There is a long list of 466 institutional holders of ACI 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 ACI by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ACI table below, the initial column indicates the name of each top institutional holder of ACI, with a link to that fund's top holdings. The next columns indicate the amount of ACI stock held by each of the institutional holders of ACI, followed by the ACI 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
Cerberus Capital Management L.P.	151,818,680	$2,658,345	09/30/2025
ACI	151,818,680	$2,658,345	09/30/2025
BlackRock Inc.	41,376,920	$724,510	09/30/2025
ACI	41,376,920	$724,510	09/30/2025
Vanguard Group Inc.	39,330,507	$675,305	12/31/2025
ACI	39,330,507	$675,305	12/31/2025
FMR LLC	25,308,449	$443,151	09/30/2025
ACI	25,308,449	$443,151	09/30/2025
Norges Bank	22,602,710	$388,089	12/31/2025
ACI	22,602,710	$388,089	12/31/2025
State Street Corp	16,795,534	$294,090	09/30/2025
ACI	16,795,534	$294,090	09/30/2025
Citadel Advisors LLC		$234,851	09/30/2025
ACI	12,546,256	$219,685	09/30/2025
Call	1,241,500	$21,739	09/30/2025
Put	375,400	$6,573	09/30/2025
LSV Asset Management	11,130,407	$191,109	12/31/2025
ACI	11,130,407	$191,109	12/31/2025
Massachusetts Financial Services Co. MA	10,597,903	$181,966	12/31/2025
ACI	10,597,903	$181,966	12/31/2025
JPMorgan Chase & Co.		$158,547	12/31/2025
ACI	9,151,516	$157,132	12/31/2025
Call	82,400	$1,415	12/31/2025
Dimensional Fund Advisors LP	8,269,879	$144,803	09/30/2025
ACI	8,269,879	$144,803	09/30/2025
Geode Capital Management LLC	7,695,625	$132,160	12/31/2025
ACI	7,695,625	$132,160	12/31/2025
Parsifal Capital Management LP	6,709,248	$117,479	09/30/2025
ACI	6,709,248	$117,479	09/30/2025
AQR Capital Management LLC	6,283,584	$110,026	09/30/2025
ACI	6,283,584	$110,026	09/30/2025
Morgan Stanley	5,813,935	$101,802	09/30/2025
ACI	5,813,935	$101,802	09/30/2025
Bank of New York Mellon Corp	5,360,520	$92,040	12/31/2025
ACI	5,360,520	$92,040	12/31/2025
Southeastern Asset Management Inc. TN	4,943,869	$86,567	09/30/2025
ACI	4,943,869	$86,567	09/30/2025
Sound Shore Management Inc CT	4,533,158	$77,834	12/31/2025
ACI	4,533,158	$77,834	12/31/2025
Invesco Ltd.	3,919,604	$68,632	09/30/2025
ACI	3,919,604	$68,632	09/30/2025
Northern Trust Corp	3,801,289	$66,561	09/30/2025
ACI	3,801,289	$66,561	09/30/2025
Allianz Asset Management GmbH	3,563,921	$61,193	12/31/2025
ACI	3,563,921	$61,193	12/31/2025
UBS Group AG		$59,312	12/31/2025
ACI	3,448,857	$59,217	12/31/2025
Call	55,500	$953	12/31/2025
Put	50,000	$858	12/31/2025
Charles Schwab Investment Management Inc.	3,291,688	$57,637	09/30/2025
ACI	3,291,688	$57,637	09/30/2025
Millennium Management LLC		$52,341	09/30/2025
ACI	3,234,222	$56,631	09/30/2025
Put	258,800	$4,532	09/30/2025
Call	13,800	$242	09/30/2025
Virginia Retirement Systems ET AL	2,887,200	$49,573	12/31/2025
ACI	2,887,200	$49,573	12/31/2025
Private Management Group Inc.	2,360,714	$41,336	09/30/2025
ACI	2,360,714	$41,336	09/30/2025
Qube Research & Technologies Ltd	2,240,356	$39,229	09/30/2025
ACI	2,240,356	$39,229	09/30/2025
Arrowstreet Capital Limited Partnership	2,229,899	$39,046	09/30/2025
ACI	2,229,899	$39,046	09/30/2025
UBS Asset Management Americas Inc.	2,014,981	$35,282	09/30/2025
ACI	2,014,981	$35,282	09/30/2025
DZ BANK AG Deutsche Zentral Genossenschafts Bank Frankfurt am Main	2,009,324	$35,183	09/30/2025
ACI	2,009,324	$35,183	09/30/2025
E. Ohman J or Asset Management AB	1,877,789	$32,242	12/31/2025
ACI	1,877,789	$32,242	12/31/2025
Bank of America Corp DE	1,774,965	$31,080	09/30/2025
ACI	1,774,965	$31,080	09/30/2025
Seizert Capital Partners LLC	1,797,475	$30,863	12/31/2025
ACI	1,797,475	$30,863	12/31/2025
Apollo Management Holdings L.P.	1,465,000	$25,652	09/30/2025
ACI	1,465,000	$25,652	09/30/2025
California Public Employees Retirement System	1,344,969	$23,550	09/30/2025
ACI	1,344,969	$23,550	09/30/2025
Susquehanna International Group LLP		$23,523	09/30/2025
Call	1,490,000	$26,090	09/30/2025
Put	279,800	$4,899	09/30/2025
ACI	133,179	$2,332	09/30/2025
Arbejdsmarkedets Tillaegspension	1,349,911	$23,178	12/31/2025
ACI	1,349,911	$23,178	12/31/2025
Marshall Wace LLP	1,301,780	$22,794	09/30/2025
ACI	1,301,780	$22,794	09/30/2025
Voloridge Investment Management LLC	1,255,233	$21,979	09/30/2025
ACI	1,255,233	$21,979	09/30/2025
Squarepoint Ops LLC		$21,596	09/30/2025
ACI	1,182,890	$20,712	09/30/2025
Call	50,500	$884	09/30/2025
Sei Investments Co.	1,227,689	$21,498	09/30/2025
ACI	1,227,689	$21,498	09/30/2025
DekaBank Deutsche Girozentrale	1,217,131	$20,898	12/31/2025
ACI	1,217,131	$20,898	12/31/2025
Quantinno Capital Management LP	1,190,722	$20,850	09/30/2025
ACI	1,190,722	$20,850	09/30/2025
Barclays PLC	1,190,463	$20,845	09/30/2025
ACI	1,190,463	$20,845	09/30/2025
Rhumbline Advisers	1,188,922	$20,818	09/30/2025
ACI	1,188,922	$20,818	09/30/2025
Goldman Sachs Group Inc.		$19,833	12/31/2025
ACI	1,130,087	$19,404	12/31/2025
Call	25,000	$429	12/31/2025
Gotham Asset Management LLC	1,102,340	$19,302	09/30/2025
ACI	1,102,340	$19,302	09/30/2025
Franklin Resources Inc.	1,119,225	$19,217	12/31/2025
ACI	1,119,225	$19,217	12/31/2025
State of Wisconsin Investment Board	1,057,040	$18,509	09/30/2025
ACI	1,057,040	$18,509	09/30/2025
Swiss National Bank	1,038,800	$18,189	09/30/2025
ACI	1,038,800	$18,189	09/30/2025