Clarkston Capital Partners, LLC

Position in AVTR — Avantor, Inc.

CIK 1562855 ROCHESTER, MI

Position in AVTR

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

Position Value

$67,654,409

-$105,449,635 QoQ

Shares Held

8,629,389

-42.9% QoQ

Ownership

1.26%

of shares outstanding

% of Portfolio

5.26%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2023

13 quarters on record

Voting authority Sole 84.87407393501441.ToString("F0")% Shared 0.ToString("F0")% None 15.125926064985599.ToString("F0")%

Healthcare · as of Mar 31, 2026

Clarkston Capital Partners, LLC holds $129,274,698 across 5 Medical Instruments & Supplies names. AVTR ranks #1 (52.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AVTR	Avantor, Inc. This page	8,629,389	$67,654,409
2	NVST	Envista Holdings Corp	1,182,055	$29,988,735
3	BDX	Becton Dickinson & Co	131,106	$20,613,796
4	ALGN	Align Technology Inc	59,975	$10,281,514
5	ALC	Alcon Inc	9,771	$736,244

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$67,654,409	8,629,389	-42.9%	Shares	Sole	2026-05-14
2025-12-31	$173,104,044	15,105,065	+0.6%	Shares	Sole	2026-02-13
2025-09-30	$187,453,656	15,020,325	+7.4%	Shares	Sole	2025-11-13
2025-06-30	$188,198,931	13,982,090	+45.8%	Shares	Sole	2025-08-13
2025-03-31	$155,485,509	9,591,950	+17.8%	Shares	Sole	2025-05-14
2024-12-31	$171,632,532	8,145,825	+43.6%	Shares	Sole	2025-02-13
2024-09-30	$146,745,764	5,672,430	-1.5%	Shares	Sole	2024-11-07
2024-06-30	$122,119,844	5,760,370	-1.6%	Shares	Sole	2024-08-14
2024-03-31	$149,625,923	5,851,620	+0.1%	Shares	Sole	2024-05-14
2023-12-31	$133,419,593	5,844,047	+237.1%	Shares	Sole	2024-02-14
2023-09-30	$36,547,492	1,733,752	+29.7%	Shares	Sole	2023-11-02
2023-06-30	$27,460,028	1,336,905	+25.1%	Shares	Sole	2023-08-07
2023-03-31	$22,597,074	1,068,925	—	Shares	Sole	2023-05-15
No filing history on record for this holder in this stock.