Insiders who reported open-market trades in the last 12 months at the companies David I. Rainer 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.
David J. Volk - $44.96M in BCAL purchases and sales in the last 12 months
Richard Hernandez - $325K in BCAL purchases and sales in the last 12 months
Lester Machado - $159K in BCAL purchases and sales in the last 12 months
Jean Carandang - $143K in BCAL purchases and sales in the last 12 months
Frank L. Muller - $10K in BCAL purchases and sales in the last 12 months
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David I. Rainer is a corporate insider, tracked as Chairman and CEO, Director of California BanCorp \ CA (BCAL). InsiderAlpha holds 7 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 David I. Rainer submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has David I. Rainer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($1.43M) across all tracked filings.
David I. Rainer is Chairman and CEO, Director of California BanCorp \ CA (BCAL). 7 SEC Form 4 filings on record going back to 2024, most recently on 4 August 2026. Most recent open-market trade: sold $1.43M of BCAL on 8 May 2026. Lifetime open-market sales: $1.43M.
Recent transactions
11
The latest 11 SEC Form 4 transactions reported by David I. Rainer.
InsiderAlpha's records for David I. Rainer go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
