HMH 424B3: Secondary offering
HMH Holding Inc.
Filed with the SEC on · accession 0001628280-26-070117
HMH filed a 424B3 (prospectus (offering)) with the SEC on Nov 4, 2026. HMH Holding Inc. filed a prospectus supplement (424B3) to update the resale registration statement covering up to 31,891,652 shares of Class A common stock held by selling stockholders, incorporating its Q3 2026 Form 10-Q. The stock moved -7.6% by the first close after the filing.
Summary of the filing
HMH Holding Inc. filed a prospectus supplement (424B3) to update the resale registration statement covering up to 31,891,652 shares of Class A common stock held by selling stockholders, incorporating its Q3 2026 Form 10-Q. The company will not receive any proceeds from the resales.
Key details
How HMH stock reacted
Close before
$16.66
Nov 3, 2026
First close after
-7.56%
$15.40
5 trading days
—
Since filing
-34.33%
$10.94
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Click hereFrequently asked questions
What did HMH file with the SEC on Nov 4, 2026?
HMH filed a 424B3 (Secondary offering). HMH Holding Inc. filed a prospectus supplement (424B3) to update the resale registration statement covering up to 31,891,652 shares of Class A common stock held by selling stockholders, incorporating its Q3 2026 Form 10-Q. The company will not receive any proceeds from the resales.
What does a secondary offering mean for HMH stock?
New shares dilute existing holders and are often sold at a discount to the market price.
How do I read a 424B3?
The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.
How did HMH stock react to this filing?
HMH closed at $16.66 before the filing and $15.40 on Nov 4, 2026 (-7.56%).
Other HMH SEC filings
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