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CIK 0002021728 · Non-accelerated filer<br>Emerging growth company

Cerebras Systems Inc.

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Ticker
CBRS
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
(650) 933-4890
Business address
1237 E. ARQUES AVE., SUNNYVALE, CA, 94085
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$394,624,413
in 16 filings, $135.4M under 10b5-1 plans

Net −$394,624,413. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Lie Sean −$199.0M Chief Technology Officer sold 79% of stake
  2. Mallick Dhiraj −$89.4M Chief Operating Officer sold 100% of stake
  3. Feldman Andrew D. −$61.1M CEO, President sold 95% of stake
  4. Vassallo Steven −$21.4M Director sold 37% of stake
  5. Vishria Eric −$15.7M Director sold 69% of stake
Date Insider Transaction Shares Price Value Owned after
2026-10-27 Lie Sean Chief Technology Officer Conversion 10b5-1 +32,023 341,592
2026-10-27 Lie Sean Chief Technology Officer Gift 10b5-1 −18,000 323,592
2026-10-27 Lie Sean Chief Technology Officer Sale 10b5-1 −14,500 $116.82 $1.7M 309,092
2026-10-27 Lie Sean Chief Technology Officer Sale 10b5-1 −45,400 $115.46 $5.2M 263,692
2026-10-27 Lie Sean Chief Technology Officer Sale 10b5-1 −100 $113.92 $11K 263,592
2026-10-27 Lie Sean Chief Technology Officer Option exercise · Stock Option 10b5-1 −28,898 143,248
2026-10-27 Lie Sean Chief Technology Officer Option exercise · Stock Option 10b5-1 −3,125 29,295
2026-10-27 Lie Sean Chief Technology Officer Option exercise · Class B Common Stock 10b5-1 +32,023 7,615,015
2026-10-27 Lie Sean Chief Technology Officer Conversion · Class B Common Stock 10b5-1 −32,023 7,582,992
2026-10-05 Vishria Eric Director Other acquisition 10b5-1 +59,126 334,980
2026-10-05 Feldman Andrew D. CEO, President Other acquisition +159 1,085
2026-09-30 Susan Lior Director Other disposition −1,198,489 5,292,222
2026-09-30 Susan Lior Director Other acquisition +68,428 420,355
2026-09-30 Susan Lior Director Other acquisition +63,056 372,659
2026-09-29 Komin Robert Patrick Jr. Chief Financial Officer Sale 10b5-1 −1,830 $211.79 $388K 30,670
2026-09-29 Komin Robert Patrick Jr. Chief Financial Officer Sale 10b5-1 −2,771 $211.03 $585K 27,899
2026-09-29 Komin Robert Patrick Jr. Chief Financial Officer Sale 10b5-1 −2,802 $210.02 $588K 25,097
2026-09-29 Komin Robert Patrick Jr. Chief Financial Officer Sale 10b5-1 −2,197 $208.98 $459K 22,900
2026-09-29 Komin Robert Patrick Jr. Chief Financial Officer Sale 10b5-1 −700 $207.83 $145K 22,200
2026-09-29 Komin Robert Patrick Jr. Chief Financial Officer Sale 10b5-1 −800 $206.68 $165K 21,400

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