Clarkston Capital Partners, LLC

CIK

1562855

City

ROCHESTER

State / Country

Stock

AMG — Affiliated Managers Group, Inc.

Top Portfolio Positions

80 positions · $1,404,635,494 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
POST	Post Holdings, Inc. Consumer Defensive	2,386,134	$235,893,206	16.79%
CLVT	Clarivate PLC Technology	42,846,530	$108,401,720	7.72%
AMG	Affiliated Managers Group, Inc. Financial Services	313,708	$86,803,003	6.18%
AVTR	Avantor, Inc. Healthcare	8,629,389	$67,654,409	4.82%
CCC	CCC Intelligent Solutions Holdings Inc. Technology	9,576,746	$57,460,476	4.09%
LKQ	Lkq Corp Consumer Cyclical	1,537,743	$45,163,511	3.22%
LW	Lamb Weston Holdings, Inc. Consumer Defensive	990,705	$41,867,193	2.98%
GFL	GFL Environmental Inc. Industrials	929,859	$38,793,717	2.76%
MIDD	MIDDLEBY Corp Industrials	289,516	$38,384,031	2.73%
IT	Gartner Inc Technology	229,592	$36,353,597	2.59%

Portfolio Trend

24 quarters · across all stocks

Holdings in AMG

Compact Export CSV

Shares Held

Position Value (USD)

26 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$86,803,003	313,708	-65.3%	Shares	Sole	2026-05-14
2025-12-31	$260,639,425	904,119	0.0%	Shares	Sole	2026-02-13
2025-12-31	$260,639,425	904,119	-26.6%	Shares	Sole	2026-02-13
2025-09-30	$293,825,157	1,232,333	-14.1%	Shares	Sole	2025-11-13
2025-06-30	$282,434,606	1,435,354	-9.5%	Shares	Sole	2025-08-13
2025-03-31	$266,381,991	1,585,324	+0.8%	Shares	Sole	2025-05-14
2024-12-31	$290,729,189	1,572,189	0.0%	Shares	Sole	2025-02-14
2024-12-31	$290,729,189	1,572,189	-11.4%	Shares	Sole	2025-02-13
2024-09-30	$315,639,805	1,775,252	-2.9%	Shares	Sole	2024-11-07
2024-06-30	$285,649,213	1,828,389	-2.6%	Shares	Sole	2024-08-14
2024-03-31	$314,418,058	1,877,459	-15.8%	Shares	Sole	2024-05-14
2023-12-31	$337,512,454	2,228,982	-1.0%	Shares	Sole	2024-02-14
2023-09-30	$293,334,601	2,250,534	-0.8%	Shares	Sole	2023-11-02
2023-06-30	$340,145,676	2,269,302	+0.1%	Shares	Sole	2023-08-07
2023-03-31	$322,945,183	2,267,555	+1.4%	Shares	Sole	2023-05-15
2022-12-31	$354,422,643	2,237,093	+7.7%	Shares	Sole	2023-02-13
2022-09-30	$232,355,288	2,077,383	+2.4%	Shares	Sole	2022-11-16
2022-06-30	$236,486,021	2,028,182	+21.1%	Shares	Sole	2022-08-10
2022-03-31	$236,101,539	1,675,073	+2.9%	Shares	Sole	2022-05-09
2021-12-31	$267,880,352	1,628,353	-12.4%	Shares	Sole	2022-02-14
2021-09-30	$280,783,842	1,858,388	-6.4%	Shares	Sole	2021-11-10
2021-03-31	$295,834,535	1,985,067	-0.2%	Shares	Sole	2021-05-14
2020-12-31	$202,352,693	1,989,702	+4.2%	Shares	Sole	2021-02-16
2020-09-30	$130,585,422	1,909,702	-1.6%	Shares	Sole	2020-11-16
2020-06-30	$144,769,796	1,941,655	-0.1%	Shares	Sole	2020-08-12
2020-03-31	$114,995,600	1,944,464	—	Shares	Sole	2020-05-12
No 13F history on record for this holder in this stock.