person · Reporting owner

Matthews Shawn

Disclosed activity across 8 companies

Tapewire entity: 30101
SEC CIK: 0001855118

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
HCM III ACQUISITION CORP.HCMA · Entity 5792	Director · Chairman and CEO · 10% owner	July 31, 2025	August 06, 2025
HCM IV Acquisition Corp.HACQ · Entity 5711	Director · Chairman and CEO	February 11, 2026	February 18, 2026
Host Digital Inc.HOST · Entity 8152	Director	September 17, 2026	September 28, 2026
Mercator Acquisition Corp.MRCO · Entity 6211	Director · Chairman and CEO	July 08, 2026	July 16, 2026
Streamex Corp.STEX · Entity 1816	Director	July 01, 2026	July 10, 2026
Terrestrial Energy Inc. /DE/IMSR · Entity 5288	Director	December 18, 2025	December 22, 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.

HCM III ACQUISITION CORP.

Report date July 31, 2025 · Filed August 06, 2025

Jointly reported with HCM INVESTOR HOLDINGS III, LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class B Ordinary SharesSEC Table II · derivative / convertible security	IndirectSee Footnote	8,358,333	Reported balance After 2025-07-31 transaction · row 1 Instrument identity requires review; Table II rows are not merged. 1 source row Row 1 · 2025-07-31 · Other · Disposed 75,000 · Balance 8,358,333 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. F2: In connection with the Issuer's initial public offering and the appointment of Craig Goos, Richard Donohoe and Jacob Loveless to the Issuer's Board of Directors, HCM III Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Craig Goos, Richard Donohoe, and Jacob Loveless. F3: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of April 16, 2025 by and among the Sponsor and the registrant and a share recapitalization authorized by the SPAC on May 29, 2025 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.

Filing footnotes · ownership attribution and instrument terms

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.

F2: In connection with the Issuer's initial public offering and the appointment of Craig Goos, Richard Donohoe and Jacob Loveless to the Issuer's Board of Directors, HCM III Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Craig Goos, Richard Donohoe, and Jacob Loveless.

F3: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of April 16, 2025 by and among the Sponsor and the registrant and a share recapitalization authorized by the SPAC on May 29, 2025 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.

HCM IV Acquisition Corp.

Report date February 11, 2026 · Filed February 18, 2026

Jointly reported with HCM Investor Holdings IV, LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class B Ordinary SharesSEC Table II · derivative / convertible security	IndirectSee Footnote	8,550,000	Reported balance After 2026-02-11 transaction · row 1 Instrument identity requires review; Table II rows are not merged. 1 source row Row 1 · 2026-02-11 · Other · Disposed 75,000 · Balance 8,550,000 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. F2: In connection with the Issuer's initial public offering and the appointment of Michael J. Connor, Richard Donohoe and Thomas Sapio to the Issuer's Board of Directors, HCM IV Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Michael J. Connor, Richard Donohoe and Thomas Sapio. F3: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of September 5, 2025 by and among the Sponsor and the registrant. 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.

Filing footnotes · ownership attribution and instrument terms

F2: In connection with the Issuer's initial public offering and the appointment of Michael J. Connor, Richard Donohoe and Thomas Sapio to the Issuer's Board of Directors, HCM IV Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Michael J. Connor, Richard Donohoe and Thomas Sapio.

F3: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of September 5, 2025 by and among the Sponsor and the registrant. 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.

Host Digital Inc.

Report date September 17, 2026 · Filed September 28, 2026

This filing explicitly reported no securities owned.

Mercator Acquisition Corp.

Report date July 08, 2026 · Filed July 16, 2026

Jointly reported with Mercator Investor Holdings, LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class B Ordinary SharesSEC Table II · derivative / convertible security	IndirectSee Footnote	5,475,000	Reported balance After 2026-07-08 transaction · row 1 Instrument identity requires review; Table II rows are not merged. 1 source row Row 1 · 2026-07-08 · Other · Disposed 275,000 · Balance 5,475,000 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. F2: In connection with the Issuer's initial public offering and the appointment of Matthew Sweeney, James Nash, and Stephen Schwartz to the Issuer's Board of Directors, Mercator Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Matthew Sweeney, James Nash, and Stephen Schwartz. The Sponsor also transferred 200,000 Class B ordinary shares to Clear Street LLC in connection with the Issuer's initial public offering, for the amount of $0.003 per share. F3: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of December 16, 2025 by and among the Sponsor and the registrant. 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.

Filing footnotes · ownership attribution and instrument terms

F2: In connection with the Issuer's initial public offering and the appointment of Matthew Sweeney, James Nash, and Stephen Schwartz to the Issuer's Board of Directors, Mercator Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Matthew Sweeney, James Nash, and Stephen Schwartz. The Sponsor also transferred 200,000 Class B ordinary shares to Clear Street LLC in connection with the Issuer's initial public offering, for the amount of $0.003 per share.

F3: These Class B ordinary shares are held directly by the Sponsor, acquired pursuant to a subscription agreement dated as of December 16, 2025 by and among the Sponsor and the registrant. 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.

Streamex Corp.

Report date July 01, 2026 · Filed July 10, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	200,000	Reported balance After 2026-07-01 transaction · row 1 1 source row Row 1 · 2026-07-01 · Grant · Acquired 100,000 · Balance 200,000 F1: The restricted stock award was granted under the Issuer's 2023 Equity Incentive Plan as of July 1, 2026, based on a closing price of $1.07 per share on such date.

Filing footnotes · ownership attribution and instrument terms

F1: The restricted stock award was granted under the Issuer's 2023 Equity Incentive Plan as of July 1, 2026, based on a closing price of $1.07 per share on such date.

Terrestrial Energy Inc. /DE/

Report date December 18, 2025 · Filed December 22, 2025

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	4,190	Reported balance After 2025-12-18 transaction · row 1 Instrument identity requires review; Table II rows are not merged. 1 source row Row 1 · 2025-12-18 · Grant · Acquired 4,190 · Balance 4,190 F1: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026.
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	4,925	Reported balance After 2025-12-18 transaction · row 2 Instrument identity requires review; Table II rows are not merged. 1 source row Row 2 · 2025-12-18 · Grant · Acquired 735 · Balance 4,925 F1: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026.

Past disclosures · reporting ended (2)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Axe Compute Inc.

Report date March 06, 2026 · Filed April 23, 2026

Section 16 reporting ended · disclosed 2026-04-23. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	1,166	Reported balance After 2026-03-06 transaction · row 1 1 source row Row 1 · 2026-03-06 · Grant · Acquired 1,166 · Balance 1,166 F1: Consists of 1,166 shares that were issued to the Reporting Person on March 6, 2026, in each case as compensation for such Reporting Person's service on the Issuer's board of directors.

Filing footnotes · ownership attribution and instrument terms

F1: Consists of 1,166 shares that were issued to the Reporting Person on March 6, 2026, in each case as compensation for such Reporting Person's service on the Issuer's board of directors.

HCM Acquisition Corp

Report date March 20, 2024 · Filed March 22, 2024

Jointly reported with HCM Investor Holdings, LLC

Section 16 reporting ended · disclosed 2024-03-22. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class A Ordinary SharesSEC Table I · non-derivative	IndirectSee Footnote	8,737,500	Reported balance After 2024-03-20 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2024-03-20 · Other · Disposed 1,250,000 · Balance 8,737,500 F1: HCM Investor Holdings, LLC (the "Sponsor") delivered 1,250,000 class A ordinary shares to certain vendors of Murano Global Investments PLC ("Murano") immediately prior to the closing of the business combination pursuant to that certain Amended & Restated Business Combination, dated August 2, 2023, as amended on December 31, 2023 (the "Business Combination Agreement") in exchange for the satisfaction and cancellation of $12,500,000.00 in aggregate principal amount of amounts due from Murano pursuant to the Sponsor Support Agreement, dated August 2, 2023, by and among the Sponsor, holders of the Issuer's Class B ordinary shares, and Murano PV, S.A. de C.V, as amended on December 31, 2023 (the "Sponsor Support Agreement").
Class A Ordinary SharesSEC Table I · non-derivative	IndirectSee Footnote	0	Reported balance After 2024-03-20 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2024-03-20 · Other · Disposed 8,737,500 · Balance 0 F2: The reporting person disposed of all Issuer equity securities effective as of the consummation of the business combination and ceased to be a reporting person with respect to the Issuer. F3: Pursuant to the Business Combination Agreement, each issued and outstanding share of the Issuer's ordinary shares automatically converted into the right to receive Murano ordinary shares on a one-to-one basis upon the consummation of such business combination.
Private Placement WarrantsSEC Table II · derivative / convertible security	IndirectSee Footnote	0	Reported balance After 2024-03-20 transaction · row 3 Instrument identity requires review; Table II rows are not merged. 1 source row Row 3 · 2024-03-20 · Disposition to issuer · Disposed 10,500,000 · Balance 0 F4: Each Private Placement Warrant is exercisable for one Class A ordinary share at a price of $11.50 per share. If the Issuer had not completed its business combination, the Private Placement Warrants would have expired worthless. F5: The Sponsor forfeited its Private Placement Warrants in connection with the closing of the business combination pursuant to the Sponsor Support Agreement.

Filing footnotes · ownership attribution and instrument terms

F1: HCM Investor Holdings, LLC (the "Sponsor") delivered 1,250,000 class A ordinary shares to certain vendors of Murano Global Investments PLC ("Murano") immediately prior to the closing of the business combination pursuant to that certain Amended & Restated Business Combination, dated August 2, 2023, as amended on December 31, 2023 (the "Business Combination Agreement") in exchange for the satisfaction and cancellation of $12,500,000.00 in aggregate principal amount of amounts due from Murano pursuant to the Sponsor Support Agreement, dated August 2, 2023, by and among the Sponsor, holders of the Issuer's Class B ordinary shares, and Murano PV, S.A. de C.V, as amended on December 31, 2023 (the "Sponsor Support Agreement").

F2: The reporting person disposed of all Issuer equity securities effective as of the consummation of the business combination and ceased to be a reporting person with respect to the Issuer.

F3: Pursuant to the Business Combination Agreement, each issued and outstanding share of the Issuer's ordinary shares automatically converted into the right to receive Murano ordinary shares on a one-to-one basis upon the consummation of such business combination.

F4: Each Private Placement Warrant is exercisable for one Class A ordinary share at a price of $11.50 per share. If the Issuer had not completed its business combination, the Private Placement Warrants would have expired worthless.

F5: The Sponsor forfeited its Private Placement Warrants in connection with the closing of the business combination pursuant to the Sponsor Support Agreement.

Transaction history

JSON API

Purchases/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
July 08, 2026 Filed Jul 16, 2026 22:40 UTC	Mercator Acquisition Corp. MRCO · Entity 6211	OtherClass B Ordinary Shares · Derivative	275,000	$0.00	$825.00	Disclosure SEC source: 0001213900-26-078835 · ownership.xml · derivative · entry 1 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO Mercator Investor Holdings, LLC · CIK 0002110044 · Sponsor 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: 5,475,000 Underlying: Class A Ordinary Shares · 275,000 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 Matthew Sweeney, James Nash, and Stephen Schwartz to the Issuer's Board of Directors, Mercator Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Matthew Sweeney, James Nash, and Stephen Schwartz. The Sponsor also transferred 200,000 Class B ordinary shares to Clear Street LLC in connection with the Issuer's initial public offering, for the amount of $0.003 per share. 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 December 16, 2025 by and among the Sponsor and the registrant. 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
July 01, 2026 Filed Jul 10, 2026 21:00 UTC	Streamex Corp. STEX · Entity 1816	GrantCommon Stock	100,000	$0.00	$0.00	Disclosure SEC source: 0001493152-26-032868 · ownership.xml · nonDerivative · entry 1 Matthews Shawn · CIK 0001855118 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 200,000 F1 · price: The restricted stock award was granted under the Issuer's 2023 Equity Incentive Plan as of July 1, 2026, based on a closing price of $1.07 per share on such date. Read SEC document
March 06, 2026 Filed Apr 23, 2026 10:06 UTC	Axe Compute Inc. AGPU · Entity 6706	GrantCommon Stock	1,166	$0.00	$0.00	Disclosure SEC source: 0001171843-26-002662 · ownership.xml · nonDerivative · entry 1 Matthews Shawn · CIK 0001855118 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,166 F1 · shares: Consists of 1,166 shares that were issued to the Reporting Person on March 6, 2026, in each case as compensation for such Reporting Person's service on the Issuer's board of directors. Read SEC document
February 11, 2026 Filed Feb 18, 2026 16:50 UTC	HCM IV Acquisition Corp. HACQ · Entity 5711	OtherClass B Ordinary Shares · Derivative	75,000	$0.00	$225.00	Disclosure SEC source: 0001213900-26-017770 · ownership.xml · derivative · entry 1 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO HCM Investor Holdings IV, LLC · CIK 0002093630 · 10% owner · Sponsor 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: 8,550,000 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 Michael J. Connor, Richard Donohoe and Thomas Sapio to the Issuer's Board of Directors, HCM IV Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Michael J. Connor, Richard Donohoe and Thomas Sapio. 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 September 5, 2025 by and among the Sponsor and the registrant. 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
December 18, 2025 Filed Dec 22, 2025 21:30 UTC	Terrestrial Energy Inc. /DE/ IMSR · Entity 5288	GrantRestricted Stock Units · Derivative	735	$0.00	$0.00	Disclosure SEC source: 0001213900-25-124579 · ownership.xml · derivative · entry 2 Matthews Shawn · CIK 0001855118 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,925 Underlying: Common Stock · 735 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026. F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026. F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026. Read SEC document
December 18, 2025 Filed Dec 22, 2025 21:30 UTC	Terrestrial Energy Inc. /DE/ IMSR · Entity 5288	GrantRestricted Stock Units · Derivative	4,190	$0.00	$0.00	Disclosure SEC source: 0001213900-25-124579 · ownership.xml · derivative · entry 1 Matthews Shawn · CIK 0001855118 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,190 Underlying: Common Stock · 4,190 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026. F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026. F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026. Read SEC document
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	Disclosure SEC 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	Disclosure SEC 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	Disclosure SEC 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	Disclosure SEC 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	Disclosure SEC 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	Disclosure SEC 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
July 31, 2025 Filed Aug 6, 2025 01:07 UTC	HCM III ACQUISITION CORP. HCMA · Entity 5792	OtherClass B Ordinary Shares · Derivative	75,000	$0.00	$300.00	Disclosure SEC source: 0001213900-25-072262 · ownership.xml · derivative · entry 1 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO · 10% owner HCM INVESTOR HOLDINGS III, LLC · CIK 0002069862 · 10% owner · Sponsor 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: 8,358,333 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 Craig Goos, Richard Donohoe and Jacob Loveless to the Issuer's Board of Directors, HCM III Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Craig Goos, Richard Donohoe, 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 16, 2025 by and among the Sponsor and the registrant and a share recapitalization authorized by the SPAC on May 29, 2025 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
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	Disclosure SEC 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
March 20, 2024 Filed Mar 22, 2024 18:11 UTC	HCM Acquisition Corp HCMA · Entity 92746	Disposition to issuerPrivate Placement Warrants · Derivative	10,500,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001140361-24-014871 · form4.xml · derivative · entry 3 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO · 10% owner HCM Investor Holdings, LLC · CIK 0001864019 · 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: 0 Underlying: Class A Ordinary Shares · 10,500,000 shares Expires not disclosed F4 · derivative.exercise_price: Each Private Placement Warrant is exercisable for one Class A ordinary share at a price of $11.50 per share. If the Issuer had not completed its business combination, the Private Placement Warrants would have expired worthless. F5 · price: The Sponsor forfeited its Private Placement Warrants in connection with the closing of the business combination pursuant to the Sponsor Support Agreement. F4 · derivative.exercise_date: Each Private Placement Warrant is exercisable for one Class A ordinary share at a price of $11.50 per share. If the Issuer had not completed its business combination, the Private Placement Warrants would have expired worthless. F4 · derivative.expiration_date: Each Private Placement Warrant is exercisable for one Class A ordinary share at a price of $11.50 per share. If the Issuer had not completed its business combination, the Private Placement Warrants would have expired worthless. F5 · ownership.nature: The Sponsor forfeited its Private Placement Warrants in connection with the closing of the business combination pursuant to the Sponsor Support Agreement. Read SEC document
March 20, 2024 Filed Mar 22, 2024 18:11 UTC	HCM Acquisition Corp HCMA · Entity 92746	OtherClass A Ordinary Shares	8,737,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001140361-24-014871 · form4.xml · nonDerivative · entry 2 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO · 10% owner HCM Investor Holdings, LLC · CIK 0001864019 · 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: 0 F2 · price: The reporting person disposed of all Issuer equity securities effective as of the consummation of the business combination and ceased to be a reporting person with respect to the Issuer. F3 · price: Pursuant to the Business Combination Agreement, each issued and outstanding share of the Issuer's ordinary shares automatically converted into the right to receive Murano ordinary shares on a one-to-one basis upon the consummation of such business combination. F2 · ownership.nature: The reporting person disposed of all Issuer equity securities effective as of the consummation of the business combination and ceased to be a reporting person with respect to the Issuer. F3 · ownership.nature: Pursuant to the Business Combination Agreement, each issued and outstanding share of the Issuer's ordinary shares automatically converted into the right to receive Murano ordinary shares on a one-to-one basis upon the consummation of such business combination. Read SEC document
March 20, 2024 Filed Mar 22, 2024 18:11 UTC	HCM Acquisition Corp HCMA · Entity 92746	OtherClass A Ordinary Shares	1,250,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001140361-24-014871 · form4.xml · nonDerivative · entry 1 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO · 10% owner HCM Investor Holdings, LLC · CIK 0001864019 · 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: 8,737,500 F1 · price: HCM Investor Holdings, LLC (the "Sponsor") delivered 1,250,000 class A ordinary shares to certain vendors of Murano Global Investments PLC ("Murano") immediately prior to the closing of the business combination pursuant to that certain Amended & Restated Business Combination, dated August 2, 2023, as amended on December 31, 2023 (the "Business Combination Agreement") in exchange for the satisfaction and cancellation of $12,500,000.00 in aggregate principal amount of amounts due from Murano pursuant to the Sponsor Support Agreement, dated August 2, 2023, by and among the Sponsor, holders of the Issuer's Class B ordinary shares, and Murano PV, S.A. de C.V, as amended on December 31, 2023 (the "Sponsor Support Agreement"). F1 · ownership.nature: HCM Investor Holdings, LLC (the "Sponsor") delivered 1,250,000 class A ordinary shares to certain vendors of Murano Global Investments PLC ("Murano") immediately prior to the closing of the business combination pursuant to that certain Amended & Restated Business Combination, dated August 2, 2023, as amended on December 31, 2023 (the "Business Combination Agreement") in exchange for the satisfaction and cancellation of $12,500,000.00 in aggregate principal amount of amounts due from Murano pursuant to the Sponsor Support Agreement, dated August 2, 2023, by and among the Sponsor, holders of the Issuer's Class B ordinary shares, and Murano PV, S.A. de C.V, as amended on December 31, 2023 (the "Sponsor Support Agreement"). Read SEC document
January 25, 2022 Filed Jan 27, 2022 16:55 UTC	HCM Acquisition Corp HCMA · Entity 92746	OtherClass B Ordinary Shares · Derivative	75,000	$0.00	$150.00	Disclosure SEC source: 0001140361-22-002913 · form4.xml · derivative · entry 1 Matthews Shawn · CIK 0001855118 · Director · Chairman and CEO · 10% owner HCM Investor Holdings, LLC · CIK 0001864019 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See Footnote Disclosed balance after: 9,987,500 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 Steven Bischoff, David Goldfarb, and Jacob Loveless to the Issuer's Board of Directors, HCM Investor Holdings, LLC (the "Sponsor") assigned 25,000 Class B ordinary shares to each of Steven Bischoff, David Goldfarb, 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 February 10, 2021 by and among the Sponsor and the registrant and a share capitalization authorized by the SPAC on January 5, 2022. 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.