Insiders who reported open-market trades in the last 12 months at the companies Jane Chung 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.
Connie Matsui - $40K in STRO purchases and sales in the last 12 months
Gregory K. Chow - $16K in STRO purchases and sales in the last 12 months
Hans-Peter Gerber - $14K in STRO purchases and sales in the last 12 months
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Jane Chung is a corporate insider, tracked as Chief Executive Officer of SUTRO BIOPHARMA, INC. (STRO). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Jane Chung last file a Form 4?
The most recent primary Form 4 on record is dated 6 March 2026, one of 6 filings going back to 2024.
Has Jane Chung been buying or selling stock?
Recorded transactions: 1 open-market purchase ($10K) and 0 open-market sales across all tracked filings.
Jane Chung is Chief Executive Officer of SUTRO BIOPHARMA, INC. (STRO). 6 SEC Form 4 filings on record going back to 2024, most recently on 6 March 2026. Most recent open-market trade: bought $10K of STRO on 16 October 2025. Lifetime open-market purchases: $10K.
Recent transactions
14
The latest 14 SEC Form 4 transactions reported by Jane Chung.
InsiderAlpha's records for Jane Chung go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $10K (1 buy totaling $10K). The largest single buy on record is $10K of STRO 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.
