Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Cerebras Systems Inc.CBRS · Entity 3072 | Chief Technology Officer | September 25, 2026 | September 28, 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 25, 2026 · Filed September 28, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 309,569 |
Ending reported balance
After 2026-09-25 transaction · row 11
11 source rows · reconciled sequenceRow 1 · 2026-09-25 · Conversion · Acquired 120,000 · Balance 465,569 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 · 2026-09-25 · Gift · Disposed 36,000 · Balance 429,569 F2: The reporting person transferred 36,000 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code. Row 3 · 2026-09-25 · Sale · Disposed 500 · Balance 429,069 F3: 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. F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.97 to $212.31, 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. Row 4 · 2026-09-25 · Sale · Disposed 9,177 · Balance 419,892 F3: 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. F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.97 to $211.95, 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. Row 5 · 2026-09-25 · Sale · Disposed 30,565 · Balance 389,327 F3: 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. F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.97 to $210.96, 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 6 · 2026-09-25 · Sale · Disposed 29,991 · Balance 359,336 F3: 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. F7: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.97 to $209.96, 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 7 · 2026-09-25 · Sale · Disposed 21,022 · Balance 338,314 F3: 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. F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.97 to $208.95, 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. Row 8 · 2026-09-25 · Sale · Disposed 6,869 · Balance 331,445 F3: 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. F9: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.96 to $207.95, 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. Row 9 · 2026-09-25 · Sale · Disposed 13,776 · Balance 317,669 F3: 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. F10: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.96 to $206.95, 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. Row 10 · 2026-09-25 · Sale · Disposed 5,900 · Balance 311,769 F3: 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. F11: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.86 to $205.83, 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 · 2026-09-25 · Sale · Disposed 2,200 · Balance 309,569 F3: 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. F12: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $203.86 to $204.83, 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 $5.48 · Expires 2034-02-06 | Direct | 172,146 |
Reported balance
After 2026-09-25 transaction · row 13
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 13 · 2026-09-25 · Exercise / conversion · Disposed 116,875 · Balance 172,146 F13: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $5.02 · Expires 2033-02-13 | Direct | 32,420 |
Reported balance
After 2026-09-25 transaction · row 14
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 14 · 2026-09-25 · Exercise / conversion · Disposed 3,125 · Balance 32,420 F14: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2023. |
| Class B Common StockSEC Table II · derivative / convertible security | Direct | 7,702,992 |
Reported balance
After 2026-09-25 transaction · row 15
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 15 · 2026-09-25 · Exercise / conversion · Acquired 120,000 · Balance 7,702,992 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 security | Direct | 7,582,992 |
Reported balance
After 2026-09-25 transaction · row 16
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 16 · 2026-09-25 · Conversion · Disposed 120,000 · Balance 7,582,992 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 security | IndirectBy Spouse | 180,600 |
Reported balance
Holding disclosure · report date 2026-09-25 · row 12
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 12 · Balance 180,600 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 reporting person transferred 36,000 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code.
F3: 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.
F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.97 to $212.31, 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.
F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.97 to $211.95, 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.
F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.97 to $210.96, 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.
F7: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.97 to $209.96, 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.
F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.97 to $208.95, 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.
F9: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.96 to $207.95, 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.
F10: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.96 to $206.95, 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.
F11: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.86 to $205.83, 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 $203.86 to $204.83, 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 stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024.
F14: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2023.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 120,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · derivative · entry 16 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,582,992 Underlying: Class A Common Stock · 120,000 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionClass B Common Stock · Derivative | 120,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · derivative · entry 15 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,702,992 Underlying: Class A Common Stock · 120,000 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 · 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 3,125 | $0.00 Strike: $5.02 | $0.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · derivative · entry 14 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 32,420 Underlying: Class B Common Stock · 3,125 shares Expires 2033-02-13 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. F14 · derivative.exercise_date: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2023. Read SEC document |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 116,875 | $0.00 Strike: $5.48 | $0.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · derivative · entry 13 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 172,146 Underlying: Class B Common Stock · 116,875 shares Expires 2034-02-06 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. F13 · derivative.exercise_date: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024. Read SEC document |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 2,200 | $204.50 | $449,900.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 11 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 309,569 F3 · kind: 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. F12 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $203.86 to $204.83, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 5,900 | $205.30 | $1,211,270.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 10 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 311,769 F3 · kind: 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. F11 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.86 to $205.83, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 13,776 | $206.63 | $2,846,534.88 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 9 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 317,669 F3 · kind: 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. F10 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.96 to $206.95, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 6,869 | $207.54 | $1,425,592.26 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 8 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 331,445 F3 · kind: 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. F9 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.96 to $207.95, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 21,022 | $208.41 | $4,381,195.02 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 7 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 338,314 F3 · kind: 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. F8 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.97 to $208.95, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 29,991 | $209.53 | $6,284,014.23 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 6 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 359,336 F3 · kind: 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. F7 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.97 to $209.96, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 30,565 | $210.45 | $6,432,404.25 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 5 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 389,327 F3 · kind: 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. F6 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.97 to $210.96, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 9,177 | $211.32 | $1,939,283.64 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 4 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 419,892 F3 · kind: 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. F5 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.97 to $211.95, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 500 | $212.14 | $106,070.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 3 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 429,069 F3 · kind: 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. F4 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.97 to $212.31, 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 |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | GiftClass A Common Stock | 36,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 2 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 429,569 F2 · kind: The reporting person transferred 36,000 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code. Read SEC document |
| September 25, 2026 Filed Sep 28, 2026 20:05 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass A Common Stock | 120,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-26-063713 · wk-form4_1790625937.xml · nonDerivative · entry 1 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 465,569 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 |
| September 04, 2026 Filed Sep 9, 2026 00:19 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 46,141 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-060988 · wk-form4_1788913142.xml · derivative · entry 7 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,582,992 Underlying: Class A Common Stock · 46,141 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 |
| September 04, 2026 Filed Sep 9, 2026 00:19 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionClass B Common Stock · Derivative | 46,141 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-060988 · wk-form4_1788913142.xml · derivative · entry 6 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,629,133 Underlying: Class A Common Stock · 46,141 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 · 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 |
| September 04, 2026 Filed Sep 9, 2026 00:19 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 46,141 | $0.00 Strike: $5.48 | $0.00 |
DisclosureSEC source: 0001628280-26-060988 · wk-form4_1788913142.xml · derivative · entry 5 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 289,021 Underlying: Class B Common Stock · 46,141 shares Expires 2034-02-06 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. F5 · derivative.exercise_date: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024. Read SEC document |
| September 04, 2026 Filed Sep 9, 2026 00:19 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 53,460 | $210.16 | $11,235,153.60 |
DisclosureSEC source: 0001628280-26-060988 · wk-form4_1788913142.xml · nonDerivative · entry 3 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 345,569 F3 · kind: 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. F4 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.00 to $210.45, 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 |
| September 04, 2026 Filed Sep 9, 2026 00:19 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | GiftClass A Common Stock | 16,038 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-060988 · wk-form4_1788913142.xml · nonDerivative · entry 2 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 399,029 F2 · kind: The reporting person transferred 16,038 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code. Read SEC document |
| September 04, 2026 Filed Sep 9, 2026 00:19 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass A Common Stock | 46,141 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-26-060988 · wk-form4_1788913142.xml · nonDerivative · entry 1 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 415,067 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 |
| August 21, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 16,293 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 25 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,582,992 Underlying: Class A Common Stock · 16,293 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 |
| August 21, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionClass B Common Stock · Derivative | 16,293 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 24 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,599,285 Underlying: Class A Common Stock · 16,293 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 |
| August 21, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 16,293 | $0.00 Strike: $5.48 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 23 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 335,162 Underlying: Class B Common Stock · 16,293 shares Expires 2034-02-06 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. F17 · derivative.exercise_date: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024. Read SEC document |
| August 21, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 16,293 | $210.01 | $3,421,692.93 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 14 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 368,926 F3 · kind: 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. F14 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.00 to $210.16, 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 |
| August 21, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass A Common Stock | 16,293 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 13 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 385,219 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. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 696,798 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 22 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,582,992 Underlying: Class A Common Stock · 696,798 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionClass B Common Stock · Derivative | 696,798 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 21 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,279,790 Underlying: Class A Common Stock · 696,798 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 · 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 48,545 | $0.00 Strike: $5.48 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 20 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 351,455 Underlying: Class B Common Stock · 48,545 shares Expires 2034-02-06 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. F17 · derivative.exercise_date: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 114,455 | $0.00 Strike: $5.02 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 19 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 35,545 Underlying: Class B Common Stock · 114,455 shares Expires 2033-02-13 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. F16 · derivative.exercise_date: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2023. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 87,326 | $0.00 Strike: $7.89 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 18 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,674 Underlying: Class B Common Stock · 87,326 shares Expires 2032-01-11 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. F15 · derivative.exercise_date: The stock option is fully vested and exercisable. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 138,236 | $0.00 Strike: $2.72 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 17 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 36,764 Underlying: Class B Common Stock · 138,236 shares Expires 2030-12-07 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. F15 · derivative.exercise_date: The stock option is fully vested and exercisable. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | Exercise / conversionStock Option · Derivative | 308,236 | $0.00 Strike: $2.40 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · derivative · entry 16 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 41,764 Underlying: Class B Common Stock · 308,236 shares Expires 2029-05-13 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. F15 · derivative.exercise_date: The stock option is fully vested and exercisable. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 24,652 | $212.64 | $5,242,001.28 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 12 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 368,926 F3 · kind: 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. F13 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $212.22 to $213.16, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 10,715 | $211.42 | $2,265,365.30 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 11 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 393,578 F3 · kind: 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. F12 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.21 to $212.12, 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. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 46,214 | $210.56 | $9,730,819.84 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 10 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 404,293 F3 · kind: 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. F11 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.18 to $211.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 114,976 | $209.86 | $24,128,863.36 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 9 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 450,507 F3 · kind: 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. F10 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.18 to $210.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 119,311 | $208.69 | $24,899,012.59 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 8 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 565,483 F3 · kind: 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. F9 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.18 to $209.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 108,507 | $207.68 | $22,534,733.76 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 7 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 684,794 F3 · kind: 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. F8 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.18 to $208.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 93,017 | $206.67 | $19,223,823.39 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 6 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 793,301 F3 · kind: 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. F7 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.18 to $207.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 133,383 | $205.67 | $27,432,881.61 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 5 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 886,318 F3 · kind: 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. F6 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.18 to $206.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 47,766 | $204.87 | $9,785,820.42 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 4 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,019,701 F3 · kind: 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. F5 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.18 to $205.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 11,706 | $203.78 | $2,385,448.68 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 3 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,067,467 F3 · kind: 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. F4 · price: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $203.18 to $204.17, 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 |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | GiftClass A Common Stock | 213,074 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 2 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,079,173 F2 · kind: The reporting person transferred 213,074 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code. Read SEC document |
| August 20, 2026 Filed Aug 22, 2026 00:58 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass A Common Stock | 696,798 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-26-058506 · wk-form4_1787360310.xml · nonDerivative · entry 1 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,292,247 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 |
| August 18, 2026 Filed Aug 21, 2026 00:04 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 616,706 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · derivative · entry 28 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,582,992 Underlying: Class A Common Stock · 616,706 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 · 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 |
| August 18, 2026 Filed Aug 21, 2026 00:04 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 771 | $240.01 | $185,047.71 |
DisclosureSEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 27 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 595,449 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. F25 · price: 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. Read SEC document |
| August 18, 2026 Filed Aug 21, 2026 00:04 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 9 | $238.78 | $2,149.02 |
DisclosureSEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 26 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 596,220 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 |
| August 18, 2026 Filed Aug 21, 2026 00:04 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 11 | $237.23 | $2,609.53 |
DisclosureSEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 25 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 596,229 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 |
| August 18, 2026 Filed Aug 21, 2026 00:04 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | SaleClass A Common Stock | 203 | $236.43 | $47,995.29 |
DisclosureSEC source: 0001628280-26-058312 · wk-form4_1787270672.xml · nonDerivative · entry 24 Lie Sean · CIK 0002132472 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 596,240 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. F24 · price: 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. 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.