FilingsForm 4

Revocable family trust with Cerebras Systems director Vassallo Steven as co-trustee sold 50,000 shares for $10.52 million on Sep 4, 2026

From the public record1 min read

Published Oct 27, 2026 · 21:48 UTCFiled Sep 8, 2026

Value$10.52 million, held indirectly

Shares50,000, held indirectly

Average price$210.30

FiledSep 8

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

A revocable family trust, of which Vassallo Steven, a director of Cerebras Systems, is a co-trustee, sold 50,000 shares for $10.52 million on Sep 4, 2026, at an average of $210.30 a share. A Form 4, the form an insider files when trading the company's shares, lists the sale lines as held indirectly by the trust and states 171,977 Class A shares held indirectly by it after the last sale line. A footnote on the form says Vassallo Steven disclaims beneficial ownership of the trust's shares except to the extent of his proportionate pecuniary interest. The Form 4 was filed Sep 8, 2026 and is on the SEC's EDGAR site.1 2 3 4 5 6 7 8 9 10 11 12

How each figure was checked12 facts

Cerebras Systems Form 4 0001628280-26-060989: ownerVassallo StevenOur database
Cerebras Systems Form 4 0001628280-26-060989: relationshipdirectorOur database
Cerebras Systems Form 4 0001628280-26-060989: shares50,000Our database
Cerebras Systems Form 4 0001628280-26-060989: value$10.52 millionOur database
Cerebras Systems Form 4 0001628280-26-060989: first dateSep 4, 2026Our database
Cerebras Systems Form 4 0001628280-26-060989: average price$210.3Our database
Cerebras Systems Form 4 0001628280-26-060989: sidesaleOur database
Cerebras Systems Form 4 0001628280-26-060989: by holderthe sale lines of this form, by who held the shares: By Revocable Trust (held indirectly): 50000 shares for 10515135.38 USDOur database
Footnote F2 of the Form 4 filed Sep 8, 2026 (it is attached to that document's line N1, N2, N3)Footnotes of the Form 4 (SEC EDGAR) ↗
Cerebras Systems Form 4 0001628280-26-060989: holding3 sale lines held indirectly (By Revocable Trust)Our database
Cerebras Systems Form 4 0001628280-26-060989: shares afterafter the last sale line the form states 171977 shares of Class A Common Stock held indirectly (By Revocable Trust)Our database
Cerebras Systems Form 4 0001628280-26-060989: filed onSep 8, 2026Our database

The record

Issuer: Cerebras Systems (CIK 2021728, filed as Cerebras Systems Inc.)
Form: 4
Accession: 0001628280-26-060989
Filed: Sep 8, 2026
Period of report: Sep 4, 2026
Reporting owner: Vassallo Steven (CIK 1567929)
Relationship: director
Rule 10b5-1 checkbox: Not ticked
Line 1: S (sale) · 21,117 Class A Common Stock at $209.81 · Sep 4, 2026 · disposed, indirectly, By Revocable Trust · 200,860 held after · footnotes F1 and F2
Line 2: S (sale) · 21,773 Class A Common Stock at $210.37 · Sep 4, 2026 · disposed, indirectly, By Revocable Trust · 179,087 held after · footnotes F2 and F3
Line 3: S (sale) · 7,110 Class A Common Stock at $211.56 · Sep 4, 2026 · disposed, indirectly, By Revocable Trust · 171,977 held after · footnotes F2 and F4
Footnote F1: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.00 to $209.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
Footnote F2: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.
Footnote F3: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.00 to $210.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
Footnote F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.00 to $211.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
Footnote F5: The securities are held by an irrevocable GST trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.