State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s AtriCure ATRC Stock Holding History

State of Wisconsin Investment Board’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
Q1 		$4.77M Buy
167,354
+3,155
+2% +$108K 0.01% 1008
2025
Q4 		$6.5M Sell
164,199
-54,372
-25% -$1.99M 0.01% 893
2025
Q3 		$7.7M Sell
218,571
-5,239
-2% -$181K 0.02% 774
2025
Q2 		$7.33M Sell
223,810
-1,329
-0.6% -$43.2K 0.02% 782
2025
Q1 		$7.26M Buy
225,139
+4,551
+2% +$169K 0.02% 773
2024
Q4 		$6.74M Buy
220,588
+11,017
+5% +$354K 0.02% 823
2024
Q3 		$5.88M Buy
209,571
+4,336
+2% +$107K 0.01% 886
2024
Q2 		$4.67M Sell
205,235
-1,555
-0.8% -$35.9K 0.01% 962
2024
Q1 		$6.29M Sell
206,790
-25,050
-11% -$839K 0.02% 868
2023
Q4 		$8.27M Buy
231,840
+118,358
+104% +$4.4M 0.02% 729
2023
Q3 		$4.97M Sell
113,482
-779
-0.7% -$38K 0.02% 921
2023
Q2 		$5.64M Buy
114,261
+681
+0.6% +$31.4K 0.02% 898
2023
Q1 		$4.71M Buy
113,580
+682
+0.6% +$28.3K 0.01% 991
2022
Q4 		$5.01M Sell
112,898
-2,700
-2% -$113K 0.02% 940
2022
Q3 		$4.52M Sell
115,598
-2,927
-2% -$134K 0.01% 985
2022
Q2 		$4.84M Sell
118,525
-77,075
-39% -$3.65M 0.01% 1009
2022
Q1 		$12.8M Sell
195,600
-4,400
-2% -$285K 0.03% 660
2021
Q4 		$13.9M Buy
200,000
+4,400
+2% +$320K 0.03% 637
2021
Q3 		$13.6M Hold
195,600
– – 0.03% 627
2021
Q2 		$15.5M Hold
195,600
– – 0.03% 550
2021
Q1 		$12.8M Hold
195,600
– – 0.03% 631
2020
Q4 		$10.9M Buy
+195,600
New +$8.46M 0.03% 653

Other funds holding ATRC

AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
HRCM
Hood River Capital Management Palm Beach Gardens, Florida $9.98B AUM 145.42% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $58.4B AUM
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

State of Wisconsin Investment Board's ATRC Position: Q1 2026 in Review

State of Wisconsin Investment Board increased its AtriCure (ATRC) stake by 1.9% in Q1 2026, buying an estimated $108K and bringing the position to 167,354 shares worth $4.77M. The position accounts for 0.01% of the portfolio, ranked #1008.

State of Wisconsin Investment Board first reported a position in ATRC in Q4 2020 and has held it in 22 quarters since. The position peaked at $15.5M in Q2 2021. 223 funds tracked by Wall St. Rank hold ATRC as of Q1 2026.

  • State of Wisconsin Investment Board held 167,354 shares of AtriCure worth $4.77M as of Q1 2026.
  • State of Wisconsin Investment Board bought 3,155 AtriCure shares in Q1 2026, an estimated $108K.
  • AtriCure made up 0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #1008 holding.
  • State of Wisconsin Investment Board first reported a position in AtriCure in Q4 2020 and has held it in 22 quarters since.
  • State of Wisconsin Investment Board's AtriCure position peaked at $15.5M in Q2 2021.
  • 223 funds tracked by Wall St. Rank held AtriCure as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.