CRL — CHARLES RIVER LABORATORIES INTERNATIONAL INC

Ownership history in IRIDIAN ASSET MANAGEMENT LLC/CT  ·  25 quarters on record

AI Ownership Summary

IRIDIAN ASSET MANAGEMENT LLC/CT reported CHARLES RIVER LABORATORIES INTERNATIONAL INC (CRL) in 25 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 2.85% in 2025 Q1. The latest visible filing shows CRL at 1.95% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this CRL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was IRIDIAN ASSET MANAGEMENT LLC/CT's position in CHARLES RIVER LABORATORIES INTERNATIONAL INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

CRL was reported at 1.95% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
2.85% in 2025 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

CRL stock page IRIDIAN ASSET MANAGEMENT LLC/CT fund profile IRIDIAN ASSET MANAGEMENT LLC/CT full holdings
How IRIDIAN ASSET MANAGEMENT LLC/CT held CRL — position size vs. price
% of Fund (quarterly)    CRL price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 26,568 -2,058 -7.2% 1.95% $5.3M 2026-02-14 (Est.) $161.35
2025 Q3 REDUCED 28,626 -18,940 -39.8% 1.76% $4.5M 2025-10-24 $197.04
2025 Q2 REDUCED 47,566 -12,853 -21.3% 2.50% $7.2M 2025-08-14 $155.80
2025 Q1 ADDED 60,419 +9,454 +18.5% 2.85% $9.1M 2025-04-30 $118.62
2024 Q4 REDUCED 50,965 -4,078 -7.4% 2.50% $9.4M 2025-01-28 $163.64
2024 Q3 ADDED 55,043 +8,876 +19.2% 2.32% $10.8M 2024-10-25 $182.12
2024 Q2 ADDED 46,167 +21,763 +89.2% 2.15% $9.5M 2024-07-26 $233.47
2024 Q1 REDUCED 24,404 -6,738 -21.6% 1.30% $6.6M 2024-05-01 $232.69
2023 Q4 ADDED 31,142 +1,803 +6.1% 1.34% $7.4M 2024-01-26 $220.28
16 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding CRL

As of 2026 Q1 — sorted by position size

Laurus Global Equity Management Inc. 3Y 12.11% Miller Global Investments, LLC 0.32% CONFLUENCE INVESTMENT MANAGEMENT LLC 3Y 7Y 0.27% Cardinal Capital Management 3Y 7Y 0.25% Everhart Financial Group, Inc. 3Y 0.04% Bayforest Capital Ltd 0.04% Cambridge Advisors Inc. 3Y 7Y 0.04% Versant Capital Management, Inc 3Y 7Y 0.04% SG Americas Securities, LLC 3Y 7Y 0.03% GAMMA Investing LLC 0.03%

FAQ About IRIDIAN ASSET MANAGEMENT LLC/CT and CRL

These are the practical questions this page is built to answer before you even open the full history table.

How long has IRIDIAN ASSET MANAGEMENT LLC/CT reported owning CRL?

IRIDIAN ASSET MANAGEMENT LLC/CT reported CRL across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported CRL position in IRIDIAN ASSET MANAGEMENT LLC/CT's portfolio?

The largest reported portfolio weight for CRL was 2.85% in 2025 Q1.

What is the latest reported CRL position on this page?

The most recent filing on this page is 2025 Q4, when IRIDIAN ASSET MANAGEMENT LLC/CT reported 26,568 shares, equal to 1.95% of portfolio, with an estimated market value of $5.3M.

What does the chart on this CRL ownership page compare?

The chart compares IRIDIAN ASSET MANAGEMENT LLC/CT's quarterly CRL portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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