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

SecurityCTOS / Custom Truck One Source, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership104,435 shares
Latest Disclosed Value $ 515,908
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 29.32% increase in ownership of CTOS / Custom Truck One Source, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 104,435 shares of Custom Truck One Source, Inc. (US:CTOS) valued at $515,909 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 80,758 shares of Custom Truck One Source, Inc.. This represents a change in shares of 29.32% during the quarter. The current value of the position is $1,010,931 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)
2025-08-26 2025-06-30 NP Custom Truck One Source EC US23204X1037 104,435 23,677 29.32 516 51.47 0.0116
2025-05-28 2025-03-31 NP Custom Truck One Source EC US23204X1037 80,758 0 0.00 341 -12.37 0.0082
2025-02-25 2024-12-31 NP Custom Truck One Source EC US23204X1037 80,758 -18,740 -18.83 388 13.12 0.0085
2024-11-26 2024-09-30 NP Custom Truck One Source EC US23204X1037 99,498 -10,662 -9.68 343 -28.39 0.0065
2024-08-26 2024-06-30 NP Custom Truck One Source EC US23204X1037 110,160 9,271 9.19 479 -18.40 0.0098
2024-05-28 2024-03-31 NP Custom Truck One Source EC US23204X1037 100,889 0 0.00 587 -5.78 0.0123
2024-02-26 2023-12-31 NP Custom Truck One Source EC US23204X1037 100,889 6,408 6.78 623 6.50 0.0133
2023-11-28 2023-09-30 NP Custom Truck One Source EC US23204X1037 94,481 -6,522 -6.46 586 -13.97 0.0153
2023-08-25 2023-06-30 NP Custom Truck One Source EC US23204X1037 101,003 8,667 9.39 681 8.63 0.0161
2023-05-26 2023-03-31 NP Custom Truck One Source EC US23204X1037 92,336 0 0.00 627 7.38 0.0167
2023-02-24 2022-12-31 NP Custom Truck One Source EC US23204X1037 92,336 -5,965 -6.07 584 1.75 0.0161
2022-11-25 2022-09-30 NP Custom Truck One Source EC US23204X1037 98,301 7,160 7.86 573 12.35 0.0164
2022-08-25 2022-06-30 NP Custom Truck One Source EC US23204X1037 91,141 5,676 6.64 510 -28.87 0.0141
2022-05-26 2022-03-31 NP Custom Truck One Source EC US23204X1037 85,465 16,148 23.30 717 29.42 0.0167
2022-02-25 2021-12-31 NP Custom Truck One Source EC US23204X1037 69,317 0 0.00 555 -14.24 0.0120
2021-11-24 2021-09-30 NP Custom Truck One Source EC US23204X1037 69,317 48,781 237.54 647 231.28 0.0142
2021-08-26 2021-06-30 NP Custom Truck One Source EC US23204X1037 20,536 0 0.00 196 1.56 0.0042
2021-05-27 2021-03-31 NP Nesco Holdings EC US64083J1043 20,536 0 0.00 192 27.15 0.0044
2021-02-25 2020-12-31 NP Nesco Holdings EC US64083J1043 20,536 0 0.00 151 77.65 0.0039
2020-11-25 2020-09-30 NP Nesco Holdings EC US64083J1043 20,536 0 0.00 85 3.66 0.0027
2020-08-27 2020-06-30 NP Nesco Holdings EC US64083J1043 20,536 20,536 83 0.0027
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.