Xu Diyong — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Xu Diyong has filed 2 SEC Form 4 filings across 1 company in the last 90 days — buying. Lifetime open-market purchases: $15.00M.

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-06-02QTTBQ32 Bio Inc.P — Open-market purchase625.0K$8.00$5.00M
2026-06-02QTTBQ32 Bio Inc.P — Open-market purchase1.25M$8.00$10.00M

Companies — Last 90 Days

Frequently Asked Questions

Who is Xu Diyong?

Xu Diyong is a corporate insider — currently tracked as Insider of Q32 Bio Inc. (QTTB). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Xu Diyong submitted recently?

2 primary Form 4 filings in the last 90 days, covering 1 company.

Has Xu Diyong been buying or selling stock?

Recorded transactions: 2 open-market purchases ($15.00M) and 0 open-market sales () across all tracked filings.

Where can I see all of Xu Diyong's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

Open the live Xu Diyong profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.