On this page, we present all of the funds holding ATRC from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding ATRC, with a link to that fund's top holdings. The next columns indicate the amount of ATRC stock held by each of the funds holding ATRC, followed by the ATRC position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 231 funds holding ATRC within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Vanguard Group Inc.. For more details on the positions held by Vanguard Group Inc. (or by any of the other funds holding ATRC), click the fund name in the "Holder" column of the funds-holding-ATRC table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Vanguard Group Inc.	4,766,029	$170,100	12/31/2023
ATRC	4,766,029	$170,100	12/31/2023
BlackRock Inc.	4,193,887	$149,680	12/31/2023
ATRC	4,193,887	$149,680	12/31/2023
Alliancebernstein L.P.	3,394,036	$121,133	12/31/2023
ATRC	3,394,036	$121,133	12/31/2023
Champlain Investment Partners LLC	2,105,395	$75,142	12/31/2023
ATRC	2,105,395	$75,142	12/31/2023
Macquarie Group Ltd.	1,449,726	$51,741	12/31/2023
ATRC	1,449,726	$51,741	12/31/2023
First Light Asset Management LLC	1,349,443	$48,162	12/31/2023
ATRC	1,349,443	$48,162	12/31/2023
Wellington Management Group LLP	1,329,457	$47,448	12/31/2023
ATRC	1,329,457	$47,448	12/31/2023
State Street Corp	1,204,415	$42,986	12/31/2023
ATRC	1,204,415	$42,986	12/31/2023
Invesco Ltd.	1,162,050	$41,474	12/31/2023
ATRC	1,162,050	$41,474	12/31/2023
Fred Alger Management LLC	1,154,058	$41,188	12/31/2023
ATRC	1,154,058	$41,188	12/31/2023
Geode Capital Management LLC	1,032,524	$36,855	12/31/2023
ATRC	1,032,524	$36,855	12/31/2023
Nuveen Asset Management LLC	1,022,678	$36,499	12/31/2023
ATRC	1,022,678	$36,499	12/31/2023
Dimensional Fund Advisors LP	1,001,161	$35,734	12/31/2023
ATRC	1,001,161	$35,734	12/31/2023
Credit Suisse AG	990,381	$35,347	12/31/2023
ATRC	990,381	$35,347	12/31/2023
TimesSquare Capital Management LLC	976,110	$34,837	12/31/2023
ATRC	976,110	$34,837	12/31/2023
Fiera Capital Corp	881,826	$31,472	12/31/2023
ATRC	881,826	$31,472	12/31/2023
Hood River Capital Management LLC	841,102	$30,019	12/31/2023
ATRC	841,102	$30,019	12/31/2023
Loomis Sayles & Co. L P	834,130	$29,770	12/31/2023
ATRC	834,130	$29,770	12/31/2023
Bellevue Group AG	817,883	$29,190	12/31/2023
ATRC	817,883	$29,190	12/31/2023
GW&K Investment Management LLC	805,109	$28,734	12/31/2023
ATRC	805,109	$28,734	12/31/2023
Neuberger Berman Group LLC	759,221	$27,130	12/31/2023
ATRC	759,221	$27,130	12/31/2023
Wasatch Advisors Inc.	720,677	$21,923	03/31/2024
ATRC	720,677	$21,923	03/31/2024
Millennium Management LLC		$18,244	12/31/2023
ATRC	441,178	$15,746	12/31/2023
Call	70,000	$2,498	12/31/2023
Morgan Stanley	494,778	$17,659	12/31/2023
ATRC	494,778	$17,659	12/31/2023
Northern Trust Corp	465,162	$16,602	12/31/2023
ATRC	465,162	$16,602	12/31/2023
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	456,762	$16,302	12/31/2023
ATRC	456,762	$16,302	12/31/2023
Emerald Advisers LLC	446,280	$15,928	12/31/2023
ATRC	446,280	$15,928	12/31/2023
Marshall Wace LLP	435,413	$15,540	12/31/2023
ATRC	435,413	$15,540	12/31/2023
Soleus Capital Management L.P.	392,195	$13,997	12/31/2023
ATRC	392,195	$13,997	12/31/2023
Assenagon Asset Management S.A.	444,801	$13,531	03/31/2024
ATRC	444,801	$13,531	03/31/2024
Price T Rowe Associates Inc. MD	373,761	$13,340	12/31/2023
ATRC	373,761	$13,340	12/31/2023
Charles Schwab Investment Management Inc.	367,151	$13,104	12/31/2023
ATRC	367,151	$13,104	12/31/2023
Emerald Mutual Fund Advisers Trust	362,359	$12,933	12/31/2023
ATRC	362,359	$12,933	12/31/2023
Bank of America Corp DE	361,792	$12,912	12/31/2023
ATRC	361,792	$12,912	12/31/2023
JPMorgan Chase & Co.	356,233	$12,714	12/31/2023
ATRC	356,233	$12,714	12/31/2023
Goldman Sachs Group Inc.	355,601	$12,691	12/31/2023
ATRC	355,601	$12,691	12/31/2023
Citadel Advisors LLC		$11,258	12/31/2023
ATRC	305,849	$10,916	12/31/2023
Call	11,300	$403	12/31/2023
Put	1,700	$61	12/31/2023
Amundi	298,887	$10,204	12/31/2023
ATRC	298,887	$10,204	12/31/2023
UBS Asset Management Americas Inc.	263,015	$9,387	12/31/2023
ATRC	263,015	$9,387	12/31/2023
Bank of New York Mellon Corp	305,984	$9,308	03/31/2024
ATRC	305,984	$9,308	03/31/2024
Norges Bank	259,281	$9,254	12/31/2023
ATRC	259,281	$9,254	12/31/2023
New York State Common Retirement Fund	257,901	$9,204	12/31/2023
ATRC	257,901	$9,204	12/31/2023
Silvercrest Asset Management Group LLC	257,865	$9,203	12/31/2023
ATRC	257,865	$9,203	12/31/2023
State of Wisconsin Investment Board	231,840	$8,274	12/31/2023
ATRC	231,840	$8,274	12/31/2023
Grandeur Peak Global Advisors LLC	231,550	$8,264	12/31/2023
ATRC	231,550	$8,264	12/31/2023
Panagora Asset Management Inc.	229,197	$8,180	12/31/2023
ATRC	229,197	$8,180	12/31/2023
Qube Research & Technologies Ltd	225,420	$8,045	12/31/2023
ATRC	225,420	$8,045	12/31/2023
Cubist Systematic Strategies LLC	213,401	$7,616	12/31/2023
ATRC	213,401	$7,616	12/31/2023
Two Sigma Investments LP	192,737	$6,879	12/31/2023
ATRC	192,737	$6,879	12/31/2023
WCM Investment Management LLC	222,843	$6,779	03/31/2024
ATRC	222,843	$6,779	03/31/2024
Two Sigma Advisers LP	182,400	$6,510	12/31/2023
ATRC	182,400	$6,510	12/31/2023
Nicholas Company Inc.	170,820	$6,097	12/31/2023
ATRC	170,820	$6,097	12/31/2023
Squarepoint Ops LLC	160,154	$5,716	12/31/2023
ATRC	160,154	$5,716	12/31/2023
Voloridge Investment Management LLC	160,099	$5,714	12/31/2023
ATRC	160,099	$5,714	12/31/2023
Wells Fargo & Company MN	152,971	$5,460	12/31/2023
ATRC	152,971	$5,460	12/31/2023
Deutsche Bank AG	145,678	$5,199	12/31/2023
ATRC	145,678	$5,199	12/31/2023
Eagle Asset Management Inc.	130,828	$4,669	12/31/2023
ATRC	130,828	$4,669	12/31/2023
DAFNA Capital Management LLC	125,529	$4,480	12/31/2023
ATRC	125,529	$4,480	12/31/2023
Knights of Columbus Asset Advisors LLC	123,540	$4,409	12/31/2023
ATRC	123,540	$4,409	12/31/2023
Envestnet Asset Management Inc.	116,314	$4,151	12/31/2023
ATRC	116,314	$4,151	12/31/2023
Walleye Capital LLC	113,081	$4,036	12/31/2023
ATRC	113,081	$4,036	12/31/2023
D. E. Shaw & Co. Inc.	109,016	$3,891	12/31/2023
ATRC	109,016	$3,891	12/31/2023
Kennedy Capital Management Inc.	105,441	$3,763	12/31/2023
ATRC	105,441	$3,763	12/31/2023
Thornburg Investment Management Inc.	103,215	$3,684	12/31/2023
ATRC	103,215	$3,684	12/31/2023
BNP Paribas Arbitrage SA	100,842	$3,599	12/31/2023
ATRC	100,842	$3,599	12/31/2023
Trexquant Investment LP	97,193	$3,469	12/31/2023
ATRC	97,193	$3,469	12/31/2023
Royce & Associates LP	97,182	$3,468	12/31/2023
ATRC	97,182	$3,468	12/31/2023
Royal Bank of Canada	96,945	$3,460	12/31/2023
ATRC	96,945	$3,460	12/31/2023
Paradigm Capital Management Inc. NY	94,850	$3,385	12/31/2023
ATRC	94,850	$3,385	12/31/2023
Renaissance Technologies LLC	94,300	$3,366	12/31/2023
ATRC	94,300	$3,366	12/31/2023
Swiss National Bank	93,300	$3,330	12/31/2023
ATRC	93,300	$3,330	12/31/2023
Bridger Management LLC	87,100	$3,109	12/31/2023
ATRC	87,100	$3,109	12/31/2023
Barclays PLC	81,295	$2,901	12/31/2023
ATRC	81,295	$2,901	12/31/2023
FMR LLC	75,886	$2,708	12/31/2023
ATRC	75,886	$2,708	12/31/2023
ExodusPoint Capital Management LP	75,855	$2,707	12/31/2023
ATRC	75,855	$2,707	12/31/2023
Jane Street Group LLC	72,024	$2,571	12/31/2023
ATRC	72,024	$2,571	12/31/2023
Oberweis Asset Management Inc.	69,100	$2,466	12/31/2023
ATRC	69,100	$2,466	12/31/2023
Rhumbline Advisers	68,763	$2,454	12/31/2023
ATRC	68,763	$2,454	12/31/2023
State of New Jersey Common Pension Fund D	68,188	$2,434	12/31/2023
ATRC	68,188	$2,434	12/31/2023
UBS Group AG	66,561	$2,376	12/31/2023
ATRC	66,561	$2,376	12/31/2023
Advisors Capital Management LLC	64,153	$2,290	12/31/2023
ATRC	64,153	$2,290	12/31/2023
Engineers Gate Manager LP	63,533	$2,267	12/31/2023
ATRC	63,533	$2,267	12/31/2023
Ameriprise Financial Inc.	58,208	$2,078	12/31/2023
ATRC	58,208	$2,078	12/31/2023
Healthcare of Ontario Pension Plan Trust Fund	56,849	$2,029	12/31/2023
ATRC	56,849	$2,029	12/31/2023
Orion Portfolio Solutions LLC	53,761	$1,883	12/31/2023
ATRC	53,761	$1,883	12/31/2023
Susquehanna International Group LLP		$1,821	12/31/2023
ATRC	45,114	$1,610	12/31/2023
Call	5,900	$211	12/31/2023
Jump Financial LLC	50,504	$1,802	12/31/2023
ATRC	50,504	$1,802	12/31/2023
California State Teachers Retirement System	49,832	$1,779	12/31/2023
ATRC	49,832	$1,779	12/31/2023
Canada Pension Plan Investment Board	47,900	$1,710	12/31/2023
ATRC	47,900	$1,710	12/31/2023
Sit Investment Associates Inc.	46,725	$1,668	12/31/2023
ATRC	46,725	$1,668	12/31/2023
Decheng Capital LLC	46,259	$1,651	12/31/2023
ATRC	46,259	$1,651	12/31/2023
Legal & General Group Plc	44,775	$1,598	12/31/2023
ATRC	44,775	$1,598	12/31/2023
Algert Global LLC	44,740	$1,597	12/31/2023
ATRC	44,740	$1,597	12/31/2023
Sei Investments Co.	42,705	$1,524	12/31/2023
ATRC	42,705	$1,524	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	36,347	$1,297	12/31/2023
ATRC	36,347	$1,297	12/31/2023
Allianz Asset Management GmbH	34,081	$1,216	12/31/2023
ATRC	34,081	$1,216	12/31/2023
Putnam Investments LLC	33,708	$1,203	12/31/2023
ATRC	33,708	$1,203	12/31/2023
Alberta Investment Management Corp	33,171	$1,184	12/31/2023
ATRC	33,171	$1,184	12/31/2023
Prelude Capital Management LLC	32,464	$1,159	12/31/2023
ATRC	32,464	$1,159	12/31/2023
Great Lakes Advisors LLC	32,329	$1,154	12/31/2023
ATRC	32,329	$1,154	12/31/2023
Semanteon Capital Management LP	32,305	$1,153	12/31/2023
ATRC	32,305	$1,153	12/31/2023
B. Metzler seel. Sohn & Co. AG	31,366	$1,119	12/31/2023
ATRC	31,366	$1,119	12/31/2023
Quantbot Technologies LP	28,971	$1,034	12/31/2023
ATRC	28,971	$1,034	12/31/2023
Diversified Trust Co	33,422	$1,017	03/31/2024
ATRC	33,422	$1,017	03/31/2024
Perkins Capital Management Inc.	27,850	$994	12/31/2023
ATRC	27,850	$994	12/31/2023
Bessemer Group Inc.	27,380	$977	12/31/2023
ATRC	27,380	$977	12/31/2023
Tudor Investment Corp Et Al	27,247	$972	12/31/2023
ATRC	27,247	$972	12/31/2023
Great West Life Assurance Co. Can	27,203	$963	12/31/2023
ATRC	27,203	$963	12/31/2023
Graham Capital Management L.P.	26,769	$955	12/31/2023
ATRC	26,769	$955	12/31/2023
Point72 Middle East FZE	26,086	$931	12/31/2023
ATRC	26,086	$931	12/31/2023
First Trust Advisors LP	25,981	$927	12/31/2023
ATRC	25,981	$927	12/31/2023
HRT Financial LP	25,857	$922	12/31/2023
ATRC	25,857	$922	12/31/2023
MetLife Investment Management LLC	24,531	$876	12/31/2023
ATRC	24,531	$876	12/31/2023
Edgestream Partners L.P.	24,178	$863	12/31/2023
ATRC	24,178	$863	12/31/2023
Hsbc Holdings PLC	23,918	$857	12/31/2023
ATRC	23,918	$857	12/31/2023
The Manufacturers Life Insurance Company	23,677	$845	12/31/2023
ATRC	23,677	$845	12/31/2023
Los Angeles Capital Management & Equity Research Inc.	27,693	$842	03/31/2024
ATRC	27,693	$842	03/31/2024
American International Group Inc.	23,157	$826	12/31/2023
ATRC	23,157	$826	12/31/2023
Janus Henderson Group PLC	23,121	$825	12/31/2023
ATRC	23,121	$825	12/31/2023
Campbell & CO Investment Adviser LLC	22,724	$811	12/31/2023
ATRC	22,724	$811	12/31/2023
Harbor Capital Advisors Inc.	22,290	$796	12/31/2023
ATRC	22,290	$796	12/31/2023
GSA Capital Partners LLP	21,619	$772	12/31/2023
ATRC	21,619	$772	12/31/2023
Bank of Montreal Can	20,610	$771	12/31/2023
ATRC	20,610	$771	12/31/2023
Ensign Peak Advisors Inc	21,550	$769	12/31/2023
ATRC	21,550	$769	12/31/2023
Mirae Asset Global Investments Co. Ltd.	21,237	$758	12/31/2023
ATRC	21,237	$758	12/31/2023
Strs Ohio	21,200	$756	12/31/2023
ATRC	21,200	$756	12/31/2023
Bridgewater Associates LP	20,430	$729	12/31/2023
ATRC	20,430	$729	12/31/2023
Franklin Resources Inc.	20,262	$723	12/31/2023
ATRC	20,262	$723	12/31/2023
Stifel Financial Corp	20,207	$721	12/31/2023
ATRC	20,207	$721	12/31/2023
Teacher Retirement System of Texas	20,051	$716	12/31/2023
ATRC	20,051	$716	12/31/2023
LPL Financial LLC	19,800	$707	12/31/2023
ATRC	19,800	$707	12/31/2023
Townsquare Capital LLC	19,327	$690	12/31/2023
ATRC	19,327	$690	12/31/2023
Susquehanna Portfolio Strategies LLC	19,050	$680	12/31/2023
ATRC	19,050	$680	12/31/2023
Voya Investment Management LLC	18,682	$667	12/31/2023
ATRC	18,682	$667	12/31/2023
Larson Financial Group LLC	18,633	$665	12/31/2023
ATRC	18,633	$665	12/31/2023
Marks Group Wealth Management Inc	17,999	$642	12/31/2023
ATRC	17,999	$642	12/31/2023
Skandinaviska Enskilda Banken AB publ	17,500	$625	12/31/2023
ATRC	17,500	$625	12/31/2023
Assetmark Inc.	17,497	$624	12/31/2023
ATRC	17,497	$624	12/31/2023
Prudential Financial Inc.	16,930	$604	12/31/2023
ATRC	16,930	$604	12/31/2023
Captrust Financial Advisors	16,287	$581	12/31/2023
ATRC	16,287	$581	12/31/2023
Acadian Asset Management LLC	15,235	$542	12/31/2023
ATRC	15,235	$542	12/31/2023
Advisor Group Holdings Inc.	15,160	$541	12/31/2023
ATRC	15,160	$541	12/31/2023
Ronald Blue Trust Inc.	14,445	$516	12/31/2023
ATRC	14,445	$516	12/31/2023
Handelsbanken Fonder AB	13,400	$478	12/31/2023
ATRC	13,400	$478	12/31/2023
State Board of Administration of Florida Retirement System	13,299	$475	12/31/2023
ATRC	13,299	$475	12/31/2023
AQR Capital Management LLC	13,270	$474	12/31/2023
ATRC	13,270	$474	12/31/2023
Wesbanco Bank Inc.	15,525	$472	03/31/2024
ATRC	15,525	$472	03/31/2024
Arizona State Retirement System	13,237	$472	12/31/2023
ATRC	13,237	$472	12/31/2023
Petrus Trust Company LTA	13,082	$467	12/31/2023
ATRC	13,082	$467	12/31/2023
Truist Financial Corp	12,920	$461	12/31/2023
ATRC	12,920	$461	12/31/2023
Seven Eight Capital LP	12,762	$455	12/31/2023
ATRC	12,762	$455	12/31/2023
Norden Group LLC	14,456	$440	03/31/2024
ATRC	14,456	$440	03/31/2024
Mackenzie Financial Corp	12,295	$439	12/31/2023
ATRC	12,295	$439	12/31/2023
UBS Oconnor LLC	12,199	$435	12/31/2023
ATRC	12,199	$435	12/31/2023
MAI Capital Management	11,658	$416	12/31/2023
ATRC	11,658	$416	12/31/2023
Principal Financial Group Inc.	11,541	$412	12/31/2023
ATRC	11,541	$412	12/31/2023
Aquatic Capital Management LLC	11,500	$410	12/31/2023
ATRC	11,500	$410	12/31/2023
Y Intercept Hong Kong Ltd	11,078	$395	12/31/2023
ATRC	11,078	$395	12/31/2023
Tower Research Capital LLC TRC	10,561	$377	12/31/2023
ATRC	10,561	$377	12/31/2023
Occudo Quantitative Strategies LP	10,476	$374	12/31/2023
ATRC	10,476	$374	12/31/2023
Commerce Bank	10,066	$359	12/31/2023
ATRC	10,066	$359	12/31/2023
Arrowstreet Capital Limited Partnership	9,996	$357	12/31/2023
ATRC	9,996	$357	12/31/2023
Entropy Technologies LP	9,933	$355	12/31/2023
ATRC	9,933	$355	12/31/2023
HighMark Wealth Management LLC	9,125	$326	12/31/2023
ATRC	9,125	$326	12/31/2023
Citigroup Inc.	9,034	$322	12/31/2023
ATRC	9,034	$322	12/31/2023
Delap Wealth Advisory LLC	9,000	$321	12/31/2023
ATRC	9,000	$321	12/31/2023
Oppenheimer Asset Management Inc.	8,900	$318	12/31/2023
ATRC	8,900	$318	12/31/2023
Dfpg Investments LLC	9,408	$317	12/31/2023
ATRC	9,408	$317	12/31/2023
Snowden Capital Advisors LLC	8,689	$310	12/31/2023
ATRC	8,689	$310	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	10,173	$309	03/31/2024
ATRC	10,173	$309	03/31/2024
MML Investors Services LLC	8,555	$305	12/31/2023
ATRC	8,555	$305	12/31/2023
Group One Trading L.P.		$286	12/31/2023
Call	8,000	$286	12/31/2023
XTX Topco Ltd	7,796	$278	12/31/2023
ATRC	7,796	$278	12/31/2023
ProShare Advisors LLC	7,712	$275	12/31/2023
ATRC	7,712	$275	12/31/2023
MQS Management LLC	7,698	$275	12/31/2023
ATRC	7,698	$275	12/31/2023
Schonfeld Strategic Advisors LLC	7,548	$269	12/31/2023
ATRC	7,548	$269	12/31/2023
AlTi Global Inc.	7,263	$259	12/31/2023
ATRC	7,263	$259	12/31/2023
Aigen Investment Management LP	7,136	$255	12/31/2023
ATRC	7,136	$255	12/31/2023
EntryPoint Capital LLC	7,152	$255	12/31/2023
ATRC	7,152	$255	12/31/2023
Public Employees Retirement Association of Colorado	6,844	$244	12/31/2023
ATRC	6,844	$244	12/31/2023
Landscape Capital Management L.L.C.	6,770	$242	12/31/2023
ATRC	6,770	$242	12/31/2023
Blair William & Co. IL	6,246	$223	12/31/2023
ATRC	6,246	$223	12/31/2023
Victory Capital Management Inc.	6,202	$221	12/31/2023
ATRC	6,202	$221	12/31/2023
The PNC Financial Services Group Inc.	6,140	$219	12/31/2023
ATRC	6,140	$219	12/31/2023
CenterBook Partners LP	6,055	$216	12/31/2023
ATRC	6,055	$216	12/31/2023
Virtu Financial LLC	5,979	$213	12/31/2023
ATRC	5,979	$213	12/31/2023
Cresset Asset Management LLC	5,767	$206	12/31/2023
ATRC	5,767	$206	12/31/2023
Parallel Advisors LLC	5,672	$202	12/31/2023
ATRC	5,672	$202	12/31/2023
Ameritas Investment Partners Inc.	4,629	$165	12/31/2023
ATRC	4,629	$165	12/31/2023
Virtus Investment Advisers Inc.	4,205	$150	12/31/2023
ATRC	4,205	$150	12/31/2023
Lazard Asset Management LLC	3,660	$130	12/31/2023
ATRC	3,660	$130	12/31/2023
IFP Advisors Inc	3,110	$111	12/31/2023
ATRC	3,110	$111	12/31/2023
Quest Partners LLC	2,894	$103	12/31/2023
ATRC	2,894	$103	12/31/2023
Metropolitan Life Insurance Co NY	2,680	$96	12/31/2023
ATRC	2,680	$96	12/31/2023
State of Wyoming	1,749	$62	12/31/2023
ATRC	1,749	$62	12/31/2023
First Horizon Advisors Inc.	1,963	$60	03/31/2024
ATRC	1,963	$60	03/31/2024
US Bancorp DE	1,681	$60	12/31/2023
ATRC	1,681	$60	12/31/2023
Comerica Bank	1,479	$53	12/31/2023
ATRC	1,479	$53	12/31/2023
Amalgamated Bank	1,560	$47	03/31/2024
ATRC	1,560	$47	03/31/2024
KBC Group NV	1,158	$41	12/31/2023
ATRC	1,158	$41	12/31/2023
Virtus Fund Advisers LLC	752	$27	12/31/2023
ATRC	752	$27	12/31/2023
Advisory Services Network LLC	498	$18	12/31/2023
ATRC	498	$18	12/31/2023
Huntington National Bank	473	$17	12/31/2023
ATRC	473	$17	12/31/2023
Nisa Investment Advisors LLC	482	$17	12/31/2023
ATRC	482	$17	12/31/2023
GWM Advisors LLC	471	$17	12/31/2023
ATRC	471	$17	12/31/2023
Quadrant Capital Group LLC	489	$17	12/31/2023
ATRC	489	$17	12/31/2023
Principal Securities Inc.	386	$14	12/31/2023
ATRC	386	$14	12/31/2023
Brown Brothers Harriman & Co.	343	$12	12/31/2023
ATRC	343	$12	12/31/2023
Johnson Financial Group Inc.	317	$11	12/31/2023
ATRC	317	$11	12/31/2023
Mitsubishi UFJ Kokusai Asset Management Co. Ltd.	192	$6	12/31/2023
ATRC	192	$6	12/31/2023
Private Trust Co. NA	152	$5	03/31/2024
ATRC	152	$5	03/31/2024
Mather Group LLC.	165	$5	03/31/2024
ATRC	165	$5	03/31/2024
Signaturefd LLC	146	$5	12/31/2023
ATRC	146	$5	12/31/2023
Park Place Capital Corp	116	$4	03/31/2024
ATRC	116	$4	03/31/2024
Hillsdale Investment Management Inc.	120	$4	12/31/2023
ATRC	120	$4	12/31/2023
Bell Investment Advisors Inc	123	$4	12/31/2023
ATRC	123	$4	12/31/2023
Farther Finance Advisors LLC	104	$4	12/31/2023
ATRC	104	$4	12/31/2023
CWM LLC	92	$3	03/31/2024
ATRC	92	$3	03/31/2024
Russell Investments Group Ltd.	67	$2	12/31/2023
ATRC	67	$2	12/31/2023
Truvestments Capital LLC	54	$2	12/31/2023
ATRC	54	$2	12/31/2023
CENTRAL TRUST Co	35	$1	03/31/2024
ATRC	35	$1	03/31/2024
Allworth Financial LP	22	$1	03/31/2024
ATRC	22	$1	03/31/2024
West Paces Advisors Inc.	25	$1	03/31/2024
ATRC	25	$1	03/31/2024
FinTrust Capital Advisors LLC	24	$1	12/31/2023
ATRC	24	$1	12/31/2023
GPS Wealth Strategies Group LLC	31	$1	12/31/2023
ATRC	31	$1	12/31/2023
Private Wealth Management Group LLC	33	$1	12/31/2023
ATRC	33	$1	12/31/2023
Versant Capital Management Inc	7	$0	03/31/2024
ATRC	7	$0	03/31/2024
BOKF NA	5	$0	12/31/2023
ATRC	5	$0	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
ATRC	0	$0	12/31/2023
Call	0	$0	12/31/2023
SRS Capital Advisors Inc.	4	$0	12/31/2023
ATRC	4	$0	12/31/2023
Covestor Ltd	3	$0	12/31/2023
ATRC	3	$0	12/31/2023
Simplex Trading LLC	500	$-107	03/31/2024
Put	8,000	$243	03/31/2024
ATRC	3,991	$121	03/31/2024
Call	500	$15	03/31/2024

See Summary: Institutional Holders of ATRC
See Details: Top 10 Hedge Funds Holding ATRC
Also See: ATRC Insider Buying
Also See: ATRC Holdings Changes

ATRC — Current Quote

Quotes delayed 20 minutes Free ATRC Email Alerts: Get Dividend Alerts Get SEC Filing Alerts

ATRC — Performance