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MILLENNIUM MANAGEMENT LLC

Position in ATRC — AtriCure, Inc.

CIK 1273087 NEW YORK, NY

Position in ATRC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$5,132,147
-$1,347,583 QoQ
Shares Held
179,886
+9.8% QoQ
Ownership
0.354%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ATRC Over Time

Shares Held

Position Value (USD)

Derivatives in ATRC

reported options exposure · as of Mar 31, 2024
CallValue
$1,825,200
CallShares
60,000
PutValue
$304,200
PutShares
10,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

MILLENNIUM MANAGEMENT LLC holds $757,462,502 across 31 Medical Instruments & Supplies names.

# Ticker Company Shares Value (USD) Open

All Filings in ATRC

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33 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $5,132,147 179,886
2025-12-31 $6,479,730 163,795
2025-09-30 $12,452,415 353,260
2025-06-30 $11,799,330 360,065
2025-03-31 $20,108,399 623,323
2024-12-31 $10,629,868 347,836
2024-09-30 $9,930,225 354,145
2024-06-30 $21,694,459 952,765
2024-03-31 $1,825,200 60,000
2024-03-31 $304,200 10,000
2024-03-31 $10,943,351 359,742
2023-12-31 $15,745,642 441,178
2023-12-31 $2,498,300 70,000
2023-09-30 $22,572,987 515,365
2023-06-30 $68,302,985 1,383,772
2023-03-31 $49,471,196 1,193,515
2022-12-31 $37,331,257 841,173
2022-12-31 $1,331,400 30,000
2022-12-31 $443,800 10,000
2022-09-30 $3,622,615 92,650
2022-06-30 $10,204,253 249,737
2022-03-31 $49,307,925 750,844
2021-12-31 $68,846,520 990,170
2021-09-30 $695,500 10,000
2021-09-30 $23,251,190 334,309
2021-09-30 $695,500 10,000
2021-06-30 $2,605,831 32,848
2021-06-30 $793,300 10,000
2021-03-31 $655,200 10,000
2020-12-31 $835,050 15,000
2020-06-30 $224,750 5,000
2020-06-30 $339,552 7,554
2020-03-31 $14,550,952 433,193