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ISSUER PROFILE · CIK 0001709682 · CUSIP 23204X103

Custom Truck One Source, Inc.CTOS

8 13D/G filings 3 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 2 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
8
2 SCHEDULE · 6 SC
Distinct filers
3
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
2.60
as of 2026-05-29

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $2.22M
Point72 Asset Mgmt

13D/G Filings Timeline · 8 total

FiledFormFilerStakeSharesIntent
2025-02-03 SCHEDULE PLATINUM EQUITY, LLC 69.60% 156,743,635 view →
2025-02-03 SCHEDULE ECP ControlCo, LLC view →
2022-02-22 SC Blackstone Holdings III L.P. view →
2021-12-29 SC ECP ControlCo, LLC view →
2021-11-23 SC Blackstone Holdings III L.P. view →
2021-04-13 SC ECP ControlCo, LLC view →
2021-04-05 SC PLATINUM EQUITY LLC view →
2020-12-07 SC ECP ControlCo, LLC view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 2,096,135 2.60 +2.1%
2026-05-15 2,052,289 1.57 +19.7%
2026-04-30 1,714,631 1.28 -23.0%
2026-04-15 2,225,990 3.05 +13.5%
2026-03-31 1,961,641 2.65 +5.1%
2026-03-13 1,866,150 1.82 +6.1%
2026-02-27 1,758,769 2.04 -7.7%
2026-02-13 1,904,520 1.98 -5.8%
2026-01-30 2,021,798 2.85 -3.4%
2026-01-15 2,093,492 1.95 -2.6%
2025-12-31 2,150,529 2.82 -14.5%
2025-12-15 2,514,969 3.77 -9.7%

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