Custom Truck One Source, Inc.
DE ˙ DB ˙ US23204X1037
SecurityDE:65W0 / Custom Truck One Source, Inc.
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership515,735 shares
Latest Disclosed Value $ 3,388,379
Goldman Sachs Group Inc reports 39.68% increase in ownership of 65W0 / Custom Truck One Source, Inc.

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 515,735 shares of Custom Truck One Source, Inc. (DE:65W0) valued at $3,388,379 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 369,226 shares of Custom Truck One Source, Inc.. This represents a change in shares of 39.68% 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 CMN 23204X103 515,735 146,509 39.68 3,388 59.36 0.0001
2026-02-10 2025-12-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 369,226 92,008 33.19 2,127 19.51 0.0003
2025-11-14 2025-09-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 277,218 102,567 58.73 1,780 106.38 0.0002
2025-08-14 2025-06-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 174,651 -354,938 -67.02 863 -61.41 0.0001
2025-06-27 2025-03-31 13F/A-2 CUSTOM TRUCK ONE SOURCE CMN 23204X103 529,589 365,862 223.46 2,235 183.86 0.0004
2025-05-16 2025-03-31 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 529,589 365,862 2,235 0.0001
2025-05-09 2025-03-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 529,589 365,862 2,235 0.0001
2025-02-11 2024-12-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 163,727 3,552 2.22 788 42.57 0.0001
2024-11-14 2024-09-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 160,175 74,464 86.88 553 48.39 0.0001
2024-08-13 2024-06-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 85,711 24,144 39.22 373 3.91 0.0001
2024-05-15 2024-03-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 61,567 -5,174 -7.75 358 -13.11 0.0001
2024-05-14 2023-12-31 13F/A-2 CUSTOM TRUCK ONE SOURCE CMN 23204X103 66,741 -4,167 -5.88 412 -6.15 0.0001
2024-03-01 2023-12-31 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 66,741 -4,167 412 0.0000
2024-02-13 2023-12-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 66,741 -4,167 412 0.0000
2024-05-15 2023-09-30 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 70,908 -3,773 -5.05 440 -12.72 0.0001
2023-11-14 2023-09-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 70,908 -3,773 440 0.0001
2024-05-14 2023-06-30 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 74,681 5,783 8.39 503 7.71 0.0001
2023-08-15 2023-06-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 74,681 5,783 503 0.0001
2024-05-14 2023-03-31 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 68,898 -8,603 -11.10 468 -4.50 0.0001
2023-05-11 2023-03-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 68,898 -8,603 468 0.0001
2024-05-14 2022-12-31 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 77,501 23,119 42.51 490 0.0001
2023-02-13 2022-12-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 77,501 23,119 490 0.0001
2024-05-14 2022-09-30 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 54,382 10,019 22.58 0 0.0001
2022-11-14 2022-09-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 54,382 10,019 317 0.0001
2024-05-14 2022-06-30 13F/A-2 CUSTOM TRUCK ONE SOURCE CMN 23204X103 44,363 -961 -2.12 0 -100.00 0.0001
2022-08-18 2022-06-30 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 44,363 -961 248 0.0001
2022-08-15 2022-06-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 44,363 -961 248 0.0000
2022-05-16 2022-03-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 45,324 7,719 20.53 380 26.25 0.0001
2022-02-17 2021-12-31 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 37,605 8,080 27.37 301 9.06 0.0001
2022-02-14 2021-12-31 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 37,605 8,080 301 0.0000
2022-01-20 2021-09-30 13F/A-1 CUSTOM TRUCK ONE SOURCE CMN 23204X103 29,525 17,374 142.98 276 137.93 0.0001
2021-11-10 2021-09-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 29,525 17,374 276 0.0000
2021-08-13 2021-06-30 13F CUSTOM TRUCK ONE SOURCE CMN 23204X103 12,151 -68,902 -85.01 116 -84.70 0.0000
2021-05-17 2021-03-31 13F NESCO HLDGS CMN 64083J104 81,053 68,600 550.87 758 1,357.69 0.0002
2020-11-13 2020-09-30 13F NESCO HLDGS CMN 64083J104 12,453 -23,679 -65.53 52 -56.30 0.0000
2020-05-15 2020-03-31 13F NESCO HLDGS CMN 64083J104 36,132 36,132 119 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.