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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|

Rockwood Research

WAT

WATERS CORP /DE/

Laboratory Analytical Instruments · SIC 3826CIK 1000697Held by 17 tracked managersEDGAR filings ↗10-K/10-Q ↗

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16 of 16 reported changes in each tracked manager’s latest 13F vs its prior quarter (2 reporting periods). Every change is listed — no cap.

ManagerActionShare change% chgEnding % of 13F bookPosition size

Capital Research Global Investors

Q2 2026Position history →

New+358,198—0.02%$134.3M

OrbiMed Advisors

Q2 2026Position history →

New+40,300—0.29%$15.1M

Olstein Capital Management

Q1 2026Position history →

New+10,000—0.65%$3.0M

Viking Global Investors

Q2 2026Position history →

Add+405,678+32.3%1.8%$623.4M

First Pacific Advisors

Q2 2026Position history →

Add+692+0.3%1.2%$100.6M

Fuller & Thaler Asset Management

Q2 2026Position history →

Add+63,662+50.1%0.19%$71.5M

Adage Capital Management

Q2 2026Position history →

Add+56,700+64.5%0.08%$54.2M

Q2 2026Position history →

Add+1+0.1%<0.01%$0.4M

Q2 2026Position history →

Trim(938,443)(29.2%)6.2%$852.7M

First Eagle Investment Management

Q2 2026Position history →

Trim(240,079)(15.2%)0.82%$500.7M

Veritas Asset Management

Q2 2026Position history →

Trim(349,189)(29.1%)5.7%$319.4M

Holocene Advisors

Q2 2026Position history →

Trim(69,292)(7.6%)0.73%$317.9M

Q2 2026Position history →

Trim(613,573)(75.1%)1.8%$76.3M

Jensen Investment Management

Q2 2026Position history →

Trim(200)(0.5%)0.35%$14.5M

Motley Fool Asset Management

Q2 2026Position history →

Trim(1,277)(4.1%)0.44%$11.3M

Oakmark Funds (Harris Associates)

Q2 2026Position history →

Trim(270,299)(93.6%)0.01%$6.9M

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.