Charles River Laboratories International, Inc.
MX ˙ BMV ˙ US1598641074
SecurityMX:CRL / Charles River Laboratories International, Inc.
InstitutionSolstein Capital, LLC
Latest Disclosed Ownership600 shares
Latest Disclosed Value $ 103,500
Solstein Capital, LLC ownership in CRL / Charles River Laboratories International, Inc.

On May 14, 2026 - Solstein Capital, LLC filed a 13F-HR form disclosing ownership of 600 shares of Charles River Laboratories International, Inc. (MX:CRL) valued at $103,500 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 600 shares of Charles River Laboratories International, Inc.. This represents a change in shares of 0.00% 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)
2026-05-14 2026-03-31 13F CHARLES RIV LABS INTL COM 159864107 600 0 0.00 104 -13.45 0.0425
2026-02-13 2025-12-31 13F CHARLES RIV LABS INTL COM 159864107 600 0 0.00 120 27.96 0.0480
2025-11-12 2025-09-30 13F CHARLES RIV LABS INTL COM 159864107 600 -114 -15.97 94 -13.89 0.0213
2025-08-01 2025-06-30 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 108 0.93 0.0556
2025-04-17 2025-03-31 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 107 -18.32 0.0625
2025-02-13 2024-12-31 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 132 -6.43 0.0737
2024-10-29 2024-09-30 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 141 -4.76 0.0745
2024-07-26 2024-06-30 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 147 -23.83 0.0962
2024-04-24 2024-03-31 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 193 14.88 0.1341
2024-01-23 2023-12-31 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 169 20.86 0.1249
2023-10-25 2023-09-30 13F CHARLES RIV LABS INTL COM 159864107 714 0 0.00 140 -7.33 0.1203
2023-07-27 2023-06-30 13F CHARLES RIV LABS INTL COM 159864107 714 114 19.00 150 23.97 0.1251
2023-04-19 2023-03-31 13F CHARLES RIV LABS INTL COM 159864107 600 0 0.00 121 -6.92 0.1054
2023-02-02 2022-12-31 13F CHARLES RIV LABS INTL COM 159864107 600 0 0.00 131 10.17 0.1094
2022-11-01 2022-09-30 13F CHARLES RIV LABS INTL COM 159864107 600 0 0.00 118 -7.81 0.1040
2022-08-09 2022-06-30 13F CHARLES RIV LABS INTL COM 159864107 600 -200 -25.00 128 -43.61 0.0980
2022-05-05 2022-03-31 13F CHARLES RIV LABS INTL COM 159864107 800 0 0.00 227 -24.58 0.1496
2022-01-27 2021-12-31 13F CHARLES RIV LABS INTL COM 159864107 800 0 0.00 301 -8.79 0.1814
2021-10-27 2021-09-30 13F CHARLES RIV LABS INTL COM 159864107 800 800 330 0.1894
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.