HCM III ACQUISITION CORP.

This filing transitions the SPAC into a funded, public search phase, fixing the trust value at $253,000,000 and activating a 24-month completion window that expires on August 4, 2027, as disclosed in Note 1. The registrant reports $12,045,000 in deferred underwriting discounts, which remain payable only upon a successful business combination, alongside a recurring $15,000-per-month administrative services payment to a sponsor affiliate that ceases at combination or liquidation. Management states the Company has not engaged in substantive discussions with any target and requires a target with a fair market value equal to at least 80% of the net trust balance at signing. The Company holds $1,306,160 in operational cash outside the trust, maintains a $7,080 receivable from the Sponsor, and has reserved up to $1,500,000 in convertible working capital loan capacity, though none are currently outstanding. Warrant exercise economics are locked at $11.50 per whole share, exercisable 30 days post-business combination, and expire five years thereafter.

This filing establishes the baseline trust value (~$10.00 per share), the deal deadline, and the sponsor's conduct commitments. Investors can now track the trust balance, any extensions, and future business combination announcements against this initial setup.

This filing defines all key terms for the SPAC: trust per-share value, redemption mechanics, deadline for a business combination, sponsor economics (substantial dilution potential), and the conditions under which public shareholders can redeem. Investors must assess these terms, the sponsor's incentives, and the risks (including PFIC, excise tax, and investment company risks) before investing.

This filing does not alter the stated August 4, 2027 redemption deadline or the US$10 unit pricing, but it finalizes pre-effectiveness structural commitments. Per Item 14 and the attached legal certificate, the explicit trust account waiver by management removes non-public-share indemnification risk from shareholder redemption pools. The documented $6,400,000 private warrant commitment establishes sponsor alignment parallel to the lead underwriter representative’s purchase. Exhibit 16 includes consents naming Richard Donohoe, Craig Goos, and Jacob Loveless as director nominees, indicating board composition steps toward post-combination governance. As a routine compliance exhibit-only amendment, the filing satisfies Cayman authorization requirements and locks the 25% founder share ratio against the 25,300,000 unit ceiling without modifying trust administration mechanics, extension procedures, or redemption calendar dates.

HCM III Acquisition Corp. is a new SPAC raising up to $253 million (if over-allotment fully exercised) to search for a technology/software infrastructure target in financial services, real estate, or asset management. The filing details a complex sponsor structure with 26 institutional non-managing sponsor investors who will indirectly own about 49% of founder shares and about 75% of private placement warrants, creating alignment but also potential conflicts. Management has a track record: HCM I (MRNO) completed a business combination after high redemptions (83% of public shares redeemed), and HCM II (HOND) announced a merger with Terrestrial Energy. The prospectus highlights risks of dilution, the 24-month deadline, and the potential for the SPAC to be deemed an investment company. Key for investors: trust value is protected at $10, but redemptions could be high given the prior pattern.

This correspondence confirms the SEC is actively reviewing the IPO registration prior to effectiveness, a mandatory step before the SPAC can price its offering, secure trust account funding, and open any shareholder redemption period. The requested dilution disclosures, exhibit reconciliations, and auditor consent serve as procedural bottlenecks that typically postpone registration statement approval and, consequently, delay the initiation of merger negotiations and the deployment of capital toward acquisition targets. Until these comments are resolved, the company cannot finalize its public listing or begin its operational search. All references and numerical figures derive exclusively from the July 22, 2025, SEC Division of Corporation Finance letter.

The disclosure adds a new material risk: the company may liquidate trust investments into cash, which would reduce interest earned and the per-share amount public shareholders receive upon redemption or liquidation. It also provides full operating documents (underwriting agreement, charter) that define sponsor economics, founder-share conversion, and redemption mechanics. The filing signals the IPO is procedurally moving toward effectiveness, but provides no update on a business combination search.

These amendments finalize critical risk and control narratives before the offering closes, directly shaping how investors assess sponsor discipline, trust preservation, and equity dilution. Contractually barring interest withdrawals for excise taxes eliminates a potential drain on trust balance sheets, preserving capital for shareholder redemptions or merger consideration. Disclosing historical SPAC extension durations and redemption percentages establishes a verifiable baseline to evaluate whether HCM III’s sponsors repeat past delays or demand excessive deal concessions, directly informing the utility of the current search deadline as a leverage point for public holders. Highlighting that sponsor-affiliated investors are structurally motivated to approve transactions—even against public preference—signals potential downside for public holders if targets are suboptimal. Additionally, clarifying anti-dilution mechanics, cashless private warrant exercises, and warrant unit composition ('each unit contains on-third of one warrant') refines post-IPO liquidity expectations and equity percentage calculations. Updating fee disclosures and conflict-of-interest allocation rules among affiliated SPACs tightens insider alignment metrics and prevents future regulatory friction, ensuring the prospectus accurately reflects the economic incentives driving the search-phase strategy.

These comments delay registration effectiveness and force granular transparency on sponsor track record, historically forcing the manager to quantify prior extension usage and redemption rates—direct inputs for modeling capital preservation and target-acquisition discipline. Clarifying the 20% versus 25% conversion math and tax-withdrawal boundaries shapes the actual net proceeds flowing to the trust and available for combination financing. Demands for allocation protocols among multiple SPACs and explicit documentation of sponsor/independent director equity stakes address classic agency risks that often trigger misaligned voting behavior during redemption windows. Until amendments are cleared, the July 3, 2025 letter freezes acceleration requests, extending the pre-effective timeline without altering the August 4, 2027 deadline.

Establishes all core SPAC mechanics for investor evaluation: trust value, redemption terms, deadline, sponsor economics (nominal founder share cost creates strong incentive to close any deal), potential dilution from founder shares and warrants, and conflict-of-interest disclosures. The 24-month deadline is standard. The 15% redemption cap and non-managing sponsor investor structure (which could reduce public float and create aligned voting incentives) are notable features. The management team's track record (HCM I closed with MRNO after 83% redemptions; HCM II announced Terrestrial Energy deal) provides context but not a guarantee.

What changed: Annual report on Form 10-K for the fiscal year ended December 31, 2025, filed by HCM III Acquisition Corp., a blank-check special purpose acquisition company (SPAC) that completed its IPO on August 4, 2025 and has not yet identified a business combination target. This is the company's first 10-K since inception. Key developments: (1) IPO closed on August 4, 2025, selling 25,300,000 units at $10.00 each, raising $253.0 million; (2) trust account balance at year-end was $257,298,929 ($10.17 per public share) due to $4,298,929 in interest; (3) working capital outside trust totaled $1,015,282 with a surplus of $423,735; (4) management expressed substantial doubt about the company's ability to continue as a going concern; (5) no business combination discussions have been initiated; (6) sponsor transferred 25,000 founder shares to each of three independent directors; (7) non-managing sponsor investors indirectly hold 49.42% of founder shares and 90.6% of sponsor's private placement warrants; (8) advisory fee of $1,204,500 payable to an affiliate upon closing of a business combination. Why it matters: The trust value per share ($10.17) exceeds the $10.00 IPO price, providing a modest premium for redeeming shareholders. The company must complete an initial business combination by August 4, 2027 (24-month deadline). The going-concern warning highlights the risk of liquidation if no deal is reached. Sponsor conduct includes nominal cost for founder shares ($0.003-$0.004 per share) and potential conflicts of interest due to affiliates' involvement (Zenith advisory fees, Hondius Capital Management). The disclosure of non-managing sponsor investors reveals dilution structure and potential voting influence.

What changed: A Schedule 13G beneficial ownership report. The filing attributes the reporting holder designation to Meteora Capital, LLC. It contains zero disclosures regarding redemption deadlines, trust account valuation, extension provisions, business combination advancement, or sponsor conduct. It additionally contains no claims about customers, revenue, market size, strategy, technology, partnerships, litigation, or personnel attributed to any party. Why it matters: As a routine ownership disclosure lacking share quantities, target identifiers, or timeline amendments, the submission does not alter HCMA’s SEARCHING status, affect trust capital preservation, modify redemption windows, or signal sponsor accountability shifts. Tracking investors will find no mechanical or strategic update from this excerpt.

What changed: A Securities and Exchange Commission Schedule 13G, which is a regulatory disclosure form used to report the acquisition of beneficial ownership exceeding five percent of a class of equity securities. The provided filing text identifies HCM Investor Holdings III, LLC and Shawn Matthews as the reporting holders for HCMA. It contains no numerical holdings, acquisition dates, purpose statements, or references to redemption deadlines, trust balances, extension proposals, merger negotiation status, or sponsor conduct adjustments. Why it matters: Schedule 13G filings typically designate passive investment positions rather than active campaigns or tender offers. For shareholders monitoring HCM III Acquisition Corp., this excerpt confirms that these two parties maintained a reportable stake as of the November 14, 2025 filing date, but it delivers zero mechanical updates regarding the August 4, 2027 liquidation window, per-share trust value, or business combination timeline. Without attached exhibit schedules showing exact share counts or subsequent Form 4/13D filings, this document functions solely as a routine compliance checkpoint and does not alter the current SEARCHING status or trigger redemption or extension protocols.

What changed: Quarterly Report (Form 10-Q) for the period ended September 30, 2025, filed by HCM III Acquisition Corp., a blank check company that completed its IPO on August 4, 2025. This is the first 10-Q since the IPO. The IPO closed on August 4, 2025, raising $253,000,000 (25,300,000 units at $10.00, including full over-allotment). The trust account held $254,727,160 as of September 30, 2025, including $1,727,160 in interest income, resulting in a trust value of $10.07 per share. The company reported net income of $390,364 for the quarter (mostly from trust interest). It has $1,144,833 in cash outside trust and working capital of $1,129,082. No business combination target has been selected, and no substantive discussions have occurred. The deadline to complete a business combination is 24 months from the IPO (August 2027). No redemptions or extensions are reported. The sponsor and officers have agreed to standard lock-up and waiver provisions. Why it matters: This filing establishes the baseline post-IPO financial position for investors. The trust value per share is slightly above $10.00 due to interest, which is favorable. The company has sufficient working capital to continue its search. The absence of any target or substantive discussions confirms the SPAC is in early-stage searching. The document also confirms that the underwriters' over-allotment was fully exercised, increasing the trust size. The reported advisory fee expenses and reimbursements provide transparency on costs. No material changes to risk factors were noted.

What changed: A Form 8-K current report and accompanying press release announcing the commencement of separate trading for HCMA III Acquisition Corp.'s Class A ordinary shares and redeemable warrants. The company announced that beginning September 22, 2025, holders of units from its initial public offering—each originally comprising one Class A ordinary share and one-third of one warrant—may elect to separate those components into standalone securities. Following separation, only whole warrants will trade, with no fractional warrants issued. Investors must direct their brokers to contact Continental Stock Transfer & Trust Company to initiate the split. Unseparated units will retain the HCMAU symbol on Nasdaq, while the separated shares and warrants will trade under HCMA and HCMAW, respectively. The press release confirms each whole warrant entitles the holder to purchase one Class A ordinary share for $11.50 per share. Why it matters: This filing details a routine listing and capitalization adjustment that alters the tradability of HCMA's securities but leaves the acquisition timeline, redemption mechanics, and trust account structure unaffected. The document does not announce a business combination target, nor does it modify the stated search deadline or per-share trust balance. The company reiterated its organizational leadership in the attached press release: Chairman and CEO Shawn Matthews, President and CFO Steven Bischoff, alongside board members Richard Donohoe, Craig Goos, and Jacob Loveless. The stated strategy remains focused on completing a business combination with an established business of scale. For calendar trackers, this is an administrative event rather than a trigger for redemption or extension votes.

What changed: Quarterly Report (Form 10-Q) for the period ended June 30, 2025, filed by HCM III Acquisition Corp., a blank check company. This is the company's first quarterly report since inception (April 15, 2025). The IPO closed on August 4, 2025, after the quarter end, so the financial statements as of June 30, 2025, show only pre-IPO activity: formation costs, deferred offering costs, and a related-party promissory note. No business combination has been announced or discussed. The trust account was not yet funded at June 30, 2025; subsequent to quarter end, the company placed $253,000,000 ($10.00 per unit) in trust from the IPO and private placement warrants. Why it matters: The filing confirms the trust value ($10.00 per share) and the 24-month deadline to complete a business combination (by August 4, 2027). It also discloses that the sponsor has limited assets and may be unable to satisfy its indemnification obligations. The company has no target or substantive discussions with any target. The working capital loans available (up to $1.5 million) are convertible into warrants, which could dilute shareholders if used. The filing is routine for a newly public SPAC but provides the baseline terms for redemption mechanics and sponsor conduct.

What changed: Form 8-K Current Report announcing the consummation of an initial public offering, the concurrent private sale of warrants, the execution of an advisory agreement with a sponsor affiliate, and the issuance of an audited balance sheet. According to the registrant, the Company completed its IPO on August 4, 2025, selling 25,300,000 units at $10.00 per unit, which included the full exercise of a 3,300,000-unit overallotment option. Item 8.01 and the accompanying audited balance sheet state that $253,000,000 was deposited into a trust account administered by Continental Stock Transfer & Trust Company. Simultaneously, the Company sold 4,266,667 private placement warrants to the Sponsor and Cantor Fitzgerald & Co. for $6,400,000. The advisory agreement filed as Exhibit 10.1 establishes a combined compensation of 0.65% of the IPO gross proceeds (structured as a 0.20% Advisor IPO Fee payable at IPO closing and a 0.45% Advisor IBC Fee payable at the initial business combination), with the underwriters contractually obligated to reimburse the Company for these costs. The financial notes confirm that the Sponsor’s 8,433,333 Class B founder shares are no longer subject to forfeiture following the full over-allotment exercise. Why it matters: This filing transitions the SPAC into a funded, public search phase, fixing the trust value at $253,000,000 and activating a 24-month completion window that expires on August 4, 2027, as disclosed in Note 1. The registrant reports $12,045,000 in deferred underwriting discounts, which remain payable only upon a successful business combination, alongside a recurring $15,000-per-month administrative services payment to a sponsor affiliate that ceases at combination or liquidation. Management states the Company has not engaged in substantive discussions with any target and requires a target with a fair market value equal to at least 80% of the net trust balance at signing. The Company holds $1,306,160 in operational cash outside the trust, maintains a $7,080 receivable from the Sponsor, and has reserved up to $1,500,000 in convertible working capital loan capacity, though none are currently outstanding. Warrant exercise economics are locked at $11.50 per whole share, exercisable 30 days post-business combination, and expire five years thereafter.

What changed: Form 4 — insider ownership report filed under Section 16 of the Securities Exchange Act, disclosing securities transactions and holdings of HCM III Acquisition Corp. directors, officers, and principal shareholders. Per the filing, Director Richard Charles Donohoe reported no non-derivative transactions or holdings changes for the covered period. Regarding SPAC mechanics, the document contains no updates on the redemption deadline of 2027-08-04, the trust account value of $10 per share, any extension referendum, target acquisition progress, or sponsor conduct. No claims regarding customers, revenue, market size, strategy, technology, partnerships, litigation, or personnel changes were disclosed in this submission. Why it matters: Investors monitoring redemption liquidity, trust preservation, and executive alignment should treat this filing as standard regulatory transparency that does not alter expected cash flows or governance timelines. During the current SEARCHING status, a board member’s static equity position neither accelerates a de-SPAC merger nor increases redemption risk against the 2027-08-04 expiration. Because the filing introduces no pricing data, voting schedules, or operational metrics, it does not trigger immediate action items for trust valuation tracking or extension planning. Event-driven capital remains dependent on subsequent business combination disclosures rather than this routine compliance submission.

What changed: A Form 4 insider ownership report submitted to the SEC for HCM III ACQUISITION CORP., identifying Director, Chairman, and CEO Matthews Shawn and Sponsor HCM INVESTOR HOLDINGS III, LLC as the reporting persons. According to the filing’s own declarations, there are no changes to the company’s redemption calendar, trust account valuation, or proposed business combination timeline. The document explicitly states 'No non-derivative transactions or holdings reported,' meaning neither Matthews Shawn nor HCM INVESTOR HOLDINGS III, LLC—each classified in the submission as a '10% owner'—has altered their equity positions. Consequently, the sponsor’s economic stake and the firm’s operational 'SEARCHING' designation remain unchanged relative to the stated deadline. Why it matters: The SEC submission confirms routine administrative compliance and provides a verified checkpoint on insider retention during the merger search phase. While the document contains no substantive claims regarding target customers, projected revenue, addressable market size, strategic partnerships, technological roadmap, or pending litigation, the unmodified 10% holdings attributed to both the chief executive and the sponsor help investors assess alignment and baseline governance stability ahead of any potential extension vote or acquisition announcement.

What changed: A routine SEC Form 4 insider ownership compliance report filed by Director Craig Goos for HCM III Acquisition Corp. The Form 4 filing states that Director Craig Goos executed no non-derivative transactions and reported no changes to his existing equity holdings during the covered period. Accordingly, there are no alterations to insider ownership levels, trust account mechanics, redemption calendar thresholds, extension provisions, business combination progress, or sponsor/director conduct. The submission contains no claims or disclosures regarding customer pipelines, revenue streams, addressable market sizing, corporate strategy, technology assets, partnership agreements, legal proceedings, or management personnel changes. Why it matters: For investors tracking SPAC governance and milestone readiness, this document establishes a verified baseline that Director Goos has not adjusted his financial exposure or voting alignment ahead of the stated 2027-08-04 deadline. Zero-activity Form 4 filings eliminate speculation around recent insider trading behavior while simultaneously confirming that no capital call, lock-up adjustment, or targeted entity introduction has been initiated through this directorship. The filing carries no independent weight on shareholder liquidation options, trust accrual rates, or conversion ratios, serving strictly as a periodic transparency update that leaves all operational and redemption mechanics unchanged.