Arrowstreet Capital’s Custom Truck One Source CTOS Stock Holding History

Arrowstreet Capital’s Portfolio CTOS Stock Details CTOS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$6.94M	Buy	1,056,550 +642,109	+155%	+$4.22M	﹤0.01%	1057
2025 Q4	$2.39M	Buy	414,441 +132,725	+47%	+$810K	﹤0.01%	1355
2025 Q3	$1.81M	Buy	+281,716	New	+$1.63M	﹤0.01%	1466
2020 Q1	–	Sell	-32,478	Closed	-$133K	–	1905
2019 Q4	$133K	Sell	32,478 -157,339	-83%	-$689K	﹤0.01%	1649
2019 Q3	$1.14M	Buy	189,817 +53,075	+39%	+$415K	﹤0.01%	1128
2019 Q2	$1.4M	Buy	+136,742	New	+$1.4M	﹤0.01%	989

Other funds holding CTOS

PEA

Platinum Equity Advisors Beverly Hills, California $8.88B AUM 27.09% 1-Year Est. Return

CWA

Canvas Wealth Advisors Shawnee, Kansas $717M AUM 41.56% 1-Year Est. Return

Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Arrowstreet Capital's CTOS Position: Q1 2026 in Review

Arrowstreet Capital increased its Custom Truck One Source (CTOS) stake by 155% in Q1 2026, buying an estimated $4.22M and bringing the position to 1,056,550 shares worth $6.94M. The position accounts for ﹤0.01% of the portfolio, ranked #1057.

Arrowstreet Capital first reported a position in CTOS in Q2 2019 and has held it in 6 quarters since. 174 funds tracked by Wall St. Rank hold CTOS as of Q1 2026.

Arrowstreet Capital held 1,056,550 shares of Custom Truck One Source worth $6.94M as of Q1 2026.
Arrowstreet Capital bought 642,109 Custom Truck One Source shares in Q1 2026, an estimated $4.22M.
Custom Truck One Source made up ﹤0.01% of Arrowstreet Capital's portfolio in Q1 2026, its #1057 holding.
Arrowstreet Capital first reported a position in Custom Truck One Source in Q2 2019 and has held it in 6 quarters since.
174 funds tracked by Wall St. Rank held Custom Truck One Source as of Q1 2026.

Based on Arrowstreet Capital's 13F filing for Q1 2026, filed 14 May 2026.