---
schema_version: "secwatch.filing_event.v1"
accession: "0000912562-26-000016"
form_type: "8-K"
ticker: "ROCK"
cik: "0000912562"
company_name: "GIBRALTAR INDUSTRIES, INC."
filed_at: "2026-01-22T23:59:59+00:00"
generated_at: "2026-05-16T09:11:57.579995+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Gibraltar receives FTC early termination of HSR waiting period for acquisition

## Summary
- FTC granted early termination of HSR Act waiting period on January 16, 2026.
- Acquisition of Arundel Square Garden, LLC remains subject to other customary closing conditions.
- Transaction initially announced on November 16, 2025 via Securities Purchase Agreement.

## SEC filing metadata
- accession: 0000912562-26-000016
- form_type: 8-K
- ticker: ROCK
- cik: 0000912562
- company_name: GIBRALTAR INDUSTRIES, INC.
- filed_at: 2026-01-22T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/912562/000091256226000016/0000912562-26-000016-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/912562/000091256226000016/rock-20260122.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000912562-26-000016
- JSON: https://secwatch.observer/filing/0000912562-26-000016.json
- Plain text: https://secwatch.observer/filing/0000912562-26-000016.txt

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