Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G

Passive or exempt beneficial ownership filing.

Ownership

86%

Beneficial ownership of this reported class.

Shares

165,160,216 shares

Shares beneficially owned as disclosed.

Event date

30 Sep 2025

Date tied to the ownership event or amendment.

Accepted by SEC

13 Nov 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
MH
Shares outstanding
190,936,666 shares
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
SCHEDULE 13G
Accepted by SEC
13 Nov 2025, 16:30:37 UTC
Event date
30 Sep 2025
Source filing
View source filing

Key filing fact

PLATINUM EQUITY, LLC disclosed 86% ownership in McGraw Hill, Inc. Common stock, par value $0.01 (MH) on 30 Sep 2025.

Key facts

  • PLATINUM EQUITY, LLC filed SCHEDULE 13G for McGraw Hill, Inc. Common stock, par value $0.01 (MH).
  • Disclosed ownership: 86%.
  • Date of event: 30 Sep 2025.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 13 Nov 2025, 16:30.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (7)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
PLATINUM EQUITY, LLC 86% 165,160,216 0 165,160,216 /s/ Mary Ann Sigler Mary Ann Sigler, Executive Vice President, Chief Financial Officer and Treasurer
Platinum Equity Investment Holdings, LLC 86% 165,160,216 0 165,160,216 /s/ Mary Ann Sigler Mary Ann Sigler, Vice President, Secretary and Treasurer
Platinum Equity Investment Holdings IC (Cayman), LLC 86% 165,160,216 0 165,160,216 /s/ Mary Ann Sigler Mary Ann Sigler, President
Platinum Equity InvestCo, L.P. 86% 165,160,216 0 165,160,216 By: Platinum Equity Investment Holdings IC (Cayman), LLC, its general partner, By: /s/ Mary Ann Sigler Mary Ann Sigler, President
Platinum Equity Investment Holdings V, LLC 86% 165,160,216 0 165,160,216 /s/ Barbara Velasco Barbara Velasco, Assistant Secretary
PE Mav Holdings, LLC 86% 165,160,216 0 165,160,216 /s/ Barbara Velasco Barbara Velasco, Assistant Secretary
Tom Gores 86% 165,160,216 0 165,160,216 /s/ Mary Ann Sigler Mary Ann Sigler, Attorney-in-Fact
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