There is a long list of 130 institutional holders of CTOS 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 CTOS by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-CTOS table below, the initial column indicates the name of each top institutional holder of CTOS, with a link to that fund's top holdings. The next columns indicate the amount of CTOS stock held by each of the institutional holders of CTOS, followed by the CTOS 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
Platinum Equity Advisors LLC DE	148,600,000	$918,348	12/31/2023
CTOS	148,600,000	$918,348	12/31/2023
ECP ControlCo LLC	25,738,988	$159,067	12/31/2023
CTOS	25,738,988	$159,067	12/31/2023
Federated Hermes Inc.	4,741,512	$29,303	12/31/2023
CTOS	4,741,512	$29,303	12/31/2023
BlackRock Inc.	3,935,827	$24,323	12/31/2023
CTOS	3,935,827	$24,323	12/31/2023
Canvas Wealth Advisors LLC	3,413,242	$21,299	12/31/2023
CTOS	3,413,242	$21,299	12/31/2023
Vanguard Group Inc.	3,111,000	$19,226	12/31/2023
CTOS	3,111,000	$19,226	12/31/2023
Alyeska Investment Group L.P.		$15,120	12/31/2023
CTOS	1,966,983	$12,156	12/31/2023
Call	479,592	$2,964	12/31/2023
Gilder Gagnon Howe & Co. LLC	2,160,864	$13,354	12/31/2023
CTOS	2,160,864	$13,354	12/31/2023
Mirae Asset Global Investments Co. Ltd.	2,137,541	$13,210	12/31/2023
CTOS	2,137,541	$13,210	12/31/2023
Clearbridge Investments LLC	1,878,893	$11,612	12/31/2023
CTOS	1,878,893	$11,612	12/31/2023
Allspring Global Investments Holdings LLC	1,700,194	$9,895	03/31/2024
CTOS	1,700,194	$9,895	03/31/2024
R.P. Boggs & Co. Wealth Mangement	1,317,821	$8,144	12/31/2023
CTOS	1,317,821	$8,144	12/31/2023
Geode Capital Management LLC	1,254,723	$7,755	12/31/2023
CTOS	1,254,723	$7,755	12/31/2023
Schroder Investment Management Group	1,182,403	$7,307	12/31/2023
CTOS	1,182,403	$7,307	12/31/2023
Dimensional Fund Advisors LP	1,162,814	$7,188	12/31/2023
CTOS	1,162,814	$7,188	12/31/2023
State Street Corp	1,156,654	$7,148	12/31/2023
CTOS	1,156,654	$7,148	12/31/2023
Portolan Capital Management LLC	1,042,255	$6,441	12/31/2023
CTOS	1,042,255	$6,441	12/31/2023
ArrowMark Colorado Holdings LLC	1,002,000	$6,192	12/31/2023
CTOS	1,002,000	$6,192	12/31/2023
Loomis Sayles & Co. L P	775,452	$4,792	12/31/2023
CTOS	775,452	$4,792	12/31/2023
Putnam Investments LLC	633,823	$3,917	12/31/2023
CTOS	633,823	$3,917	12/31/2023
Bank of America Corp DE	579,973	$3,584	12/31/2023
CTOS	579,973	$3,584	12/31/2023
Northern Trust Corp	550,970	$3,405	12/31/2023
CTOS	550,970	$3,405	12/31/2023
Charles Schwab Investment Management Inc.	456,254	$2,820	12/31/2023
CTOS	456,254	$2,820	12/31/2023
First Trust Advisors LP	390,691	$2,414	12/31/2023
CTOS	390,691	$2,414	12/31/2023
Morgan Stanley		$2,105	12/31/2023
CTOS	339,850	$2,100	12/31/2023
CTOS.WT	66,600	$5	12/31/2023
Janus Henderson Group PLC	302,834	$1,871	12/31/2023
CTOS	302,834	$1,871	12/31/2023
Bank of New York Mellon Corp	272,192	$1,682	12/31/2023
CTOS	272,192	$1,682	12/31/2023
Marshall Wace LLP		$1,545	12/31/2023
Call	250,000	$1,545	12/31/2023
Two Sigma Advisers LP	239,000	$1,477	12/31/2023
CTOS	239,000	$1,477	12/31/2023
Renaissance Technologies LLC	237,300	$1,467	12/31/2023
CTOS	237,300	$1,467	12/31/2023
Two Sigma Investments LP	213,447	$1,319	12/31/2023
CTOS	213,447	$1,319	12/31/2023
Nuveen Asset Management LLC	200,057	$1,236	12/31/2023
CTOS	200,057	$1,236	12/31/2023
GSA Capital Partners LLP	192,543	$1,190	12/31/2023
CTOS	192,543	$1,190	12/31/2023
Millennium Management LLC	192,145	$1,187	12/31/2023
CTOS	192,145	$1,187	12/31/2023
Register Financial Advisors LLC	179,300	$1,044	03/31/2024
CTOS	179,300	$1,044	03/31/2024
Sendero Wealth Management LLC	152,800	$889	03/31/2024
CTOS	152,800	$889	03/31/2024
Citadel Advisors LLC		$846	12/31/2023
CTOS	131,303	$811	12/31/2023
Call	5,700	$35	12/31/2023
Sei Investments Co.	135,835	$839	12/31/2023
CTOS	135,835	$839	12/31/2023
Black Diamond Financial LLC		$771	12/31/2023
CTOS	121,635	$752	12/31/2023
CTOS.WT	275,328	$19	12/31/2023
Swiss National Bank	121,300	$750	12/31/2023
CTOS	121,300	$750	12/31/2023
Algert Global LLC	112,305	$694	12/31/2023
CTOS	112,305	$694	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	100,525	$621	12/31/2023
CTOS	100,525	$621	12/31/2023
Royal Bank of Canada	97,862	$605	12/31/2023
CTOS	97,862	$605	12/31/2023
Barclays PLC	90,308	$558	12/31/2023
CTOS	90,308	$558	12/31/2023
JPMorgan Chase & Co.		$548	12/31/2023
CTOS	76,937	$475	12/31/2023
CTOS.WT	1,045,361	$73	12/31/2023
SG Americas Securities LLC	84,169	$520	12/31/2023
CTOS	84,169	$520	12/31/2023
State of Wisconsin Investment Board	81,138	$501	12/31/2023
CTOS	81,138	$501	12/31/2023
Invesco Ltd.	79,051	$489	12/31/2023
CTOS	79,051	$489	12/31/2023
Rhumbline Advisers	75,201	$465	12/31/2023
CTOS	75,201	$465	12/31/2023
UBS Asset Management Americas Inc.	74,253	$459	12/31/2023
CTOS	74,253	$459	12/31/2023