RHUMBLINE ADVISERS

Position in WAT — Waters Corp /De/

CIK 1115418 BOSTON, MA

Position in WAT

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$53,019,418

+$9,268,700 QoQ

Shares Held

178,037

+54.6% QoQ

Ownership

0.181%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 64.76743598240814.ToString("F0")% Shared 0.ToString("F0")% None 35.23256401759185.ToString("F0")%

Healthcare · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $1,138,138,827 across 32 Diagnostics & Research names. WAT ranks #7 (4.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TMO	Thermo Fisher Scientific Inc.	611,950	$300,791,783
2	DHR	Danaher Corp /De/	1,012,199	$191,912,930
3	IDXX	Idexx Laboratories Inc /De	173,731	$97,617,711
4	ILMN	Illumina, Inc.	609,802	$75,164,194
5	A	Agilent Technologies, Inc.	499,389	$56,920,358
6	IQV	Iqvia Holdings Inc.	324,104	$55,272,696
7	WAT	Waters Corp /De/ This page	178,037	$53,019,418
8	MTD	Mettler Toledo International Inc/	42,022	$52,998,146

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$53,019,418	178,037	+54.6%	Shares	Sole	2026-05-12
2025-12-31	$43,750,718	115,185	-13.3%	Shares	Sole	2026-02-13
2025-09-30	$39,813,268	132,795	+6.1%	Shares	Sole	2025-11-06
2025-06-30	$43,685,497	125,159	-0.3%	Shares	Sole	2025-08-12
2025-03-31	$46,262,169	125,518	+8.1%	Shares	Sole	2025-05-29
2024-12-31	$43,090,439	116,153	-2.9%	Shares	Sole	2025-05-29
2024-09-30	$43,031,687	119,569	-0.2%	Shares	Sole	2024-11-12
2024-06-30	$34,759,567	119,811	-4.6%	Shares	Sole	2024-08-01
2024-03-31	$43,220,141	125,556	-0.1%	Shares	Sole	2024-05-09
2023-12-31	$41,393,100	125,727	-29.3%	Shares	Sole	2024-02-08
2023-09-30	$48,794,572	177,946	+2.6%	Shares	Sole	2023-11-09
2023-06-30	$46,228,697	173,440	+0.4%	Shares	Sole	2023-08-08
2023-03-31	$53,493,536	172,766	+4.4%	Shares	Sole	2023-05-11
2022-12-31	$56,701,100	165,512	+2.0%	Shares	Sole	2023-02-14
2022-09-30	$43,727,199	162,235	-0.1%	Shares	Sole	2022-11-10
2022-06-30	$53,738,243	162,361	-0.1%	Shares	Sole	2022-08-11
2022-03-31	$50,437,443	162,497	+3.0%	Shares	Sole	2022-05-12
2021-12-31	$58,798,515	157,806	+2.0%	Shares	Sole	2022-02-10
2021-09-30	$55,292,889	154,752	+2.8%	Shares	Sole	2021-11-12
2021-06-30	$52,025,018	150,531	-6.1%	Shares	Sole	2021-08-05
2021-03-31	$45,550,177	160,292	-5.3%	Shares	Sole	2021-05-06
2020-12-31	$41,884,742	169,286	-2.4%	Shares	Sole	2021-02-10
2020-09-30	$33,923,671	173,363	-0.4%	Shares	Sole	2020-11-12
2020-06-30	$31,388,337	173,993	-5.7%	Shares	Sole	2020-08-13
2020-03-31	$33,588,042	184,499	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.