Before SentinelOne (S) had a cash-flow story to tell, it had ARR. The company's annual filings are explicit about the metric's centrality: SentinelOne states that it believes "ARR is a key operating metric to measure our business because it is driven by our ability to acquire new" customers and grow with them over time.
Annual recurring revenue is the annualized value of a subscription business's committed contracts — what the installed base would generate over the next twelve months at current run-rate. For a company still scaling, ARR is more informative than a single quarter's GAAP revenue because it smooths the lumpiness of deal timing and revenue recognition and shows the underlying trajectory of the subscription engine.
The reason SentinelOne frames ARR as driven by acquiring new customers and expanding existing ones is that those are the only two levers that durably move it: win new logos, or get current customers to buy more. That framing is also a useful audit tool — if ARR growth slows, the diagnostic question is which lever weakened, new-customer acquisition or net expansion. The filing's own language tells you what to decompose.
ARR's importance here connects directly to the company's recent inflection. The same business that grew ARR aggressively for years is the one that, per its fiscal 2026 10-K, has now run positive operating cash flow since fiscal 2025 — ARR built the base, and collections on that base produced the cash turn. Read SentinelOne's annual filing at sec.gov; surfaced via EdgarBeast, the SEC filing data API and evidence index.
The takeaway: ARR is SentinelOne's spine, and the company says so in its filings. Read it as the annualized commitment of the subscription base, decompose its growth into new versus expansion, and connect it to the cash-flow line — because ARR is what eventually became cash.