Mallick Dhiraj sold $5.9M of CBRS

Mallick Dhiraj (Chief Operating Officer) sold 33,314 shares of Cerebras Systems Inc. (CBRS) at an average of $178.19 ($161.46–$187.90, $5.94M total) across 28 trades over 2026-06-25 to 2026-06-26.

Original reporting
SEC EDGAR · Mallick Dhiraj
Published Jun 29, 2026, 8:53 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 29, 2026, 9:00 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$CBRS
Neutral
medium confidence
Mentioned
$CBRS
Relevance
6/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$CBRSNeutralLow
01

Why it matters

The disclosed open-market sales total ~$5.94M and leave the insider with 0 direct shares; however, there is no accompanying operational or financial update.

02

Market read

Traders may monitor for follow-on selling/position changes, but the disclosure alone does not change Cerebras fundamentals.

03

What to watch

The filing lacks context on tax, option exercises, or prior grants; without those, interpreting intent is speculative.

Relevance 6/10Novelty 6/10Timing: filed after-hours (2026-06-29 16:53 ET) for trades dated 2026-06-25 to 2026-06-26

Background

The filing is an SEC Form 4 insider transaction by Cerebras Systems COO Mallick Dhiraj.

Company-level read

Ticker impact

$CBRSNeutralMedium confidence
Context

Cerebras COO Mallick Dhiraj sold $5.94M of CBRS shares in an open-market Form 4, exiting direct holdings to 0 shares.

Expected impact

Likely limited/short-lived impact; any reaction would be sentiment-driven rather than fundamental.

Evidence & confidence

The article is a primary Form 4 disclosure with transaction size and price range, but it does not cite performance, outlook, or operational developments.

Market effects

No direct sector read-across; this is company-specific insider transaction data.

None indicated.

None indicated.

Counterpoint

A full direct-share exit can reflect diversification or liquidity needs rather than bearish expectations, especially without a 10b5-1 plan.

Key entities

  • Cerebras Systems Inc.

    Subject of the Form 4 insider sale; ticker CBRS.

  • Mallick Dhiraj

    COO who sold 33,314 shares across 28 trades (weighted avg ~$178.19).

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

$CBRSMed

Why Cerebras Systems Stock Is Plummeting Today

Cerebras Systems (CBRS) shares fell 9.2% after UBS cut its price target by 24% to $250, citing tempered expectations. Despite the reduction, UBS maintains a buy rating, noting potential upside from OpenAI demand and AWS adoption. The stock has also faced criticism from Culper Research, which took a short position. Cerebras is set to report Q3 earnings on Nov. 12.

$CBRSMed

Why is Cerebras Systems stock sliding today?

Cerebras Systems (CBRS) stock fell 8.3% to a 52-week low of $98.50 after UBS cut its price target to $250 from $330, citing reduced near-term conviction. The decline follows a short-seller report alleging chip degradation and upcoming share unlocks. The stock is down 70% from its high, but analysts maintain Buy ratings.

$CBRSHigh

Cerebras Stock Falls as Short Seller Questions Chip Lifespan

Cerebras Systems (CBRS) fell 5.77% after short seller Culper Research alleged its AI chips have a lifespan of 1.5 to 2.5 years and questioned its technology claims. Cerebras has not responded. The drop follows a lockup expiration and reverses part of a previous rally. The stock is far below its 52-week high of $386.34.

$CBRSHigh

Cerebras Gains 10% on Oracle Cloud Deal as “AI Inference Demands Choice”

Cerebras Systems (CBRS) shares rose 10% and Oracle (ORCL) gained 4% on Oct. 27 after Oracle announced plans to offer Cerebras' AI inference on its cloud starting in 2027. The deal aims to provide customers with more AI chip options. Analysts estimate Cerebras' 2027 revenue at $2.95 billion, though no deal value was disclosed. Cerebras trades at roughly half its average forward price/sales multiple since its IPO.

$CBRSMed

Why Cerebras Systems Stock Jumped on Tuesday

Cerebras Systems (CBRS) stock rose 10.1% after announcing a partnership with Oracle (ORCL) to offer its AI chip technology to Oracle Cloud Infrastructure customers. The company's Wafer-Scale Engine (WSE) is promoted for its large size and reduced latency. Cerebras reported a 287% year-over-year increase in cloud revenue to $128 million in Q2, but continues to incur losses.