Acadian Asset Management’s AtriCure ATRC Stock Holding History

Acadian Asset Management’s Portfolio ATRC Stock Details ATRC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$4.51M	Buy	161,394 +72,542	+82%	+$2.04M	0.01%	835
2026 Q1	$2.53M	Buy	88,852 +5,969	+7%	+$204K	﹤0.01%	894
2025 Q4	$3.27M	Sell	82,883 -36,274	-30%	-$1.33M	0.01%	770
2025 Q3	$4.19M	Sell	119,157 -85,266	-42%	-$2.94M	0.01%	697
2025 Q2	$6.69M	Buy	204,423 +8,841	+5%	+$287K	0.01%	512
2025 Q1	$6.3M	Buy	195,582 +188,572	+2,690%	+$7M	0.02%	435
2024 Q4	$213K	Buy	+7,010	New	+$225K	﹤0.01%	1252
2024 Q1	–	Sell	-15,235	Closed	-$542K	–	1566
2023 Q4	$542K	Buy	15,235 +6,358	+72%	+$236K	﹤0.01%	1013
2023 Q3	$387K	Buy	8,877 +1,525	+21%	+$74.4K	﹤0.01%	1069
2023 Q2	$362K	Buy	+7,352	New	+$339K	﹤0.01%	1134
2019 Q3	–	Sell	-4,623	Closed	-$138K	–	1872
2019 Q2	$138K	Buy	4,623 +2,321	+101%	+$67.8K	﹤0.01%	1314
2019 Q1	$62K	Buy	+2,302	New	+$69.9K	﹤0.01%	1628

Other funds holding ATRC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $13.8B AUM 163.97% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

NAMI

Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Acadian Asset Management's ATRC Position: Q2 2026 in Review

Acadian Asset Management increased its AtriCure (ATRC) stake by 82% in Q2 2026, buying an estimated $2.04M and bringing the position to 161,394 shares worth $4.51M. The position accounts for 0.01% of the portfolio, ranked #835.

Acadian Asset Management first reported a position in ATRC in Q1 2019 and has held it in 12 quarters since. The position peaked at $6.69M in Q2 2025. 251 funds tracked by Wall St. Rank hold ATRC as of Q2 2026.

Acadian Asset Management held 161,394 shares of AtriCure worth $4.51M as of Q2 2026.
Acadian Asset Management bought 72,542 AtriCure shares in Q2 2026, an estimated $2.04M.
AtriCure made up 0.01% of Acadian Asset Management's portfolio in Q2 2026, its #835 holding.
Acadian Asset Management first reported a position in AtriCure in Q1 2019 and has held it in 12 quarters since.
Acadian Asset Management's AtriCure position peaked at $6.69M in Q2 2025.
251 funds tracked by Wall St. Rank held AtriCure as of Q2 2026.

Based on Acadian Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.