Insiders who reported open-market trades in the last 12 months at the companies Sean Lie files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Dhiraj Mallick - $97.44M in CBRS purchases and sales in the last 12 months
Andrew D. Feldman - $64.25M in CBRS purchases and sales in the last 12 months
Steven Vassallo - $21.42M in CBRS purchases and sales in the last 12 months
Eric Vishria - $15.69M in CBRS purchases and sales in the last 12 months
Sean Lie is a corporate insider, tracked as Chief Technology Officer of Cerebras Systems Inc. (CBRS). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Sean Lie submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has Sean Lie been buying or selling stock?
Recorded transactions: 0 open-market purchases and 63 open-market sales ($193.79M) across all tracked filings.
Sean Lie is Chief Technology Officer of Cerebras Systems Inc. (CBRS). 6 SEC Form 4 filings on record, most recently on 28 September 2026. Most recent open-market trade: sold $450K of CBRS on 28 September 2026. Lifetime open-market sales: $193.79M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Sean Lie.
InsiderAlpha's records for Sean Lie go back to 2026: 6 primary Form 4 filings, an average of 6.0 per year. 15 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
