FilingsForm 4

Cerebras Systems CFO Komin Robert Patrick Jr. sold $6.61 million of shares on Sep 29, 2026

From the public record1 min read

Published Oct 27, 2026 · 21:52 UTCFiled Sep 30, 2026

Value$6.61 million

Shares32,500

Average price$203.53

FiledSep 30

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

Komin Robert Patrick Jr., Cerebras Systems' Chief Financial Officer, sold 32,500 shares on Sep 29, 2026 at an average $203.53, for $6.61 million, according to a Form 4 (the form an insider files when trading the company's shares). After the last sale line the form states 0 Class A shares held directly. A footnote says the sales were made under a Rule 10b5-1 trading plan (a pre-arranged plan for insider trades) adopted on June 30, 2026. The Form 4 was filed with the SEC on Sep 30, 2026.1 2 3 4 5 6 7 8 9 10

How each figure was checked10 facts

the reporting owner as filedKomin Robert Patrick Jr.Our database
the reporting owner's role at Cerebras Systemsofficer (Chief Financial Officer)Our database
the side of the tradesaleOur database
shares sold32,500Our database
date of the tradeSep 29, 2026Our database
average price per share$203.53Our database
value of the sale$6.61 millionOur database
the holding the form states after the last sale lineafter the last sale line the form states 0 shares of Class A Common Stock held directlyOur database
footnote on the trading plan the sales were made underJune 30, 2026Footnotes of the SEC EDGAR, Form 4 filed Sep 30, 2026 ↗
date the Form 4 was filedSep 30, 2026Our database

The record

Issuer: Cerebras Systems (CIK 2021728, filed as Cerebras Systems Inc.)
Form: 4
Accession: 0001628280-26-064044
Filed: Sep 30, 2026
Period of report: Sep 29, 2026
Reporting owner: Komin Robert Patrick Jr. (CIK 1648800)
Relationship: officer (Chief Financial Officer)
Rule 10b5-1 checkbox: Ticked
Line 1: S (sale) · 1,830 Class A Common Stock at $211.79 · Sep 29, 2026 · disposed, directly · 30,670 held after · footnotes F1 and F2
Line 2: S (sale) · 2,771 Class A Common Stock at $211.03 · Sep 29, 2026 · disposed, directly · 27,899 held after · footnotes F1 and F3
Line 3: S (sale) · 2,802 Class A Common Stock at $210.02 · Sep 29, 2026 · disposed, directly · 25,097 held after · footnotes F1 and F4
Line 4: S (sale) · 2,197 Class A Common Stock at $208.98 · Sep 29, 2026 · disposed, directly · 22,900 held after · footnotes F1 and F5
Line 5: S (sale) · 700 Class A Common Stock at $207.83 · Sep 29, 2026 · disposed, directly · 22,200 held after · footnotes F1 and F6
Line 6: S (sale) · 800 Class A Common Stock at $206.68 · Sep 29, 2026 · disposed, directly · 21,400 held after · footnotes F1 and F7
Line 7: S (sale) · 600 Class A Common Stock at $205.47 · Sep 29, 2026 · disposed, directly · 20,800 held after · footnotes F1 and F8
Line 8: S (sale) · 1,600 Class A Common Stock at $204.26 · Sep 29, 2026 · disposed, directly · 19,200 held after · footnotes F1 and F9
Line 9: S (sale) · 800 Class A Common Stock at $203.48 · Sep 29, 2026 · disposed, directly · 18,400 held after · footnotes F1 and F10
Line 10: S (sale) · 400 Class A Common Stock at $201.96 · Sep 29, 2026 · disposed, directly · 18,000 held after · footnotes F1 and F11
Line 11: S (sale) · 11,200 Class A Common Stock at $201.22 · Sep 29, 2026 · disposed, directly · 6,800 held after · footnotes F1 and F12
Line 12: S (sale) · 1,130 Class A Common Stock at $199.80 · Sep 29, 2026 · disposed, directly · 5,670 held after · footnotes F1 and F13
Line 13: S (sale) · 870 Class A Common Stock at $198.70 · Sep 29, 2026 · disposed, directly · 4,800 held after · footnotes F1 and F14
Line 14: S (sale) · 685 Class A Common Stock at $197.48 · Sep 29, 2026 · disposed, directly · 4,115 held after · footnotes F1 and F15
Line 15: S (sale) · 1,115 Class A Common Stock at $195.61 · Sep 29, 2026 · disposed, directly · 3,000 held after · footnotes F1 and F16
Line 16: S (sale) · 3,000 Class A Common Stock at $194.92 · Sep 29, 2026 · disposed, directly · 0 held after · footnotes F1 and F17
Footnote F1: The sale reported on this Form 4 represents shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 30, 2026
Footnote F2: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.48 to $212.44, 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 F3: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.47 to $211.44, 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 $209.45 to $210.40, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
Footnote F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.40 to $209.38, 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.
Footnote F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.33 to $208.23, 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 $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.
Footnote F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.02 to $205.79, 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 $203.93 to $204.86, 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 $202.85 to $203.78, 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 $201.60 to $202.39, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
Footnote F12: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $200.30 to $201.28, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
Footnote F13: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $199.28 to $200.25, 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 $198.28 to $199.22, 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 $197.15 to $198.13, 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 $195.45 to $195.89, 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 $194.45 to $195.21, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.