GAMCO INVESTORS, INC. ET AL

Position in WAT — Waters Corp /De/

CIK 807249 GREENWICH, CT

Position in WAT

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$391,309

New position

Shares Held

1,314

first reported quarter

Ownership

0.001%

of shares outstanding

% of Portfolio

0.00%

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

GAMCO INVESTORS, INC. ET AL holds $7,314,895 across 6 Diagnostics & Research names. WAT ranks #4 (5.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GRAL	GRAIL, Inc.	66,758	$3,450,053
2	TMO	Thermo Fisher Scientific Inc.	4,533	$2,228,105
3	NEO	Neogenomics Inc	100,000	$742,000
4	WAT	Waters Corp /De/ This page	1,314	$391,309
5	DHR	Danaher Corp /De/	1,603	$303,928
6	OPK	Opko Health, Inc.	175,000	$199,500

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$391,309	1,314	—	Shares	Sole	2026-05-14
No filing history on record for this holder in this stock.