Company Description
HCM II Acquisition Corp., which traded on Nasdaq under the ticker symbol HOND, was a special-purpose acquisition company (SPAC) formed to complete a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. As a blank check company, it did not operate an ongoing commercial business of its own but was structured to identify and combine with an established business of scale. Its Class A ordinary shares, units and warrants were listed on Nasdaq under the symbols HOND, HONDU and HONDW, respectively, as described in multiple company announcements and SEC filings.
Business purpose and SPAC structure
According to its public disclosures, HCM II Acquisition Corp. could pursue a business combination target in any industry or at any stage of corporate evolution. Its stated primary focus was to complete a business combination with an established business of scale that was poised for continued growth and led by a highly regarded management team. This mandate reflects the typical SPAC model, in which capital raised in an initial public offering is held in a trust account and later deployed in connection with a qualifying transaction.
The company’s initial public offering of units on Nasdaq created a vehicle through which public investors could participate in a future business combination. Each unit consisted of one Class A ordinary share and one-half of one redeemable warrant, with each whole warrant exercisable for one Class A ordinary share at a specified exercise price, as set out in the IPO-related press releases and registration statement references.
Business combination with Terrestrial Energy
HCM II Acquisition Corp. entered into a Business Combination Agreement with Terrestrial Energy Inc., a developer of small modular nuclear plants using advanced Generation IV reactor technology. SEC filings and joint press releases state that on March 26, 2025, HCM II and Terrestrial Energy agreed to a proposed business combination that would result in the combined company being listed on the Nasdaq Stock Market under the symbol IMSR. Subsequent filings describe the progression of this transaction, including the filing and effectiveness of a registration statement on Form S-4 and the scheduling of an extraordinary general meeting of HCM II shareholders to vote on the deal.
At the extraordinary general meeting held on October 20, 2025, HCM II shareholders approved the Business Combination Agreement and related matters. An 8-K filed on October 22, 2025 details the shareholder vote outcomes across multiple proposals, including approval of the business combination, a domestication from the Cayman Islands to Delaware, stock issuance proposals, new organizational documents, an equity incentive plan and director elections. Only a small number of Class A ordinary shares were redeemed in connection with this meeting, as disclosed in the same filing.
Domestication and name change
Following shareholder approval, HCM II completed a domestication from a Cayman Islands exempted company to a Delaware corporation. An 8-K dated October 29, 2025 explains that on October 23, 2025 HCM II filed a certificate of corporate domestication and a certificate of incorporation in Delaware, and filed a notice of deregistration in the Cayman Islands. In connection with the domestication and closing of the transactions, the company’s name was changed from HCM II Acquisition Corp. to Terrestrial Energy Inc.
As part of this process, each outstanding HCM II Class A ordinary share that was not redeemed converted into one share of common stock of the Delaware corporation, and each outstanding HCM II warrant converted into a warrant to acquire one share of the new common stock. Each outstanding HCM II unit was cancelled, with holders becoming entitled to one new common share and one-half of one new warrant, with no fractional warrants issued. These mechanics are summarized in the 8-K filings describing the domestication and business combination.
Completion of the merger and new trading symbols
An 8-K filed on November 3, 2025 reports that the merger between HCM II Merger Sub Inc. and Terrestrial Energy Development Inc. (formerly Terrestrial Energy Inc.) was consummated on October 28, 2025. Following the closing of the transactions contemplated by the Business Combination Agreement, Legacy Terrestrial Energy became a wholly owned subsidiary of the Delaware corporation now known as Terrestrial Energy Inc. The same filing notes that the combined company is referred to as “New Terrestrial Energy.”
The 8-K dated October 29, 2025 further states that New Terrestrial common shares and New Terrestrial warrants began trading on Nasdaq under the symbols IMSR and IMSRW, respectively, on October 29, 2025. As a result, the HOND ticker represents the historical SPAC prior to completion of the business combination and domestication, while ongoing trading occurs under the IMSR and IMSRW symbols.
Capital structure and PIPE financing
In connection with the business combination, HCM II entered into subscription agreements with certain investors for a private investment in public equity (PIPE). The November 3, 2025 8-K explains that PIPE investors collectively subscribed for 5,000,000 New Terrestrial common shares at a purchase price of $10.00 per share, for an aggregate PIPE amount of $50,000,000. These investors were permitted to satisfy their commitments with non-redeemed shares meeting specified conditions. At closing, New Terrestrial Energy received the PIPE proceeds, and the filing details the resulting share issuances and assumptions of options, warrants and restricted stock units linked to Legacy Terrestrial Energy.
The same 8-K also describes the exchange ratio used to convert Legacy Terrestrial Energy common and preferred shares into New Terrestrial common shares and outlines how options, warrants, convertible notes and restricted stock units of Legacy Terrestrial Energy were assumed or converted. These disclosures provide context on how the SPAC’s capital structure transitioned into that of the combined company.
Status of HOND as a historical SPAC ticker
After the domestication and merger, HCM II Acquisition Corp. no longer exists as a separate operating entity under that name. Its corporate successor is Terrestrial Energy Inc., a Delaware corporation whose common stock and warrants trade on Nasdaq as IMSR and IMSRW. For investors researching the symbol HOND, this represents the pre-combination SPAC that facilitated Terrestrial Energy’s listing rather than a currently active standalone issuer.
FAQs about HCM II Acquisition Corp. (HOND)
- What was HCM II Acquisition Corp. (HOND)?
HCM II Acquisition Corp. was a blank check company, also known as a SPAC, formed to effect a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. Its Class A ordinary shares traded on Nasdaq under the symbol HOND, as described in its IPO-related press releases and SEC filings. - What was the business focus of HCM II Acquisition Corp.?
Public disclosures state that HCM II could pursue a target in any business or industry or at any stage of corporate evolution, with a primary focus on completing a business combination with an established business of scale poised for continued growth and led by a highly regarded management team. - Which company did HCM II Acquisition Corp. merge with?
HCM II entered into a Business Combination Agreement with Terrestrial Energy Inc., a developer of small modular nuclear plants using advanced Generation IV reactor technology. SEC filings and joint press releases describe this transaction and its terms. - What happened to the HOND ticker after the business combination?
Following shareholder approval, domestication to Delaware, and completion of the merger, the combined company’s common stock and warrants began trading on Nasdaq under the symbols IMSR and IMSRW. The HOND ticker therefore represents the historical listing of the SPAC prior to these changes. - Did HCM II Acquisition Corp. change its name?
Yes. In connection with the domestication and business combination, the company’s name was changed from HCM II Acquisition Corp. to Terrestrial Energy Inc., as reported in the October 29, 2025 Form 8-K. - How were HCM II shares and warrants treated in the domestication?
According to the 8-K filings, each outstanding HCM II Class A ordinary share that was not redeemed converted into one share of New Terrestrial common stock, each HCM II warrant converted into a warrant to acquire one New Terrestrial common share, and each HCM II unit was cancelled, with holders receiving one New Terrestrial common share and one-half of one New Terrestrial warrant. - What role did the PIPE financing play in the transaction?
As disclosed in the November 3, 2025 8-K, HCM II entered into PIPE subscription agreements under which investors subscribed for 5,000,000 New Terrestrial common shares at $10.00 per share. The PIPE proceeds were received by New Terrestrial Energy at closing and formed part of the capital structure of the combined company. - Is HCM II Acquisition Corp. still operating as a separate company?
No. SEC filings describe that HCM II domesticated as a Delaware corporation and completed a merger in which Legacy Terrestrial Energy became its wholly owned subsidiary. The resulting entity is Terrestrial Energy Inc., whose securities trade as IMSR and IMSRW. HCM II Acquisition Corp. exists only as the historical SPAC predecessor.
Stock Performance
HCM II Acquisition (HOND) stock last traded at $18.04. Over the past 12 months, the stock has gained 80.8%. At a market capitalization of $518.6M, HOND is classified as a small-cap stock with approximately 28.8M shares outstanding.
Latest News
HCM II Acquisition has 10 recent news articles. Of the recent coverage, 3 articles coincided with positive price movement and 5 with negative movement. Key topics include acquisition, IPO, offering. View all HOND news →
SEC Filings
HCM II Acquisition has filed 5 recent SEC filings, including 3 Form 3, 1 Form 4, 1 Form 8-K/A. The most recent filing was submitted on November 14, 2025. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all HOND SEC filings →
Financial Highlights
Upcoming Events
Reactor criticality
HCM II Acquisition has 1 upcoming scheduled event. The next event, "Reactor criticality", is scheduled for July 4, 2026 (in 94 days). Investors can track these dates to stay informed about potential catalysts that may affect the HOND stock price.
Short Interest History
Short interest in HCM II Acquisition (HOND) currently stands at 1.2 million shares, up 667.3% from the previous reporting period, representing 5.3% of the float. Over the past 12 months, short interest has increased by 7380.6%.
Days to Cover History
Days to cover for HCM II Acquisition (HOND) currently stands at 1.0 days. This low days-to-cover ratio indicates high liquidity, allowing short sellers to quickly exit positions if needed.
HOND Company Profile & Sector Positioning
HCM II Acquisition (HOND) operates in the Shell Companies industry within the broader Fabricated Plate Work (boiler Shops) sector and is listed on the NASDAQ.
Investors comparing HOND often look at related companies in the same sector, including HCM II ACQUISITION CORP (HONDU), Bold Eagle Acquisition (BEAG), Andretti Acquisition Corp II-A (POLE), Empowerment & Inclusion Capita (EPWR), and Fifth Era Acquisition Corp I (FERA). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate HOND's relative position within its industry.