Custom Truck One Source, Inc.
DE ˙ DB ˙ US23204X1037
SecurityDE:65W0 / Custom Truck One Source, Inc.
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership770,219 shares
Latest Disclosed Value $ 4,860,082
Jpmorgan Chase & Co reports 2,938.82% increase in ownership of 65W0 / Custom Truck One Source, Inc.

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 770,219 shares of Custom Truck One Source, Inc. (DE:65W0) valued at $4,860,082 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 25,346 shares of Custom Truck One Source, Inc.. This represents a change in shares of 2,938.82% 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.

Upgrade to unlock premium data and export to Excel .

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/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 770,219 744,873 2,938.82 4,860 3,251.72 0.0000
2026-02-11 2025-12-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 25,346 -299 -1.17 146 -11.59 0.0000
2025-11-26 2025-09-30 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 25,645 -3,777 -12.84 165 13.10 0.0000
2025-11-07 2025-09-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 25,645 -3,777 165 0.0000
2025-08-12 2025-06-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 29,422 4,058 16.00 145 35.51 0.0000
2025-05-12 2025-03-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 25,364 2,200 9.50 107 -3.60 0.0000
2025-02-12 2024-12-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 23,164 -469,247 -95.30 111 -93.46 0.0000
2024-12-26 2024-09-30 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 492,411 445,038 939.43 1,699 724.27 0.0001
2024-11-08 2024-09-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 492,411 445,038 1,699 0.0001
2024-12-26 2024-06-30 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 47,373 1,959 4.31 206 -21.97 0.0000
2024-08-12 2024-06-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 47,373 1,959 206 0.0000
2024-12-26 2024-03-31 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 45,414 -31,523 -40.97 264 -44.42 0.0000
2024-05-10 2024-03-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 45,414 -31,523 264 0.0000
2024-12-26 2023-12-31 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 76,937 -485,243 -86.31 475 -86.37 0.0000
2024-02-12 2023-12-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 76,937 -485,243 475 0.0000
2023-11-14 2023-09-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 562,180 479,860 582.92 3,486 529.06 0.0004
2023-08-11 2023-06-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 82,320 5,238 6.80 555 5.73 0.0001
2023-05-18 2023-03-31 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 77,082 14,483 23.14 524 0.0001
2023-05-11 2023-03-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 1,178 -61,421 213 0.0000
2023-02-13 2022-12-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 62,599 6,033 10.67 0 -100.00 0.0001
2022-11-14 2022-09-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 56,566 5,863 11.56 329 15.85 0.0000
2022-08-11 2022-06-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 50,703 9,197 22.16 284 -18.62 0.0000
2022-05-11 2022-03-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 41,506 11,063 36.34 349 43.03 0.0000
2022-02-11 2021-12-31 13F/A-1 CUSTOM TRUCK ONE SOURCE COMMON 23204X103 30,443 13,396 78.58 244 53.46 0.0000
2022-02-10 2021-12-31 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 30,443 13,396 244 0.0000
2021-11-12 2021-09-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 17,047 12,030 239.78 159 231.25 0.0000
2021-08-12 2021-06-30 13F CUSTOM TRUCK ONE SOURCE COMMON 23204X103 5,017 -28,214 -84.90 48 -84.52 0.0000
2021-05-12 2021-03-31 13F NESCO HLDGS COMMON 64083J104 33,231 -899 -2.63 310 23.51 0.0000
2021-02-19 2020-12-31 13F/A-1 NESCO HLDGS COMMON 64083J104 34,130 25,999 319.75 251 660.61 0.0000
2021-02-11 2020-12-31 13F NESCO HLDGS COMMON 64083J104 34,130 25,999 251 6.2074
2020-11-12 2020-09-30 13F/A-1 NESCO HLDGS COMMON 64083J104 8,131 3,672 82.35 33 83.33 0.0000
2020-11-12 2020-09-30 13F NESCO HLDGS COMMON 64083J104 8,131 33
2020-08-11 2020-06-30 13F NESCO HLDGS COMMON 64083J104 4,459 4,459 18 -89.53 0.0000
2020-02-11 2019-12-31 13F NESCO HLDGS COMMON 64083J104 0 -25,021 -100.00 0 -100.00
2019-11-12 2019-09-30 13F NESCO HLDGS COMMON 64083J104 25,021 25,021 150 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.