VIKING GLOBAL INVESTORS LP

Position in WAT — Waters Corp /De/

CIK 1103804 STAMFORD, CT

Position in WAT

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$374,174,383

New position

Shares Held

1,256,462

first reported quarter

Ownership

1.28%

of shares outstanding

% of Portfolio

1.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2026

1 quarter on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

VIKING GLOBAL INVESTORS LP holds $1,610,371,378 across 3 Diagnostics & Research names. WAT ranks #3 (23.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TMO	Thermo Fisher Scientific Inc.	1,668,025	$819,884,328
2	ADPT	Adaptive Biotechnologies Corp	29,993,708	$416,312,667
3	WAT	Waters Corp /De/ This page	1,256,462	$374,174,383

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$374,174,383	1,256,462	—	Shares	Sole	2026-05-15
No filing history on record for this holder in this stock.