RKWD

ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|

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CRL

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

Services-Commercial Physical & Biological Research · SIC 8731CIK 1100682Held by 7 tracked managersEDGAR filings ↗10-K/10-Q ↗

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8 of 8 reported changes in each tracked manager’s latest 13F vs its prior quarter (Q2 2026). Every change is listed — no cap.

ManagerActionShare change% chgEnding % of 13F bookPosition size

SRS Investment Management

Q2 2026Position history →

New+187,384—0.40%$42.5M

Suvretta Capital Management

Q2 2026Position history →

New+1,010—<0.01%$0.2M

Oakmark Funds (Harris Associates)

Q2 2026Position history →

Add+87,848+4.1%0.68%$508.3M

Ariel Investments

Q2 2026Position history →

Add+62,002+4.3%3.4%$341.6M

Lakewood Capital Management

Q2 2026Position history →

Add+65,000+94.2%1.6%$30.4M

Capital World Investors

Q2 2026Position history →

Add+5,890+72.3%<0.01%$3.2M

Adage Capital Management

Q2 2026Position history →

Trim(42,529)(16.6%)0.07%$48.4M

Maverick Capital

Q2 2026Position history →

Exit(8,178)(100.0%)exited$1.4M

Changes compare each manager’s latest 13F with its prior quarter for the same CUSIP. “First observation” rows have no earlier stored filing to compare and are never counted as buys; “Split?” rows moved by a near-whole factor at an unchanged value and are treated as stock splits, not trades. Ending weight is the position after the change, not the size of the change.