On the Record · F5
F5 acquisitions, on the record
The businesses F5 bought and sold, as its annual reports describe them, with the cash it reported paying for acquisitions each year and every deal filing since 2016.
Deals its annual reports describe
| Business | Deal | When | Value |
|---|---|---|---|
Lilac Cloud, Inc.Word for word“On January 22, 2023, the Company entered into a Merger Agreement (the “Lilac Merger Agreement”) with Lilac Cloud, Inc. ("Lilac"), a provider of innovative application delivery services.” 10-K for 2023 | acquisition | On January 22, 2023 | — |
Threat Stack, Inc.Word for word“Pursuant to the Threat Stack Merger Agreement, at the effective time of the Merger, the capital stock of Threat Stack and the vested outstanding and unexercised stock options in Threat Stack were cancelled and converted to the right to receive $ 68.9 million in cash, subject to certain adjustments and conditions set forth in the Threat Stack Merger Agreement.” 10-K for 2023 | acquisition | — | $ 68.9 million in cash |
Volterra, Inc.Word for word“Pursuant to the Volterra Merger Agreement, at the effective time of the Merger, the capital stock of Volterra and the vested outstanding and unexercised stock options in Volterra were cancelled and converted to the right to receive $ 427.2 million in cash, subject to certain adjustments and conditions set forth in the Volterra Merger Agreement.” 10-K for 2023 | acquisition | — | $ 427.2 million in cash |
two acquisitions (not named)Word for word“During the second quarter of fiscal 2024, the Company completed two acquisitions.” 10-K for 2024 | acquisition | During the second quarter of fiscal 2024 | — |
CalypsoAI Corp.Word for word“On September 26, 2025, the Company closed on a transaction for the acquisition of CalypsoAI Corp. ("CalypsoAI"), a provider in enterprise AI security for $ 145.2 million in cash, with CalypsoAI immediately becoming a wholly-owned subsidiary of F5 upon the closing of the transaction.” 10-K for 2025 | acquisition | On September 26, 2025 | $ 145.2 million in cash |
| Fiscal year ended | Cash paid for acquisitions (net of cash acquired) | Goodwill from acquisitions |
|---|---|---|
| 2016-09-30 | $0 | — |
| 2017-09-30 | $0 | — |
| 2018-09-30 | $0 | — |
| 2019-09-30 | $611.5 million | $509.4 million |
| 2020-09-30 | $955.6 million | $799.6 million |
| 2021-09-30 | $411.3 million | $351.4 million |
| 2022-09-30 | $67.9 million | $44 million |
| 2023-09-30 | $35 million | $29.4 million |
| 2024-09-30 | $32.9 million | $23.7 million |
| 2025-09-30 | $171.1 million | $131.5 million |
Deal filings since 2016
- 2021-01-25 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
- 2021-01-07 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2020-01-24 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2020-01-24 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
- 2019-12-24 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2019-05-09 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
- 2019-03-11 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2017-05-03 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
Read from F5’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2025-11-25. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.