Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| No transactions found | ||||||||||
Bihua Chen currently holds 31,675 shares of PROTEOSTASIS THERAPEUTICS, INC. (PTI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Bihua Chen has been a net buyer of PTI stock. They have purchased $282.4M and sold $4.1M worth of shares.
Bihua Chen's most recent insider trade was on Jun 16, 2026, when they sold 31,675 shares at $0.00 per share.
Bihua Chen serves as Executive at PROTEOSTASIS THERAPEUTICS, INC. (PTI). They have executed 101 insider transactions totaling $286.5M over their tenure at the company.
Bihua Chen holds the position of Executive at PROTEOSTASIS THERAPEUTICS, INC., where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 10 years and currently hold a stake valued at $0.
Bihua Chen has shown a buying trading pattern, with $282.4M in total purchases and $4.1M in total sales across all transactions. Their most recent activity indicates a tendency to accumulate shares.
The largest transaction by Bihua Chen was on Aug 11, 2025, when they purchased $60.0M worth of BBOT shares. This transaction involved 5,598,425 shares at $10.72 per share.
Bihua Chen currently owns 31,675 shares of PROTEOSTASIS THERAPEUTICS, INC. (PTI), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Bihua Chen's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Bihua Chen has 101 Form 4 filings on record as an insider at PROTEOSTASIS THERAPEUTICS, INC..
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