Elena A. Donio - 15 May 2026 Form 4 Insider Report for Cerebras Systems Inc. (CBRS)

Reporting relationship: Director
Issuer ticker: CBRS
Reported as of: 15 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 15 May 2026, 18:50:06 UTC
Prior SEC filing: 13 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Shirley Li, Attorney-in-Fact

Key filing fact

Elena A. Donio filed Form 4 for Cerebras Systems Inc. (CBRS) on 15 May 2026.

Key facts

This page summarizes Elena A. Donio's Form 4 filing for Cerebras Systems Inc. (CBRS).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 15 May 2026, 18:50.

Change

Previous filing in this sequence was filed on 13 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001219068 Primary reporting owner

DONIO ELENA A.

Relationship: Director
Address: C/O CEREBRAS SYSTEMS INC., 1237 E. ARQUES AVENUE, SUNNYVALE
Signature: /s/ Shirley Li, Attorney-in-Fact
Signature date: 15 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CBRS transaction

Class A Common Stock

Other

Transaction value
Shares: -33,701
Change %: -100%
Price
Shares after: 0
Date: 15 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CBRS transaction Derivative

Class B Common Stock

Other

Transaction value
Shares: +33,701
Change %
Price
Shares after: 33,701
Date: 15 May 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 33,701
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Immediately prior to the completion of the Issuer's Initial public offering, each share of Class A common stock beneficially owned by the Reporting Person, including shares of Class A common stock underlying restricted stock unit ("RSU") and stock option awards, were reclassified into one share of Class B common stock in an exempt transaction pursuant to Rule 16b-7. Each share of Class B common stock is convertible at any time at the option of the holder into one share of Class A common stock.