Cerebras' Andrew Feldman intends 237K-share sale

Cerebras Systems Inc. (CBRS) was notified that Andrew Feldman intends to sell common stock under Rule 144.

Rhea-AI Filing Summary

Cerebras Systems Inc. (CBRS) was notified that Andrew Feldman intends to sell common stock under Rule 144. The notice covers 237,559 shares of common stock to be sold through Morgan Stanley Smith Barney LLC, in connection with an exercise of stock options on 08/21/2026, with the stock listed on NASDAQ. Feldman previously sold shares in June and August 2026.

Key Figures

Shares to be sold: 237,559 shares of common stock Prior sale 1 – shares: 26,644 shares of common stock Prior sale 1 – proceeds: $5,920,936.26 +3 more

6 metrics

Shares to be sold 237,559 shares of common stock Planned Rule 144 sale tied to stock option exercise on 08/21/2026

Prior sale 1 – shares 26,644 shares of common stock Sold by Andrew Feldman on 08/18/2026

Prior sale 1 – proceeds $5,920,936.26 Aggregate amount for 26,644 shares sold on 08/18/2026

Prior sale 2 – shares 17,990 shares of common stock Sold by Andrew Feldman on 06/25/2026

Prior sale 2 – proceeds $3,113,282.84 Aggregate amount for 17,990 shares sold on 06/25/2026

Planned sale date 08/21/2026 Date of stock option exercise and associated planned sale under Rule 144

Key Terms

Rule 144, Exercise of Stock Options, Executive Financial Services

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.

Exercise of Stock Options financial

"Common | 08/21/2026 | Exercise of Stock Options | Issuer"

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

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

What does the Form 144 filing for CBRS disclose about Andrew Feldman’s planned sale?

It discloses that Andrew Feldman plans to sell 237,559 shares of Cerebras Systems Inc. common stock under Rule 144, tied to an exercise of stock options on 08/21/2026, with Morgan Stanley Smith Barney LLC as the broker.

How many CBRS shares has Andrew Feldman sold in the past three months?

The notice lists two prior sales: 26,644 shares on 08/18/2026 for $5,920,936.26 and 17,990 shares on 06/25/2026 for $3,113,282.84.

What type of securities are covered in Andrew Feldman’s CBRS Form 144?

The Form 144 covers common stock of Cerebras Systems Inc., to be sold in connection with the exercise of stock options on 08/21/2026.

Which broker is handling the planned CBRS share sale for Andrew Feldman?

The planned sale of 237,559 CBRS common shares is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York, NY.

On which market are Cerebras Systems Inc. shares referenced in this Form 144 traded?

The notice identifies Cerebras Systems Inc. common stock as traded on NASDAQ in connection with Andrew Feldman’s planned Rule 144 sale.

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

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Available on EDGAR 08/21/2026 - 04:45 PM EDT Accepted by SEC EDGAR 08/21/2026 - 04:44 PM EDT 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	0002039573
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	ANDREW FELDMAN
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	Director
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	237559	49851756.15	112247109	08/21/2026	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	08/21/2026	Exercise of Stock Options	Issuer			237559	08/21/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
ANDREW FELDMAN 1237 E. Arques Avenue Sunnyvale CA 94085	Common	08/18/2026	26644	5920936.26
ANDREW FELDMAN 1237 E. Arques Avenue Sunnyvale CA 94085	Common	06/25/2026	17990	3113282.84

144: Remarks and Signature

Remarks
Date of Notice	08/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/20/2026
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/ Andrew Feldman
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)