Key facts
- This page summarizes Andrew D. Feldman's Form 4 filing for Cerebras Systems Inc. (CBRS).
- 21 reported transactions and 5 derivative rows are listed below.
- Accepted by SEC: 08 Sep 2026, 20:17.
Andrew D. Feldman - 04 Sep 2026 Form 4 Insider Report for Cerebras Systems Inc. (CBRS)
- Reporting relationship
- CEO, President, Director
- Issuer ticker
- CBRS
- Reported as of
- 04 Sep 2026
- Net transaction value
- -$7,879,687
- SEC form
- 4
- Accepted by SEC
- 08 Sep 2026, 20:17:56 UTC
- Prior SEC filing
- 25 Aug 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Robert Mills, Attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Andrew D. Feldman filed Form 4 for Cerebras Systems Inc. (CBRS) on 08 Sep 2026.
Change
- Previous filing in this sequence was filed on 25 Aug 2026.
- Current net transaction value: -$7,879,687.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
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
- 08 Sep 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
CBRS
transaction
Class A Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +37,441
- Change %
- +222%
- Price
- $0.000000*
- Shares after
- 54,294
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F1
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $219,098
- Shares
- -1,100
- Change %
- -2%
- Price
- $199.18
- Shares after
- 53,194
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F3
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $60,237
- Shares
- -300
- Change %
- -0.56%
- Price
- $200.79
- Shares after
- 52,894
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F4
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $60,525
- Shares
- -300
- Change %
- -0.57%
- Price
- $201.75
- Shares after
- 52,594
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F5
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $182,673
- Shares
- -900
- Change %
- -1.7%
- Price
- $202.97
- Shares after
- 51,694
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F6
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $244,872
- Shares
- -1,200
- Change %
- -2.3%
- Price
- $204.06
- Shares after
- 50,494
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F7
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $165,040
- Shares
- -800
- Change %
- -1.6%
- Price
- $206.30
- Shares after
- 49,694
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F8
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $311,700
- Shares
- -1,500
- Change %
- -3%
- Price
- $207.80
- Shares after
- 48,194
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F9
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $356,490
- Shares
- -1,707
- Change %
- -3.5%
- Price
- $208.84
- Shares after
- 46,487
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F10
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $1,411,343
- Shares
- -6,721
- Change %
- -14%
- Price
- $209.99
- Shares after
- 39,766
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F11
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $1,297,729
- Shares
- -6,153
- Change %
- -15%
- Price
- $210.91
- Shares after
- 33,613
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F12
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $1,575,952
- Shares
- -7,439
- Change %
- -22%
- Price
- $211.85
- Shares after
- 26,174
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F13
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $708,145
- Shares
- -3,324
- Change %
- -13%
- Price
- $213.04
- Shares after
- 22,850
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F14
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $833,763
- Shares
- -3,897
- Change %
- -17%
- Price
- $213.95
- Shares after
- 18,953
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F15
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $300,972
- Shares
- -1,400
- Change %
- -7.4%
- Price
- $214.98
- Shares after
- 17,553
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F16
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $129,486
- Shares
- -600
- Change %
- -3.4%
- Price
- $215.81
- Shares after
- 16,953
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2, F17
CBRS
transaction
Class A Common Stock
Sale
- Transaction value
- $21,662
- Shares
- -100
- Change %
- -0.59%
- Price
- $216.62
- Shares after
- 16,853
- Date
- 04 Sep 2026
- Ownership
- Direct
- Footnotes
- F2
CBRS
transaction
Class A Common Stock
Other
- Transaction value
- Shares
- +120
- Change %
- +17%
- Price
- $0.000000*
- Shares after
- 806
- Date
- 08 Sep 2026
- Ownership
- By Feldman Bravo Family Trust
- Footnotes
- F18
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
CBRS
transaction
Derivative
Stock Option
Options Exercise
- Transaction value
- Shares
- -37,441
- Change %
- -6.7%
- Price
- $0.000000*
- Shares after
- 525,000
- Date
- 04 Sep 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 37,441
- Exercise price
- $2.72
- Footnotes
- F19
CBRS
transaction
Derivative
Class B Common Stock
Options Exercise
- Transaction value
- Shares
- +37,441
- Change %
- +0.27%
- Price
- $0.000000*
- Shares after
- 13,982,575
- Date
- 04 Sep 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 37,441
- Exercise price
- Footnotes
- F1
CBRS
transaction
Derivative
Class B Common Stock
Conversion of derivative security
- Transaction value
- Shares
- -37,441
- Change %
- -0.27%
- Price
- $0.000000*
- Shares after
- 13,945,134
- Date
- 04 Sep 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 37,441
- Exercise price
- Footnotes
- F1
CBRS
holding
Derivative
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 50,000
- Date
- 04 Sep 2026
- Ownership
- By GRAT 1
- Underlying class
- Class A Common Stock
- Underlying amount
- 50,000
- Exercise price
- Footnotes
- F1
CBRS
holding
Derivative
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 50,000
- Date
- 04 Sep 2026
- Ownership
- By GRAT 2
- Underlying class
- Class A Common Stock
- Underlying amount
- 50,000
- 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 19 footnotes
Footnote F1
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 F2
The sale reported on this Form 4 represents shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2026.
Footnote F3
The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $199.00 to $199.87, 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 F4
The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $200.16 to $201.12, 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 $201.45 to $202.11, 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 $202.59 to $203.43, 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 $203.65 to $204.62, 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 $206.02 to $206.53, 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 $207.21 to $208.19, 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 $208.39 to $209.38, 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 $209.41 to $210.34, 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 $210.42 to $211.42, 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 $211.42 to $212.39, 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 $212.50 to $213.49, 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 $213.50 to $214.48, 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 $214.52 to $215.33, 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 $215.53 to $216.06, 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
Represents a pro-rata, in-kind distribution not for additional consideration.
Footnote F19
The stock option is fully vested and exercisable.