There is a long list of 169 institutional holders of ACT 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 ACT by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ACT table below, the initial column indicates the name of each top institutional holder of ACT, with a link to that fund's top holdings. The next columns indicate the amount of ACT stock held by each of the institutional holders of ACT, followed by the ACT 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
Bayview Asset Management LLC	4,411,459	$127,447	12/31/2023
ACT	4,411,459	$127,447	12/31/2023
Vanguard Group Inc.	3,072,734	$88,771	12/31/2023
ACT	3,072,734	$88,771	12/31/2023
BlackRock Inc.	2,467,712	$71,292	12/31/2023
ACT	2,467,712	$71,292	12/31/2023
FMR LLC	2,235,357	$64,579	12/31/2023
ACT	2,235,357	$64,579	12/31/2023
Glendon Capital Management LP	1,298,718	$37,520	12/31/2023
ACT	1,298,718	$37,520	12/31/2023
Dimensional Fund Advisors LP	980,567	$28,330	12/31/2023
ACT	980,567	$28,330	12/31/2023
State Street Corp	783,337	$22,631	12/31/2023
ACT	783,337	$22,631	12/31/2023
Geode Capital Management LLC	779,404	$22,519	12/31/2023
ACT	779,404	$22,519	12/31/2023
Millennium Management LLC	775,814	$22,413	12/31/2023
ACT	775,814	$22,413	12/31/2023
American Century Companies Inc.	702,244	$20,288	12/31/2023
ACT	702,244	$20,288	12/31/2023
Boston Partners	682,921	$19,684	12/31/2023
ACT	682,921	$19,684	12/31/2023
Nuveen Asset Management LLC	626,514	$18,100	12/31/2023
ACT	626,514	$18,100	12/31/2023
D. E. Shaw & Co. Inc.	572,937	$16,552	12/31/2023
ACT	572,937	$16,552	12/31/2023
Bank of New York Mellon Corp	516,882	$16,116	03/31/2024
ACT	516,882	$16,116	03/31/2024
Two Sigma Investments LP	458,721	$13,252	12/31/2023
ACT	458,721	$13,252	12/31/2023
Allianz Asset Management GmbH	411,119	$11,877	12/31/2023
ACT	411,119	$11,877	12/31/2023
JPMorgan Chase & Co.	405,340	$11,710	12/31/2023
ACT	405,340	$11,710	12/31/2023
Hotchkis & Wiley Capital Management LLC	395,780	$11,434	12/31/2023
ACT	395,780	$11,434	12/31/2023
Two Sigma Advisers LP	373,000	$10,776	12/31/2023
ACT	373,000	$10,776	12/31/2023
Prudential Financial Inc.	370,545	$10,705	12/31/2023
ACT	370,545	$10,705	12/31/2023
Northern Trust Corp	362,969	$10,486	12/31/2023
ACT	362,969	$10,486	12/31/2023
Charles Schwab Investment Management Inc.	320,473	$9,258	12/31/2023
ACT	320,473	$9,258	12/31/2023
Arrowstreet Capital Limited Partnership	295,217	$8,529	12/31/2023
ACT	295,217	$8,529	12/31/2023
DekaBank Deutsche Girozentrale	217,787	$6,758	03/31/2024
ACT	217,787	$6,758	03/31/2024
Voloridge Investment Management LLC	214,041	$6,184	12/31/2023
ACT	214,041	$6,184	12/31/2023
Morgan Stanley	207,308	$5,989	12/31/2023
ACT	207,308	$5,989	12/31/2023
Qube Research & Technologies Ltd	204,500	$5,908	12/31/2023
ACT	204,500	$5,908	12/31/2023
Renaissance Technologies LLC	201,800	$5,830	12/31/2023
ACT	201,800	$5,830	12/31/2023
Denali Advisors LLC	175,366	$5,468	03/31/2024
ACT	175,366	$5,468	03/31/2024
Algert Global LLC	182,742	$5,279	12/31/2023
ACT	182,742	$5,279	12/31/2023
Tudor Investment Corp Et Al	176,854	$5,109	12/31/2023
ACT	176,854	$5,109	12/31/2023
Robeco Institutional Asset Management B.V.	150,971	$4,707	03/31/2024
ACT	150,971	$4,707	03/31/2024
Goldman Sachs Group Inc.	149,538	$4,320	12/31/2023
ACT	149,538	$4,320	12/31/2023
Cubist Systematic Strategies LLC	140,656	$4,064	12/31/2023
ACT	140,656	$4,064	12/31/2023
Keeley Teton Advisors LLC	139,818	$4,039	12/31/2023
ACT	139,818	$4,039	12/31/2023
Foundry Partners LLC	125,509	$3,626	12/31/2023
ACT	125,509	$3,626	12/31/2023
Lazard Asset Management LLC	118,561	$3,425	12/31/2023
ACT	118,561	$3,425	12/31/2023
Edgestream Partners L.P.	117,851	$3,405	12/31/2023
ACT	117,851	$3,405	12/31/2023
Richard Bernstein Advisors LLC	100,744	$2,910	12/31/2023
ACT	100,744	$2,910	12/31/2023
Norges Bank	98,100	$2,834	12/31/2023
ACT	98,100	$2,834	12/31/2023
First Trust Advisors LP	85,314	$2,465	12/31/2023
ACT	85,314	$2,465	12/31/2023
AXA S.A.	82,700	$2,389	12/31/2023
ACT	82,700	$2,389	12/31/2023
Martingale Asset Management L P	78,305	$2,262	12/31/2023
ACT	78,305	$2,262	12/31/2023
New York State Common Retirement Fund	76,331	$2,205	12/31/2023
ACT	76,331	$2,205	12/31/2023
Deutsche Bank AG	74,101	$2,141	12/31/2023
ACT	74,101	$2,141	12/31/2023
Citadel Advisors LLC		$2,028	12/31/2023
ACT	66,222	$1,913	12/31/2023
Call	5,300	$153	12/31/2023
Put	1,300	$38	12/31/2023
Swiss National Bank	63,100	$1,823	12/31/2023
ACT	63,100	$1,823	12/31/2023
Canada Pension Plan Investment Board	58,000	$1,676	12/31/2023
ACT	58,000	$1,676	12/31/2023
Ameriprise Financial Inc.	57,399	$1,658	12/31/2023
ACT	57,399	$1,658	12/31/2023
Sei Investments Co.	54,781	$1,583	12/31/2023
ACT	54,781	$1,583	12/31/2023