Reporting owner · CIK 0002039572

Mallick Dhiraj

SEC Form 4 history across 1 companies, 51 transactions and 2 filings.

COOChief Operating OfficerCerebras Systems Inc.
Open-market transaction mix0% buys0 buys · 45 sales
Latest filingSep 30, 2026, 10:34 PM

Available history · Aug 18, 2026 – Sep 29, 2026

Filings2Form 4 records
Buying$00 purchases
Selling$89.4M45 sales
Net value−$89.4MBuys minus sells · disclosed values

Latest insider transactions

Form 4 filings from available history.
Mallick Dhiraj transactions · 20 per page
CompanyInsiderActivityDisclosed valueFiled (ET)
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$201kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$650kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$1.38MView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$1.50MView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$760kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$667kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$534kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$715kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$417kView disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOS · saleSEC filing ↗-$430View disclosure →
CBRSCerebras Systems Inc.
Mallick DhirajCOOC · unknownSEC filing ↗UnknownView disclosure →
Open a transaction for shares, transaction date, ownership and the original SEC filing.

Latest Form 4 facts

Quick context from source filings

Latest open-market transaction

sale at Cerebras Systems Inc. on Sep 29, 2026 valued at $13,415,655.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Latest sale

sale at Cerebras Systems Inc. on Sep 29, 2026 valued at $13,415,655.

Review SEC filing

Monthly open-market activity

Last 2 reported months · purchases and sales

View exact monthly values
MonthPurchasesSalesBuy valueSale valueNet value
Aug 2026026$0.00$8,642,077.14-$8,642,077.14
Sep 2026019$0.00$80,798,603.74-$80,798,603.74

Net value is disclosed purchases minus sales, not profit. A dash means the value is unavailable.

Ownership and transaction size

Ownership and ticket size

Average P/S size$2M
Median P/S size$667.6K
Direct51
Indirect0
Sep 29, 2026unknown

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern45Derivative Transactionfiling-context4Direct Ownershipfiling-context51Large Holdings Increaseholdings3Large Holdings Reductionholdings4Large Salesize21Repeat Sellerpattern4310b5-1 Detectedfiling-context23

Associated companies

Companies in the disclosed reporting history

Cerebras Systems Inc.CBRS · 51 transactions · latest Sep 30, 2026, 10:34 PM

Open-market buy performance

90-day forward return on this insider's open-market purchases

90d forward
No open-market purchases in available history

A 90-day purchase return requires an open-market buy. No eligible purchases are recorded in this history.

Disclosed ownership

How reported shareholdings evolved

Non-derivative shares held after reported transactions—not stock prices or a complete portfolio.

47 observations · Aug 18, 2026 – Sep 29, 2026. Window ends at the latest available report, not today.

Selected observation · Sep 29, 20260 shares reported
Inspect transaction
View exact observations and source transactions
Transaction dateShares held afterFiledSource
Aug 18, 2026158,889Aug 21, 2026View transaction
Aug 18, 2026158,887Aug 21, 2026View transaction
Aug 18, 2026156,950Aug 21, 2026View transaction
Aug 18, 2026153,645Aug 21, 2026View transaction
Aug 18, 2026151,187Aug 21, 2026View transaction
Aug 18, 2026148,132Aug 21, 2026View transaction
Aug 18, 2026144,667Aug 21, 2026View transaction
Aug 18, 2026137,857Aug 21, 2026View transaction
Aug 18, 2026131,620Aug 21, 2026View transaction
Aug 18, 2026128,695Aug 21, 2026View transaction
Aug 18, 2026127,795Aug 21, 2026View transaction
Aug 18, 2026127,426Aug 21, 2026View transaction
Aug 18, 2026126,813Aug 21, 2026View transaction
Aug 18, 2026125,976Aug 21, 2026View transaction
Aug 18, 2026125,341Aug 21, 2026View transaction
Aug 18, 2026125,168Aug 21, 2026View transaction
Aug 18, 2026124,900Aug 21, 2026View transaction
Aug 18, 2026124,814Aug 21, 2026View transaction
Aug 18, 2026124,370Aug 21, 2026View transaction
Aug 18, 2026123,864Aug 21, 2026View transaction
Aug 18, 2026123,454Aug 21, 2026View transaction
Aug 18, 2026122,376Aug 21, 2026View transaction
Aug 18, 2026121,826Aug 21, 2026View transaction
Aug 18, 2026121,455Aug 21, 2026View transaction
Aug 18, 2026121,434Aug 21, 2026View transaction
Aug 18, 2026121,417Aug 21, 2026View transaction
Aug 18, 2026120,000Aug 21, 2026View transaction
Sep 29, 2026396,000Sep 30, 2026View transaction
Sep 29, 2026395,402Sep 30, 2026View transaction
Sep 29, 2026377,128Sep 30, 2026View transaction
Sep 29, 2026335,737Sep 30, 2026View transaction
Sep 29, 2026289,310Sep 30, 2026View transaction
Sep 29, 2026248,032Sep 30, 2026View transaction
Sep 29, 2026227,318Sep 30, 2026View transaction
Sep 29, 2026217,666Sep 30, 2026View transaction
Sep 29, 2026208,619Sep 30, 2026View transaction
Sep 29, 2026199,890Sep 30, 2026View transaction
Sep 29, 2026172,398Sep 30, 2026View transaction
Sep 29, 2026162,716Sep 30, 2026View transaction
Sep 29, 2026157,079Sep 30, 2026View transaction
Sep 29, 2026134,164Sep 30, 2026View transaction
Sep 29, 2026116,316Sep 30, 2026View transaction
Sep 29, 202699,316Sep 30, 2026View transaction
Sep 29, 202694,146Sep 30, 2026View transaction
Sep 29, 202687,533Sep 30, 2026View transaction
Sep 29, 202668,830Sep 30, 2026View transaction
Sep 29, 20260Sep 30, 2026View transaction

Securities and direct/indirect ownership contexts are kept separate and never summed. Joint filings may associate the same disclosed row with multiple owners. Unknown values are omitted, not treated as zero. Lines connect observations for readability; they do not establish holdings between filings, cost basis, or current ownership. Amendments and stock splits require reviewing the source.

Mallick Dhiraj Insider Activity FAQ

SEC Form 4 context

Who is Mallick Dhiraj?

Mallick Dhiraj is a reporting owner in SEC Form 4 filings with reporting owner CIK 0002039572.

Which companies has Mallick Dhiraj reported transactions for?

Cerebras Systems Inc.

When was Mallick Dhiraj's latest insider buy?

No open-market insider purchase is available for this period.

When was Mallick Dhiraj's latest insider sale?

sale at Cerebras Systems Inc. on Sep 29, 2026 valued at $13,415,655.

Where can I see the original SEC filings?

Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.

Are performance metrics included?

The profile shows average and median 90-day stock returns after open-market purchases when price coverage is available. These are unadjusted stock returns, not realized trading gains. Win rates, benchmark-adjusted returns and conviction scores are not calculated.