Craig Goos - 31 Jul 2025 Form 4 Insider Report for HCM III ACQUISITION CORP. (HCMA)

Role: Director
Signature: /s/ Craig Goos, by Steven Bischoff with Power of Attorney
Issuer symbol: HCMA
Transactions as of: 31 Jul 2025
Transactions value $: $100
Form type: 4
Filing time: 05 Aug 2025, 21:08:25 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Goos Craig	Director	C/O HCM III ACQUISITION CORP., 100 FIRST STAMFORD PLACE, SUITE 330, STAMFORD	/s/ Craig Goos, by Steven Bischoff with Power of Attorney	05 Aug 2025	0001446464

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	HCMA	Class B Ordinary Shares	Other	$100	+25K		$0.00	25K	31 Jul 2025	Class A Ordinary Shares	25K		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Class B ordinary shares are automatically convertible into the shares of the Issuer's Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date. The Class B ordinary shares are subject to forfeiture under certain circumstances relating to Mr. Goos' service on the Issuer's Board of Directors.
F2	As contemplated by the securities purchase agreement between HCM Investor Holdings III, LLC (the "Sponsor") and Mr. Goos, dated July 31, 2025, the Sponsor assigned 25,000 Class B ordinary shares to Mr. Goos in connection with Mr. Goos' appointment to the Issuer's Board of Directors.

Content

The Class B ordinary shares are automatically convertible into the shares of the Issuer's Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date. The Class B ordinary shares are subject to forfeiture under certain circumstances relating to Mr. Goos' service on the Issuer's Board of Directors.

As contemplated by the securities purchase agreement between HCM Investor Holdings III, LLC (the "Sponsor") and Mr. Goos, dated July 31, 2025, the Sponsor assigned 25,000 Class B ordinary shares to Mr. Goos in connection with Mr. Goos' appointment to the Issuer's Board of Directors.