Custom Truck One Source, Inc.
DE ˙ DB ˙ US23204X1037
SecurityDE:65W0 / Custom Truck One Source, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership120 shares
Latest Disclosed Value $ 788
Advisor Group Holdings, Inc. reports 92.20% decrease in ownership of 65W0 / Custom Truck One Source, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 120 shares of Custom Truck One Source, Inc. (DE:65W0) valued at $788 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,539 shares of Custom Truck One Source, Inc.. This represents a change in shares of -92.20% 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)
2026-05-15 2026-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 120 -1,419 -92.20 1 -100.00 0.0000
2026-02-17 2025-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,539 -1,006 -39.53 9 -46.67 0.0000
2025-11-14 2025-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,545 -1,588 -38.42 16 -25.00 0.0000
2025-09-04 2025-06-30 13F/A-1 CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 4,133 3,308 400.97 20 566.67 0.0000
2025-08-13 2025-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,206 1,381 11 0.0000
2025-05-12 2025-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 825 -1,334 -61.79 3 -70.00 0.0000
2025-06-06 2024-12-31 13F/A-1 CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,159 0 0.00 10 42.86 0.0000
2025-02-07 2024-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 859 -1,300 3 0.0000
2024-11-13 2024-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,159 890 70.13 7 40.00 0.0000
2024-08-13 2024-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,269 194 18.05 6 -16.67 0.0000
2024-05-10 2024-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,075 -2,250 -67.67 6 -70.00 0.0000
2024-02-12 2023-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 3,325 49 1.50 21 0.00 0.0000
2023-11-13 2023-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 3,276 688 26.58 20 17.65 0.0000
2023-08-21 2023-06-30 13F/A-1 CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,588 -11,695 -81.88 17 -82.29 0.0000
2023-08-10 2023-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,588 -11,695 17 0.0000
2023-05-12 2023-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 14,283 9,780 217.19 97 242.86 0.0002
2023-02-10 2022-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 4,503 -32 -0.71 28 7.69 0.0001
2022-11-14 2022-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 4,535 -762 -14.39 26 -13.33 0.0001
2022-08-10 2022-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 5,297 1,631 44.49 30 -3.23 0.0001
2022-05-04 2022-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 3,666 2,499 214.14 31 244.44 0.0001
2022-02-03 2021-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,167 1,113 2,061.11 9 800.00 0.0000
2021-11-05 2021-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 54 -1,621 -96.78 1 -93.75 0.0000
2021-08-02 2021-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,675 -102 -5.74 16 0.00 0.0000
2021-05-13 2021-03-31 13F NESCO HLDGS COM 64083J104 1,777 18 1.02 16 33.33 0.0000
2021-02-10 2020-12-31 13F NESCO HLDGS COM 64083J104 1,759 -15 -0.85 12 50.00 0.0000
2020-11-12 2020-09-30 13F NESCO HLDGS COM 64083J104 1,774 -96 -5.13 8 0.00 0.0000
2020-08-14 2020-06-30 13F NESCO HLDGS COM 64083J104 1,870 -178 -8.69 8 14.29 0.0000
2020-05-18 2020-03-31 13F NESCO HLDGS COM 64083J104 2,048 2,048 7 0.0000
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.