ATRCAtriCure, Inc.

$55.80+53% 1Y

Who owns ATRC

249 institutions reported holding ATRC for 2026Q2, together 107% of the company, more than the 221 a quarter earlier.

249

Institutions reporting a position · as of 2026Q2 · up from 221 the quarter before

Shares held by institutions
52.4M

Shares held by institutions · 107% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.47B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
40%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
52
Positions exited
24
Added to
97
Reduced
57
Top 10 holdersof the company
55%
Shares sold shortsettled Sep 30, 2026
4.8M
Short interestof shares outstanding
9.8%
Days to coverat the average daily volume
2.6
Change in the short positionsince the Sep 15, 2026 count
+13%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q224952.4M$1.47B
2026Q122149.8M$1.46B
2025Q423248.7M$1.93B
2025Q322148.0M$1.69B
2025Q219848.7M$1.60B
2025Q121950.3M$1.62B
2024Q421346.5M$1.42B
2024Q320149.4M$1.39B
2024Q219650.8M$1.16B
2024Q122049.6M$1.51B
2023Q423247.2M$1.68B
2023Q322745.4M$1.99B
2023Q221945.0M$2.22B
2023Q122044.7M$1.85B
2022Q420845.0M$2.02B
2022Q321144.6M$1.74B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC5.8M12%$161M
BlackRock Inc.4.5M9.1%$125M
WELLINGTON MANAGEMENT GROUP LLP3.5M7.1%$98M
Hood River Capital Management LLC2.9M5.9%$81M
ALLIANCEBERNSTEIN L.P.2.8M5.6%$79M
NOMURA HOLDINGS INC1.7M3.5%$49M
GOLDMAN SACHS GROUP INC1.6M3.3%$45M
STATE STREET CORP1.4M2.8%$39M
Marshall Wace LLP1.3M2.7%$37M
GEODE CAPITAL MANAGEMENT LLC1.3M2.7%$37M
Short interest by settlement date, Sep 15, 2025 to Sep 30, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 30, 20264.8M9.8%2.6
Sep 15, 20264.3M8.7%3.6
Aug 31, 20264.1M8.4%5.8
Aug 14, 20263.9M8.0%6.1
Jul 31, 20263.9M7.9%3.7
Jul 15, 20264.9M9.9%5.7
Jun 30, 20264.4M9.1%3.6
Jun 15, 20263.4M7.0%4.9
May 29, 20263.4M6.9%4.0
May 15, 20264.4M9.0%4.5
Apr 30, 20263.9M7.9%4.8
Apr 15, 20263.6M7.4%5.7

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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