Mariner
ATRC icon

Mariner’s AtriCure ATRC Stock Holding History

Mariner’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 		$744K Buy
26,596
+17,951
+208% +$505K ﹤0.01% 2181
2026
Q1 		$247K Buy
+8,645
New +$295K ﹤0.01% 3034
2023
Q4 		– Sell
-4,966
Closed -$217K – 3051
2023
Q3 		$217K Buy
4,966
+89
+2% +$4.34K ﹤0.01% 2431
2023
Q2 		$241K Sell
4,877
-239
-5% -$11K ﹤0.01% 2301
2023
Q1 		$212K Sell
5,116
-599
-10% -$24.9K ﹤0.01% 2377
2022
Q4 		$254K Buy
5,715
+337
+6% +$14.1K ﹤0.01% 2169
2022
Q3 		$210K Buy
+5,378
New +$246K ﹤0.01% 2026

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 $3.37T AUM 44.26% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Mariner's ATRC Position: Q2 2026 in Review

Mariner increased its AtriCure (ATRC) stake by 208% in Q2 2026, buying an estimated $505K and bringing the position to 26,596 shares worth $744K. The position accounts for ﹤0.01% of the portfolio, ranked #2181.

Mariner first reported a position in ATRC in Q3 2022 and has held it in 7 quarters since. 252 funds tracked by Wall St. Rank hold ATRC as of Q2 2026.

  • Mariner held 26,596 shares of AtriCure worth $744K as of Q2 2026.
  • Mariner bought 17,951 AtriCure shares in Q2 2026, an estimated $505K.
  • AtriCure made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2181 holding.
  • Mariner first reported a position in AtriCure in Q3 2022 and has held it in 7 quarters since.
  • 252 funds tracked by Wall St. Rank held AtriCure as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.