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Winton Group’s AtriCure ATRC Stock Holding History

Winton Group’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 		$1M Buy
+35,800
New +$1.01M 0.03% 509
2020
Q2 		– Sell
-21,743
Closed -$730K – 1444
2020
Q1 		$730K Sell
21,743
-271
-1% -$9.74K 0.02% 910
2019
Q4 		$716K Buy
+22,014
New +$626K 0.01% 1143
2019
Q2 		– Sell
-9,083
Closed -$243K – 1123
2019
Q1 		$243K Buy
+9,083
New +$276K ﹤0.01% 886

Other funds holding ATRC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Portfolio Management
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
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Winton Group's ATRC Position: Q2 2026 in Review

Winton Group opened a new position in AtriCure (ATRC) in Q2 2026: 35,800 shares worth $1M. The stake represents 0.03% of the portfolio and ranks #509 among its holdings. This is a return to the name: Winton Group previously reported a position in ATRC as recently as Q1 2020.

Winton Group first reported a position in ATRC in Q1 2019 and has held it in 4 quarters since. 251 funds tracked by Wall St. Rank hold ATRC as of Q2 2026.

  • Winton Group held 35,800 shares of AtriCure worth $1M as of Q2 2026.
  • AtriCure was a new Winton Group position in Q2 2026.
  • AtriCure made up 0.03% of Winton Group's portfolio in Q2 2026, its #509 holding.
  • Winton Group first reported a position in AtriCure in Q1 2019 and has held it in 4 quarters since.
  • 251 funds tracked by Wall St. Rank held AtriCure as of Q2 2026.

Based on Winton Group's 13F filing for Q2 2026, filed 7 Aug 2026.