Custom Truck One Source
CTOS
142 hedge funds and large institutions have $900M invested in Custom Truck One Source in 2025 Q1 according to their latest regulatory filings, with 31 funds opening new positions, 45 increasing their positions, 38 reducing their positions, and 13 closing their positions.
138% more first-time investments, than exits
New positions opened: 31 | Existing positions closed: 13
100% more call options, than puts
Call options by funds: $4K | Put options by funds: $2K
18% more repeat investments, than reductions
Existing positions increased: 45 | Existing positions reduced: 38
14% more funds holding
Funds holding: 125 → 142 (+17)
0.5% less ownership
Funds ownership: 95.15% → 94.65% (-0.5%)
16% less capital invested
Capital invested by funds: $1.07B → $900M (-$169M)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PEA
Platinum Equity Advisors
Beverly Hills,
California
|
+$39.3M |
| 2 |
Mirae Asset Global ETFs Holdings
Causeway Bay,
Hong Kong
|
+$7.94M |
| 3 |
Dimensional Fund Advisors
Austin,
Texas
|
+$3.06M |
| 4 |
Goldman Sachs
New York
|
+$1.77M |
| 5 |
CWA
Canvas Wealth Advisors
Shawnee,
Kansas
|
+$1.74M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
EC
ECP ControlCo
Summit,
New Jersey
|
-$78.3M |
| 2 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$5.17M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$3.77M |
| 4 |
BDF
Black Diamond Financial
Towson,
Maryland
|
-$3.67M |
| 5 |
Boston Partners
Boston,
Massachusetts
|
-$3.03M |
CTOS Hedge Fund Activity: Q1 2025 in Review
142 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Custom Truck One Source (CTOS) for Q1 2025, worth a combined $900M — down 16% from $1.07B a quarter earlier.
Buyers outnumbered sellers: 31 funds opened new CTOS positions and 13 closed out — a net gain of 18 holders — while 45 added to existing stakes and 38 trimmed.
The largest buyer was Platinum Equity Advisors, adding an estimated $39.3M. The largest seller was ECP ControlCo, exiting entirely with an estimated $78.3M sold.
- 142 institutional investors held Custom Truck One Source (CTOS) as of Q1 2025, up from 125 in Q4 2024.
- Funds reported $900M of Custom Truck One Source stock for Q1 2025, down 16% quarter-over-quarter.
- 31 funds opened new Custom Truck One Source positions in Q1 2025 and 13 closed out, a net change of +18 holders.
- The largest Custom Truck One Source buyer in Q1 2025 was Platinum Equity Advisors, an estimated $39.3M added.
- The largest Custom Truck One Source seller in Q1 2025 was ECP ControlCo, an estimated $78.3M sold.
Based on aggregated 13F filings for Q1 2025.