FilingsForm 4

Cerebras Systems · Form 4 · Chief operating officer · Sale

From the public record

Filed Aug 20, 2026

Value$8.64 million

Shares38,889

Average price$222.22

FiledAug 20

The record

Issuer: Cerebras Systems (CIK 2021728, filed as Cerebras Systems Inc.)
Form: 4
Accession: 0001628280-26-058313
Filed: Aug 20, 2026
Period of report: Aug 18, 2026
Reporting owner: Mallick Dhiraj (CIK 2039572)
Relationship: officer (Chief Operating Officer)
Rule 10b5-1 checkbox: Not ticked
Line 1: C (conversion of a derivative security) · 158,889 Class A Common Stock · Aug 18, 2026 · acquired, directly · 158,889 held after · footnote F1
Line 2: S (sale) · 2 Class A Common Stock at $214.85 · Aug 18, 2026 · disposed, directly · 158,887 held after · footnote F2
Line 3: S (sale) · 1,937 Class A Common Stock at $215.67 · Aug 18, 2026 · disposed, directly · 156,950 held after · footnotes F2 and F3
Line 4: S (sale) · 3,305 Class A Common Stock at $216.40 · Aug 18, 2026 · disposed, directly · 153,645 held after · footnotes F2 and F4
Line 5: S (sale) · 2,458 Class A Common Stock at $217.58 · Aug 18, 2026 · disposed, directly · 151,187 held after · footnotes F2 and F5
Line 6: S (sale) · 3,055 Class A Common Stock at $218.54 · Aug 18, 2026 · disposed, directly · 148,132 held after · footnotes F2 and F6
Line 7: S (sale) · 3,465 Class A Common Stock at $219.58 · Aug 18, 2026 · disposed, directly · 144,667 held after · footnotes F2 and F7
Line 8: S (sale) · 6,810 Class A Common Stock at $220.43 · Aug 18, 2026 · disposed, directly · 137,857 held after · footnotes F2 and F8
Line 9: S (sale) · 6,237 Class A Common Stock at $221.47 · Aug 18, 2026 · disposed, directly · 131,620 held after · footnotes F2 and F9
Line 10: S (sale) · 2,925 Class A Common Stock at $222.42 · Aug 18, 2026 · disposed, directly · 128,695 held after · footnotes F2 and F10
Line 11: S (sale) · 900 Class A Common Stock at $223.54 · Aug 18, 2026 · disposed, directly · 127,795 held after · footnotes F2 and F11
Line 12: S (sale) · 369 Class A Common Stock at $224.52 · Aug 18, 2026 · disposed, directly · 127,426 held after · footnotes F2 and F12
Line 13: S (sale) · 613 Class A Common Stock at $225.51 · Aug 18, 2026 · disposed, directly · 126,813 held after · footnotes F2 and F13
Line 14: S (sale) · 837 Class A Common Stock at $226.46 · Aug 18, 2026 · disposed, directly · 125,976 held after · footnotes F2 and F14
Line 15: S (sale) · 635 Class A Common Stock at $227.37 · Aug 18, 2026 · disposed, directly · 125,341 held after · footnotes F2 and F15
Line 16: S (sale) · 173 Class A Common Stock at $228.53 · Aug 18, 2026 · disposed, directly · 125,168 held after · footnotes F2 and F16
Line 17: S (sale) · 268 Class A Common Stock at $229.46 · Aug 18, 2026 · disposed, directly · 124,900 held after · footnotes F2 and F17
Line 18: S (sale) · 86 Class A Common Stock at $230.67 · Aug 18, 2026 · disposed, directly · 124,814 held after · footnotes F2 and F18
Line 19: S (sale) · 444 Class A Common Stock at $231.57 · Aug 18, 2026 · disposed, directly · 124,370 held after · footnote F19
Line 20: S (sale) · 506 Class A Common Stock at $232.62 · Aug 18, 2026 · disposed, directly · 123,864 held after · footnote F20
Line 21: S (sale) · 410 Class A Common Stock at $233.31 · Aug 18, 2026 · disposed, directly · 123,454 held after · footnote F21
Line 22: S (sale) · 1,078 Class A Common Stock at $234.47 · Aug 18, 2026 · disposed, directly · 122,376 held after · footnote F22
Line 23: S (sale) · 550 Class A Common Stock at $235.50 · Aug 18, 2026 · disposed, directly · 121,826 held after · footnote F23
Line 24: S (sale) · 371 Class A Common Stock at $236.43 · Aug 18, 2026 · disposed, directly · 121,455 held after · footnote F24
Line 25: S (sale) · 21 Class A Common Stock at $237.23 · Aug 18, 2026 · disposed, directly · 121,434 held after
Line 26: S (sale) · 17 Class A Common Stock at $238.78 · Aug 18, 2026 · disposed, directly · 121,417 held after
Line 27: S (sale) · 1,417 Class A Common Stock at $240.01 · Aug 18, 2026 · disposed, directly · 120,000 held after · footnote F25
Derivative line 1: C (conversion of a derivative security) · 158,889 Class B Common Stock at $0.00 · Aug 18, 2026 · disposed, directly · 520,807 held after · footnote F1
Footnote F1: The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date.
Footnote F2: These shares were sold by the Reporting Person to cover tax withholding obligations in connection with the settlement of restricted stock units, resulting in the automatic conversion of the shares into Class A Common Stock immediately prior to execution of the sale. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person. The Reporting Person is subject to a lock-up agreement that that was entered into with underwriters in connection with the Issuer's initial public offering and expires on the earlier of (i) 6:00 a.m. Eastern Time on the second trading day following the Issuer's release of earnings for the quarter ending September 30, 2026 or (ii) November 9, 2026. The sale of shares is a permissible exemption under the terms of the lock-up agreement.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.