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STATE OF WISCONSIN INVESTMENT BOARD

Position in ATRC — AtriCure, Inc.

CIK 854157 MADISON, WI

Position in ATRC

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$4,248,343
-$526,266 QoQ
Shares Held
151,835
-9.3% QoQ
Ownership
0.298%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#55
of 250 holders
Holding Since
Dec 2020
23 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ATRC Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $230,660,619 across 24 Medical Instruments & Supplies names. ATRC ranks #14 (1.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ATRC

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23 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,248,343 151,835
2026-03-31 $4,774,609 167,354
2025-12-31 $6,495,712 164,199
2025-09-30 $7,704,627 218,571
2025-06-30 $7,334,253 223,810
2025-03-31 $7,262,984 225,139
2024-12-31 $6,741,169 220,588
2024-09-30 $5,876,370 209,571
2024-06-30 $4,673,200 205,235
2024-03-31 $6,290,551 206,790
2023-12-31 $8,274,369 231,840
2023-09-30 $4,970,511 113,482
2023-06-30 $5,639,922 114,261
2023-03-31 $4,707,891 113,580
2022-12-31 $5,010,413 112,898
2022-09-30 $4,519,881 115,598
2022-06-30 $4,842,931 118,525
2022-03-31 $12,845,052 195,600
2021-12-31 $13,906,000 200,000
2021-09-30 $13,603,980 195,600
2021-06-30 $15,516,948 195,600
2021-03-31 $12,815,712 195,600
2020-12-31 $10,889,052 195,600