CenterBook Partners’s AtriCure ATRC Stock Holding History

CenterBook Partners’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	$239K	Buy	+8,530	New	+$240K	0.01%	657
2024 Q1	–	Sell	-6,055	Closed	-$216K	–	383
2023 Q4	$216K	Sell	6,055 -11,534	-66%	-$429K	0.03%	374
2023 Q3	$770K	Buy	+17,589	New	+$858K	0.1%	272
2023 Q2	–	Sell	-5,193	Closed	-$215K	–	414
2023 Q1	$215K	Sell	5,193 -10,607	-67%	-$440K	0.03%	370
2022 Q4	$701K	Buy	15,800 +8,913	+129%	+$372K	0.12%	246
2022 Q3	$269K	Buy	+6,887	New	+$315K	0.05%	346

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 $3.37T AUM 44.26% 1-Year Est. Return

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

CenterBook Partners's ATRC Position: Q2 2026 in Review

CenterBook Partners opened a new position in AtriCure (ATRC) in Q2 2026: 8,530 shares worth $239K. The stake represents 0.01% of the portfolio and ranks #657 among its holdings. This is a return to the name: CenterBook Partners previously reported a position in ATRC as recently as Q4 2023.

CenterBook Partners first reported a position in ATRC in Q3 2022 and has held it in 6 quarters since. The position peaked at $770K in Q3 2023. 251 funds tracked by Wall St. Rank hold ATRC as of Q2 2026.

CenterBook Partners held 8,530 shares of AtriCure worth $239K as of Q2 2026.
AtriCure was a new CenterBook Partners position in Q2 2026.
AtriCure made up 0.01% of CenterBook Partners's portfolio in Q2 2026, its #657 holding.
CenterBook Partners first reported a position in AtriCure in Q3 2022 and has held it in 6 quarters since.
CenterBook Partners's AtriCure position peaked at $770K in Q3 2023.
251 funds tracked by Wall St. Rank held AtriCure as of Q2 2026.

Based on CenterBook Partners's 13F filing for Q2 2026, filed 11 Aug 2026.