Patronus AI announced a $50 million Series B on June 25, 2026, but no Form D has appeared in SEC EDGAR — more than six weeks past the 15-day Regulation D deadline — leaving the round's legal close unverified.

Patronus AI has no Form D on file with the SEC for its claimed $50 million Series B — and the 15-day regulatory window under Regulation D closed more than six weeks ago. The San Francisco AI startup announced the round on June 25, 2026, led by Greenfield Partners; co-founders Anand Kannappan and Rebecca Qian confirmed the raise via LinkedIn posts, as did Greenfield partner Itay Inbar. Additional participants — Lightspeed, Notable Capital, Datadog, Samsung Next, and angel investor Gokul Rajaram — are named in the founders' LinkedIn posts but do not appear in any formal press statement.

SEC EDGAR shows exactly one Form D for Patronus AI, Inc. (CIK 0002026190): a filing dated June 6, 2024 (Accession No. 0002026190-24-000001). That document predates the Series B announcement by more than two years and almost certainly documents an earlier raise — the company has referenced a $17 million Series A in the past — but neither the amount nor the round designation is confirmed in the public filing summary. The Dissent flagged the missing Series B filing on July 5, eleven days after the announcement; as of August 12, nothing has changed on EDGAR.

When a Regulation D filing runs this far past deadline, there are three standard explanations: the round hasn't legally closed yet, the company used a different securities exemption without saying which, or the paperwork is late. Patronus has not addressed the gap publicly. The company's homepage carries a prominent "Announcing our $50 Million Series B" banner linking to a product blog post; the announcement machinery ran on schedule, the filing machinery hasn't.

One additional flag from EDGAR: the 2024 Form D lists a Dublin, CA address for Patronus AI, Inc. — inconsistent with the company's current San Francisco operations. No public explanation exists for the discrepancy.

What to watch: a new Form D in EDGAR's daily update feed. If one doesn't appear before end of Q3 2026, the company will need to account for either a delayed legal close or an exemption structure that bypasses the standard Regulation D documentation trail.