SEC Form 4 · accession 0001628280-26-060988
Cerebras Systems Inc. · CBRS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Sean Lie
Officer — Chief Technology Officer
Period of report
Sep 4, 2026
Accepted (ET)
Sep 8, 2026 · 8:19 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0002021728
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF1 | Sep 4, 2026 | C | 46,141 | — | A | 415,067 | D | |
| Class A Common Stock | Sep 4, 2026 | G | 16,038 | $0.00 | D | 399,029 | D | |
| Class A Common StockF4 | Sep 4, 2026 | S | 53,460 | $210.16 | D | 345,569 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock OptionF5 | $5.48 | Sep 4, 2026 | M | 46,141 | D | — | Feb 6, 2034 | Class B Common Stock | 46,141 | 289,021 | D |
| Class B Common StockF1 | — | Sep 4, 2026 | M | 46,141 | A | — | — | Class A Common Stock | 46,141 | 7,629,133 | D |
| Class B Common StockF1 | — | Sep 4, 2026 | C | 46,141 | D | — | — | Class A Common Stock | 46,141 | 7,582,992 | D |
| Class B Common StockF1 | — | holding | — | — | — | — | — | Class A Common Stock | 180,600 | 180,600 | I |
Explanation of responses
- F1The 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.
- F2The 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.
- F3The 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.
- F4The 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.
- F5The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024.