How many institutional investors hold WAT?

5 tracked institutional investors disclosed a position in WAT (WATERS CORP) in their most recent 13F filing.

Who is the largest institutional holder of WAT?

Andreas Halvorsen, Viking Global Investors, holds the largest disclosed position in WAT, valued at $374M.

Where does this WAT ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

WAT — WATERS CORP

Name: WATERS CORP (WAT) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About WATERS CORP (WAT)

WATERS CORP (WAT) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Andreas Halvorsen (Viking Global Investors), valued at $374M. Across recent filings, tracked investors recorded 3 new positions, 1 increased, 0 reduced, and 2 exited. All data sourced from SEC 13F filings.

Tracked investors reporting WAT

Investor	Firm	Shares	Market value	% of portfolio	As of
Andreas Halvorsen	Viking Global Investors	1.3M	$374.2M	1.05%	Mar 31, 2026
Izzy Englander	Millennium Management	215.2K	$64.1M	0.03%	Mar 31, 2026
Steve Cohen	Point72 Asset Management	356.3K	$106.1M	0.14%	Mar 31, 2026
Ken Griffin	Citadel Advisors	258.4K	$76.9M	0.01%	Mar 31, 2026
Ray Dalio	Bridgewater Associates	1.5K	$444	0.00%	Sep 30, 2025

Andreas HalvorsenMar 31, 2026
Viking Global Investors
Shares
1.3M
Value
$374.2M
% Portfolio
1.05%
Izzy EnglanderMar 31, 2026
Millennium Management
Shares
215.2K
Value
$64.1M
% Portfolio
0.03%
Steve CohenMar 31, 2026
Point72 Asset Management
Shares
356.3K
Value
$106.1M
% Portfolio
0.14%
Ken GriffinMar 31, 2026
Citadel Advisors
Shares
258.4K
Value
$76.9M
% Portfolio
0.01%
Ray DalioSep 30, 2025
Bridgewater Associates
Shares
1.5K
Value
$444
% Portfolio
0.00%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Izzy Englander	New	—	$64.1M	May 15, 2026
Ken Griffin	Sold	-100.00%	$0	May 15, 2026
Andreas Halvorsen	New	—	$374.2M	May 15, 2026
Ken Griffin	Increased	85.96%	$65.7K	Feb 17, 2026
Ray Dalio	Sold	-100.00%	$0	Feb 13, 2026
Ray Dalio	New	—	$444	Nov 13, 2025

Izzy Englander
New
$64.1MMay 15, 2026
Ken Griffin
Sold
$0(-100.00%)May 15, 2026
Andreas Halvorsen
New
$374.2MMay 15, 2026
Ken Griffin
Increased
$65.7K(85.96%)Feb 17, 2026
Ray Dalio
Sold
$0(-100.00%)Feb 13, 2026
Ray Dalio
New
$444Nov 13, 2025

Frequently asked questions

How many institutional investors hold WAT?: 5 tracked institutional investors disclosed a position in WAT (WATERS CORP) in their most recent 13F filing.
Who is the largest institutional holder of WAT?: Andreas Halvorsen, Viking Global Investors, holds the largest disclosed position in WAT, valued at $374M.
Did institutional ownership of WAT increase or decrease?: Across recent 13F filings, tracked investors recorded 3 new positions, 1 increased, 0 reduced, and 2 fully exited WAT.
Where does this WAT ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.