맞춤형 트럭 One Source, Inc.
US ˙ NYSE ˙ US23204X1037

SecurityCTOS / Custom Truck One Source, Inc.
InstitutionFmr Llc
Latest Disclosed Ownership106,262 shares
Latest Disclosed Value $ 698,142
Fmr Llc reports 502.94% increase in ownership of CTOS / Custom Truck One Source, Inc.

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 106,262 shares of Custom Truck One Source, Inc. (US:CTOS) valued at $698,141 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 17,624 shares of Custom Truck One Source, Inc.. This represents a change in shares of 502.94% during the quarter. The current value of the position is $1,062,620 USD.

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 106,262 88,638 502.94 698 591.09 0.0000
2026-02-17 2025-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 17,624 12,301 231.09 102 197.06 0.0000
2025-11-13 2025-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 5,323 -313,864 -98.33 34 -97.84 0.0000
2025-08-14 2025-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 319,187 306,094 2,337.84 1,577 2,765.45 0.0001
2025-05-12 2025-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 13,093 1,901 16.99 55 3.77 0.0000
2025-02-13 2024-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 11,192 -17,654 -61.20 54 -46.46 0.0000
2024-11-13 2024-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 28,846 26,685 1,234.84 100 1,000.00 0.0000
2024-08-13 2024-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,161 -13,815 -86.47 9 -90.22 0.0000
2024-05-13 2024-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 15,976 14,804 1,263.14 93 1,214.29 0.0000
2024-02-13 2023-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,172 -2,657,601 -99.96 7 -99.96 0.0000
2023-11-13 2023-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 2,658,773 -5,482,752 -67.34 16,484 -69.96 0.0014
2023-08-11 2023-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 8,141,525 -814,213 -9.09 54,874 -9.76 0.0046
2023-08-11 2023-03-31 13F/A-1 CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 8,955,738 -21,751 -0.24 60,809 7.18 0.0056
2023-05-11 2023-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 8,955,738 -21,751 60,809 0.0011
2023-02-13 2022-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 8,977,489 -100,643 -1.11 56,738 7.20 0.0056
2022-11-10 2022-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 9,078,132 265,692 3.01 52,926 7.25 0.0055
2022-08-12 2022-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 8,812,440 266,911 3.12 49,349 -31.17 0.0049
2022-05-13 2022-03-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 8,545,529 2,752,116 47.50 71,697 54.69 0.0057
2022-02-14 2021-12-31 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 5,793,413 1,307,397 29.14 46,348 10.74 0.0034
2022-02-14 2021-09-30 13F/A-1 CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 4,486,016 3,045,846 211.49 41,854 205.28 0.0033
2021-11-15 2021-09-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 4,486,016 3,045,846 41,854 0.0006
2021-08-13 2021-06-30 13F CUSTOM TRUCK ONE SOURCE COM CL A 23204X103 1,440,170 -495 -0.03 13,710 1.78 0.0011
2021-05-14 2021-03-31 13F NESCO HLDGS COM 64083J104 1,440,665 1,440,665 13,470 0.0012
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.