SEC Form 4 reporting owner
Mallick Dhiraj
Mallick Dhiraj has filed 81 Form 4 transactions reported between May 13, 2026 and August 18, 2026, as Chief Operating Officer of Cerebras Systems Inc..
Name as filed: Mallick Dhiraj
Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$20.1M
71 lines
Companies
1
with Form 4 filings
Latest transaction
Aug 18, 2026
transaction date
Roles and reported holdings
Transaction history
All 81 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.
| Date | Company | Type | Shares | Price | Value | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,417 | $240.01 | $340K@ $240.01 | 120,000 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 17 | $238.78 | $4K@ $238.78 | 121,417 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 21 | $237.23 | $5K@ $237.23 | 121,434 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 371 | $236.43 | $88K@ $236.43 | 121,455 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 550 | $235.50 | $130K@ $235.50 | 121,826 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,078 | $234.47 | $253K@ $234.47 | 122,376 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 410 | $233.31 | $96K@ $233.31 | 123,454 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 506 | $232.62 | $118K@ $232.62 | 123,864 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 444 | $231.57 | $103K@ $231.57 | 124,370 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 86 | $230.67 | $20K@ $230.67 | 124,814 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 268 | $229.46 | $61K@ $229.46 | 124,900 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 173 | $228.53 | $40K@ $228.53 | 125,168 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 635 | $227.37 | $144K@ $227.37 | 125,341 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 837 | $226.46 | $190K@ $226.46 | 125,976 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 613 | $225.51 | $138K@ $225.51 | 126,813 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 369 | $224.52 | $83K@ $224.52 | 127,426 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 900 | $223.54 | $201K@ $223.54 | 127,795 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 2,925 | $222.42 | $651K@ $222.42 | 128,695 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 6,237 | $221.47 | $1.4M@ $221.47 | 131,620 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 6,810 | $220.43 | $1.5M@ $220.43 | 137,857 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 3,465 | $219.58 | $761K@ $219.58 | 144,667 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 3,055 | $218.54 | $668K@ $218.54 | 148,132 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 2,458 | $217.58 | $535K@ $217.58 | 151,187 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 3,305 | $216.40 | $715K@ $216.40 | 153,645 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,937 | $215.67 | $418K@ $215.67 | 156,950 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Open-market saleCode S · directAlso reported by Feldman Andrew D. | 2 | $214.85 | $430@ $214.85 | 158,887 | Form 4 |
| Aug 18, 2026 | CBRSChief Operating Officer | Conversion of derivativeCode C · direct | 158,889 | — | — | 158,889 | Form 4 |
| Jun 30, 2026 | CBRSChief Operating Officer | Conversion of derivativeCode C · direct | 10,000 | — | — | 10,000 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 800 | $181.62 | $145K@ $181.62 | 0 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,200 | $180.50 | $217K@ $180.50 | 800 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,100 | $179.67 | $198K@ $179.67 | 2,000 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 600 | $174.70 | $105K@ $174.70 | 3,700 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 11,761 | $173.65 | $2.0M@ $173.65 | 4,300 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 839 | $172.78 | $145K@ $172.78 | 16,061 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 100 | $169.76 | $17K@ $169.76 | 17,200 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 700 | $169.07 | $118K@ $169.07 | 17,300 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 400 | $163.90 | $66K@ $163.90 | 19,100 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 300 | $162.75 | $49K@ $162.75 | 19,500 | Form 4 |
| Jun 26, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 200 | $161.46 | $32K@ $161.46 | 19,800 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 338 | $172.85 | $58K@ $172.85 | 33,452 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 2,560 | $172.02 | $440K@ $172.02 | 33,790 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 4,192 | $171.10 | $717K@ $171.10 | 36,350 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 484 | $170.17 | $82K@ $170.17 | 40,542 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 2,200 | $168.83 | $371K@ $168.83 | 41,026 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 4,106 | $167.78 | $689K@ $167.78 | 43,226 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 7,399 | $166.82 | $1.2M@ $166.82 | 47,332 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 2,198 | $166.05 | $365K@ $166.05 | 54,731 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,051 | $164.81 | $173K@ $164.81 | 56,929 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 690 | $163.62 | $113K@ $163.62 | 57,980 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 276 | $162.24 | $45K@ $162.24 | 58,670 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 648 | $185.21 | $120K@ $185.21 | 58,946 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,026 | $184.25 | $189K@ $184.25 | 59,594 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 270 | $178.92 | $48K@ $178.92 | 61,646 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 216 | $175.61 | $38K@ $175.61 | 61,916 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 594 | $171.74 | $102K@ $171.74 | 62,456 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 162 | $170.41 | $28K@ $170.41 | 63,050 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 918 | $169.22 | $155K@ $169.22 | 63,212 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 885 | $168.25 | $149K@ $168.25 | 64,130 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,461 | $166.98 | $244K@ $166.98 | 65,015 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 837 | $166.04 | $139K@ $166.04 | 66,476 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 998 | $164.73 | $164K@ $164.73 | 67,313 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 810 | $163.62 | $133K@ $163.62 | 68,311 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 324 | $162.24 | $53K@ $162.24 | 69,121 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Conversion of derivativeCode C · direct | 69,445 | — | — | 69,445 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 100 | $187.90 | $19K@ $187.90 | 20,000 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,752 | $186.85 | $327K@ $186.85 | 20,100 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,618 | $186.23 | $301K@ $186.23 | 21,852 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 7,282 | $185.19 | $1.3M@ $185.19 | 23,470 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 1,074 | $184.30 | $198K@ $184.30 | 30,752 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 138 | $182.50 | $25K@ $182.50 | 31,826 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 330 | $181.17 | $60K@ $181.17 | 31,964 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 606 | $180.19 | $109K@ $180.19 | 32,294 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 230 | $178.92 | $41K@ $178.92 | 32,900 | Form 4 |
| Jun 25, 2026 | CBRSChief Operating Officer | Open-market saleCode S · direct | 184 | $175.61 | $32K@ $175.61 | 33,130 | Form 4 |
| May 15, 2026 | CBRSChief Operating Officer | Other acquisition or dispositionCode J · direct | 105,000 | — | — | 0 | Form 4 |
| May 15, 2026 | CBRSChief Operating Officer | Other acquisition or dispositionCode J · direct | 300,000 | — | — | 0 | Form 4 |
| May 15, 2026 | CBRSChief Operating Officer | Other acquisition or dispositionCode J · direct | 100,000 | — | — | 0 | Form 4 |
| May 15, 2026 | CBRSChief Operating Officer | Other acquisition or dispositionCode J · direct | 200,000 | — | — | 0 | Form 4 |
| May 15, 2026 | CBRSChief Operating Officer | Other acquisition or dispositionCode J · direct | 367,370 | — | — | 0 | Form 4 |
| May 15, 2026 | CBRSChief Operating Officer | Other acquisition or dispositionCode J · direct | 801,998 | — | — | 0 | Form 4 |
| May 13, 2026 | CBRSChief Operating Officer | Shares withheld for tax or exercise priceCode F · direct | 491,091 | $185.00 | $90.9M@ $185.00 | 801,998 | Form 4 |
How this page is built
Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.
Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.
This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.