Vassallo Steven's Form 4 filing
Cerebras Systems Inc. (CBRS) · filed Aug 18, 2026
- Accession no.
- 0001567929-26-000003
- Filed
- Aug 18, 2026, 6:38 PM ET
- Trade date
- Jun 24-Aug 14, 2026
- Filing delay
- 55 daysLate
- Rule 10b5-1 plan
- Not checked
This filing lists 19 non-derivative transactions and 6 derivative transactions. Open-market sales total $10.9M. It was filed 55 days after the trade, past the 2-business-day deadline.
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 |
|---|---|
| Vassallo StevenCIK 0001567929 | Director |
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 |
|---|---|---|---|---|---|---|---|---|
| Jun 24, 2026 | Class A Common Stock | CConversionAcquired | +1,391,131 | –F1 | – | 1,391,131 | Indirect | Duplicate filing |
| Jun 24, 2026 | Class A Common Stock | CConversionAcquired | +29,963 | –F1 | – | 29,963 | Indirect | Duplicate filing |
| Jun 24, 2026 | Class A Common Stock | CConversionAcquired | +109,141 | –F1 | – | 109,141 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | CConversionAcquired | +347,782 | –F1 | – | 1,738,913 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | CConversionAcquired | +7,490 | –F1 | – | 37,453 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | CConversionAcquired | +27,285 | –F1 | – | 136,426 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | JOtherDisposed | −1,738,913 | $0.00 | $0 | 0 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | JOtherDisposed | −37,453 | $0.00 | $0 | 0 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | JOtherDisposed | −136,426 | $0.00 | $0 | 0 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | JOtherAcquired | +449,885 | $0.00 | $0 | 449,885 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | JOtherDisposed | −449,885 | $0.00 | $0 | 0 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | JOtherAcquired | +1,368 | $0.00 | $0 | 1,368 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | JOtherAcquired | +99,599 | $0.00 | $0 | 99,599 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | JOtherAcquired | +50,944 | $0.00 | $0 | 50,944 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | SSaleDisposed | −6,081 | $216.38F17 | −$1,315,806.78 | 93,518 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | SSaleDisposed | −16,671 | $217.47F18 | −$3,625,442.37 | 76,847 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | SSaleDisposed | −11,834 | $218.46F19 | −$2,585,255.64 | 65,013 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | SSaleDisposed | −14,323 | $219.41F20 | −$3,142,609.43 | 50,690 | Indirect | |
| Aug 14, 2026 | Class A Common Stock | SSaleDisposed | −1,091 | $219.97F21 | −$239,987.27 | 49,599 | Indirect |
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 |
|---|---|---|---|---|---|---|---|---|
| Jun 24, 2026 | Class A Common Stock | CConversionDisposed | −1,391,131 | –F1 | – | 12,520,174 | Indirect | Duplicate filing |
| Jun 24, 2026 | Class A Common Stock | CConversionDisposed | −29,963 | –F1 | – | 269,664 | Indirect | Duplicate filing |
| Jun 24, 2026 | Class A Common Stock | CConversionDisposed | −109,141 | –F1 | – | 982,270 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | CConversionDisposed | −347,782 | –F1 | – | 12,172,392 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | CConversionDisposed | −7,490 | –F1 | – | 262,174 | Indirect | Duplicate filing |
| Aug 14, 2026 | Class A Common Stock | CConversionDisposed | −27,285 | –F1 | – | 954,985 | Indirect | Duplicate filing |
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
Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.
Referenced by the price of 6 transactions in Table I and 6 transactions in Table II.
- F17
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $215.79 to $216.78 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F18
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $216.87 to $217.86 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F19
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $217.90 to $218.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F20
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $218.90 to $219.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F21
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $219.90 to $220.15 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.