Lie Sean's Form 4 filing
Cerebras Systems Inc.CBRS · filed Oct 28, 2026
- Accession no.
- 0001628280-26-067978
- Filed
- Oct 28, 2026, 6:30 PM ET
- Trade date
- Oct 27, 2026
- Filing delay
- 1 day
- Rule 10b5-1 plan
- Checked
This filing lists 5 non-derivative transactions and 4 derivative transactions. Open-market sales total $6.95M. It was filed 1 day 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.
| Owner | Relationship to the company |
|---|---|
| Lie SeanCIK 0002132472 | Officer (Chief Technology Officer) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Oct 27, 2026 | Class A Common Stock | CConversionAcquired | +32,023 | –F1 | – | 341,592 | Direct | |
| Oct 27, 2026 | Class A Common Stock | GGiftDisposed | −18,000 | $0.00 | $0 | 323,592 | Direct | |
| Oct 27, 2026 | Class A Common Stock | SSaleDisposed | −14,500 | $116.82F4 | −$1,693,890 | 309,092 | Direct | |
| Oct 27, 2026 | Class A Common Stock | SSaleDisposed | −45,400 | $115.46F5 | −$5,241,884 | 263,692 | Direct | |
| Oct 27, 2026 | Class A Common Stock | SSaleDisposed | −100 | $113.92 | −$11,392 | 263,592 | 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.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Oct 27, 2026 | Class B Common Stock | MOption exerciseDisposed | −28,898 | $0.00 | $0 | 143,248 | Direct | |
| Oct 27, 2026 | Class B Common Stock | MOption exerciseDisposed | −3,125 | $0.00 | $0 | 29,295 | Direct | |
| Oct 27, 2026 | Class A Common Stock | MOption exerciseAcquired | +32,023 | $0.00F1 | $0 | 7,615,015 | Direct | |
| Oct 27, 2026 | Class A Common Stock | CConversionDisposed | −32,023 | $0.00 | $0 | 7,582,992 | 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.
- 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.
Referenced by the price of 1 transaction in Table I and 1 transaction in Table II.
- F4
The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $116.58 to $116.88, 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.
Referenced by the price of 1 transaction in Table I.
- F5
The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $115.46 to $116.19, 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.