Insiders who reported open-market trades in the last 12 months at the companies Patrick Mercer 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.
Shih-Yao David Lin - $598K in IRIX purchases and sales in the last 12 months
Romeo R. Dizon - $98K in IRIX purchases and sales in the last 12 months
William M. Moore - $50K in IRIX purchases and sales in the last 12 months
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Patrick Mercer is a corporate insider, tracked as President and CEO, Director of IRIDEX CORP (IRIX). InsiderAlpha holds 11 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Patrick Mercer submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Patrick Mercer been buying or selling stock?
Recorded transactions: 3 open-market purchases ($10K) and 0 open-market sales across all tracked filings.
Patrick Mercer is President and CEO, Director of IRIDEX CORP (IRIX). 11 SEC Form 4 filings on record going back to 2024, most recently on 5 October 2026. Most recent open-market trade: bought $6K of IRIX on 28 April 2025. Lifetime open-market purchases: $10K.
Recent transactions
13
The latest 13 SEC Form 4 transactions reported by Patrick Mercer.
InsiderAlpha's records for Patrick Mercer go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. The typical open-market purchase is $3K (3 buys totaling $10K). The largest single buy on record is $6K of IRIX in 2025. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
