Cerebras Officer Robert Komin Proposes $6.39M Share Sale

The notice also reports 112,247,109 shares outstanding and identifies NASDAQ as the exchange associated with the proposed sale.

Rhea-AI Filing Summary

Cerebras Systems Inc. (CBRS) is the issuer for Officer Robert Komin’s notice of a proposed sale of 32,500 common shares, with an aggregate market value of $6,394,050. The notice names Morgan Stanley Smith Barney LLC as broker and gives September 29, 2026, as the approximate sale date. The shares are described as previously exercised stock options acquired from the issuer for cash on August 27, 2024.

Key Figures

Proposed sale: 32,500 common shares Aggregate market value: $6,394,050 Shares outstanding: 112,247,109 shares

3 metrics

Proposed sale 32,500 common shares Securities to be sold

Aggregate market value $6,394,050 Proposed sale

Shares outstanding 112,247,109 shares Issuer share count

Key Terms

Rule 144, Previously Exercised Stock Options, Issuer

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Previously Exercised Stock Options financial

"Previously Exercised Stock Options"

Issuer regulatory

"Name of Person from Whose Account the Securities are To Be Sold"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many shares does Robert Komin plan to sell in CBRS?

Officer Robert Komin’s notice lists a proposed sale of 32,500 common shares, with an aggregate market value of $6,394,050. It gives September 29, 2026, as the approximate sale date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/29/2026 - 04:25 PM Accepted by SEC EDGAR 09/29/2026 - 04:24 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001648800
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Cerebras Systems Inc.
SEC File Number	001-43284
Address of Issuer	1237 E. Arques Avenue Sunnyvale CALIFORNIA 94085
Phone	650-933-4980
Name of Person for Whose Account the Securities are To Be Sold	ROBERT KOMIN
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	32500	6394050.00	112247109	09/29/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/27/2024	Previously Exercised Stock Options	Issuer			32500	08/27/2024	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/29/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/30/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Robert Komin
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)