--- schema_version: "secwatch.filing_event.v1" accession: "0001193125-26-330810" form_type: "8-K" ticker: "OBX" cik: "0002130606" company_name: "Gazelle Parent, Inc." filed_at: "2026-08-03T21:08:10+00:00" generated_at: "2026-08-03T21:10:07.476347+00:00" event_type: "m_and_a" sentiment: "neutral" materiality_score: 0.85 calibrated_materiality_score: 0.85 confidence: "high" source: SEC EDGAR --- # Obsidian Therapeutics completes reverse merger with Legacy Obsidian and Galera; begins trading on Nasdaq under OBX ## Summary - Mergers closed Aug 3, 2026; Legacy Obsidian shareholders received 0.1383 shares of Parent per share; Legacy Galera shareholders received 0.7019 shares per share. - Concurrent PIPE of $350M from qualified investors; post-merger ownership: Legacy Obsidian ~51.6%, PIPE investors ~47.2%, Legacy Galera ~1.2%. - New board of six directors appointed, led by Chairperson Maria Fardis; includes CEO Madan Jagasia and other Legacy Obsidian designees. - Galera shareholders receive CVRs for 80% of net proceeds from Legacy Product (5 years) and 95% from Supportive-Care Product Divestiture (10 years). - KPMG appointed as independent auditor; Parent Common Stock to trade on Nasdaq under ticker OBX starting Aug 4, 2026. ## SEC filing metadata - accession: 0001193125-26-330810 - form_type: 8-K - ticker: OBX - cik: 0002130606 - company_name: Gazelle Parent, Inc. - filed_at: 2026-08-03T21:08:10+00:00 - event_type: m_and_a - sentiment: neutral - materiality_score: 0.85 - calibrated_materiality_score: 0.85 - confidence: high - sec_items: 1.01, 2.01, 2.02, 3.02, 3.03, 4.01, 5.01, 5.02, 5.03, 7.01, 9.01 - EDGAR index: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/d309963d8k.htm ## Machine-readable alternates - HTML: https://secwatch.observer/filing/0001193125-26-330810 - JSON: https://secwatch.observer/filing/0001193125-26-330810.json - Plain text: https://secwatch.observer/filing/0001193125-26-330810.txt ## Key facts - Executive change Julie Feder resigned as Director at Gazelle Parent, Inc.. - Action: resigned - Role: Director source text: J. Mel Sorensen, M.D. and Julie Feder resigned from the Board and committees of the Board on which they respectively served, which resignations were not the result of any disagreements with our company relating to our operations, policies or practices. evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Madan Jagasia, M.D., M.S. was appointed as Director at Gazelle Parent, Inc.. - Action: appointed - Role: Director source text: the Board was reconstituted as follows: Peter Barrett, Ph.D., Matthew Norkunas, M.D., M.B.A., Heidi Hagen, Madan Jagasia, M.D., M.S., Maria Fardis, Ph.D., M.B.A., and Robert Ross, M.D. (each designated by Legacy Obsidian). evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Heidi Hagen was appointed as Director at Gazelle Parent, Inc.. - Action: appointed - Role: Director source text: the Board was reconstituted as follows: Peter Barrett, Ph.D., Matthew Norkunas, M.D., M.B.A., Heidi Hagen, Madan Jagasia, M.D., M.S., Maria Fardis, Ph.D., M.B.A., and Robert Ross, M.D. (each designated by Legacy Obsidian). evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change J. Mel Sorensen, M.D. resigned as Director at Gazelle Parent, Inc.. - Action: resigned - Role: Director source text: J. Mel Sorensen, M.D. and Julie Feder resigned from the Board and committees of the Board on which they respectively served, which resignations were not the result of any disagreements with our company relating to our operations, policies or practices. evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Matthew Norkunas, M.D., M.B.A. was appointed as Director at Gazelle Parent, Inc.. - Action: appointed - Role: Director source text: the Board was reconstituted as follows: Peter Barrett, Ph.D., Matthew Norkunas, M.D., M.B.A., Heidi Hagen, Madan Jagasia, M.D., M.S., Maria Fardis, Ph.D., M.B.A., and Robert Ross, M.D. (each designated by Legacy Obsidian). evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Maria Fardis, Ph.D., M.B.A. was appointed as Director at Gazelle Parent, Inc.. - Action: appointed - Role: Director source text: the Board was reconstituted as follows: Peter Barrett, Ph.D., Matthew Norkunas, M.D., M.B.A., Heidi Hagen, Madan Jagasia, M.D., M.S., Maria Fardis, Ph.D., M.B.A., and Robert Ross, M.D. (each designated by Legacy Obsidian). evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Maria Fardis, Ph.D., M.B.A. was appointed as Chairperson of the Board at Gazelle Parent, Inc.. - Action: appointed - Role: Chairperson of the Board source text: Maria Fardis, Ph.D. was appointed Chairperson of the Board. evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Peter Barrett, Ph.D. was appointed as Director at Gazelle Parent, Inc.. - Action: appointed - Role: Director source text: the Board was reconstituted as follows: Peter Barrett, Ph.D., Matthew Norkunas, M.D., M.B.A., Heidi Hagen, Madan Jagasia, M.D., M.S., Maria Fardis, Ph.D., M.B.A., and Robert Ross, M.D. (each designated by Legacy Obsidian). evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm - Executive change Robert Ross, M.D. was appointed as Director at Gazelle Parent, Inc.. - Action: appointed - Role: Director source text: the Board was reconstituted as follows: Peter Barrett, Ph.D., Matthew Norkunas, M.D., M.B.A., Heidi Hagen, Madan Jagasia, M.D., M.S., Maria Fardis, Ph.D., M.B.A., and Robert Ross, M.D. (each designated by Legacy Obsidian). evidence_url: https://www.sec.gov/Archives/edgar/data/2130606/000119312526330810/0001193125-26-330810-index.htm This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.