Skip to content
Whale Atlas — Follow the signal.
Home
FULL RECORDS
Search insider filingsAll Congress filings
MORE TOOLS
WatchlistGold IntelligencePeopleCharts & technicalsCompany financialsOfficial newsMy saved workspace
YOUR RESEARCH
HomeSearch insider filingsAll Congress filings
More research tools
ExploreGold IntelligencePeopleInvestigate an ideaCharts & technicalsMore evidenceCompany financialsOfficial newsMy research & helpWatchlistMy saved workspaceLearn the basicsHow signals workData & coverage
RESOURCES
LearnMethodologyData sources
Built on public evidence.

Primary sources. Clear reasoning.
No black boxes.

Our approach
Public research workspacev1.0

Loading data…Scanning SEC filings…Checking Congress reports…Following the signal…

HomeSearchCongressWatchlist
© 2026 Whale AtlasFree public-filing research. Not financial advice. By using this site you agree to the Terms of Use.
FAQCompare trackersMethodologyData & correctionsTermsPrivacy
Back to Home
C

CBRS

Nasdaq

Cerebras Systems Inc.

Latest disclosureOctober 7, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 333 sales

Price by TradingViewDelayed quote from TradingView, for viewing only. It does not power Whale Atlas scores or alerts. If the quote does not load, open the TradingView link.

Insider transactions 630

Limited filing history
All630Buying0Selling333Other297
Filters

Last 30 daysNo qualifying insider buying. Sales: $142.39M by 6 insiders.

297 of 630 trades · May 13, 2026 – October 5, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 20 trades on this page.

Other activity disclosed

Eric Vishria

Director

Class A Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded October 5, 2026Filed October 7, 2026SEC filing
Other activity disclosed

Andrew D. Feldman

CEO, President

Class A Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded October 5, 2026Filed October 6, 2026SEC filing
Other activity disclosed

Lior Susan

Director

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 30, 2026Filed October 2, 2026SEC filing
Other activity disclosed

Lior Susan

Director

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 30, 2026Filed October 2, 2026SEC filing
Other activity disclosed

Lior Susan

Director

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 30, 2026Filed October 2, 2026SEC filing
Conversion disclosed

Dhiraj Mallick

Chief Operating Officer

Class A Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 29, 2026Filed September 30, 2026SEC filing
Exercise or conversion

Dhiraj Mallick

Chief Operating Officer

Stock Option

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$0.98 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 29, 2026Filed September 30, 2026SEC filing
Exercise or conversion

Dhiraj Mallick

Chief Operating Officer

Class B Common Stock

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 29, 2026Filed September 30, 2026SEC filing
Conversion disclosed

Dhiraj Mallick

Chief Operating Officer

Class B Common Stock

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 29, 2026Filed September 30, 2026SEC filing
Conversion disclosed

Sean Lie

Chief Technology Officer

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 25, 2026Filed September 28, 2026SEC filing
Gift disclosed

Sean Lie

Chief Technology Officer

Class A Common Stock

Value context
Not a purchase
Reported price
Gift · no purchase price
Understand this price

The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.

Traded September 25, 2026Filed September 28, 2026SEC filing
Exercise or conversion

Sean Lie

Chief Technology Officer

Stock Option

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$5.48 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 25, 2026Filed September 28, 2026SEC filing
Exercise or conversion

Sean Lie

Chief Technology Officer

Stock Option

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$5.02 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 25, 2026Filed September 28, 2026SEC filing
Exercise or conversion

Sean Lie

Chief Technology Officer

Class B Common Stock

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 25, 2026Filed September 28, 2026SEC filing
Conversion disclosed

Sean Lie

Chief Technology Officer

Class B Common Stock

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
Exercise / conversion price not reported
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 25, 2026Filed September 28, 2026SEC filing
Other activity disclosed

Lior Susan

Director

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 23, 2026Filed September 25, 2026SEC filing
Other activity disclosed

Lior Susan

Director

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 23, 2026Filed September 25, 2026SEC filing
Other activity disclosed

Lior Susan

Director

Class A Common Stock

Value context
Unavailable
Reported price
Price not reported
Traded September 23, 2026Filed September 25, 2026SEC filing
Other activity disclosed

Andrew D. Feldman

CEO, President

Class A Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 21, 2026Filed September 23, 2026SEC filing
Other activity disclosed

Eric Vishria

Director

Class A Common Stock

Value context
Not established
Reported price
$0 reported · see filing
Understand this price

The filing reports a zero transaction price. That is not a current market valuation; inspect the original filing for context.

Traded September 21, 2026Filed September 23, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
DirectorClass A Common StockOther transaction10b5-159,126$0 reported · see filingNot establishedOct 5Filed Oct 7 · 2d laterSEC filing
CEO, PresidentClass A Common StockOther transaction159$0 reported · see filingNot establishedOct 5Filed Oct 6 · 1d laterSEC filing
DirectorClass A Common StockOther transaction1,198,489Price not reportedUnavailableSep 30Filed Oct 2 · 2d laterSEC filing
DirectorClass A Common StockOther transaction68,428Price not reportedUnavailableSep 30Filed Oct 2 · 2d laterSEC filing
DirectorClass A Common StockOther transaction63,056Price not reportedUnavailableSep 30Filed Oct 2 · 2d laterSEC filing
Chief Operating OfficerClass A Common StockConversion10b5-1276,000$0 reported · see filingNot establishedSep 29Filed Sep 30 · 1d laterSEC filing
Chief Operating OfficerStock OptionOption exercise or conversion10b5-1Derivative units276,000$0.98 exercise / conversion priceNot a separate purchaseSep 29Filed Sep 30 · 1d laterSEC filing
Chief Operating OfficerClass B Common StockOption exercise or conversion10b5-1Derivative units276,000Exercise / conversion price not reportedNot a separate purchaseSep 29Filed Sep 30 · 1d laterSEC filing
Chief Operating OfficerClass B Common StockConversion10b5-1Derivative units276,000Exercise / conversion price not reportedNot a separate purchaseSep 29Filed Sep 30 · 1d laterSEC filing
Chief Technology OfficerClass A Common StockConversion10b5-1120,000Price not reportedUnavailableSep 25Filed Sep 28 · 3d laterSEC filing
Chief Technology OfficerClass A Common StockGift10b5-136,000Gift · no purchase priceNot a purchaseSep 25Filed Sep 28 · 3d laterSEC filing
Chief Technology OfficerStock OptionOption exercise or conversion10b5-1Derivative units116,875$5.48 exercise / conversion priceNot a separate purchaseSep 25Filed Sep 28 · 3d laterSEC filing
Chief Technology OfficerStock OptionOption exercise or conversion10b5-1Derivative units3,125$5.02 exercise / conversion priceNot a separate purchaseSep 25Filed Sep 28 · 3d laterSEC filing
Chief Technology OfficerClass B Common StockOption exercise or conversion10b5-1Derivative units120,000Exercise / conversion price not reportedNot a separate purchaseSep 25Filed Sep 28 · 3d laterSEC filing
Chief Technology OfficerClass B Common StockConversion10b5-1Derivative units120,000Exercise / conversion price not reportedNot a separate purchaseSep 25Filed Sep 28 · 3d laterSEC filing
DirectorClass A Common StockOther transaction451,118Price not reportedUnavailableSep 23Filed Sep 25 · 2d laterSEC filing
DirectorClass A Common StockOther transaction25,757Price not reportedUnavailableSep 23Filed Sep 25 · 2d laterSEC filing
DirectorClass A Common StockOther transaction23,735Price not reportedUnavailableSep 23Filed Sep 25 · 2d laterSEC filing
CEO, PresidentClass A Common StockOther transaction120$0 reported · see filingNot establishedSep 21Filed Sep 23 · 2d laterSEC filing
DirectorClass A Common StockOther transaction10b5-144,507$0 reported · see filingNot establishedSep 21Filed Sep 23 · 2d laterSEC filing

Showing the latest 20 of 297 trades. Show all 297 trades

Congress transactions 0

All Congress filings
No disclosed congressional trades for CBRS in the imported filings.

This reflects the filings imported so far, not a complete trading history.

Explore furtherTechnical lab Company financials Test a strategy Compare company

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0002021728
Latest public acceptance
Oct 7, 2026, 09:48 PM UTC
Score calculated
Oct 8, 2026, 12:10 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.