Vault-13

ATRICURE INC ATRC

COM · Common Stock · CUSIP 04963C209 · ISIN US04963C2098

Company in Sharonville, United States

214 institutional holders
44,630,62544.6m shares reported held*
96.0% of all shares outstanding*
$1.7bnreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($864.0k this quarter). Holder counts are more reliable. Shares outstanding: 46.5m as of 2022-10-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $39.06. Options: 4 managers hold calls ($906.0k notional), 2 hold puts ($82.0k).

Biggest calls

GROUP ONE TRADING LLC — $508.0k1.3k shares
CITADEL ADVISORS LLC — $293.0k7.5k shares
SIMPLEX TRADING, LLC — $105.0k2.7k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Biggest puts

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution +7.6 pts · filed 2026-10-05 15.4% +7.6 pts 7.8m≈ $219.3m 2026-10-05
WELLINGTON MANAGEMENT GROUP LLP 13G · institution -1.2 pts · filed 2026-05-15 6.8% -1.2 pts 3.4m≈ $94.6m 2026-05-15
Hood River Capital Management LLC 13G · institution +0.2 pts · filed 2026-02-17 6.2% +0.2 pts 3.1m≈ $86.6m 2026-02-17
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 5.5% new 2.7m≈ $76.8m 2026-04-28
ALLIANCEBERNSTEIN L.P. 13G · institution filed 2026-08-14 5.5% 2.8m≈ $77.5m 2026-08-14
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 5.1% new 2.5m≈ $70.9m 2026-04-29

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), MACQUARIE GROUP LTD (4.6%, 2025-11-13)

Insider purchases and sales in Q3 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 3 sellingQ1 22: 0 buyingQ1 22: 1 sellingQ1 22Q2 22: 0 buyingQ2 22: 1 sellingQ3 22: 0 buyingQ3 22: 1 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—3$915.6k—
Q1 20220—1$786.5k—
Q2 20220—1$154.1k—
Q3 20220—1$229.2k—
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-15 Doraiswamy Vinayak Chief Scientific Officer Sold 4,983 $45.99 $229.2k5.0k shares -20%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 4,294,4634.3m $167.9m $167.9m 0.00% —
2 ALLIANCEBERNSTEIN L.P. 0.08% of their portfolio NASHVILLE, TN 4,048,8234.0m $158.3m $158.3m 0.08% —
3 BlackRock Inc. 0.00% of their portfolio New York, NY 3,583,5453.6m $140.1m $140.1m 0.00% —
4 Invesco Ltd. 0.04% of their portfolio ATLANTA, GA 3,205,5943.2m $125.3m $125.3m 0.04% —
5 FRED ALGER MANAGEMENT, LLC 0.46% of their portfolio NEW YORK, NY 2,327,4752.3m $91.0m $91.0m 0.46% —
6 Champlain Investment Partners, LLC 0.54% of their portfolio BURLINGTON, VT 2,010,7402.0m $78.6m $78.6m 0.54% —
7 First Light Asset Management, LLC 5.91% of their portfolio Edina, MN 1,494,6551.5m $58.4m $58.4m 5.91% —
8 MACQUARIE GROUP LTD 0.07% of their portfolio Sydney, NSW 2000, C3 1,362,3661.4m $53.3m $53.3m 0.07% —
9 T. Rowe Price Investment Management, Inc. 0.04% of their portfolio BALTIMORE, MD 1,206,6461.2m $47.2m $47.2m 0.04% —
10 CREDIT SUISSE AG/ 0.05% of their portfolio ZURICH, V8 1,118,8301.1m $43.7m $43.7m 0.05% —
11 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,051,1881.1m $41.1m $41.1m 0.00% —
12 TimesSquare Capital Management, LLC 0.52% of their portfolio NEW YORK, NY 964,530964.5k $37.7m $37.7m 0.52% —
13 LOOMIS SAYLES & CO L P 0.07% of their portfolio BOSTON, MA 909,381909.4k $35.6m $35.6m 0.07% —
14 GW&K Investment Management, LLC 0.38% of their portfolio BOSTON, MA 879,541879.5k $34.4m $34.4m 0.38% —
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 834,606834.6k $32.6m $32.6m 0.00% —
16 Fiera Capital Corp 0.09% of their portfolio MONTREAL, A8 699,677699.7k $25.0m $25.0m 0.09% —
17 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 696,112696.1k $27.2m $27.2m 0.01% —
18 Bellevue Group AG 0.36% of their portfolio ZURICH, V8 642,447642.4k $25.1m $25.1m 0.36% —
19 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 609,805609.8k $23.8m $23.8m 0.01% —
20 Polar Capital Holdings Plc 0.14% of their portfolio London, X0 573,345573.3k $22.4m $22.4m 0.14% —
21 NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio NEW YORK, NY 542,486542.5k $21.2m $21.2m 0.02% —
22 BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.08% of their portfolio Paris, I0 499,804499.8k $19.5m $19.5m 0.08% —
23 Nuveen Asset Management, LLC 0.01% of their portfolio CHICAGO, IL 496,726496.7k $19.4m $19.4m 0.01% —
24 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 469,456469.5k $18.4m $18.4m 0.00% —
25 WASATCH ADVISORS LP 0.12% of their portfolio SALT LAKE CITY, UT 439,025439.0k $17.2m $17.2m 0.12% —
26 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 432,080432.1k $16.9m $16.9m 0.00% —
27 EMERALD ADVISERS, LLC 0.86% of their portfolio LEOLA, PA 428,631428.6k $16.8m $16.8m 0.86% —
28 Granite Investment Partners, LLC 0.69% of their portfolio EL SEGUNDO, CA 407,191407.2k $15.9m $15.9m 0.69% —
29 NORGES BANK 0.00% of their portfolio OSLO, Q8 351,988352.0k $13.8m $13.8m 0.00% —
30 EMERALD MUTUAL FUND ADVISERS TRUST 0.86% of their portfolio LEOLA, PA 349,080349.1k $13.6m $13.6m 0.86% —
31 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 335,202335.2k $13.1m $13.1m 0.00% —
32 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 304,691304.7k $11.9m $11.9m 0.00% —
33 EAGLE ASSET MANAGEMENT INC 0.07% of their portfolio ST PETERSBURG, FL 289,615289.6k $11.3m $11.3m 0.07% —
34 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 287,351287.4k $11.2m $11.2m 0.00% —
35 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio NEW YORK, NY 272,974273.0k $10.7m $10.7m 0.01% —
36 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 263,946263.9k $10.3m $10.3m 0.01% —
37 SECTORAL ASSET MANAGEMENT INC 1.74% of their portfolio MONTREAL, A8 226,532226.5k $8.9m $8.9m 1.74% —
38 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.07% of their portfolio NEW YORK, NY 217,330217.3k $8.5m $8.5m 0.07% —
39 PEREGRINE CAPITAL MANAGEMENT LLC 0.26% of their portfolio MINNEAPOLIS, MN 207,224207.2k $8.1m $8.1m 0.26% —
40 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 193,457193.5k $7.6m $7.6m 0.01% —
41 WCM INVESTMENT MANAGEMENT, LLC 0.03% of their portfolio LAGUNA BEACH, CA 192,247192.2k $7.6m $7.6m 0.03% —
42 Granahan Investment Management, LLC 0.23% of their portfolio WALTHAM, MA 181,602181.6k $7.1m $7.1m 0.23% —
43 NICHOLAS COMPANY, INC. 0.16% of their portfolio MILWAUKEE, WI 175,040175.0k $6.8m $6.8m 0.16% —
44 Amundi 0.00% of their portfolio Paris, I0 158,475158.5k $6.4m $6.4m 0.00% —
45 PURA VIDA INVESTMENTS, LLC 0.90% of their portfolio NEW YORK, NY 152,834152.8k $6.0m $6.0m 0.90% —
46 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 146,518146.5k $5.7m $5.7m 0.00% —
47 Driehaus Capital Management LLC 0.08% of their portfolio Chicago, IL 131,955132.0k $5.2m $5.2m 0.08% —
48 THORNBURG INVESTMENT MANAGEMENT INC 0.09% of their portfolio SANTA FE, NM 126,926126.9k $5.0m $5.0m 0.09% —
49 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 115,598115.6k $4.5m $4.5m 0.01% —
50 TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio NEW YORK, NY 111,369111.4k $4.4m $4.4m 0.02% —
51 RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio NEW YORK, NY 109,800109.8k $4.3m $4.3m 0.01% —
52 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 108,004108.0k $4.2m $4.2m 0.00% —
53 Man Group plc 0.02% of their portfolio LONDON, X0 107,233107.2k $4.2m $4.2m 0.02% —
54 Swiss National Bank 0.00% of their portfolio ZURICH, V8 104,300104.3k $4.1m $4.1m 0.00% —
55 ROYCE & ASSOCIATES LP 0.04% of their portfolio New York, NY 100,982101.0k $3.9m $3.9m 0.04% —
56 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 99,79499.8k $3.9m $3.9m 0.01% —
57 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 92,65092.7k $3.6m $3.6m 0.00% —
58 PUTNAM INVESTMENTS LLC 0.01% of their portfolio BOSTON, MA 89,81589.8k $3.5m $3.5m 0.01% —
59 CONGRESS ASSET MANAGEMENT CO 0.04% of their portfolio BOSTON, MA 88,80288.8k $3.5m $3.5m 0.04% —
60 PARADIGM CAPITAL MANAGEMENT INC/NY 0.25% of their portfolio ALBANY, NY 87,20087.2k $3.4m $3.4m 0.25% —
61 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 86,32686.3k $3.4m $3.4m 0.00% —
62 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 85,33785.3k $3.3m $3.3m 0.00% —
63 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 0.06% of their portfolio Stamford, CT 85,27985.3k $3.3m $3.3m 0.06% —
64 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 84,41784.4k $3.3m $3.3m 0.00% —
65 Orion Porfolio Solutions, LLC 0.06% of their portfolio OMAHA, NE 72,07872.1k $2.8m $2.8m 0.06% —
66 DAFNA Capital Management LLC 0.76% of their portfolio LOS ANGELES, CA 72,02972.0k $2.8m $2.8m 0.76% —
67 Bridgewater Associates, LP 0.01% of their portfolio Westport, CT 71,86271.9k $2.8m $2.8m 0.01% —
68 Tamarack Advisers, LP 1.56% of their portfolio CARLSBAD, CA 67,50067.5k $2.6m $2.6m 1.56% —
69 PANAGORA ASSET MANAGEMENT INC 0.02% of their portfolio BOSTON, MA 67,34767.3k $2.6m $2.6m 0.02% —
70 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 64,72464.7k $2.5m $2.5m 0.00% —
71 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 62,87862.9k $2.5m $2.5m 0.00% —
72 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 60,53160.5k $2.4m $2.4m 0.00% —
73 OAK RIDGE INVESTMENTS LLC 0.36% of their portfolio Chicago, IL 60,29960.3k $2.4m $2.4m 0.36% —
74 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 55,84155.8k $2.2m $2.2m 0.00% —
75 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 54,64054.6k $2.1m $2.1m 0.00% —
76 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 54,00054.0k $2.1m $2.1m 0.01% —
77 State of New Jersey Common Pension Fund D 0.01% of their portfolio TRENTON, NJ 52,02052.0k $2.0m $2.0m 0.01% —
78 LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.26% of their portfolio Englewood, NJ 50,18950.2k $2.0m $2.0m 0.26% —
79 FMR LLC 0.00% of their portfolio BOSTON, MA 48,39348.4k $1.9m $1.9m 0.00% —
80 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 46,69446.7k $1.8m $1.8m 0.01% —
81 Advisors Capital Management, LLC 0.06% of their portfolio RIDGEWOOD, NJ 45,39645.4k $2.1m $2.1m 0.06% —
82 Allianz Asset Management GmbH 0.00% of their portfolio MUNICH, 2M 45,18745.2k $1.8m $1.8m 0.00% —
83 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 44,22244.2k $1.7m $1.7m 0.00% —
84 KENNEDY CAPITAL MANAGEMENT LLC 0.05% of their portfolio ST LOUIS, MO 40,86240.9k $1.6m $1.6m 0.05% —
85 Legal & General Group Plc 0.00% of their portfolio London, X0 39,56639.6k $1.5m $1.5m 0.00% —
86 ALGERT GLOBAL LLC 0.09% of their portfolio SAN FRANCISCO, CA 39,45939.5k $1.5m $1.5m 0.09% —
87 Millrace Asset Group, Inc. 1.83% of their portfolio BERWYN, PA 37,05137.1k $1.4m $1.4m 1.83% —
88 SIT INVESTMENT ASSOCIATES INC 0.04% of their portfolio Minneapolis, MN 35,02535.0k $1.4m $1.4m 0.04% —
89 PERKINS CAPITAL MANAGEMENT INC 1.50% of their portfolio WAYZATA, MN 34,35034.4k $1.3m $1.3m 1.50% —
90 Ergoteles LLC 0.04% of their portfolio NEW YORK, NY 28,05528.1k $1.1m $1.1m 0.04% —
91 TRUIST FINANCIAL CORP 0.00% of their portfolio CHARLOTTE, NC 26,59726.6k $1.0m $1.0m 0.00% —
92 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 26,48226.5k $1.0m $1.0m 0.00% —
93 J.P. Morgan Private Wealth Advisors LLC 0.00% of their portfolio SAN FRANCISCO, CA 24,81324.8k $970.0k $970.0k 0.00% —
94 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 24,68124.7k $1.1m $1.1m 0.00% —
95 MetLife Investment Management, LLC 0.01% of their portfolio Whippany, NJ 24,14124.1k $943.9k $943.9k 0.01% —
96 B. Metzler seel. Sohn & Co. AG 0.02% of their portfolio FRANKFURT, 2M 22,65822.7k $886.0k $886.0k 0.02% —
97 Larson Financial Group LLC 0.13% of their portfolio ST LOUIS, MO 22,54522.5k $882.0k $882.0k 0.13% —
98 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 21,65521.7k $847.0k $847.0k 0.00% —
99 AMERICAN INTERNATIONAL GROUP, INC. 0.01% of their portfolio New York, NY 21,64421.6k $846.0k $846.0k 0.01% —
100 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 20,64820.6k $807.3k $807.3k 0.00% —