Cerebras Systems CFO Sells Entire Common Stock Holding for $6.6M

Executive Summary

On September 29, 2026, Robert Patrick Komin Jr., Chief Financial Officer of Cerebras Systems Inc. (NASDAQ: CBRS), executed multiple open-market sales of Class A Common Stock totaling 32,500 shares. The aggregate gross proceeds reached approximately $6.61 million at a volume-weighted average price of $203.53 per share.

Transaction Breakdown

• Security: Class A Common Stock
• Transaction Code: S (Open-market sale)
• Shares Sold: 32,500 across 16 tranches ranging from $194.92 to $211.79
• Post-Transaction Holdings: 0 direct shares
• Trading Plan: Executed pursuant to a pre-arranged Rule 10b5-1 plan adopted on June 30, 2026

Significance & Market Context

This transaction represents a full disposition of the CFO's directly reported Class A Common Stock holdings, liquidating his 32,500-share position to zero. While the sale was executed under a Rule 10b5-1 plan established three months prior, complete liquidations of direct equity holdings by a key C-suite officer typically attract elevated scrutiny from institutional investors and market participants.