There is a long list of 192 institutional holders of ATEN within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of ATEN by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ATEN table below, the initial column indicates the name of each top institutional holder of ATEN, with a link to that fund's top holdings. The next columns indicate the amount of ATEN stock held by each of the institutional holders of ATEN, followed by the ATEN position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Punch & Associates Investment Management Inc.		$15,430,787	12/31/2023
Call	1,170,491	$15,415,372	12/31/2023
ATEN	1,170,491	$15,415	12/31/2023
BlackRock Inc.	13,179,913	$173,579	12/31/2023
ATEN	13,179,913	$173,579	12/31/2023
Vanguard Group Inc.	7,068,348	$93,090	12/31/2023
ATEN	7,068,348	$93,090	12/31/2023
First Trust Advisors LP	4,470,999	$58,883	12/31/2023
ATEN	4,470,999	$58,883	12/31/2023
Summit Partners L P	3,888,206	$51,208	12/31/2023
ATEN	3,888,206	$51,208	12/31/2023
State Street Corp	3,190,821	$42,023	12/31/2023
ATEN	3,190,821	$42,023	12/31/2023
Mirae Asset Global Investments Co. Ltd.	2,486,953	$32,753	12/31/2023
ATEN	2,486,953	$32,753	12/31/2023
Renaissance Technologies LLC	2,317,333	$30,519	12/31/2023
ATEN	2,317,333	$30,519	12/31/2023
Bank of New York Mellon Corp	1,853,364	$25,373	03/31/2024
ATEN	1,853,364	$25,373	03/31/2024
Dimensional Fund Advisors LP	1,751,119	$23,063	12/31/2023
ATEN	1,751,119	$23,063	12/31/2023
Morgan Stanley	1,597,823	$21,043	12/31/2023
ATEN	1,597,823	$21,043	12/31/2023
Deprince Race & Zollo Inc.	1,520,297	$20,022	12/31/2023
ATEN	1,520,297	$20,022	12/31/2023
Geode Capital Management LLC	1,484,398	$19,552	12/31/2023
ATEN	1,484,398	$19,552	12/31/2023
Price T Rowe Associates Inc. MD	1,208,677	$15,919	12/31/2023
ATEN	1,208,677	$15,919	12/31/2023
Legal & General Group Plc	1,204,612	$15,865	12/31/2023
ATEN	1,204,612	$15,865	12/31/2023
Jacobs Levy Equity Management Inc.	1,041,012	$13,710	12/31/2023
ATEN	1,041,012	$13,710	12/31/2023
Impax Asset Management Group plc	775,000	$10,207	12/31/2023
ATEN	775,000	$10,207	12/31/2023
Northern Trust Corp	769,723	$10,137	12/31/2023
ATEN	769,723	$10,137	12/31/2023
Trigran Investments Inc.	738,208	$9,722	12/31/2023
ATEN	738,208	$9,722	12/31/2023
Royce & Associates LP	672,578	$8,858	12/31/2023
ATEN	672,578	$8,858	12/31/2023
Assenagon Asset Management S.A.	638,894	$8,746	03/31/2024
ATEN	638,894	$8,746	03/31/2024
Goldman Sachs Group Inc.	628,429	$8,276	12/31/2023
ATEN	628,429	$8,276	12/31/2023
Peregrine Capital Management LLC	593,165	$7,812	12/31/2023
ATEN	593,165	$7,812	12/31/2023
Charles Schwab Investment Management Inc.	564,156	$7,430	12/31/2023
ATEN	564,156	$7,430	12/31/2023
Russell Investments Group Ltd.	561,155	$7,390	12/31/2023
ATEN	561,155	$7,390	12/31/2023
Two Sigma Advisers LP	495,800	$6,530	12/31/2023
ATEN	495,800	$6,530	12/31/2023
Voya Investment Management LLC	493,526	$6,500	12/31/2023
ATEN	493,526	$6,500	12/31/2023
Penserra Capital Management LLC	489,957	$6,452	12/31/2023
ATEN	489,957	$6,452	12/31/2023
Paradigm Capital Management Inc. NY	427,800	$5,634	12/31/2023
ATEN	427,800	$5,634	12/31/2023
Rice Hall James & Associates LLC	406,920	$5,571	03/31/2024
ATEN	406,920	$5,571	03/31/2024
Principal Financial Group Inc.	390,375	$5,141	12/31/2023
ATEN	390,375	$5,141	12/31/2023
Algert Global LLC	381,693	$5,027	12/31/2023
ATEN	381,693	$5,027	12/31/2023
Bridge City Capital LLC	347,160	$4,753	03/31/2024
ATEN	347,160	$4,753	03/31/2024
Invesco Ltd.	341,556	$4,498	12/31/2023
ATEN	341,556	$4,498	12/31/2023
Two Sigma Investments LP	337,912	$4,450	12/31/2023
ATEN	337,912	$4,450	12/31/2023
Allianz Asset Management GmbH	336,586	$4,433	12/31/2023
ATEN	336,586	$4,433	12/31/2023
Deutsche Bank AG	313,273	$4,126	12/31/2023
ATEN	313,273	$4,126	12/31/2023
Norges Bank	291,800	$3,843	12/31/2023
ATEN	291,800	$3,843	12/31/2023
Alliancebernstein L.P.	285,866	$3,765	12/31/2023
ATEN	285,866	$3,765	12/31/2023
Ameriprise Financial Inc.	278,033	$3,662	12/31/2023
ATEN	278,033	$3,662	12/31/2023
Great West Life Assurance Co. Can	275,998	$3,632	12/31/2023
ATEN	275,998	$3,632	12/31/2023
Davy Global Fund Management Ltd	241,487	$3,180	12/31/2023
ATEN	241,487	$3,180	12/31/2023
Sei Investments Co.	213,475	$2,811	12/31/2023
ATEN	213,475	$2,811	12/31/2023
Rhumbline Advisers	202,144	$2,662	12/31/2023
ATEN	202,144	$2,662	12/31/2023
Nuveen Asset Management LLC	192,064	$2,529	12/31/2023
ATEN	192,064	$2,529	12/31/2023
Hillsdale Investment Management Inc.	191,300	$2,519	12/31/2023
ATEN	191,300	$2,519	12/31/2023
Bank of America Corp DE	189,851	$2,500	12/31/2023
ATEN	189,851	$2,500	12/31/2023
Barclays PLC	184,018	$2,423	12/31/2023
ATEN	184,018	$2,423	12/31/2023
JPMorgan Chase & Co.	174,978	$2,304	12/31/2023
ATEN	174,978	$2,304	12/31/2023
Panagora Asset Management Inc.	155,181	$2,044	12/31/2023
ATEN	155,181	$2,044	12/31/2023