Platinum Equity Advisors, LLC/DE — 13F Holdings & Portfolio

CIK 1803274 · latest 13F-HR filed 2026-05-15

Platinum Equity Advisors, LLC/DE manages $8.88B in 13F-reported U.S. long-equity assets across 6 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are INGM (51.75%), MH (25.48%), CTOS (11.60%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 1 new position, exited 0, added to 1, and trimmed 2.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM

$8.88B

Long-equity book

Holdings

6

Distinct positions

Period

2026-03-31

Filed 2026-05-15

Q/Q Activity

+1 / −0 / ↑1 / ↓2

vs 2025-12-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • CUSTOM TRUCK ONE SOURCE INC$127.0M +14.1%
Show all 1

Top Trims

  • MCGRAW HILL INC-$462.4M -17.0%
  • RYERSON HLDG CORP-$10.5M -10.7%
Show all 2

New Positions

  • GPGI INC$903.4M
Show all 1

Exited Positions

  • No exits this quarter.
Show all 0
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 INGRAM MICRO HLDG CORP INGM 457152106 $4.59B 51.75% 197,104,541 SH
2 MCGRAW HILL INC MH 580907103 $2.26B 25.48% 165,160,216 SH
3 CUSTOM TRUCK ONE SOURCE INC CTOS 23204X103 $1.03B 11.60% 156,743,635 SH
4 GPGI INC GPGI 20459V105 $903.4M 10.17% 52,829,757 SH
5 RYERSON HLDG CORP RYZ 783754104 $88.2M 0.99% 3,924,478 SH
6 INTERNATIONAL MNY EXPRESS IN IMXI 46005L101 $505.9K 0.01% 32,016 SH
Filing History
Period Filed AUM Holdings Accession
2026-03-31 2026-05-15 $8.88B 6 0001104659-26-061874
2025-12-31 2026-02-17 $8.23B 5 0001104659-26-015702
2025-09-30 2026-01-06 $447.3K 1 0001104659-26-001207