Cerebras COO sells 38.9K shares in tax-cover trade
Cerebras Systems Inc. (CBRS) reported that Chief Operating Officer Dhiraj Mallick converted 158,889 shares of Class B Common Stock into an equal number of Class A Common Stock on August 18, 2026.
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Rhea-AI Filing Summary
Cerebras Systems Inc. (CBRS) reported that Chief Operating Officer Dhiraj Mallick converted 158,889 shares of Class B Common Stock into an equal number of Class A Common Stock on August 18, 2026. On the same date, he sold 38,889 Class A shares at prices between $214.85 and $240.01 per share, primarily in a "sell to cover" transaction for tax withholding related to restricted stock units. Following the conversion, he held 520,807 Class B shares directly.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Conversion | Class B Common Stock F1 | 158,889 | $0.00 | $0.00 |
| Conversion | Class A Common Stock F1 | 158,889 | -- | -- |
| Sale | Class A Common Stock F2 | 2 | $214.85 | $429.70 |
| Sale | Class A Common Stock F2, F3 | 1,937 | $215.67 | $418K |
| Sale | Class A Common Stock F2, F4 | 3,305 | $216.40 | $715K |
| Sale | Class A Common Stock F2, F5 | 2,458 | $217.58 | $535K |
| Sale | Class A Common Stock F2, F6 | 3,055 | $218.54 | $668K |
| Sale | Class A Common Stock F2, F7 | 3,465 | $219.58 | $761K |
| Sale | Class A Common Stock F2, F8 | 6,810 | $220.43 | $1.50M |
| Sale | Class A Common Stock F2, F9 | 6,237 | $221.47 | $1.38M |
| Sale | Class A Common Stock F2, F10 | 2,925 | $222.42 | $651K |
| Sale | Class A Common Stock F2, F11 | 900 | $223.54 | $201K |
| Sale | Class A Common Stock F2, F12 | 369 | $224.52 | $83K |
| Sale | Class A Common Stock F2, F13 | 613 | $225.51 | $138K |
| Sale | Class A Common Stock F2, F14 | 837 | $226.46 | $190K |
| Sale | Class A Common Stock F2, F15 | 635 | $227.37 | $144K |
| Sale | Class A Common Stock F2, F16 | 173 | $228.53 | $40K |
| Sale | Class A Common Stock F2, F17 | 268 | $229.46 | $61K |
| Sale | Class A Common Stock F2, F18 | 86 | $230.67 | $20K |
| Sale | Class A Common Stock F19 | 444 | $231.57 | $103K |
| Sale | Class A Common Stock F20 | 506 | $232.62 | $118K |
| Sale | Class A Common Stock F21 | 410 | $233.31 | $96K |
| Sale | Class A Common Stock F22 | 1,078 | $234.47 | $253K |
| Sale | Class A Common Stock F23 | 550 | $235.50 | $130K |
| Sale | Class A Common Stock F24 | 371 | $236.43 | $88K |
| Sale | Class A Common Stock | 21 | $237.23 | $5K |
| Sale | Class A Common Stock | 17 | $238.78 | $4K |
| Sale | Class A Common Stock F25 | 1,417 | $240.01 | $340K |
Footnotes (25)
- 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. 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.
- F3. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $215.01 to $215.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F4. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $216.00 to $216.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F5. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $217.00 to $217.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F6. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $218.00 to $218.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F7. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $219.00 to $219.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F8. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $220.00 to $220.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F9. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $221.00 to $221.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F10. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $222.00 to $222.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F11. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $223.00 to $223.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F12. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $224.12 to $224.92, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F13. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $225.01 to $225.98, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F14. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $226.01 to $226.97, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F15. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $227.01 to $227.96, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F16. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $228.01 to $228.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F17. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $229.00 to $229.88, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F18. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $230.11 to $230.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F19. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $231.12 to $231.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F20. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $232.05 to $232.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F21. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $233.00 to $233.92, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F22. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $234.04 to $234.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F23. The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $235.00 to $235.99, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
- F24. 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.
- F25. 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.
Key Figures
Key Terms
sell to cover financial
lock-up agreement regulatory
restricted stock units financial
weighted average sale price financial
Class B Common Stock financial
initial public offering financial
FAQ
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What insider activity did CBRS report for Dhiraj Mallick on August 18, 2026?
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