Champlain Investment Partners, LLC

Position in ATRC — AtriCure, Inc.

CIK 1315478 BURLINGTON, VT

Back to ATRC Full portfolio

Position in ATRC

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$26,261,104

-$1,444,692 QoQ

Shares Held

938,567

-3.4% QoQ

Ownership

1.85%

of shares outstanding

% of Portfolio

0.67%

of 13F equity value

Holder Rank

#16

of 250 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 94% Shared 0% None 6%

Common Shares in ATRC Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

Champlain Investment Partners, LLC holds $128,696,077 across 4 Medical Instruments & Supplies names. ATRC ranks #4 (20.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RGEN	Repligen Corp	318,955	$43,518,220
2	COO	Cooper Companies, Inc.	431,025	$30,908,802
3	MMSI	Merit Medical Systems Inc	403,922	$28,007,951
4	ATRC	AtriCure, Inc. This page	938,567	$26,261,104

All Filings in ATRC

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27 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$26,261,104	938,567	-3.4%	Shares	Sole	2026-08-12
2026-03-31	$27,705,796	971,111	-17.3%	Shares	Sole	2026-05-13
2025-12-31	$46,427,813	1,173,605	-40.7%	Shares	Sole	2026-02-13
2025-09-30	$69,732,008	1,978,213	-1.9%	Shares	Sole	2025-11-12
2025-06-30	$66,089,028	2,016,754	-5.7%	Shares	Sole	2025-08-12
2025-03-31	$68,970,686	2,137,963	—	Shares	Sole	2025-05-14
2025-03-31	$68,970,686	2,137,963	-15.4%	Shares	Sole	2025-05-14
2024-12-31	$77,274,443	2,528,614	-9.4%	Shares	Sole	2025-02-13
2024-09-30	$78,252,854	2,790,758	+4.3%	Shares	Sole	2024-11-12
2024-06-30	$60,908,497	2,674,945	-0.2%	Shares	Sole	2024-08-14
2024-03-31	$81,556,020	2,681,000	+27.3%	Shares	Sole	2024-05-13
2023-12-31	$75,141,547	2,105,395	+13.7%	Shares	Sole	2024-02-13
2023-09-30	$81,097,452	1,851,540	+2.3%	Shares	Sole	2023-11-13
2023-06-30	$89,360,603	1,810,385	-4.3%	Shares	Sole	2023-08-11
2023-03-31	$78,427,337	1,892,095	-2.5%	Shares	Sole	2023-05-12
2022-12-31	$86,085,661	1,939,740	-3.5%	Shares	Sole	2023-02-13
2022-09-30	$78,619,934	2,010,740	+24.2%	Shares	Sole	2022-11-14
2022-06-30	$66,151,522	1,618,980	+26.9%	Shares	Sole	2022-08-12
2022-03-31	$83,783,099	1,275,820	+4.7%	Shares	Sole	2022-05-12
2021-12-31	$84,725,781	1,218,550	-0.2%	Shares	Sole	2022-02-10
2021-09-30	$84,887,166	1,220,520	-21.8%	Shares	Sole	2021-11-12
2021-06-30	$123,852,772	1,561,235	-28.2%	Shares	Sole	2021-08-12
2021-03-31	$142,515,172	2,175,140	+1.9%	Shares	Sole	2021-05-13
2020-12-31	$118,887,738	2,135,580	+3.2%	Shares	Sole	2021-02-12
2020-09-30	$82,569,858	2,069,420	+24.7%	Shares	Sole	2020-11-13
2020-06-30	$74,582,613	1,659,235	-2.0%	Shares	Sole	2020-08-13
2020-03-31	$56,875,427	1,693,225	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.