Lior Susan - 19 Aug 2026 Form 4 Insider Report for Cerebras Systems Inc. (CBRS)

Reporting relationship: Director
Issuer ticker: CBRS
Reported as of: 19 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 Aug 2026, 16:15:09 UTC
Prior SEC filing: 18 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Lior Susan

Key filing fact

Lior Susan filed Form 4 for Cerebras Systems Inc. (CBRS) on 21 Aug 2026.

Key facts

This page summarizes Lior Susan's Form 4 filing for Cerebras Systems Inc. (CBRS).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 21 Aug 2026, 16:15.

Change

Previous filing in this sequence was filed on 18 Aug 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 0001832895 Primary reporting owner

Susan Lior

Relationship: Director
Address: C/O CEREBRAS SYSTEMS INC., 1237 E. ARQUES AVENUE, SUNNYVALE
Signature: /s/ Lior Susan
Signature date: 21 Aug 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: -902,235
Change %: -9.8%
Price
Shares after: 8,295,180
Date: 19 Aug 2026
Ownership: See footnote
Footnotes: F1, F2

CBRS transaction

Class A Common Stock

Other

Transaction value
Shares: +46,422
Change %: +23%
Price
Shares after: 244,206
Date: 19 Aug 2026
Ownership: Direct
Footnotes: F3

CBRS transaction

Class A Common Stock

Other

Transaction value
Shares: +46,780
Change %: +29%
Price
Shares after: 207,571
Date: 19 Aug 2026
Ownership: See footnote
Footnotes: F3, F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Represents a pro-rata, in-kind distribution by the Eclipse Entities (as defined below) to its partners, for no additional consideration (the "Distribution").

Footnote F2

Following the distribution, consists of (i) 493,021 shares of Class A common stock held by Eclipse Continuity Fund I, L.P. ("Eclipse Continuity Fund"); (ii) 4,033,856 shares of Class A common stock held by Eclipse SPV II, L.P. ("Eclipse SPV II"); (iii) 369,527 shares of Class A common stock held by Eclipse SPV XIII, L.P. ("Eclipse SPV XIII"); and (iv) 3,398,776 shares of Class A common stock held by Eclipse Ventures Fund I, L.P. ("Eclipse Fund," and together with Eclipse Continuity Fund, Eclipse SPV II, and Eclipse SPV XIII, "Eclipse Entities"). The Reporting Person is the sole managing member of the general partner of each of the Eclipse Entities and may be deemed to have voting, investment, and dispositive power with respect to the shares held by such entities.

Footnote F3

The shares were obtained pursuant to a pro-rata, in-kind distribution from the Eclipse Entities, for no additional consideration.

Footnote F4

The shares are held directly by an estate-planning vehicle which is controlled by the Reporting Person.