For most of its life as a public company, the SentinelOne (S) investment case rested on a promise: the growth is real, the cash will follow. The annual report for fiscal 2026 (10-K, filed March 19, 2026) is where that promise gets put on the record. The filing states that the company had "negative operating cash flow, but since fiscal 2025, we have achieved positive operating cash flow, primarily due to higher customer collections."
That sentence is the whole story compressed. SentinelOne grew fast and spent faster for years; the operating cash-flow line was negative because the business was funding its own expansion. The turn to positive operating cash flow — and, per the filing, one driven "primarily" by higher customer collections rather than a one-time accounting effect — is the difference between a company that needs the capital markets and one that increasingly funds itself.
The collections framing is worth holding onto. Operating cash flow can be flattered by timing — bill a lot in March, collect in April — so the durable read is whether collections rise because the installed base is larger and paying, not because a single quarter's invoicing happened to land favorably. The 10-K attributes the improvement to collections growth, which is the constructive version of the story; the discipline is to keep watching whether it holds across quarters rather than spiking once.
This does not by itself settle the GAAP-profitability question — operating cash flow and GAAP net income are different lines, and a cash-flow turn can coexist with continued GAAP losses. But it removes the most acute risk in the bear case: that growth could only ever be bought with cash. Read SentinelOne's 10-K at sec.gov; surfaced via EdgarBeast, the SEC filing data API and evidence index.
The takeaway: the SentinelOne cash story has shifted from future tense to past tense in the filings. The bull case now has a date attached — fiscal 2025 — and the burden moves to whether positive operating cash flow compounds from here.