Charles River Laboratories International, Inc.
MX ˙ BMV ˙ US1598641074
SecurityMX:CRL / Charles River Laboratories International, Inc.
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership201,623 shares
Latest Disclosed Value $ 34,779,968
Macquarie Group Ltd reports 0.26% decrease in ownership of CRL / Charles River Laboratories International, Inc.

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 201,623 shares of Charles River Laboratories International, Inc. (MX:CRL) valued at $34,779,968 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 202,141 shares of Charles River Laboratories International, Inc.. This represents a change in shares of -0.26% 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)
2026-05-15 2026-03-31 13F CHARLES RIV LABS INTL COM 159864107 201,623 -518 -0.26 34,780 -13.75 0.1619
2026-02-13 2025-12-31 13F CHARLES RIV LABS INTL COM 159864107 202,141 -27,950 -12.15 40,323 12.01 0.1762
2025-11-13 2025-09-30 13F CHARLES RIV LABS INTL COM 159864107 230,091 227,433 8,556.55 36,000 8,832.75 0.0420
2025-08-14 2025-06-30 13F CHARLES RIV LABS INTL COM 159864107 2,658 -48,926 -94.85 403 -94.81 0.0005
2025-08-14 2025-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 51,584 9,923 23.82 7,765 5.99 0.0096
2025-05-15 2025-03-31 13F CHARLES RIV LABS INTL COM 159864107 51,584 9,923 7,332 0.0060
2025-02-14 2024-12-31 13F CHARLES RIV LABS INTL COM 159864107 41,661 38,250 1,121.37 7,326 991.65 0.0089
2024-11-14 2024-09-30 13F CHARLES RIV LABS INTL COM 159864107 3,411 1,100 47.60 672 40.67 0.0007
2024-08-09 2024-06-30 13F CHARLES RIV LABS INTL COM 159864107 2,311 -32,324 -93.33 477 -94.92 0.0005
2024-05-14 2024-03-31 13F CHARLES RIV LABS INTL COM 159864107 34,635 6,135 21.53 9,384 39.29 0.0106
2024-02-14 2023-12-31 13F CHARLES RIV LABS INTL COM 159864107 28,500 13,214 86.45 6,738 124.94 0.0078
2023-11-14 2023-09-30 13F CHARLES RIV LABS INTL COM 159864107 15,286 -595 -3.75 2,995 -10.30 0.0038
2023-10-27 2023-06-30 13F/A-2 CHARLES RIV LABS INTL COM 159864107 15,881 -5,555 -25.91 3,339 -22.82 0.0038
2023-10-12 2023-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 15,881 -5,555 3,339 0.0034
2023-08-14 2023-06-30 13F CHARLES RIV LABS INTL COM 159864107 15,881 -5,555 3,339 0.0034
2023-06-01 2023-03-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 21,436 14,508 209.41 4,326 186.68 0.0051
2023-05-15 2023-03-31 13F CHARLES RIV LABS INTL COM 159864107 21,436 14,508 4,326 0.0040
2023-02-21 2022-12-31 13F CHARLES RIV LABS INTL COM 159864107 6,928 -3,652 -34.52 1,510 -27.52 0.0018
2022-11-14 2022-09-30 13F CHARLES RIV LABS INTL COM 159864107 10,580 4,853 84.74 2,082 69.82 0.0026
2022-08-17 2022-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 5,727 4,513 371.75 1,226 255.36 0.0014
2022-08-15 2022-06-30 13F CHARLES RIV LABS INTL COM 159864107 5,727 4,513 1,226 0.0004
2022-05-16 2022-03-31 13F CHARLES RIV LABS INTL COM 159864107 1,214 -96 -7.33 345 -30.02 0.0003
2022-02-11 2021-12-31 13F CHARLES RIV LABS INTL COM 159864107 1,310 -748 -36.35 493 -41.93 0.0004
2021-11-12 2021-09-30 13F CHARLES RIV LABS INTL COM 159864107 2,058 -339 -14.14 849 -4.28 0.0007
2021-08-13 2021-06-30 13F CHARLES RIV LABS INTL COM 159864107 2,397 617 34.66 887 72.23 0.0007
2021-05-14 2021-03-31 13F CHARLES RIV LABS INTL COM 159864107 1,780 -495 -21.76 515 -9.33 0.0007
2021-02-16 2020-12-31 13F CHARLES RIV LABS INTL COM 159864107 2,275 158 7.46 568 18.58 0.0008
2020-11-13 2020-09-30 13F CHARLES RIV LABS INTL COM 159864107 2,117 100 4.96 479 36.08 0.0008
2020-08-11 2020-06-30 13F CHARLES RIV LABS INTL COM 159864107 2,017 698 52.92 352 112.05 0.0006
2020-05-15 2020-03-31 13F CHARLES RIV LABS INTL COM 159864107 1,319 0 0.00 166 -17.41 0.0003
2020-03-18 2019-12-31 13F/A-2 CHARLES RIV LABS INTL COM 159864107 1,319 -1,740 -56.88 201 -50.37 0.0003
2020-02-28 2019-12-31 13F/A-1 CHARLES RIV LABS INTL COM 159864107 1,319 0 201 0.0003
2020-02-14 2019-12-31 13F CHARLES RIV LABS INTL COM 159864107 1,319 -1,740 201 252.2380
2019-11-14 2019-09-30 13F CHARLES RIV LABS INTL COM 159864107 3,059 -726 -19.18 405 -24.72 0.0007
2019-11-06 2019-06-30 13F/A-2 CHARLES RIV LABS INTL COM 159864107 3,785 2,617 224.06 538 216.47 0.0009
2019-09-24 2019-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 3,785 0 538 0.0009
2019-08-14 2019-06-30 13F CHARLES RIV LABS INTL COM 159864107 3,785 2,617 538
2019-05-15 2019-03-31 13F CHARLES RIV LABS INTL COM 159864107 1,168 1,068 1,068.00 170 1,445.45 0.0003
2019-02-15 2018-12-31 13F CHARLES RIV LABS INTL COM 159864107 100 100 11 0.0000
2018-11-15 2018-09-30 13F CHARLES RIV LABS INTL COM 159864107 0 -400 -100.00 0 -100.00
2019-03-21 2018-06-30 13F/A-1 CHARLES RIV LABS INTL COM 159864107 400 400 45 0.0001
2018-08-14 2018-06-30 13F CHARLES RIV LABS INTL COM 159864107 400 45 0.0001
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.