HCM IV Acquisition Corp. — fact timeline

HCM IV Acquisition Corp. entered into Underwriter Warrant Purchase Agreement with Cantor Fitzgerald & Co. (effective 2026-02-11).

“A Private Placement Warrants Purchase Agreement, dated February 11, 2026 (the “ Underwriter Warrant Purchase Agreement ,” and together with the Sponsor Warrant Purchase Agreement, the “ Warrant Purchase Agreements ”), by and between the Company and the Underwriter, a copy of which is attached as Exhibit 10.3(b) hereto and incorporated herein by reference.”

HCM IV Acquisition Corp. entered into Sponsor Warrant Purchase Agreement with HCM Investor Holdings IV, LLC (effective 2026-02-11).

“A Private Placement Warrants Purchase Agreement, dated February 11, 2026 (the “ Sponsor Warrant Purchase Agreement ”), by and between the Company and the Sponsor, a copy of which is attached as Exhibit 10.3(a) hereto and incorporated herein by reference.”

HCM IV Acquisition Corp. entered into Registration Rights Agreement with HCM Investor Holdings IV, LLC and Cantor Fitzgerald & Co. (effective 2026-02-11).

“A Registration Rights Agreement, dated February 11, 2026, by and among the Company, the Company’s sponsor, HCM Investor Holdings IV, LLC (the “ Sponsor ”) and the Underwriter, a copy of which is attached as Exhibit 10.2 hereto and incorporated herein by reference.”

HCM IV Acquisition Corp. entered into Warrant Agreement with Continental Stock Transfer & Trust Company (effective 2026-02-11).

“A Warrant Agreement, dated February 11, 2026, by and between the Company and Continental Stock Transfer & Trust Company, as warrant agent, a copy of which is attached as Exhibit 4.1 hereto and incorporated herein by reference.”

HCM IV Acquisition Corp. entered into Underwriting Agreement with Cantor Fitzgerald & Co. (effective 2026-02-11).

“An Underwriting Agreement, dated February 11, 2026, by and among the Company, Cantor Fitzgerald & Co. (the “ Underwriter ”), a copy of which is attached as Exhibit 1.1 hereto and incorporated herein by reference.”