Welch & Forbes LLC

Position in WAT — Waters Corp /De/

CIK 105495 Boston, MA

Position in WAT

as of Mar 31, 2026 · filed May 1, 2026 Compact

Position Value

$2,263,577

+$843,773 QoQ

Shares Held

7,601

+103.3% QoQ

Ownership

0.008%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 60.478884357321405.ToString("F0")% Shared 0.ToString("F0")% None 39.521115642678595.ToString("F0")%

Healthcare · as of Mar 31, 2026

Welch & Forbes LLC holds $331,978,026 across 7 Diagnostics & Research names. WAT ranks #5 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DHR	Danaher Corp /De/	612,657	$116,159,767
2	IDXX	Idexx Laboratories Inc /De	168,181	$94,499,222
3	MTD	Mettler Toledo International Inc/	58,807	$74,167,388
4	TMO	Thermo Fisher Scientific Inc.	88,934	$43,713,729
5	WAT	Waters Corp /De/ This page	7,601	$2,263,577
6	ICLR	Icon PLC	8,605	$952,229
7	ILMN	Illumina, Inc.	1,802	$222,114

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,263,577	7,601	+103.3%	Shares	Sole	2026-05-01
2025-12-31	$1,419,804	3,738	0.0%	Shares	Sole	2026-02-10
2025-09-30	$1,120,689	3,738	0.0%	Shares	Sole	2025-11-04
2025-06-30	$1,304,711	3,738	-1.7%	Shares	Sole	2025-08-05
2025-03-31	$1,401,303	3,802	+1.7%	Shares	Sole	2025-05-02
2024-12-31	$1,387,094	3,739	+0.0%	Shares	Sole	2025-02-07
2024-09-30	$1,345,268	3,738	0.0%	Shares	Sole	2024-11-04
2024-06-30	$1,084,468	3,738	0.0%	Shares	Sole	2024-08-02
2024-03-31	$1,286,731	3,738	-0.2%	Shares	Sole	2024-05-03
2023-12-31	$1,232,637	3,744	0.0%	Shares	Sole	2024-02-06
2023-09-30	$1,026,642	3,744	-1.3%	Shares	Sole	2023-11-03
2023-06-30	$1,011,252	3,794	+0.2%	Shares	Sole	2023-07-28
2023-03-31	$1,172,878	3,788	-2.6%	Shares	Sole	2023-04-14
2022-12-31	$1,331,951	3,888	-1.3%	Shares	Sole	2023-02-02
2022-09-30	$1,061,409	3,938	0.0%	Shares	Sole	2022-10-31
2022-06-30	$1,303,399	3,938	-4.8%	Shares	Sole	2022-07-22
2022-03-31	$1,284,393	4,138	0.0%	Shares	Sole	2022-04-25
2021-12-31	$1,541,818	4,138	-1.7%	Shares	Sole	2022-01-19
2021-09-30	$1,503,875	4,209	-4.9%	Shares	Sole	2021-10-13
2021-06-30	$1,529,324	4,425	0.0%	Shares	Sole	2021-07-22
2021-03-31	$1,257,452	4,425	-2.7%	Shares	Sole	2021-04-14
2020-12-31	$1,125,761	4,550	-3.7%	Shares	Sole	2021-01-20
2020-09-30	$924,588	4,725	-2.1%	Shares	Sole	2020-10-23
2020-06-30	$870,971	4,828	+0.1%	Shares	Sole	2020-07-15
2020-03-31	$878,391	4,825	—	Shares	Sole	2020-04-17
No filing history on record for this holder in this stock.