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Cerebras Systems Officer Sean Lie Files Form 144 to Sell $6.5M in Stock

Medium SignificanceOctober 27, 2026 at 5:09:27 PM EDT

Cerebras Systems Inc.

$CBRS144CIK: 0002021728

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Filing Summary

Form 144 Filing Alert: Cerebras Systems Inc. • Insider: Sean Lie (Officer) • Proposed Sale: 60,000 Common Shares • Aggregate Market Value: $6,502,200.00 (~$108.37/share) • Broker: Morgan Stanley Smith Barney LLC • Plan Date: May 20, 2026 (Rule 10b5-1 plan)

Comprehensive Analysis

Insider Filing Analysis: Form 144

Company: Cerebras Systems Inc.
Insider: Sean Lie
Title/Relationship: Officer
Filing Date: October 27, 2026

Transaction Overview

Officer Sean Lie submitted a Form 144 notice disclosing an intention to sell 60,000 shares of Cerebras Systems Inc. common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of approximately $6,502,200 (implying an estimated market price of ~$108.37 per share).

Acquisition Details of Shares to be Sold

  • 32,023 shares: Acquired on October 27, 2026, via the exercise of stock options for cash payment.
  • 27,977 shares: Acquired on April 7, 2016, through performance stock units.

Trading Plan & Recent Selling Activity

  • Rule 10b5-1 Plan: The proposed transaction is scheduled to execute pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on May 20, 2026.
  • Past 3 Months Activity: The filer and affiliated entities (including Grounded Love Fund) have actively liquidated shares under 10b5-1 plans over the preceding three months, including substantial sales across August and September 2026 totaling in excess of $200 million in gross proceeds.
Topics:#Cerebras#Form144#InsiderTrading#StockMarket#SEC

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