secwatch / observer
8-K filed January 12, 2026, 6:59 PM ET ticker DFTX CIK 0001813814
other material confidence high sentiment positive materiality 0.75

MindMed rebrands to Definium Therapeutics; $412M cash; three Phase 3 readouts in 2026

Definium Therapeutics, Inc.

item 2.02item 5.03item 8.01item 9.01

Machine-readable event card

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secwatch.filing_event.v1
accession
0001193125-26-009854
form_type
8-K
ticker
DFTX
cik
0001813814
company_name
Definium Therapeutics, Inc.
filed_at
2026-01-12T23:59:59+00:00
discovered_at
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generated_at
2026-05-16T10:55:56.193085+00:00
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event_type
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positive
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calibrated_materiality_score
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edgar_index_url
https://www.sec.gov/Archives/edgar/data/1813814/000119312526009854/0001193125-26-009854-index.htm
edgar_primary_document_url
https://www.sec.gov/Archives/edgar/data/1813814/000119312526009854/mnmd-20260109.htm
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JSON Markdown Plain text

Source-grounded claims

d7aa87edbf0c4cd640de4f8a02eb64b19f47e385

Definium Therapeutics, Inc.: Changed company name from Mind Medicine (MindMed) Inc. to Definium Therapeutics, Inc. via alteration of Notice of Articles (effective 2026-01-09).

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

SEC 8-K Item 5.03/5.05/5.06 confidence 0.9 SEC evidence

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DISCIPLINED GROWTH ACQUISITION Corp June 1, 2026, 4:15 PM ET other_material Items 1.01, 3.02, 5.02, 5.03, 8.01, 9.01

same fact type: governance_change same SEC item: 5.03, 8.01, 9.01 same event type: other_material similar materiality

This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

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This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

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This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

On May 28, 2026, the Company filed with the Secretary of State of the State of Michigan (the “Michigan Secretary of State”) a Certificate of Amendment to its Articles of Incorporation (the “Certificate of Amendment”) to effect the Reverse Stock Split.

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This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

ITEM 5.03 AMENDMENTS TO ARTICLES OF INCORPORATION OR BYLAWS; CHANGE IN FISCAL YEAR. The Registrant hereby rescinds and withdraws all disclosures contained in Item 5.03 of the Prior Form 8-K.

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same fact type: governance_change same SEC item: 5.03, 8.01, 9.01 same event type: other_material similar materiality

This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

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This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

On May 20, 2026, Rocket One Inc. (formerly, Hoth Therapeutics, Inc.) (the “Company”) filed a Certificate of Amendment to its Articles of Incorporation, as amended (the “Charter Amendment”), with the Secretary of State of the State of Nevada to change the name of the Company from “Hoth Therapeutics, Inc.” to “Rocket One Inc.” effective as of May 26, 2026 (the “Name Change”).

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This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

On May 19, 2026, the Company’s Amended and Restated Certificate of Incorporation (the “ Charter ”), in the form previously filed as Exhibit 3.2 to the Registration Statement, and the Company’s Amended and Restated Bylaws (the “ Bylaws ”), in the form previously filed as Exhibit 3.4 to the Registration Statement, became effective.

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This filing

On January 9, 2026, the Company filed a Notice of Alteration with the Province of British Columbia Registrar of Companies to alter its Notice of Articles to change the Company’s corporate name from “Mind Medicine (MindMed) Inc.” to “Definium Therapeutics, Inc.”

Comparable filing

On May 22, 2026, in connection with the IPO, the Company filed its amended and restated memorandum and articles of association (the “Amended and Restated Memorandum and Articles of Association”) with the Cayman Islands Registrar of Companies, which was effective on May 20, 2026.

Filing page SEC filing

Source: SEC EDGAR
accession 0001193125-26-009854
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