Alyeska Investment Group, L.P.

Position in CTOS — Custom Truck One Source, Inc.

CIK 1453072 CHICAGO, IL

Back to CTOS Full portfolio

Position in CTOS

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$19,395,929

+$830,292 QoQ

Shares Held

1,642,331

-41.9% QoQ

Ownership

0.722%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

#11

of 184 holders

Holding Since

Jun 2021

21 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in CTOS Over Time

Shares Held

Position Value (USD)

Derivatives in CTOS

reported options exposure · as of Jun 30, 2024

CallValue

$2,086,225

CallShares

479,592

PutValue

PutShares

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Rental & Leasing Services

Industrials · as of Jun 30, 2026

Alyeska Investment Group, L.P. holds $215,329,395 across 5 Rental & Leasing Services names. CTOS ranks #4 (9.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WSC	WillScot Holdings Corp	3,053,407	$88,121,326
2	AER	AerCap Holdings N.V.	462,066	$67,359,981
3	MGRC	Mcgrath Rentcorp	330,702	$40,024,863
4	CTOS	Custom Truck One Source, Inc. This page	1,642,331	$19,395,929
5	HRI	Herc Holdings Inc	2,981	$427,296

All Filings in CTOS

Export CSV

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$19,395,929	1,642,331	-41.9%	Shares	Sole	2026-08-14
2026-03-31	$18,565,637	2,825,820	+13.0%	Shares	Sole	2026-05-15
2025-12-31	$14,401,319	2,500,229	+42.9%	Shares	Sole	2026-02-13
2025-09-30	$11,236,470	1,750,229	-14.5%	Shares	Sole	2025-11-17
2025-06-30	$10,114,768	2,047,524	+1.7%	Shares	Sole	2025-08-14
2025-03-31	$8,497,645	2,013,660	+2.9%	Shares	Sole	2025-05-15
2024-12-31	$9,413,314	1,957,030	-4.7%	Shares	Sole	2025-02-14
2024-09-30	$7,082,491	2,052,896	-12.9%	Shares	Sole	2024-11-14
2024-06-30	$10,252,384	2,356,870	+27.3%	Shares	Sole	2024-08-14
2024-06-30	$2,086,225	479,592	0.0%	Call	Sole	2024-08-14
2024-03-31	$10,774,566	1,851,300	-5.9%	Shares	Sole	2024-05-15
2023-12-31	$12,155,954	1,966,983	-38.2%	Shares	Sole	2024-02-14
2023-12-31	$2,963,878	479,592	0.0%	Call	Sole	2024-02-14
2023-09-30	$19,745,251	3,184,718	+5.1%	Shares	Sole	2023-11-14
2023-06-30	$20,430,746	3,031,268	+7.8%	Shares	Sole	2023-08-14
2023-06-30	$3,232,450	479,592	—	Call	Sole	2023-08-14
2023-03-31	$19,084,890	2,810,735	-10.1%	Shares	Sole	2023-05-15
2022-12-31	$19,767,316	3,127,740	-3.7%	Shares	Sole	2023-02-14
2022-09-30	$18,928,051	3,246,664	-7.3%	Shares	Sole	2022-11-14
2022-06-30	$19,612,600	3,502,250	-0.1%	Shares	Sole	2022-08-15
2022-03-31	$29,413,829	3,505,820	+2.0%	Shares	Sole	2022-05-17
2021-12-31	$27,483,272	3,435,409	+1.1%	Shares	Sole	2022-02-14
2021-09-30	$31,701,259	3,397,777	-51.5%	Shares	Sole	2021-11-15
2021-06-30	$66,640,000	7,000,000	—	Shares	Sole	2021-08-16
No filing history on record for this holder in this stock.