There is a long list of 65 institutional holders of ATLC 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 ATLC by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ATLC table below, the initial column indicates the name of each top institutional holder of ATLC, with a link to that fund's top holdings. The next columns indicate the amount of ATLC stock held by each of the institutional holders of ATLC, followed by the ATLC 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
Dimensional Fund Advisors LP	602,272	$23,290	12/31/2023
ATLC	602,272	$23,290	12/31/2023
BlackRock Inc.	390,642	$15,106	12/31/2023
ATLC	390,642	$15,106	12/31/2023
Vanguard Group Inc.	256,236	$9,909	12/31/2023
ATLC	256,236	$9,909	12/31/2023
Renaissance Technologies LLC	108,558	$4,198	12/31/2023
ATLC	108,558	$4,198	12/31/2023
Geode Capital Management LLC	103,770	$4,013	12/31/2023
ATLC	103,770	$4,013	12/31/2023
State Street Corp	99,234	$3,837	12/31/2023
ATLC	99,234	$3,837	12/31/2023
Northern Trust Corp	43,763	$1,692	12/31/2023
ATLC	43,763	$1,692	12/31/2023
Bank of New York Mellon Corp	36,836	$1,424	12/31/2023
ATLC	36,836	$1,424	12/31/2023
American Century Companies Inc.	32,558	$1,259	12/31/2023
ATLC	32,558	$1,259	12/31/2023
Los Angeles Capital Management & Equity Research Inc.	32,024	$948	03/31/2024
ATLC	32,024	$948	03/31/2024
Denali Advisors LLC	26,040	$771	03/31/2024
ATLC	26,040	$771	03/31/2024
Invesco Ltd.	19,456	$752	12/31/2023
ATLC	19,456	$752	12/31/2023
GSA Capital Partners LLP	18,500	$715	12/31/2023
ATLC	18,500	$715	12/31/2023
Bridgeway Capital Management Inc.	15,654	$605	12/31/2023
ATLC	15,654	$605	12/31/2023
Brandywine Global Investment Management LLC	14,422	$558	12/31/2023
ATLC	14,422	$558	12/31/2023
Empowered Funds LLC	14,044	$543	12/31/2023
ATLC	14,044	$543	12/31/2023
First Trust Advisors LP	12,828	$496	12/31/2023
ATLC	12,828	$496	12/31/2023
Charles Schwab Investment Management Inc.	12,729	$492	12/31/2023
ATLC	12,729	$492	12/31/2023
Nuveen Asset Management LLC	12,615	$488	12/31/2023
ATLC	12,615	$488	12/31/2023
Credit Suisse AG	11,799	$456	12/31/2023
ATLC	11,799	$456	12/31/2023
Morgan Stanley	11,747	$454	12/31/2023
ATLC	11,747	$454	12/31/2023
Swiss National Bank	11,400	$441	12/31/2023
ATLC	11,400	$441	12/31/2023
Samalin Investment Counsel LLC	10,600	$410	12/31/2023
ATLC	10,600	$410	12/31/2023
O Shaughnessy Asset Management LLC	9,660	$374	12/31/2023
ATLC	9,660	$374	12/31/2023
State of Wisconsin Investment Board	9,646	$373	12/31/2023
ATLC	9,646	$373	12/31/2023
HB Wealth Management LLC	8,376	$324	12/31/2023
ATLC	8,376	$324	12/31/2023
Barclays PLC	8,032	$310	12/31/2023
ATLC	8,032	$310	12/31/2023
Janus Henderson Group PLC	7,768	$301	12/31/2023
ATLC	7,768	$301	12/31/2023
Synovus Financial Corp	7,600	$294	12/31/2023
ATLC	7,600	$294	12/31/2023
Massachusetts Financial Services Co. MA	7,175	$277	12/31/2023
ATLC	7,175	$277	12/31/2023
Rhumbline Advisers	7,040	$272	12/31/2023
ATLC	7,040	$272	12/31/2023
Alliancebernstein L.P.	6,810	$263	12/31/2023
ATLC	6,810	$263	12/31/2023
Royal Bank of Canada	6,684	$258	12/31/2023
ATLC	6,684	$258	12/31/2023
Legal & General Group Plc	6,418	$248	12/31/2023
ATLC	6,418	$248	12/31/2023
Bank of America Corp DE	6,382	$247	12/31/2023
ATLC	6,382	$247	12/31/2023
New York State Common Retirement Fund	6,254	$242	12/31/2023
ATLC	6,254	$242	12/31/2023
Two Sigma Investments LP	6,223	$241	12/31/2023
ATLC	6,223	$241	12/31/2023
California State Teachers Retirement System	6,043	$234	12/31/2023
ATLC	6,043	$234	12/31/2023
Citadel Advisors LLC		$234	12/31/2023
ATLC	8,670	$335	12/31/2023
Put	6,200	$240	12/31/2023
Call	3,600	$139	12/31/2023
JPMorgan Chase & Co.	5,791	$224	12/31/2023
ATLC	5,791	$224	12/31/2023
UBS Group AG	5,794	$224	12/31/2023
ATLC	5,794	$224	12/31/2023
Corton Capital Inc.	5,569	$215	12/31/2023
ATLC	5,569	$215	12/31/2023
Price T Rowe Associates Inc. MD	5,268	$204	12/31/2023
ATLC	5,268	$204	12/31/2023
MetLife Investment Management LLC	2,502	$97	12/31/2023
ATLC	2,502	$97	12/31/2023
American International Group Inc.	2,278	$88	12/31/2023
ATLC	2,278	$88	12/31/2023
Deutsche Bank AG	2,062	$80	12/31/2023
ATLC	2,062	$80	12/31/2023
Russell Investments Group Ltd.	1,654	$64	12/31/2023
ATLC	1,654	$64	12/31/2023
Wells Fargo & Company MN	1,401	$54	12/31/2023
ATLC	1,401	$54	12/31/2023
BNP Paribas Arbitrage SA	1,404	$54	12/31/2023
ATLC	1,404	$54	12/31/2023
CWM LLC	1,537	$45	03/31/2024
ATLC	1,537	$45	03/31/2024