Mallick Dhiraj's Form 4 filing

Cerebras Systems Inc.CBRS · filed Jun 29, 2026

Accession no.: 0001628280-26-046040
Filed: Jun 29, 2026
Trade date: Jun 25, 2026
Filing delay: 4 days
Rule 10b5-1 plan: Not checked

Original on SEC EDGAR (opens in a new tab)

This filing lists 30 non-derivative transactions and 1 derivative transaction. Open-market sales total $6.12M. It was filed 4 days after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
Owner	Relationship to the company
Mallick DhirajCIK 0002039572	Officer (Chief Operating Officer)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade date	Security	Transaction	Shares	Price	Value	Shares after	Ownership
Jun 25, 2026	Class A Common Stock	CConversionAcquired	+69,445	–^F1	–	69,445	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−324	$162.24^F3	−$52,565.76	69,121	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−810	$163.62^F4	−$132,532.2	68,311	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−998	$164.73^F5	−$164,400.54	67,313	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−837	$166.04^F6	−$138,975.48	66,476	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−1,461	$166.98^F7	−$243,957.78	65,015	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−885	$168.25^F8	−$148,901.25	64,130	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−918	$169.22^F9	−$155,343.96	63,212	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−162	$170.41^F10	−$27,606.42	63,050	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−594	$171.74^F11	−$102,013.56	62,456	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−324	$173.45^F12	−$56,197.8	62,132	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−216	$175.61	−$37,931.76	61,916	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−270	$178.92^F13	−$48,308.4	61,646	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−594	$180.18^F14	−$107,026.92	61,052	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−270	$181.23^F15	−$48,932.1	60,782	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−162	$182.50	−$29,565	60,620	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−1,026	$184.25^F16	−$189,040.5	59,594	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−648	$185.21^F17	−$120,016.08	58,946	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−276	$162.24^F3	−$44,778.24	58,670	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−690	$163.62^F4	−$112,897.8	57,980	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−1,051	$164.81^F5	−$173,215.31	56,929	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−2,198	$166.05^F18	−$364,977.9	54,731	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−7,399	$166.82^F19	−$1,234,301.18	47,332	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−4,106	$167.78^F20	−$688,904.68	43,226	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−2,200	$168.83^F21	−$371,426	41,026	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−484	$170.17^F22	−$82,362.28	40,542	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−4,192	$171.10^F23	−$717,251.2	36,350	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−2,560	$172.02^F24	−$440,371.2	33,790	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−338	$172.85^F25	−$58,423.3	33,452	Direct
Jun 25, 2026	Class A Common Stock	SSaleDisposed	−138	$173.71^F26	−$23,971.98	33,314	Direct

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade date	Security	Transaction	Underlying shares	Unit price	Value	Held after	Ownership	Flags
Jun 25, 2026	Class A Common Stock	CConversionDisposed	−69,445	$0.00	$0	689,696	Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

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.

Referenced by the price of 1 transaction in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $162.24 to $162.96, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 2 transactions in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $163.17 to $163.85, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 2 transactions in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $164.28 to $165.14, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 2 transactions in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $165.48 to $166.42, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.55 to $167.51, 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.

Referenced by the price of 1 transaction in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $167.68 to $168.62, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $168.93 to $169.67, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F10

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $170.11 to $170.92, 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.

Referenced by the price of 1 transaction in Table I.

F11

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.50 to $172.04, 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.

Referenced by the price of 1 transaction in Table I.

F12

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $173.01 to $173.73, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F13

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $178.69 to $179.10, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F14

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $179.81 to $180.58, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F15

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $181.18 to $181.26, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F16

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $183.66 to $184.61, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F17

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $184.67 to $185.56, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F18

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $165.39 to $166.37, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F19

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $166.39 to $167.38, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F20

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $167.39 to $168.30, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F21

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $168.43 to $169.31, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F22

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $169.56 to $170.49, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F23

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $170.58 to $171.56, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F24

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $171.59 to $172.58, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F25

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $172.61 to $173.38, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

F26

The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $173.69 to $173.73, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

Remarks

This Form 4 is the first of two Forms 4 being filed by the Reporting Person relating to transactions that occurred on June 25, 2026 and June 26, 2026 (the "Transaction Dates"). Because there are more than 30 rows associated with the Reporting Person's transactions that occurred on the Transaction Dates, and EDGAR will not allow for the entry of more than 30 rows on a single Form 4, a second Form 4 is also filed to report the transactions that were not included on this first Form 4. The two Forms 4 filed by the Reporting Person on the date hereof should be read together as one consolidated filing.

Read the full filing on SEC EDGAR (opens in a new tab)