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TWO SIGMA INVESTMENTS, LP

Position in ATRC — AtriCure, Inc.

CIK 1179392 NEW YORK, NY

Position in ATRC

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$14,711,744
-$6,714,371 QoQ
Shares Held
525,795
-30.0% QoQ
Ownership
1.03%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#28
of 250 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority Sole 98% Shared 0% None 2%

Common Shares in ATRC Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

TWO SIGMA INVESTMENTS, LP holds $1,061,546,505 across 25 Medical Instruments & Supplies names. ATRC ranks #7 (1.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 ATRC
AtriCure, Inc.
This page
525,795 $14,711,744

All Filings in ATRC

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,711,744 525,795
2026-03-31 $21,426,115 751,003
2025-12-31 $15,052,540 380,499
2025-09-30 $15,963,843 452,875
2025-06-30 $13,498,389 411,913
2025-03-31 $21,547,260 667,925
2024-12-31 $18,672,037 610,996
2024-09-30 $20,126,663 717,784
2024-06-30 $14,641,793 643,030
2024-03-31 $6,880,365 226,179
2023-12-31 $6,878,783 192,737
2023-09-30 $9,519,097 217,331
2023-06-30 $9,897,716 200,521
2023-03-31 $9,870,322 238,126
2022-12-31 $3,814,816 85,958
2022-09-30 $4,354,527 111,369
2022-06-30 $3,171,716 77,624
2021-09-30 $4,609,774 66,280
2021-06-30 $5,207,776 65,647
2021-03-31 $229,320 3,500
2020-06-30 $5,236,270 116,491
2020-03-31 $5,596,261 166,605