---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-352388"
form_type: "8-K/A"
ticker: "OBX"
cik: "0002130606"
company_name: "Gazelle Parent, Inc."
filed_at: "2026-08-14T20:29:52+00:00"
generated_at: "2026-08-14T20:33:12.040011+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Obsidian completes merger with Galera, closes $350M PIPE; H1 net loss $45.5M

## Summary
- Merger closed July 31, 2026; Obsidian and Galera now subsidiaries of Gazelle Parent, Inc.
- Concurrent PIPE financing raised ~$350M gross proceeds, funding operations for next 12 months.
- H1 2026 net loss $45.5M; R&D expenses $37.3M, down from $44.1M YoY.
- Cash, equivalents, and marketable securities $34.4M at June 30, 2026 (pre-PIPE).
- Lead candidate OBX-115 in Phase 2 for melanoma and Phase 1 for NSCLC.

## SEC filing metadata
- accession: 0001193125-26-352388
- form_type: 8-K/A
- ticker: OBX
- cik: 0002130606
- company_name: Gazelle Parent, Inc.
- filed_at: 2026-08-14T20:29:52+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2130606/000119312526352388/0001193125-26-352388-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2130606/000119312526352388/obx-20260731.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-352388
- JSON: https://secwatch.observer/filing/0001193125-26-352388.json
- Plain text: https://secwatch.observer/filing/0001193125-26-352388.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.