Xu Diyong

SEC Form 4 insider trading activity

Xu Diyong has filed 1 SEC Form 4 filing (2 transaction rows) across 1 company, with disclosures dating back to 2026. 1 of those filings fall inside the rolling window. Most recent filing: Jun 2, 2026.

On the most recent filing, Xu Diyong is listed as Director, 10% Owner at Q32 Bio Inc. Inside the rolling window, Xu Diyong reported 1 open-market purchase totaling $15.0M in QTTB and no open-market sales.

Companies traded

Other insiders at QTTB

Insider Buying

$15.0M

reported purchases (SEC code P)

Insider Selling

$0

reported sales (SEC code S)

Companies

1

in the rolling window

Source
QTTB
Xu Diyong
Purchase$15.0MJun 2SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Xu Diyong made?

Xu Diyong has filed 1 SEC Form 4 filing (2 transaction rows) across 1 company since 2026.

Which companies does Xu Diyong trade?

Xu Diyong has filed SEC Form 4 disclosures for 1 company, including QTTB.

When was Xu Diyong's most recent SEC Form 4 filing?

Xu Diyong's most recent SEC Form 4 filing on Tracefour is dated Jun 2, 2026.

What is Xu Diyong's total buy and sell value in the current window?

Inside the rolling retention window, Xu Diyong bought $15.0M and sold $0 based on SEC Form 4 filings.

What was Xu Diyong's largest disclosed transaction?

The largest disclosed transaction in the current window is a purchase of 1,875,000 QTTB shares on 2026-05-28, worth $15.0M, per SEC Form 4 filings.