TapewireFind a company

person · Reporting owner

Mallick Dhiraj

Disclosed activity across 1 company

Tapewire entity
21298
SEC CIK
0002039572

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Cerebras Systems Inc.CBRS · Entity 3072Chief Operating OfficerSeptember 29, 2026October 01, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Cerebras Systems Inc.

Report date September 29, 2026 · Filed October 01, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect0 Ending reported balance After 2026-09-29 transaction · row 20
20 source rows · reconciled sequence

Row 1 · 2026-09-29 · Conversion · Acquired 276,000 · Balance 396,000

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.

Row 2 · 2026-09-29 · Sale · Disposed 598 · Balance 395,402

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 June 30, 2026

F3: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $212.92 to $212.94, 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.

Row 3 · 2026-09-29 · Sale · Disposed 18,274 · Balance 377,128

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 June 30, 2026

F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.81 to $212.80, 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.

Row 4 · 2026-09-29 · Sale · Disposed 41,391 · Balance 335,737

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 June 30, 2026

F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.81 to $211.81, 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.

Row 5 · 2026-09-29 · Sale · Disposed 46,427 · Balance 289,310

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 June 30, 2026

F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.81 to $210.80, 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.

Row 6 · 2026-09-29 · Sale · Disposed 41,278 · Balance 248,032

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 June 30, 2026

F7: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.81 to $209.80, 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.

Row 7 · 2026-09-29 · Sale · Disposed 20,714 · Balance 227,318

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 June 30, 2026

F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.81 to $208.80, 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.

Row 8 · 2026-09-29 · Sale · Disposed 9,652 · Balance 217,666

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 June 30, 2026

F9: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.68 to $207.67, 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.

Row 9 · 2026-09-29 · Sale · Disposed 9,047 · Balance 208,619

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 June 30, 2026

F10: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.67 to $206.66, 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.

Row 10 · 2026-09-29 · Sale · Disposed 8,729 · Balance 199,890

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 June 30, 2026

F11: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.65 to $205.64, 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.

Row 11 · 2026-09-29 · Sale · Disposed 27,492 · Balance 172,398

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 June 30, 2026

F12: 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 $204.65, 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.

Row 12 · 2026-09-29 · Sale · Disposed 9,682 · Balance 162,716

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 June 30, 2026

F13: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $202.63 to $203.61, 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.

Row 13 · 2026-09-29 · Sale · Disposed 5,637 · Balance 157,079

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 June 30, 2026

F14: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $201.44 to $202.39, 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.

Row 14 · 2026-09-29 · Sale · Disposed 22,915 · Balance 134,164

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 June 30, 2026

F15: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $200.42 to $201.41, 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.

Row 15 · 2026-09-29 · Sale · Disposed 17,848 · Balance 116,316

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 June 30, 2026

F16: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $199.42 to $200.37, 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.

Row 16 · 2026-09-29 · Sale · Disposed 17,000 · Balance 99,316

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 June 30, 2026

F17: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $198.42 to $199.41, 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.

Row 17 · 2026-09-29 · Sale · Disposed 5,170 · Balance 94,146

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 June 30, 2026

F18: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $197.41 to $198.40, 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.

Row 18 · 2026-09-29 · Sale · Disposed 6,613 · Balance 87,533

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 June 30, 2026

F19: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $196.41 to $197.40, 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.

Row 19 · 2026-09-29 · Sale · Disposed 18,703 · Balance 68,830

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 June 30, 2026

F20: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $195.27 to $195.96, 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.

Row 20 · 2026-09-29 · Sale · Disposed 68,830 · Balance 0

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 June 30, 2026

F21: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $194.27 to $195.26, 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.

Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $0.98 · Expires 2028-07-16Direct91,370 Reported balance After 2026-09-29 transaction · row 21 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 21 · 2026-09-29 · Exercise / conversion · Disposed 276,000 · Balance 91,370

F22: The stock option is fully vested and exercisable.

Class B Common StockSEC Table II · derivative / convertible securityDirect796,807 Reported balance After 2026-09-29 transaction · row 22 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 22 · 2026-09-29 · Exercise / conversion · Acquired 276,000 · Balance 796,807

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.

Class B Common StockSEC Table II · derivative / convertible securityDirect520,807 Reported balance After 2026-09-29 transaction · row 23 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 23 · 2026-09-29 · Conversion · Disposed 276,000 · Balance 520,807

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.

Filing footnotes · ownership attribution and instrument terms

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.

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 June 30, 2026

F3: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $212.92 to $212.94, 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.

F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.81 to $212.80, 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.

F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.81 to $211.81, 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.

F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.81 to $210.80, 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.

F7: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.81 to $209.80, 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.

F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.81 to $208.80, 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.

F9: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.68 to $207.67, 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.

F10: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.67 to $206.66, 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.

F11: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.65 to $205.64, 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.

F12: 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 $204.65, 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.

F13: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $202.63 to $203.61, 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.

F14: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $201.44 to $202.39, 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.

F15: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $200.42 to $201.41, 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.

F16: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $199.42 to $200.37, 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.

F17: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $198.42 to $199.41, 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.

F18: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $197.41 to $198.40, 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.

F19: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $196.41 to $197.40, 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.

F20: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $195.27 to $195.96, 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.

F21: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $194.27 to $195.26, 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.

F22: The stock option is fully vested and exercisable.

Transaction history

JSON API
Reset

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 18, 2026 Filed Aug 21, 2026 00:05 UTC Cerebras Systems Inc. CBRS · Entity 3072 ConversionClass A Common Stock 158,889 Not disclosed Not disclosed
Disclosure

SEC source: 0001628280-26-058313 · wk-form4_1787270737.xml · nonDerivative · entry 1

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,889

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: 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.

F1 · price: 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.

Read SEC document
June 30, 2026 Filed Jul 1, 2026 20:21 UTC Cerebras Systems Inc. CBRS · Entity 3072 ConversionClass B Common Stock · Derivative 10,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-046550 · wk-form4_1782937278.xml · derivative · entry 3

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 679,696

Underlying: Class A Common Stock · 10,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
June 30, 2026 Filed Jul 1, 2026 20:21 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 10,000 $206.51 $2,065,100.00
Disclosure

SEC source: 0001628280-26-046550 · wk-form4_1782937278.xml · nonDerivative · entry 2

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F2 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.08 to $206.91, 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.

Read SEC document
June 30, 2026 Filed Jul 1, 2026 20:21 UTC Cerebras Systems Inc. CBRS · Entity 3072 ConversionClass A Common Stock 10,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001628280-26-046550 · wk-form4_1782937278.xml · nonDerivative · entry 1

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: 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.

F1 · price: 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 800 $181.62 $145,296.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 28

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F24 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $181.17 to $182.11, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,200 $180.50 $216,600.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 27

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 800

F23 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $180.13 to $180.99, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,100 $179.67 $197,637.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 26

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000

F22 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $179.11 to $180.05, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 200 $178.12 $35,624.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 25

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,100

F21 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $178.03 to $178.20, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 200 $177.23 $35,446.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 24

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,300

F20 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $176.81 to $177.64, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 200 $175.94 $35,188.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 23

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,500

F19 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $175.73 to $176.14, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 600 $174.70 $104,820.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 22

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,700

F18 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $174.25 to $175.21, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 11,761 $173.65 $2,042,297.65
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 21

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,300

F17 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $173.20 to $174.19, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 839 $172.78 $144,962.42
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 20

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,061

F16 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $172.18 to $173.10, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 300 $171.45 $51,435.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 19

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,900

F15 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $170.99 to $171.92, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 100 $169.76 $16,976.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 18

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,200

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 700 $169.07 $118,349.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 17

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,300

F14 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $168.62 to $169.58, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 400 $167.76 $67,104.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 16

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,000

F13 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $167.36 to $167.97, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 400 $166.62 $66,648.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 15

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,400

F12 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.22 to $167.05, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 300 $165.09 $49,527.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 14

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,800

F11 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $164.94 to $165.40, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 400 $163.90 $65,560.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 13

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,100

F10 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $163.44 to $164.28, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 300 $162.75 $48,825.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 12

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,500

F9 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.44 to $162.95, 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.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 200 $161.46 $32,292.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 11

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,800

F8 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $161.30 to $161.61, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 100 $187.90 $18,790.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 10

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,752 $186.85 $327,361.20
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 9

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,100

F7 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $186.68 to $186.94, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,618 $186.23 $301,320.14
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 8

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,852

F6 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $185.68 to $186.66, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 7,282 $185.19 $1,348,553.58
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 7

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,470

F5 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $184.67 to $185.56, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,074 $184.30 $197,938.20
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 6

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,752

F4 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $183.66 to $184.61, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 138 $182.50 $25,185.00
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 5

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,826

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 330 $181.17 $59,786.10
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 4

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,964

F3 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $181.02 to $181.26, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 606 $180.19 $109,195.14
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 3

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,294

F2 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $179.81 to $180.58, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 230 $178.92 $41,151.60
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 2

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,900

F1 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $178.69 to $179.10, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:53 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 184 $175.61 $32,312.24
Disclosure

SEC source: 0001628280-26-046042 · wk-form4_1782766424.xml · nonDerivative · entry 1

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,130

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 ConversionClass B Common Stock · Derivative 69,445 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · derivative · entry 31

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 689,696

Underlying: Class A Common Stock · 69,445 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F27 · balance_after: The amount in Column 9 has been amended to deduct 42,857 shares in order to correct the Class B Common Stock held.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 138 $173.71 $23,971.98
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 30

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,314

F26 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $173.69 to $173.73, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 338 $172.85 $58,423.30
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 29

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,452

F25 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $172.61 to $173.38, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 2,560 $172.02 $440,371.20
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 28

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,790

F24 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.59 to $172.58, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 4,192 $171.10 $717,251.20
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 27

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,350

F23 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $170.58 to $171.56, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 484 $170.17 $82,362.28
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 26

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,542

F22 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $169.56 to $170.49, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 2,200 $168.83 $371,426.00
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 25

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,026

F21 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $168.43 to $169.31, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 4,106 $167.78 $688,904.68
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 24

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,226

F20 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $167.39 to $168.30, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 7,399 $166.82 $1,234,301.18
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 23

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,332

F19 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.39 to $167.38, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 2,198 $166.05 $364,977.90
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 22

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,731

F18 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $165.39 to $166.37, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,051 $164.81 $173,215.31
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 21

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,929

F5 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $164.28 to $165.14, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 690 $163.62 $112,897.80
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 20

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,980

F4 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $163.17 to $163.85, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 276 $162.24 $44,778.24
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 19

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,670

F3 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.24 to $162.96, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 648 $185.21 $120,016.08
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 18

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,946

F2 · shares: 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.

F17 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $184.67 to $185.56, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 1,026 $184.25 $189,040.50
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 17

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,594

F2 · shares: 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.

F16 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $183.66 to $184.61, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 162 $182.50 $29,565.00
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 16

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,620

F2 · shares: 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 270 $181.23 $48,932.10
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 15

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,782

F2 · shares: 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.

F15 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $181.18 to $181.26, 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.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 20:51 UTC Cerebras Systems Inc. CBRS · Entity 3072 SaleClass A Common Stock 594 $180.18 $107,026.92
Disclosure

SEC source: 0001628280-26-046040 · wk-form4_1782766285.xml · nonDerivative · entry 14

Mallick Dhiraj · CIK 0002039572 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,052

F2 · shares: 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.

F14 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $179.81 to $180.58, 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.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.