Cerebras Systems Inc. 4

Steven Vassallo, via a revocable trust, sold 49,000 shares of Cerebras Systems Inc. Class A Common Stock on 2026-08-14 for about $10.7 million, alongside non-sale conversions and in-kind distributions among affiliated Foundation Capital entities and trusts.

On this Form 4, reporting person Steven Vassallo, a venture-capital affiliated insider of Cerebras Systems Inc., reports a series of conversions of Class B Common Stock into Class A Common Stock on June 24, 2026 and August 14, 2026 for no additional consideration across several Foundation Capital vehicles (Foundation Capital VIII, L.P., Foundation Capital VIII Principals Fund, L.L.C., and Foundation Capital Leadership Fund II, L.P.), followed by pro rata in‑kind distributions of the resulting Class A shares from those funds to their general partners, management entities, and related revocable and irrevocable trusts. These J‑code transactions are characterized in the footnotes as non-sale, non-purchase restructuring distributions among affiliated entities and trusts, with Vassallo repeatedly disclaiming beneficial ownership except to the extent of his pecuniary interest. The only true market transactions are a series of open‑market sales by a revocable family trust on August 14, 2026, in which an aggregate of 49,000 shares of Class A Common Stock were sold in multiple tranches at weighted average prices between approximately $216.38 and $219.97 per share, for total proceeds of roughly $10.7 million, leaving 49,599 shares held in the revocable trust afterward; additional holdings remain indirectly through the various Foundation Capital and trust entities as described in the footnotes.

Filing Facts

CIK

2021728

Ticker

CBRS

Form

4

Source Type

sec

Accession

0001567929-26-000003

Alert Tier

9