HEARTLAND ADVISORS INC

Position in WAT — Waters Corp /De/

CIK 937394 MILWAUKEE, WI

Position in WAT

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$9,174,603

+$5,463,718 QoQ

Shares Held

24,463

+96.3% QoQ

Ownership

0.025%

of shares outstanding

% of Portfolio

0.41%

of 13F equity value

Holder Rank

#206

of 1,173 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

HEARTLAND ADVISORS INC holds $26,741,656 across 3 Diagnostics & Research names. WAT ranks #2 (34.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DGX	Quest Diagnostics Inc	45,311	$9,603,666
2	WAT	Waters Corp /De/ This page	24,463	$9,174,603
3	ICLR	Icon PLC	45,843	$7,963,387

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$9,174,603	24,463	+96.3%	Shares	Defined	2026-08-11
2026-03-31	$3,710,885	12,461	—	Shares	Defined	2026-05-06
No filing history on record for this holder in this stock.