Custom Truck One Source, Inc.
DE ˙ DB ˙ US23204X1037
SecurityDE:65W0 / Custom Truck One Source, Inc.
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership1,301,351 shares
Latest Disclosed Value $ 8,549,876
First Trust Advisors Lp reports 6.42% increase in ownership of 65W0 / Custom Truck One Source, Inc.

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 1,301,351 shares of Custom Truck One Source, Inc. (DE:65W0) valued at $8,549,876 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,222,875 shares of Custom Truck One Source, Inc.. This represents a change in shares of 6.42% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,301,351 78,476 6.42 8,550 21.38 0.0061
2026-02-13 2025-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,222,875 842,964 221.88 7,044 188.77 0.0051
2025-11-12 2025-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 379,911 -97,673 -20.45 2,439 3.39 0.0018
2025-08-13 2025-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 477,584 -32,960 -6.46 2,359 9.52 0.0019
2025-05-14 2025-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 510,544 -454,027 -47.07 2,154 -53.57 0.0019
2025-02-13 2024-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 964,571 259,722 36.85 4,640 90.83 0.0041
2024-11-13 2024-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 704,849 136,476 24.01 2,432 -1.66 0.0023
2024-08-13 2024-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 568,373 209,778 58.50 2,472 18.45 0.0025
2024-05-13 2024-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 358,595 -32,096 -8.22 2,087 -13.55 0.0021
2024-02-13 2023-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 390,691 4,048 1.05 2,414 0.71 0.0026
2023-11-13 2023-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 386,643 -9,860 -2.49 2,397 -10.29 0.0028
2023-08-14 2023-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 396,503 -153,872 -27.96 2,672 -28.50 0.0030
2023-05-15 2023-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 550,375 110,274 25.06 3,737 34.38 0.0043
2023-02-09 2022-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 440,101 251,954 133.91 2,781 153.51 0.0033
2022-11-14 2022-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 188,147 -71,573 -27.56 1,097 -24.55 0.0014
2022-08-12 2022-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 259,720 209,415 416.29 1,454 244.55 0.0018
2022-05-13 2022-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 50,305 -122,093 -70.82 422 -69.40 0.0004
2022-02-08 2021-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 172,398 172,398 1,379 0.0013
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.