV LABS INTL COM 159864107 38,344 38,344 2,314 0.0221
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.