organization · Reporting owner
HCM Investor Holdings II, LLC
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Terrestrial Energy Inc. /DE/IMSR · Entity 5288 | Former 10% Holder | November 06, 2025 | November 13, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Terrestrial Energy Inc. /DE/
Report date November 06, 2025 · Filed November 13, 2025
Jointly reported with Matthews Shawn
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common Stock, par value $0.0001 per shareSEC Table I · non-derivative | IndirectSee Footnote | 2,755,000 |
Reported balance
After 2025-11-06 transaction · row 1
Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source rowRow 1 · 2025-11-06 · Other · Disposed 2,920,000 · Balance 2,755,000 F1: On November 6, 2025, HCM Investor Holdings II, LLC (the "Sponsor") distributed an aggregate of 5,675,000 shares of common stock, par value $0.0001 per share of the Issuer ("Common Stock") and 4,275,000 Warrants, convertible to 4,275,000 shares of Common Stock, to its members as a distribution for no consideration in accordance with the terms of the Sponsor's limited liability company agreement. 2,755,000 shares of Common Stock and 775,000 Warrants were distributed to Shawn Matthews on such basis. Under Rule 16a-13 promulgated under the Securities Exchange Act of 1934, as a change in form of beneficial ownership, the reported distribution by the Sponsor (as it relates to Mr. Matthews' deemed beneficial ownership of the securities held by the Sponsor) to its members from the Sponsor, were exempt from Section 16 of the Securities Exchange Act of 1934. F2: Shawn Matthews is the record holder of such securities. Shawn Matthews is the sole Managing Member of HCM Investor Holdings II, LLC and shares voting and investment discretion with respect to the securities held by HCM Investor Holdings II, LLC. |
| WarrantsSEC Table II · derivative / convertible security · Conversion / exercise price $11.50 · Expires 2030-10-28 | IndirectSee Footnote | 775,000 |
Reported balance
After 2025-11-06 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2025-11-06 · Other · Disposed 3,500,000 · Balance 775,000 F1: On November 6, 2025, HCM Investor Holdings II, LLC (the "Sponsor") distributed an aggregate of 5,675,000 shares of common stock, par value $0.0001 per share of the Issuer ("Common Stock") and 4,275,000 Warrants, convertible to 4,275,000 shares of Common Stock, to its members as a distribution for no consideration in accordance with the terms of the Sponsor's limited liability company agreement. 2,755,000 shares of Common Stock and 775,000 Warrants were distributed to Shawn Matthews on such basis. Under Rule 16a-13 promulgated under the Securities Exchange Act of 1934, as a change in form of beneficial ownership, the reported distribution by the Sponsor (as it relates to Mr. Matthews' deemed beneficial ownership of the securities held by the Sponsor) to its members from the Sponsor, were exempt from Section 16 of the Securities Exchange Act of 1934. F2: Shawn Matthews is the record holder of such securities. Shawn Matthews is the sole Managing Member of HCM Investor Holdings II, LLC and shares voting and investment discretion with respect to the securities held by HCM Investor Holdings II, LLC. |
| WarrantsSEC Table II · derivative / convertible security · Conversion / exercise price $11.50 · Expires 2030-10-28 | IndirectSee Footnote | 1,267,599 |
Reported balance
Holding disclosure · report date 2025-11-06 · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · Balance 1,267,599 F3: Mr. Matthews is the sole managing member of Hondo Holdings LLC, which is registered owner of these warrants, and Mr. Matthews holds voting and investment power with respect to warrants held of record by Hondo Holdings LLC. |
| Common Stock, par value $0.0001 per shareSEC Table I · non-derivative | Direct | 533,514 |
Reported balance
Holding disclosure · report date 2025-11-06 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 533,514 |
Filing footnotes · ownership attribution and instrument terms
F1: On November 6, 2025, HCM Investor Holdings II, LLC (the "Sponsor") distributed an aggregate of 5,675,000 shares of common stock, par value $0.0001 per share of the Issuer ("Common Stock") and 4,275,000 Warrants, convertible to 4,275,000 shares of Common Stock, to its members as a distribution for no consideration in accordance with the terms of the Sponsor's limited liability company agreement. 2,755,000 shares of Common Stock and 775,000 Warrants were distributed to Shawn Matthews on such basis. Under Rule 16a-13 promulgated under the Securities Exchange Act of 1934, as a change in form of beneficial ownership, the reported distribution by the Sponsor (as it relates to Mr. Matthews' deemed beneficial ownership of the securities held by the Sponsor) to its members from the Sponsor, were exempt from Section 16 of the Securities Exchange Act of 1934.
F2: Shawn Matthews is the record holder of such securities. Shawn Matthews is the sole Managing Member of HCM Investor Holdings II, LLC and shares voting and investment discretion with respect to the securities held by HCM Investor Holdings II, LLC.
F3: Mr. Matthews is the sole managing member of Hondo Holdings LLC, which is registered owner of these warrants, and Mr. Matthews holds voting and investment power with respect to warrants held of record by Hondo Holdings LLC.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| November 06, 2025 Filed Nov 13, 2025 19:31 UTC | Terrestrial Energy Inc. /DE/ IMSR · Entity 5288 | OtherWarrants · Derivative | 3,500,000 | Not disclosed Strike: $11.50 | Not disclosed |
DisclosureSEC source: 0001213900-25-110214 · ownership.xml · derivative · entry 3 Matthews Shawn · CIK 0001855118 · Director HCM Investor Holdings II, LLC · CIK 0002019800 · Former 10% Holder Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 775,000 Underlying: Common Stock, par value $0.0001 per share · 3,500,000 shares Expires 2030-10-28 F1 · price: On November 6, 2025, HCM Investor Holdings II, LLC (the "Sponsor") distributed an aggregate of 5,675,000 shares of common stock, par value $0.0001 per share of the Issuer ("Common Stock") and 4,275,000 Warrants, convertible to 4,275,000 shares of Common Stock, to its members as a distribution for no consideration in accordance with the terms of the Sponsor's limited liability company agreement. 2,755,000 shares of Common Stock and 775,000 Warrants were distributed to Shawn Matthews on such basis. Under Rule 16a-13 promulgated under the Securities Exchange Act of 1934, as a change in form of beneficial ownership, the reported distribution by the Sponsor (as it relates to Mr. Matthews' deemed beneficial ownership of the securities held by the Sponsor) to its members from the Sponsor, were exempt from Section 16 of the Securities Exchange Act of 1934. F2 · ownership.nature: Shawn Matthews is the record holder of such securities. Shawn Matthews is the sole Managing Member of HCM Investor Holdings II, LLC and shares voting and investment discretion with respect to the securities held by HCM Investor Holdings II, LLC. Read SEC document |
| November 06, 2025 Filed Nov 13, 2025 19:31 UTC | Terrestrial Energy Inc. /DE/ IMSR · Entity 5288 | OtherCommon Stock, par value $0.0001 per share | 2,920,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001213900-25-110214 · ownership.xml · nonDerivative · entry 1 Matthews Shawn · CIK 0001855118 · Director HCM Investor Holdings II, LLC · CIK 0002019800 · Former 10% Holder Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 2,755,000 F1 · price: On November 6, 2025, HCM Investor Holdings II, LLC (the "Sponsor") distributed an aggregate of 5,675,000 shares of common stock, par value $0.0001 per share of the Issuer ("Common Stock") and 4,275,000 Warrants, convertible to 4,275,000 shares of Common Stock, to its members as a distribution for no consideration in accordance with the terms of the Sponsor's limited liability company agreement. 2,755,000 shares of Common Stock and 775,000 Warrants were distributed to Shawn Matthews on such basis. Under Rule 16a-13 promulgated under the Securities Exchange Act of 1934, as a change in form of beneficial ownership, the reported distribution by the Sponsor (as it relates to Mr. Matthews' deemed beneficial ownership of the securities held by the Sponsor) to its members from the Sponsor, were exempt from Section 16 of the Securities Exchange Act of 1934. F2 · ownership.nature: Shawn Matthews is the record holder of such securities. Shawn Matthews is the sole Managing Member of HCM Investor Holdings II, LLC and shares voting and investment discretion with respect to the securities held by HCM Investor Holdings II, LLC. Read SEC document |
| October 28, 2025 Filed Oct 30, 2025 20:31 UTC | Terrestrial Energy Inc. /DE/ IMSR · Entity 5288 | OtherWarrants · Derivative | 1,267,599 | $11.50 Strike: $11.50 | $14,577,388.50 |
DisclosureSEC source: 0001213900-25-104331 · ownership.xml · derivative · entry 4 Matthews Shawn · CIK 0001855118 · Director HCM Investor Holdings II, LLC · CIK 0002019800 · Former 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 1,267,599 Underlying: Common Stock, par value $0.0001 per share · 1,267,599 shares Expires 2030-10-28 F4 · ownership.nature: Mr. Matthews is the sole managing member of Hondo Holdings LLC, which is registered owner of these warrants, and Mr. Matthews holds voting and investment power with respect to warrants held of record by Hondo Holdings LLC. Read SEC document |
| October 28, 2025 Filed Oct 30, 2025 20:31 UTC | Terrestrial Energy Inc. /DE/ IMSR · Entity 5288 | OtherWarrants · Derivative | 4,275,000 | $11.50 Strike: $11.50 | $49,162,500.00 |
DisclosureSEC source: 0001213900-25-104331 · ownership.xml · derivative · entry 3 Matthews Shawn · CIK 0001855118 · Director HCM Investor Holdings II, LLC · CIK 0002019800 · Former 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 4,275,000 Underlying: Common Stock, par value $0.0001 per share · 4,275,000 shares Expires 2030-10-28 F2 · ownership.nature: Mr. Matthews is the sole managing member of HCM Investor Holdings II, LLC (the "Sponsor"), which is registered owner of these shares and warrants, and Mr. Matthews holds voting and investment power with respect to shares and warrants held of record by the Sponsor. Read SEC document |
| October 28, 2025 Filed Oct 30, 2025 20:31 UTC | Terrestrial Energy Inc. /DE/ IMSR · Entity 5288 | OtherCommon Stock, par value $0.0001 per share | 533,514 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001213900-25-104331 · ownership.xml · nonDerivative · entry 2 Matthews Shawn · CIK 0001855118 · Director HCM Investor Holdings II, LLC · CIK 0002019800 · Former 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 533,514 F3 · price: Upon closing of the Business Combination, between Terrestrial Energy Inc., a Delaware corporation formerly known as HCM II Acquisition Corp. ("New Terrestrial"), and Terrestrial Energy Development Inc., a Delaware corporation formerly known as Terrestrial Energy Inc. ("Legacy Terrestrial"), the reporting person acquired these securities in exchange for the reporting person's securities in Legacy Terrestrial pursuant to the terms and conditions of the BCA. Read SEC document |
| October 28, 2025 Filed Oct 30, 2025 20:31 UTC | Terrestrial Energy Inc. /DE/ IMSR · Entity 5288 | OtherCommon Stock, par value $0.0001 per share | 5,675,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001213900-25-104331 · ownership.xml · nonDerivative · entry 1 Matthews Shawn · CIK 0001855118 · Director HCM Investor Holdings II, LLC · CIK 0002019800 · Former 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 5,675,000 F1 · price: Upon closing of the business combination (the "Business Combination") between the Issuer (which was formerly known as HCM II Acquisition Corp. or "HCM II") and Terrestrial Energy Inc. ("Terrestrial") the reporting person acquired these securities in exchange for the reporting person's securities in Terrestrial pursuant to the terms and conditions of the business combination agreement, dated March 26, 2025 and as amended on October 28, 2025, by and among HCM II, Terrestrial and HCM II Merger Sub Inc. (the "BCA"). The reporting person resigned as an officer of HCM II upon the closing of the Business Combination. F2 · ownership.nature: Mr. Matthews is the sole managing member of HCM Investor Holdings II, LLC (the "Sponsor"), which is registered owner of these shares and warrants, and Mr. Matthews holds voting and investment power with respect to shares and warrants held of record by the Sponsor. Read SEC document |
| August 19, 2024 Filed Aug 20, 2024 20:47 UTC | Terrestrial Energy Inc. /DE/ HCMA · Entity 5288 | OtherClass B Ordinary Shares · Derivative | 75,000 | $0.00 | $300.00 |
DisclosureSEC source: 0001140361-24-037984 · form4.xml · derivative · entry 1 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO · 10% owner HCM Investor Holdings II, LLC · CIK 0002019800 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 5,675,000 Underlying: Class A Ordinary Shares · 75,000 shares Expires not disclosed F1 · derivative.exercise_price: 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. F2 · kind: In connection with the Issuer's initial public offering and the appointment of Messrs. Andrew Brenner, Michael Connor, and Jacob Loveless to the Issuer's Board of Directors, HCM Investor Holdings II, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Messrs. Andrew Brenner, Michael Connor, and Jacob Loveless. F1 · derivative.exercise_date: 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. F1 · derivative.expiration_date: 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. F3 · ownership.nature: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of April 4, 2024 by and among the Sponsor and the registrant and a share capitalization authorized by the SPAC on April 4, 2024. Shawn Matthews, the Chairman and Chief Executive Officer of the registrant, is the managing member of the Sponsor. Mr. Matthews has sole voting and dispositive control over the shares held by the Sponsor and may be deemed the beneficial owner of such shares. Mr. Matthews disclaims beneficial ownership over any securities owned by the Sponsor in which he does not have any pecuniary interest. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.