Transaction · 0001628280-26-058316
CBRSCerebras Systems Inc.
Komin Robert Patrick Jr.
Komin Robert Patrick Jr., CFO, reported a transaction classified as unknown at Cerebras Systems Inc. involving 32500.000000 shares. Reported holdings after the transaction were 821653.000000 shares. A 10b5-1 reference was not detected in the stored filing text.
unknownSEC transaction code CCFO
- Trade date
- Aug 18, 2026
- Filing date
- Aug 21, 2026
How reported position traded is calculated
Not calculated for derivative securities.
Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.
Filing warnings
Notes recorded with this filingmissing priceThe filing did not provide a usable price per share.
CBRS price since this filing
Daily closing prices, with the filing date and available return windowsCBRS · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -11.9%1w ago +19.7%1d ago +28.5%
Returns since7d -8.7%30d +1.1%90d180d1y
Transaction facts
Stored Form 4 columns with their raw values
- Type
- unknown Code C
- Identifier
- 0001628280-26-058316 Class B Common Stock
- Transaction date
- Aug 18, 2026 Filed Aug 21, 2026, 12:14 AM · 3d delay
- Shares
- 32,500 sh Price unknown
- Estimated value
- — Computed from shares × price
- Holdings after
- 821,653 sh Direct
Filing signal explanations
Badges describe filing facts only — not predictions.
Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Derivative Transaction Direct Ownership
Filing-only score
-18 points
Compact filing score computed from stored Form 4 facts. Version v1.
Mixed or weak signal
This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.
How this score is calculated
- direct_ownership+6 points
direct_or_indirect_ownership = D
Direct ownership reports the insider's personal stake. - derivative_transaction-16 points
is_derivative = true
Derivative exercise rows are less discretionary than open-market purchases. - missing_price-8 points
price_cents is null
Missing price reduces confidence in value-based signals.
Missing facts
Read the scoring methodology- price_cents
Signed filing-only points, not a probability or expected return. Version v1.
Reported relationships & other filings
Form 4 relationship flags and nearby filing context
Reported roles
Chief Financial Officer
Officer YesDirector No10% NoOther No
Footnotes & amended
- 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.
Related transactions
Same SEC filing0 other transactions
Recent company activity
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