Du Ying

Insider

Chairperson & CEO

Trades at: ZLAB

30D 90D 1Y

Net shares · 90d

-208.2K

0 buy · 208.2K sell

Net value · 90d

-$4.2M

$0 in · $4.2M out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 208.2K sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

All transactions · open-market

Include grants & non-market

ZLAB Sell·S
May 18, 26

Chairperson & CEO · 10b5-1

$2.0M

100.0K sh · $19.87 avg · 2 lots

Own -8%
ZLAB Sell·S
May 14, 26

Chairperson & CEO · 10b5-1

$2.0M

100.0K sh · $20.03 avg · 3 lots

Own -8%
ZLAB Sell·S
Apr 6, 26

Chairperson & CEO

$54.2K

2.7K sh · $20.45

Own -0%
ZLAB Sell·S
Apr 2, 26

Chairperson & CEO

$113.7K

5.6K sh · $20.39

Own -0%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 18, 2026	ZLAB	Chairperson & CEO	Sell S	100.0K2 lots	-8%	$19.87 avg	$2.0M
May 14, 2026	ZLAB	Chairperson & CEO	Sell S	100.0K3 lots	-8%	$20.03 avg	$2.0M
Apr 6, 2026	ZLAB	Chairperson & CEO	Sell S	2.7K	-0%	$20.45	$54.2K
Apr 2, 2026	ZLAB	Chairperson & CEO	Sell S	5.6K	-0%	$20.39	$113.7K

About Du Ying

This profile aggregates every SEC Form 4 insider transaction reported by Du Ying across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.