찰스 리버 연구소 인터내셔널, Inc.
US ˙ NYSE ˙ US1598641074

SecurityCRL / Charles River Laboratories International, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership2,181 shares
Latest Disclosed Value $ 376,222
Brown Advisory Inc reports 0.41% increase in ownership of CRL / Charles River Laboratories International, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 2,181 shares of Charles River Laboratories International, Inc. (US:CRL) valued at $376,222 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,172 shares of Charles River Laboratories International, Inc.. This represents a change in shares of 0.41% during the quarter. The current value of the position is $405,208 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 2,181 9 0.41 376 -13.16 0.0003
2026-02-13 2025-12-31 13F CHARLES RIV LABS INTL COM 159864107 2,172 -77 -3.42 433 23.36 0.0006
2025-11-14 2025-09-30 13F CHARLES RIV LABS INTL COM 159864107 2,249 -84 -3.60 352 -0.57 0.0005
2025-08-13 2025-06-30 13F CHARLES RIV LABS INTL COM 159864107 2,333 114 5.14 354 5.69 0.0005
2025-04-30 2025-03-31 13F CHARLES RIV LABS INTL COM 159864107 2,219 -12,506 -84.93 334 -87.71 0.0005
2025-02-14 2024-12-31 13F CHARLES RIV LABS INTL COM 159864107 14,725 -793 -5.11 2,718 -11.06 0.0034
2024-11-13 2024-09-30 13F CHARLES RIV LABS INTL COM 159864107 15,518 -1,128 -6.78 3,057 -11.11 0.0038
2024-08-14 2024-06-30 13F CHARLES RIV LABS INTL COM 159864107 16,646 944 6.01 3,439 -19.18 0.0045
2024-04-24 2024-03-31 13F CHARLES RIV LABS INTL COM 159864107 15,702 968 6.57 4,254 22.14 0.0057
2024-02-08 2023-12-31 13F CHARLES RIV LABS INTL COM 159864107 14,734 -179 -1.20 3,483 19.20 0.0049
2023-10-25 2023-09-30 13F CHARLES RIV LABS INTL COM 159864107 14,913 117 0.79 2,923 -6.05 0.0048
2023-07-31 2023-06-30 13F CHARLES RIV LABS INTL COM 159864107 14,796 -152,194 -91.14 3,111 -90.77 0.0049
2023-05-08 2023-03-31 13F CHARLES RIV LABS INTL COM 159864107 166,990 1,482 0.90 33,702 -6.55 0.0571
2023-02-13 2022-12-31 13F CHARLES RIV LABS INTL COM 159864107 165,508 -19,315 -10.45 36,064 -0.85 0.0670
2022-11-14 2022-09-30 13F CHARLES RIV LABS INTL COM 159864107 184,823 -3,917 -2.08 36,373 -9.93 0.0708
2022-11-14 2022-06-30 13F/A-2 CHARLES RIV LABS INTL COM 159864107 188,740 -90,239 -32.35 40,385 -49.02 0.0759
2022-09-13 2022-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 184,863 -87,069 39,555 0.0684
2022-08-02 2022-06-30 13F CHARLES RIV LABS INTL COM 159864107 188,641 -86,763 41,961 0.0674
2022-11-14 2022-03-31 13F/A-2 CHARLES RIV LABS INTL COM 159864107 278,979 -360,156 -56.35 79,221 -67.10 0.1181
2022-09-13 2022-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 271,932 -367,203 77,220 0.1084
2022-05-09 2022-03-31 13F CHARLES RIV LABS INTL COM 159864107 275,404 -363,731 79,117 0.1075
2022-01-27 2021-12-31 13F CHARLES RIV LABS INTL COM 159864107 639,135 -48,216 -7.01 240,814 -15.10 0.2984
2021-11-12 2021-09-30 13F CHARLES RIV LABS INTL COM 159864107 687,351 -85,090 -11.02 283,649 -0.73 0.4187
2021-07-29 2021-06-30 13F CHARLES RIV LABS INTL COM 159864107 772,441 -109,207 -12.39 285,741 11.82 0.4307
2021-05-14 2021-03-31 13F CHARLES RIV LABS INTL COM 159864107 881,648 24,669 2.88 255,529 19.34 0.4369
2021-02-12 2020-12-31 13F CHARLES RIV LABS INTL COM 159864107 856,979 -3,324 -0.39 214,125 9.91 0.3800
2020-11-16 2020-09-30 13F CHARLES RIV LABS INTL COM 159864107 860,303 -126,332 -12.80 194,815 13.25 0.4024
2020-08-14 2020-06-30 13F CHARLES RIV LABS INTL COM 159864107 986,635 52,733 5.65 172,019 45.94 0.4007
2020-05-15 2020-03-31 13F CHARLES RIV LABS INTL COM 159864107 933,902 16,904 1.84 117,867 -15.86 0.3611
2020-02-14 2019-12-31 13F CHARLES RIV LABS INTL COM 159864107 916,998 6,071 0.67 140,081 16.17 0.3554
2019-11-14 2019-09-30 13F CHARLES RIV LABS INTL COM 159864107 910,927 63,007 7.43 120,579 0.22 0.3383
2019-08-12 2019-06-30 13F CHARLES RIV LABS INTL COM 159864107 847,920 616 0.07 120,320 -2.24 0.3443
2019-05-15 2019-03-31 13F CHARLES RIV LABS INTL COM 159864107 847,304 48,076 6.02 123,072 36.06 0.3491
2019-02-13 2018-12-31 13F CHARLES RIV LABS INTL COM 159864107 799,228 7,663 0.97 90,457 -15.06 0.3039
2018-11-13 2018-09-30 13F CHARLES RIV LABS INTL COM 159864107 791,565 89,065 12.68 106,497 35.04 0.3030
2018-08-10 2018-06-30 13F CHARLES RIV LABS INTL COM 159864107 702,500 36,219 5.44 78,863 10.89 0.2426
2018-06-28 2018-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 666,281 12,227 1.87 71,119 -0.65 0.2299
2018-05-14 2018-03-31 13F CHARLES RIV LABS INTL COM 159864107 384,846 -269,208 41,078
2018-02-12 2017-12-31 13F CHARLES RIV LABS INTL COM 159864107 654,054 -30,342 -4.43 71,586 -3.17 0.2266
2017-11-13 2017-09-30 13F CHARLES RIV LABS INTL COM 159864107 684,396 -86,523 -11.22 73,928 -5.19 0.2451
2017-08-14 2017-06-30 13F CHARLES RIV LABS INTL COM 159864107 770,919 19,350 2.57 77,979 15.35 0.2384
2017-05-15 2017-03-31 13F CHARLES RIV LABS INTL COM 159864107 751,569 45,803 6.49 67,604 25.72 0.2306
2017-02-13 2016-12-31 13F CHARLES RIV LABS INTL COM 159864107 705,766 163,992 30.27 53,773 19.10 0.1920
2016-11-14 2016-09-30 13F CHARLES RIV LABS INTL COM 159864107 541,774 38,938 7.74 45,151 8.92 0.1552
2016-08-09 2016-06-30 13F CHARLES RIV LABS INTL COM 159864107 502,836 7,074 1.43 41,454 10.11 0.1456
2016-05-13 2016-03-31 13F CHARLES RIV LABS INTL COM 159864107 495,762 -7,031 -1.40 37,648 -6.86 0.1300
2016-02-08 2015-12-31 13F CHARLES RIV LABS INTL COM 159864107 502,793 17,634 3.63 40,420 31.16 0.1371
2015-11-13 2015-09-30 13F CHARLES RIV LABS INTL COM 159864107 485,159 24,885 5.41 30,817 -4.81 0.1100
2015-08-11 2015-06-30 13F CHARLES RIV LABS INTL COM 159864107 460,274 -55,373 -10.74 32,373 -20.82 0.1054
2015-05-14 2015-03-31 13F CHARLES RIV LABS INTL COM 159864107 515,647 -19,837 -3.70 40,885 19.97 0.1302
2015-02-13 2014-12-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 535,484 -52,784 -8.97 34,078 -3.03 0.1074
2015-02-09 2014-12-31 13F CHARLES RIV LABS INTL COM 159864107 537,048 34,113
2014-11-10 2014-09-30 13F CHARLES RIV LABS INTL COM 159864107 588,268 -1,938 -0.33 35,143 11.25 0.1129
2014-08-08 2014-06-30 13F CHARLES RIV LABS INTL COM 159864107 590,206 41,852 7.63 31,588 -4.53 0.0994
2014-05-13 2014-03-31 13F CHARLES RIV LABS INTL COM 159864107 548,354 34,224 6.66 33,088 21.34 0.1054
2014-02-11 2013-12-31 13F CHARLES RIV LABS INTL COM 159864107 514,130 39,503 8.32 27,269 24.20 0.0884
2013-11-08 2013-09-30 13F CHARLES RIV LABS INTL COM 159864107 474,627 49,805 11.72 21,956 25.96 0.0784
2013-08-13 2013-06-30 13F CHARLES RIV LABS INTL COM 159864107 424,822 424,822 17,431 0.0698
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.