SentinelOne's acquisitions: what it paid, per SEC filings

SentinelOne has made four acquisitions since 2024, two of which closed in September 2025. Below is what each cost according to SentinelOne's SEC filings.

Feb 1, 2024: Stride Security, $7.5M Mostly allocated to developed technology and goodwill. SEC filing

Not stated: PingSafe, $83M Purchase consideration per SEC purchase accounting. SEC filing

Sep 5, 2025: Prompt Security, $159.3M Purchase consideration per SEC purchase accounting. SEC filing

Sep 22, 2025: Observo AI, $185.3M Purchase consideration per SEC purchase accounting. SEC filing

Sources SentinelOne SEC filings: 1, 2, 3

Image: SentinelOne office, Mountain View. Credit: SentinelOne