CTOS US Equity

Custom Truck One Source, Inc.

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Industrials · Services-Equipment Rental & Leasing, NEC · CIK 1709682 · FYE 1231

$9.72

-0.63 (-6.09%)

USD · as of 2026-07-29 · marketstack

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Institutional ownership· 13F filers holding CTOS · 2026-Q1 methodology → sources →

170 holders

% of shares outstanding held

96.2%

Shares held (13F)

218,824,567

Reporting holders

170

Top holders

largest 100 of 170 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	Platinum Equity Advisors, LLC/DE	156,743,635156.7M	$1.0B	68.92%	—
2	Canvas Wealth Advisors, LLC	7,019,5267.0M	$46M	3.09%	—
3	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	5,674,9185.7M	$37M	2.50%	ADD 4%
4	DIMENSIONAL FUND ADVISORS LP	5,602,8385.6M	$37M	2.46%	ADD 15%
5	BlackRock, Inc.	4,252,9724.3M	$28M	1.87%	—
6	Allspring Global Investments Holdings, LLC	3,914,1333.9M	$26M	1.72%	TRIM -7%
7	Alyeska Investment Group, L.P.	2,825,8202.8M	$19M	1.24%	ADD 13%
8	VANGUARD CAPITAL MANAGEMENT LLC	2,525,7442.5M	$17M	1.11%	NEW
9	Boston Partners	2,016,4062.0M	$13M	0.89%	TRIM -47%
10	STATE STREET CORP	1,486,0511.5M	$10M	0.65%	ADD 10%
11	GEODE CAPITAL MANAGEMENT, LLC	1,470,6361.5M	$10M	0.65%	ADD 2%
12	Clearbridge Investments, LLC	1,403,9651.4M	$9M	0.62%	TRIM -3%
13	FIRST TRUST ADVISORS LP	1,301,3511.3M	$9M	0.57%	ADD 6%
14	BANK OF AMERICA CORP /DE/	1,195,8361.2M	$8M	0.53%	TRIM -19%
15	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	1,056,5501.1M	$7M	0.46%	ADD 155%
16	HEARTLAND ADVISORS INC	1,000,0001.0M	$7M	0.44%	ADD 43%
17	MORGAN STANLEY	897,525897,525	$6M	0.39%	ADD 26%
18	INTRINSIC EDGE CAPITAL MANAGEMENT LLC	879,622879,622	$6M	0.39%	ADD 13%
19	BRIDGEWAY CAPITAL MANAGEMENT, LLC	845,115845,115	$6M	0.37%	ADD 9%
20	Empowered Funds, LLC	810,115810,115	$5M	0.36%	ADD 10%
21	First Eagle Investment Management, LLC	765,822765,822	$5M	0.34%	—
22	JPMORGAN CHASE & CO	770,219770,219	$5M	0.34%	ADD 2939%
23	JANE STREET GROUP, LLC	660,534660,534	$4M	0.29%	ADD 91%
24	AQR CAPITAL MANAGEMENT LLC	650,700650,700	$4M	0.29%	ADD 285%
25	MACKENZIE FINANCIAL CORP	589,100589,100	$4M	0.26%	NEW
26	Russell Investments Group, Ltd.	542,865542,865	$4M	0.24%	TRIM -42%
27	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	517,411517,411	$3M	0.23%	ADD 2%
28	GOLDMAN SACHS GROUP INC	515,735515,735	$3M	0.23%	ADD 40%
29	VANGUARD PORTFOLIO MANAGEMENT LLC	507,309507,309	$3M	0.22%	NEW
30	NORTHERN TRUST CORP	489,076489,076	$3M	0.22%	ADD 4%
31	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	452,640452,640	$3M	0.20%	NEW
32	HRT FINANCIAL LP	411,892411,892	$3M	0.18%	NEW
33	VANGUARD FIDUCIARY TRUST CO	404,548404,548	$3M	0.18%	NEW
34	SILVERCREST ASSET MANAGEMENT GROUP LLC	394,416394,416	$3M	0.17%	NEW
35	Sendero Wealth Management, LLC	390,797390,797	$3M	0.17%	—
36	CITIGROUP INC	384,712384,712	$3M	0.17%	TRIM -26%
37	EFG International AG	351,001351,001	$2M	0.15%	TRIM -5%
38	Private Capital Management, LLC	327,500327,500	$2M	0.14%	—
39	CITADEL ADVISORS LLC	280,361280,361	$2M	0.12%	ADD 339%
40	MILLENNIUM MANAGEMENT LLC	257,825257,825	$2M	0.11%	TRIM -19%
41	Invesco Ltd.	244,105244,105	$2M	0.11%	ADD 3%
42	Point72 Asset Management, L.P.	242,189242,189	$2M	0.11%	TRIM -37%
43	TUDOR INVESTMENT CORP ET AL	228,518228,518	$2M	0.10%	NEW
44	SEI INVESTMENTS CO	227,568227,568	$1M	0.10%	ADD 36%
45	Voleon Capital Management LP	220,174220,174	$1M	0.10%	TRIM -8%
46	GILDER GAGNON HOWE & CO LLC	217,877217,877	$1M	0.10%	TRIM -47%
47	ALGERT GLOBAL LLC	195,760195,760	$1M	0.09%	NEW
48	D. E. Shaw & Co., Inc.	182,785182,785	$1M	0.08%	NEW
49	Trexquant Investment LP	179,371179,371	$1M	0.08%	TRIM -44%
50	Register Financial Advisors LLC	171,200171,200	$1M	0.08%	—
51	Mariner, LLC	168,207168,207	$1M	0.07%	ADD 21%
52	Bank of New York Mellon Corp	156,242156,242	$1M	0.07%	TRIM -3%
53	Nuveen, LLC	149,991149,991	$985,441	0.07%	—
54	EntryPoint Capital, LLC	147,177147,177	$966,953	0.06%	ADD 60%
55	BNP PARIBAS FINANCIAL MARKETS	144,895144,895	$951,960	0.06%	ADD 73%
56	Swiss National Bank	134,100134,100	$881,037	0.06%	—
57	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	133,220133,220	$875,256	0.06%	TRIM -25%
58	SAPIENT CAPITAL LLC	127,760127,760	$839,383	0.06%	—
59	SANDLER CAPITAL MANAGEMENT	123,281123,281	$809,956	0.05%	TRIM -34%
60	AMERICAN CENTURY COMPANIES INC	118,731118,731	$780,063	0.05%	—
61	CANADA PENSION PLAN INVESTMENT BOARD	108,800108,800	$714,816	0.05%	ADD 54%
62	FMR LLC	106,262106,262	$698,142	0.05%	ADD 503%
63	GSA CAPITAL PARTNERS LLP	93,16493,164	$612,000	0.04%	ADD 14%
64	STRS OHIO	92,20092,200	$605,754	0.04%	TRIM -2%
65	Cornerstone Investment Partners, LLC	89,93889,938	$590,893	0.04%	ADD 4%
66	Brevan Howard Capital Management LP	87,01387,013	$571,676	0.04%	ADD 306%
67	ARISTEIA CAPITAL, L.L.C.	83,63083,630	$549,449	0.04%	ADD 98%
68	UBS Group AG	82,25282,252	$540,396	0.04%	—
69	RHUMBLINE ADVISERS	71,63571,635	$470,637	0.03%	TRIM -2%
70	VARCOV Co.	69,13569,135	$454,217	0.03%	NEW
71	Biondo Investment Advisors, LLC	69,00069,000	$453,330	0.03%	TRIM -34%
72	LPL Financial LLC	67,81167,811	$445,515	0.03%	ADD 3%
73	ALLIANCEBERNSTEIN L.P.	73,87073,870	$425,491	0.03%	TRIM -19%
74	Balyasny Asset Management L.P.	64,00964,009	$420,539	0.03%	ADD 130%
75	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	61,51461,514	$404,147	0.03%	—
76	Graham Capital Management, L.P.	59,93159,931	$393,747	0.03%	ADD 9%
77	Jump Financial, LLC	56,24256,242	$369,510	0.02%	—
78	IEQ CAPITAL, LLC	51,62051,620	$339,143	0.02%	NEW
79	Legal & General Group Plc	50,32350,323	$330,623	0.02%	TRIM -17%
80	DEUTSCHE BANK AG\	49,36049,360	$324,295	0.02%	ADD 14%
81	Numerai GP LLC	48,44648,446	$318,290	0.02%	NEW
82	Zurcher Kantonalbank (Zurich Cantonalbank)	46,93746,937	$308,376	0.02%	ADD 10%
83	Squarepoint Ops LLC	46,40246,402	$304,861	0.02%	TRIM -81%
84	AMERIPRISE FINANCIAL INC	42,16142,161	$276,998	0.02%	NEW
85	PRICE T ROWE ASSOCIATES INC /MD/	40,78840,788	$268,000	0.02%	ADD 11%
86	WELLS FARGO & COMPANY/MN	39,38239,382	$258,740	0.02%	TRIM -54%
87	Cetera Investment Advisers	39,02939,029	$256,421	0.02%	TRIM -16%
88	FOX RUN MANAGEMENT, L.L.C.	38,52338,523	$243,080	0.02%	NEW
89	VANGUARD ASSET MANAGEMENT, Ltd	36,44936,449	$239,470	0.02%	NEW
90	MANUFACTURERS LIFE INSURANCE COMPANY, THE	34,29334,293	$225,305	0.02%	—
91	PREVAIL INNOVATIVE WEALTH ADVISORS, LLC	33,22133,221	$218,262	0.01%	NEW
92	MetLife Investment Management, LLC	32,20532,205	$211,587	0.01%	ADD 30%
93	RENAISSANCE TECHNOLOGIES LLC	31,65631,656	$207,980	0.01%	NEW
94	SUSQUEHANNA INTERNATIONAL GROUP, LLP	30,43230,432	$199,938	0.01%	ADD 163%
95	TWO SIGMA INVESTMENTS, LP	30,15230,152	$198,099	0.01%	ADD 8%
96	ENVESTNET ASSET MANAGEMENT INC	29,15129,151	$191,522	0.01%	NEW
97	JANUS HENDERSON GROUP PLC	28,80028,800	$189,216	0.01%	—
98	M&T Bank Corp	28,02128,021	$184,097	0.01%	TRIM -7%
99	9823 Capital, L.P.	27,59127,591	$181,272	0.01%	NEW
100	STONERIDGE INVESTMENT PARTNERS LLC	27,35927,359	$180,000	0.01%	—

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

Platinum Equity Advisors, LLC/DE

148.6M

156.7M

$1.0B

Canvas Wealth Advisors, LLC

4.1M

4.5M

4.8M

4.7M

7.1M

7.0M

$46M

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

3.7M

5.3M

5.2M

5.3M

5.4M

5.7M

$37M

DIMENSIONAL FUND ADVISORS LP

2.8M

3.4M

4.1M

4.4M

4.9M

5.6M

$37M

BlackRock, Inc.

3.7M

4.2M

4.3M

$28M

Allspring Global Investments Holdings, LLC

4.2M

4.3M

4.4M

4.2M

3.9M

$26M

Alyeska Investment Group, L.P.

2.0M

1.8M

2.5M

2.8M

$19M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.5M

$17M

Boston Partners

3.8M

3.2M

5.4M

5.5M

3.8M

2.0M

$13M

STATE STREET CORP

1.2M

1.3M

1.4M

1.5M

$10M

GEODE CAPITAL MANAGEMENT, LLC

1.2M

1.3M

1.4M

1.5M

$10M

Clearbridge Investments, LLC

1.9M

1.8M

1.5M

1.6M

1.4M

$9M

FIRST TRUST ADVISORS LP

965K

511K

478K

380K

1.2M

1.3M

$9M

BANK OF AMERICA CORP /DE/

1.3M

1.4M

1.8M

1.5M

1.2M

$8M

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

—

282K

414K

1.1M

$7M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	170	218,824,567	96.2%	$1.4B
2025-Q4	156	216,885,417	95.4%	$1.2B
2025-Q3	146	215,295,394	94.7%	$1.4B
2025-Q2	130	216,675,890	95.3%	$1.1B
2025-Q1	142	213,583,829	93.9%	$900M
2024-Q4	125	222,112,034	97.7%	$1.1B
2024-Q3	121	220,310,127	96.9%	$761M
2024-Q2	113	219,754,822	96.6%	$958M
2024-Q1	121	215,404,970	94.7%	$1.3B
2023-Q4	128	227,489,935	100.0%

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · CTOS

Activists — 13D, active intent

PLATINUM EQUITY, LLC69.6%NEWSCHEDULE 13D/A · Amd 2 · event 2025-01-30SEC →

156,743,635 shares · 12 reporting persons

“Item 4 of the Schedule 13D is hereby amended and supplemented as follows: Stock Purchase Agreement Item 3 above summarizes the ECP Stock Purchase Agreement and is incorporated herein by reference. General The Reporting Persons acquired the securities described in this Schedule 13D for investment purposes and they intend to review their investments in the Issuer on a continuing basis. Any actions the Reporting Persons might undertake will be dependent upon the Reporting Persons' review of numerou”

EIN MARK2.3%NEWSCHEDULE 13D/A · Amd 1 · event 2025-10-17SEC →

5,159,319 shares · 4 reporting persons

“Item 4 of the Schedule 13D is hereby amended and supplemented with the following: Distribution In-Kind On October 17, 2025, Management IV distributed 3,670,279 shares of Common Stock to its members without consideration on a pro rata basis. As part of this distribution, Mr. Ein acquired 3,553,612 shares of Common Stock.”

ECP ControlCo, LLC0%EXITEDSCHEDULE 13D/A · Amd 8 · event 2025-01-30SEC →

Institutional ownership· 13F filers holding CTOS · 2026-Q1 methodology → sources →

170 holders

% of shares outstanding held

96.2%

Shares held (13F)

218,824,567

Reporting holders

170

Top holders

largest 100 of 170 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	Platinum Equity Advisors, LLC/DE	156,743,635156.7M	$1.0B	68.92%	—
2	Canvas Wealth Advisors, LLC	7,019,5267.0M	$46M	3.09%	—
3	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	5,674,9185.7M	$37M	2.50%	ADD 4%
4	DIMENSIONAL FUND ADVISORS LP	5,602,8385.6M	$37M	2.46%	ADD 15%
5	BlackRock, Inc.	4,252,9724.3M	$28M	1.87%	—
6	Allspring Global Investments Holdings, LLC	3,914,1333.9M	$26M	1.72%	TRIM -7%
7	Alyeska Investment Group, L.P.	2,825,8202.8M	$19M	1.24%	ADD 13%
8	VANGUARD CAPITAL MANAGEMENT LLC	2,525,7442.5M	$17M	1.11%	NEW
9	Boston Partners	2,016,4062.0M	$13M	0.89%	TRIM -47%
10	STATE STREET CORP	1,486,0511.5M	$10M	0.65%	ADD 10%
11	GEODE CAPITAL MANAGEMENT, LLC	1,470,6361.5M	$10M	0.65%	ADD 2%
12	Clearbridge Investments, LLC	1,403,9651.4M	$9M	0.62%	TRIM -3%
13	FIRST TRUST ADVISORS LP	1,301,3511.3M	$9M	0.57%	ADD 6%
14	BANK OF AMERICA CORP /DE/	1,195,8361.2M	$8M	0.53%	TRIM -19%
15	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	1,056,5501.1M	$7M	0.46%	ADD 155%
16	HEARTLAND ADVISORS INC	1,000,0001.0M	$7M	0.44%	ADD 43%
17	MORGAN STANLEY	897,525897,525	$6M	0.39%	ADD 26%
18	INTRINSIC EDGE CAPITAL MANAGEMENT LLC	879,622879,622	$6M	0.39%	ADD 13%
19	BRIDGEWAY CAPITAL MANAGEMENT, LLC	845,115845,115	$6M	0.37%	ADD 9%
20	Empowered Funds, LLC	810,115810,115	$5M	0.36%	ADD 10%
21	First Eagle Investment Management, LLC	765,822765,822	$5M	0.34%	—
22	JPMORGAN CHASE & CO	770,219770,219	$5M	0.34%	ADD 2939%
23	JANE STREET GROUP, LLC	660,534660,534	$4M	0.29%	ADD 91%
24	AQR CAPITAL MANAGEMENT LLC	650,700650,700	$4M	0.29%	ADD 285%
25	MACKENZIE FINANCIAL CORP	589,100589,100	$4M	0.26%	NEW
26	Russell Investments Group, Ltd.	542,865542,865	$4M	0.24%	TRIM -42%
27	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	517,411517,411	$3M	0.23%	ADD 2%
28	GOLDMAN SACHS GROUP INC	515,735515,735	$3M	0.23%	ADD 40%
29	VANGUARD PORTFOLIO MANAGEMENT LLC	507,309507,309	$3M	0.22%	NEW
30	NORTHERN TRUST CORP	489,076489,076	$3M	0.22%	ADD 4%
31	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	452,640452,640	$3M	0.20%	NEW
32	HRT FINANCIAL LP	411,892411,892	$3M	0.18%	NEW
33	VANGUARD FIDUCIARY TRUST CO	404,548404,548	$3M	0.18%	NEW
34	SILVERCREST ASSET MANAGEMENT GROUP LLC	394,416394,416	$3M	0.17%	NEW
35	Sendero Wealth Management, LLC	390,797390,797	$3M	0.17%	—
36	CITIGROUP INC	384,712384,712	$3M	0.17%	TRIM -26%
37	EFG International AG	351,001351,001	$2M	0.15%	TRIM -5%
38	Private Capital Management, LLC	327,500327,500	$2M	0.14%	—
39	CITADEL ADVISORS LLC	280,361280,361	$2M	0.12%	ADD 339%
40	MILLENNIUM MANAGEMENT LLC	257,825257,825	$2M	0.11%	TRIM -19%
41	Invesco Ltd.	244,105244,105	$2M	0.11%	ADD 3%
42	Point72 Asset Management, L.P.	242,189242,189	$2M	0.11%	TRIM -37%
43	TUDOR INVESTMENT CORP ET AL	228,518228,518	$2M	0.10%	NEW
44	SEI INVESTMENTS CO	227,568227,568	$1M	0.10%	ADD 36%
45	Voleon Capital Management LP	220,174220,174	$1M	0.10%	TRIM -8%
46	GILDER GAGNON HOWE & CO LLC	217,877217,877	$1M	0.10%	TRIM -47%
47	ALGERT GLOBAL LLC	195,760195,760	$1M	0.09%	NEW
48	D. E. Shaw & Co., Inc.	182,785182,785	$1M	0.08%	NEW
49	Trexquant Investment LP	179,371179,371	$1M	0.08%	TRIM -44%
50	Register Financial Advisors LLC	171,200171,200	$1M	0.08%	—
51	Mariner, LLC	168,207168,207	$1M	0.07%	ADD 21%
52	Bank of New York Mellon Corp	156,242156,242	$1M	0.07%	TRIM -3%
53	Nuveen, LLC	149,991149,991	$985,441	0.07%	—
54	EntryPoint Capital, LLC	147,177147,177	$966,953	0.06%	ADD 60%
55	BNP PARIBAS FINANCIAL MARKETS	144,895144,895	$951,960	0.06%	ADD 73%
56	Swiss National Bank	134,100134,100	$881,037	0.06%	—
57	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	133,220133,220	$875,256	0.06%	TRIM -25%
58	SAPIENT CAPITAL LLC	127,760127,760	$839,383	0.06%	—
59	SANDLER CAPITAL MANAGEMENT	123,281123,281	$809,956	0.05%	TRIM -34%
60	AMERICAN CENTURY COMPANIES INC	118,731118,731	$780,063	0.05%	—
61	CANADA PENSION PLAN INVESTMENT BOARD	108,800108,800	$714,816	0.05%	ADD 54%
62	FMR LLC	106,262106,262	$698,142	0.05%	ADD 503%
63	GSA CAPITAL PARTNERS LLP	93,16493,164	$612,000	0.04%	ADD 14%
64	STRS OHIO	92,20092,200	$605,754	0.04%	TRIM -2%
65	Cornerstone Investment Partners, LLC	89,93889,938	$590,893	0.04%	ADD 4%
66	Brevan Howard Capital Management LP	87,01387,013	$571,676	0.04%	ADD 306%
67	ARISTEIA CAPITAL, L.L.C.	83,63083,630	$549,449	0.04%	ADD 98%
68	UBS Group AG	82,25282,252	$540,396	0.04%	—
69	RHUMBLINE ADVISERS	71,63571,635	$470,637	0.03%	TRIM -2%
70	VARCOV Co.	69,13569,135	$454,217	0.03%	NEW
71	Biondo Investment Advisors, LLC	69,00069,000	$453,330	0.03%	TRIM -34%
72	LPL Financial LLC	67,81167,811	$445,515	0.03%	ADD 3%
73	ALLIANCEBERNSTEIN L.P.	73,87073,870	$425,491	0.03%	TRIM -19%
74	Balyasny Asset Management L.P.	64,00964,009	$420,539	0.03%	ADD 130%
75	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	61,51461,514	$404,147	0.03%	—
76	Graham Capital Management, L.P.	59,93159,931	$393,747	0.03%	ADD 9%
77	Jump Financial, LLC	56,24256,242	$369,510	0.02%	—
78	IEQ CAPITAL, LLC	51,62051,620	$339,143	0.02%	NEW
79	Legal & General Group Plc	50,32350,323	$330,623	0.02%	TRIM -17%
80	DEUTSCHE BANK AG\	49,36049,360	$324,295	0.02%	ADD 14%
81	Numerai GP LLC	48,44648,446	$318,290	0.02%	NEW
82	Zurcher Kantonalbank (Zurich Cantonalbank)	46,93746,937	$308,376	0.02%	ADD 10%
83	Squarepoint Ops LLC	46,40246,402	$304,861	0.02%	TRIM -81%
84	AMERIPRISE FINANCIAL INC	42,16142,161	$276,998	0.02%	NEW
85	PRICE T ROWE ASSOCIATES INC /MD/	40,78840,788	$268,000	0.02%	ADD 11%
86	WELLS FARGO & COMPANY/MN	39,38239,382	$258,740	0.02%	TRIM -54%
87	Cetera Investment Advisers	39,02939,029	$256,421	0.02%	TRIM -16%
88	FOX RUN MANAGEMENT, L.L.C.	38,52338,523	$243,080	0.02%	NEW
89	VANGUARD ASSET MANAGEMENT, Ltd	36,44936,449	$239,470	0.02%	NEW
90	MANUFACTURERS LIFE INSURANCE COMPANY, THE	34,29334,293	$225,305	0.02%	—
91	PREVAIL INNOVATIVE WEALTH ADVISORS, LLC	33,22133,221	$218,262	0.01%	NEW
92	MetLife Investment Management, LLC	32,20532,205	$211,587	0.01%	ADD 30%
93	RENAISSANCE TECHNOLOGIES LLC	31,65631,656	$207,980	0.01%	NEW
94	SUSQUEHANNA INTERNATIONAL GROUP, LLP	30,43230,432	$199,938	0.01%	ADD 163%
95	TWO SIGMA INVESTMENTS, LP	30,15230,152	$198,099	0.01%	ADD 8%
96	ENVESTNET ASSET MANAGEMENT INC	29,15129,151	$191,522	0.01%	NEW
97	JANUS HENDERSON GROUP PLC	28,80028,800	$189,216	0.01%	—
98	M&T Bank Corp	28,02128,021	$184,097	0.01%	TRIM -7%
99	9823 Capital, L.P.	27,59127,591	$181,272	0.01%	NEW
100	STONERIDGE INVESTMENT PARTNERS LLC	27,35927,359	$180,000	0.01%	—

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

Platinum Equity Advisors, LLC/DE

148.6M

156.7M

$1.0B

Canvas Wealth Advisors, LLC

4.1M

4.5M

4.8M

4.7M

7.1M

7.0M

$46M

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

3.7M

5.3M

5.2M

5.3M

5.4M

5.7M

$37M

DIMENSIONAL FUND ADVISORS LP

2.8M

3.4M

4.1M

4.4M

4.9M

5.6M

$37M

BlackRock, Inc.

3.7M

4.2M

4.3M

$28M

Allspring Global Investments Holdings, LLC

4.2M

4.3M

4.4M

4.2M

3.9M

$26M

Alyeska Investment Group, L.P.

2.0M

1.8M

2.5M

2.8M

$19M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.5M

$17M

Boston Partners

3.8M

3.2M

5.4M

5.5M

3.8M

2.0M

$13M

STATE STREET CORP

1.2M

1.3M

1.4M

1.5M

$10M

GEODE CAPITAL MANAGEMENT, LLC

1.2M

1.3M

1.4M

1.5M

$10M

Clearbridge Investments, LLC

1.9M

1.8M

1.5M

1.6M

1.4M

$9M

FIRST TRUST ADVISORS LP

965K

511K

478K

380K

1.2M

1.3M

$9M

BANK OF AMERICA CORP /DE/

1.3M

1.4M

1.8M

1.5M

1.2M

$8M

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

—

282K

414K

1.1M

$7M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	170	218,824,567	96.2%	$1.4B
2025-Q4	156	216,885,417	95.4%	$1.2B
2025-Q3	146	215,295,394	94.7%	$1.4B
2025-Q2	130	216,675,890	95.3%	$1.1B
2025-Q1	142	213,583,829	93.9%	$900M
2024-Q4	125	222,112,034	97.7%	$1.1B
2024-Q3	121	220,310,127	96.9%	$761M
2024-Q2	113	219,754,822	96.6%	$958M
2024-Q1	121	215,404,970	94.7%	$1.3B
2023-Q4	128	227,489,935	100.0%

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · CTOS

Activists — 13D, active intent

PLATINUM EQUITY, LLC69.6%NEWSCHEDULE 13D/A · Amd 2 · event 2025-01-30SEC →

156,743,635 shares · 12 reporting persons

EIN MARK2.3%NEWSCHEDULE 13D/A · Amd 1 · event 2025-10-17SEC →

5,159,319 shares · 4 reporting persons

ECP ControlCo, LLC0%EXITEDSCHEDULE 13D/A · Amd 8 · event 2025-01-30SEC →

CTOS US Equity☆

Institutional ownership· 13F filers holding CTOS · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · CTOS

Institutional ownership· 13F filers holding CTOS · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · CTOS

CTOS US Equity