---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-21-031767"
form_type: "8-K"
ticker: "FFIV"
cik: "0001048695"
company_name: "F5, INC."
filed_at: "2021-09-20T23:59:59+00:00"
generated_at: "2026-06-29T02:31:08.939507+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# F5 acquires Threat Stack for $68M; expects immaterial financial impact

## Summary
- Purchase consideration of $68 million, financed from balance sheet cash.
- Expected to close in F5's Q1 fiscal 2022 (by Dec 31, 2021).
- Threat Stack to add ~$15M revenue in FY2022; no change to operating margin targets.
- Threat Stack is a cloud security and workload protection provider based in Boston.

## SEC filing metadata
- accession: 0001140361-21-031767
- form_type: 8-K
- ticker: FFIV
- cik: 0001048695
- company_name: F5, INC.
- filed_at: 2021-09-20T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1048695/000114036121031767/0001140361-21-031767-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1048695/000114036121031767/brhc10029102_8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-21-031767
- JSON: https://secwatch.observer/filing/0001140361-21-031767.json
- Plain text: https://secwatch.observer/filing/0001140361-21-031767.txt

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