Andrew D. Feldman - 17 Aug 2026 Form 4 Insider Report for Cerebras Systems Inc. (CBRS)

Reporting relationship: CEO, President, Director
Issuer ticker: CBRS
Reported as of: 17 Aug 2026
Net transaction value: -$5,920,937
SEC form: 4
Accepted by SEC: 19 Aug 2026, 21:12:26 UTC
Prior SEC filing: 01 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Robert Mills, Attorney-in-fact

Key filing fact

Andrew D. Feldman filed Form 4 for Cerebras Systems Inc. (CBRS) on 19 Aug 2026.

Key facts

This page summarizes Andrew D. Feldman's Form 4 filing for Cerebras Systems Inc. (CBRS).
29 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 19 Aug 2026, 21:12.

Change

Previous filing in this sequence was filed on 01 Jul 2026.
Current net transaction value: -$5,920,937.

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 0002039573 Primary reporting owner

Feldman Andrew D.

Relationship: CEO, President, Director
Address: C/O CEREBRAS SYSTEMS INC., 1237 E. ARQUES AVENUE, SUNNYVALE
Signature: /s/ Robert Mills, Attorney-in-fact
Signature date: 19 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: +298
Change %: +111%
Price: $0.000000^*
Shares after: 566
Date: 17 Aug 2026
Ownership: By Feldman Bravo Family Trust
Footnotes: F1

CBRS transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +93,497
Change %
Price
Shares after: 93,497
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F2

CBRS transaction

Class A Common Stock

Sale

Transaction value: $430
Shares: -2
Change %: -0%
Price: $214.85
Shares after: 93,495
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3

CBRS transaction

Class A Common Stock

Sale

Transaction value: $286,194
Shares: -1,327
Change %: -1.4%
Price: $215.67
Shares after: 92,168
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F4

CBRS transaction

Class A Common Stock

Sale

Transaction value: $489,930
Shares: -2,264
Change %: -2.5%
Price: $216.40
Shares after: 89,904
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F5

CBRS transaction

Class A Common Stock

Sale

Transaction value: $366,405
Shares: -1,684
Change %: -1.9%
Price: $217.58
Shares after: 88,220
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F6

CBRS transaction

Class A Common Stock

Sale

Transaction value: $457,404
Shares: -2,093
Change %: -2.4%
Price: $218.54
Shares after: 86,127
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F7

CBRS transaction

Class A Common Stock

Sale

Transaction value: $521,283
Shares: -2,374
Change %: -2.8%
Price: $219.58
Shares after: 83,753
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F8

CBRS transaction

Class A Common Stock

Sale

Transaction value: $1,028,526
Shares: -4,666
Change %: -5.6%
Price: $220.43
Shares after: 79,087
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F9

CBRS transaction

Class A Common Stock

Sale

Transaction value: $946,341
Shares: -4,273
Change %: -5.4%
Price: $221.47
Shares after: 74,814
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F10

CBRS transaction

Class A Common Stock

Sale

Transaction value: $445,730
Shares: -2,004
Change %: -2.7%
Price: $222.42
Shares after: 72,810
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F11

CBRS transaction

Class A Common Stock

Sale

Transaction value: $137,701
Shares: -616
Change %: -0.85%
Price: $223.54
Shares after: 72,194
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F12

CBRS transaction

Class A Common Stock

Sale

Transaction value: $56,804
Shares: -253
Change %: -0.35%
Price: $224.52
Shares after: 71,941
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F13

CBRS transaction

Class A Common Stock

Sale

Transaction value: $94,714
Shares: -420
Change %: -0.58%
Price: $225.51
Shares after: 71,521
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F14

CBRS transaction

Class A Common Stock

Sale

Transaction value: $129,762
Shares: -573
Change %: -0.8%
Price: $226.46
Shares after: 70,948
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F15

CBRS transaction

Class A Common Stock

Sale

Transaction value: $98,906
Shares: -435
Change %: -0.61%
Price: $227.37
Shares after: 70,513
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F16

CBRS transaction

Class A Common Stock

Sale

Transaction value: $27,195
Shares: -119
Change %: -0.17%
Price: $228.53
Shares after: 70,394
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F17

CBRS transaction

Class A Common Stock

Sale

Transaction value: $42,221
Shares: -184
Change %: -0.26%
Price: $229.46
Shares after: 70,210
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F18

CBRS transaction

Class A Common Stock

Sale

Transaction value: $13,610
Shares: -59
Change %: -0.08%
Price: $230.67
Shares after: 70,151
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F19

CBRS transaction

Class A Common Stock

Sale

Transaction value: $70,397
Shares: -304
Change %: -0.43%
Price: $231.57
Shares after: 69,847
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F20

CBRS transaction

Class A Common Stock

Sale

Transaction value: $80,719
Shares: -347
Change %: -0.5%
Price: $232.62
Shares after: 69,500
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F21

CBRS transaction

Class A Common Stock

Sale

Transaction value: $65,560
Shares: -281
Change %: -0.4%
Price: $233.31
Shares after: 69,219
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F22

CBRS transaction

Class A Common Stock

Sale

Transaction value: $173,273
Shares: -739
Change %: -1.1%
Price: $234.47
Shares after: 68,480
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F23

CBRS transaction

Class A Common Stock

Sale

Transaction value: $88,784
Shares: -377
Change %: -0.55%
Price: $235.50
Shares after: 68,103
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F24

CBRS transaction

Class A Common Stock

Sale

Transaction value: $60,053
Shares: -254
Change %: -0.37%
Price: $236.43
Shares after: 67,849
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F25

CBRS transaction

Class A Common Stock

Sale

Transaction value: $3,321
Shares: -14
Change %: -0.02%
Price: $237.23
Shares after: 67,835
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3

CBRS transaction

Class A Common Stock

Sale

Transaction value: $2,865
Shares: -12
Change %: -0.02%
Price: $238.78
Shares after: 67,823
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3

CBRS transaction

Class A Common Stock

Sale

Transaction value: $232,810
Shares: -970
Change %: -1.4%
Price: $240.01
Shares after: 66,853
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F3, F26

Reported derivative securities

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

CBRS transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -93,497
Change %: -0.67%
Price: $0.000000^*
Shares after: 13,945,134
Date: 18 Aug 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 93,497
Exercise price
Footnotes: F2

CBRS holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 50,000
Date: 17 Aug 2026
Ownership: By GRAT 1
Underlying class: Class A Common Stock
Underlying amount: 50,000
Exercise price
Footnotes: F2

CBRS holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 50,000
Date: 17 Aug 2026
Ownership: By GRAT 2
Underlying class: Class A Common Stock
Underlying amount: 50,000
Exercise price
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 26 footnotes

Footnote F1

Represents a pro-rata, in-kind distribution not for additional consideration.

Footnote F2

The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date.

Footnote F3

These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.

Footnote F4

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $215.01 to $215.99, 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 sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $216.00 to $216.99, 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 F6

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $217.00 to $217.99, 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 F7

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $218.00 to $218.99, 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 F8

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $219.00 to $219.99, 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 F9

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $220.00 to $220.99, 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 F10

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $221.00 to $221.99, 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 F11

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $222.00 to $222.99, 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 F12

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $223.00 to $223.99, 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 F13

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $224.12 to $224.92, 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 F14

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $225.01 to $225.98, 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 F15

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $226.01 to $226.97, 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 F16

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $227.01 to $227.96, 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 F17

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $228.01 to $228.99, 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 F18

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $229.00 to $229.88, 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 F19

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $230.11 to $230.99, 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 F20

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $231.12 to $231.99, 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 F21

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $232.05 to $232.99, 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 F22

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $233.00 to $233.92, 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 F23

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $234.04 to $234.99, 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 F24

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $235.00 to $235.99, 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 F25

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $236.01 to $236.97, 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 F26

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $240.00 to $240.01, 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.