Du Ying

Insider

Chairperson & CEO

Trades at: ZLAB

30D 90D 1Y

Net shares · 365d

-643.3K

0 buy · 643.3K sell

Net value · 365d

-$16.2M

$0 in · $16.2M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 643.3K 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.

Transactions · 365d

Open-market Buys Sells All types

ZLAB Other·G
May 27, 26

Chairperson & CEO

$0

107.7K sh · 3 lots

Own -9%
ZLAB Exercise·M
May 19, 26

Chairperson & CEO · 10b5-1

$0

261.1K sh

Own New
ZLAB Other·F
May 19, 26

Chairperson & CEO · 10b5-1

$2.2M

117.4K sh · $18.75

Own -8%
ZLAB Exercise·M
May 19, 26

Chairperson & CEO · 10b5-1

$454.3K

261.1K sh · $1.74

Own +23%
ZLAB Exercise·M
May 18, 26

Chairperson & CEO · 10b5-1

$0

100.0K sh · 2 lots

Own +62%
ZLAB Sell·S
May 18, 26

Chairperson & CEO · 10b5-1

$2.0M

100.0K sh · $19.87 avg · 2 lots

Own -8%
ZLAB Exercise·M
May 18, 26

Chairperson & CEO · 10b5-1

$174.0K

100.0K sh · $1.74 avg · 2 lots

Own +9%
ZLAB Exercise·M
May 14, 26

Chairperson & CEO · 10b5-1

$0

100.0K sh · 2 lots

Own +38%
ZLAB Sell·S
May 14, 26

Chairperson & CEO · 10b5-1

$2.0M

100.0K sh · $20.03 avg · 3 lots

Own -8%
ZLAB Exercise·M
May 14, 26

Chairperson & CEO · 10b5-1

$174.0K

100.0K sh · $1.74 avg · 2 lots

Own +9%
ZLAB Sell·S
Apr 6, 26

Chairperson & CEO

$54.2K

2.7K sh · $20.45

Own -0%
ZLAB Exercise·M
Apr 2, 26

Chairperson & CEO

$0

20.9K sh · 3 lots

Own New
ZLAB Sell·S
Apr 2, 26

Chairperson & CEO

$113.7K

5.6K sh · $20.39

Own -0%
ZLAB Exercise·M
Apr 2, 26

Chairperson & CEO

—

20.9K sh · 3 lots

Own +2%
ZLAB Sell·S
Mar 11, 26

Chairperson & CEO · 10b5-1

$20.4K

1.1K sh · $19.08

Own -0%
ZLAB Grant·A
Mar 11, 26

Chairperson & CEO

$0

385.8K sh · 2 lots

Own New
ZLAB Exercise·M
Mar 10, 26

Chairperson & CEO · 10b5-1

$0

263.7K sh · 2 lots

Own +134%
ZLAB Exercise·M
Mar 10, 26

Chairperson & CEO · 10b5-1

$454.3K

263.7K sh · $1.72 avg · 2 lots

Own +27%
ZLAB Other·F
Mar 10, 26

Chairperson & CEO · 10b5-1

$2.3M

116.9K sh · $19.41

Own -10%
ZLAB Exercise·M
Mar 9, 26

Chairperson & CEO · 10b5-1

$0

100.0K sh · 2 lots

Own +16%
ZLAB Sell·S
Mar 9, 26

Chairperson & CEO · 10b5-1

$1.9M

100.0K sh · $19.23 avg · 2 lots

Own -9%
ZLAB Exercise·M
Mar 9, 26

Chairperson & CEO · 10b5-1

$174.0K

100.0K sh · $1.74 avg · 2 lots

Own +11%
ZLAB Exercise·M
Mar 5, 26

Chairperson & CEO · 10b5-1

$0

100.0K sh · 2 lots

Own +14%
ZLAB Exercise·M
Mar 5, 26

Chairperson & CEO · 10b5-1

$174.0K

100.0K sh · $1.74 avg · 2 lots

Own +11%
ZLAB Sell·S
Mar 5, 26

Chairperson & CEO · 10b5-1

$1.9M

100.0K sh · $19.19 avg · 3 lots

Own -9%
ZLAB Grant·A
Mar 4, 26

Chairperson & CEO

$0

25.6K sh

Own New
ZLAB Other·G
Dec 11, 25

Chairperson & CEO

$0

680.9K sh · 2 lots

Own -41%
ZLAB Exercise·M
Aug 29, 25

Chairperson & CEO

$0

604.4K sh

Own New
ZLAB Other·F
Aug 29, 25

Chairperson & CEO

$8.2M

251.3K sh · $32.59

Own -22%
ZLAB Exercise·M
Aug 29, 25

Chairperson & CEO

$725.3K

604.4K sh · $1.20

Own +113%
ZLAB Exercise·M
Aug 13, 25

Chairperson & CEO · 10b5-1

$0

96.4K sh · 2 lots

Own New
ZLAB Exercise·M
Aug 13, 25

Chairperson & CEO · 10b5-1

$57.8K

96.4K sh · $0.60 avg · 2 lots

Own +20%
ZLAB Sell·S
Aug 13, 25

Chairperson & CEO · 10b5-1

$3.4M

96.4K sh · $34.84 avg · 2 lots

Own -15%
ZLAB Exercise·M
Aug 11, 25

Chairperson & CEO · 10b5-1

$0

100.0K sh · 2 lots

Own New
ZLAB Exercise·M
Aug 11, 25

Chairperson & CEO · 10b5-1

$60.0K

100.0K sh · $0.60 avg · 2 lots

Own +21%
ZLAB Sell·S
Aug 11, 25

Chairperson & CEO · 10b5-1

$3.5M

100.0K sh · $34.69 avg · 2 lots

Own -16%
ZLAB Sell·S
Jul 2, 25

Chairperson & CEO

$249.1K

7.1K sh · $35.23

Own -1%
ZLAB Grant·A
Jul 2, 25

Chairperson & CEO

$0

44.2K sh

Own New
ZLAB Exercise·M
Jul 1, 25

Chairperson & CEO

$0

18.0K sh

Own +50%
ZLAB Exercise·M
Jul 1, 25

Chairperson & CEO

—

18.0K sh

Own +3%
ZLAB Sell·S
Jun 30, 25

Chairperson & CEO

$245.7K

6.9K sh · $35.52

Own -1%
ZLAB Exercise·M
Jun 27, 25

Chairperson & CEO

$0

18.0K sh

Own +100%
ZLAB Exercise·M
Jun 27, 25

Chairperson & CEO

—

18.0K sh

Own +3%
ZLAB Sell·S
Jun 26, 25

Chairperson & CEO

$855.2K

23.7K sh · $36.13

Own -4%
ZLAB Exercise·M
Jun 25, 25

Chairperson & CEO

$0

58.8K sh

Own New
ZLAB Exercise·M
Jun 25, 25

Chairperson & CEO

—

58.8K sh

Own +12%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 27, 2026	ZLAB	Chairperson & CEO	Other G	107.7K3 lots	-9%	—	$0
May 19, 2026	ZLAB	Chairperson & CEO	Exercise M	261.1K	New	—	$0
May 19, 2026	ZLAB	Chairperson & CEO	Other F	117.4K	-8%	$18.75	$2.2M
May 19, 2026	ZLAB	Chairperson & CEO	Exercise M	261.1K	+23%	$1.74	$454.3K
May 18, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+62%	—	$0
May 18, 2026	ZLAB	Chairperson & CEO	Sell S	100.0K2 lots	-8%	$19.87 avg	$2.0M
May 18, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+9%	$1.74 avg	$174.0K
May 14, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+38%	—	$0
May 14, 2026	ZLAB	Chairperson & CEO	Sell S	100.0K3 lots	-8%	$20.03 avg	$2.0M
May 14, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+9%	$1.74 avg	$174.0K
Apr 6, 2026	ZLAB	Chairperson & CEO	Sell S	2.7K	-0%	$20.45	$54.2K
Apr 2, 2026	ZLAB	Chairperson & CEO	Exercise M	20.9K3 lots	New	—	$0
Apr 2, 2026	ZLAB	Chairperson & CEO	Sell S	5.6K	-0%	$20.39	$113.7K
Apr 2, 2026	ZLAB	Chairperson & CEO	Exercise M	20.9K3 lots	+2%	—	—
Mar 11, 2026	ZLAB	Chairperson & CEO	Sell S	1.1K	-0%	$19.08	$20.4K
Mar 11, 2026	ZLAB	Chairperson & CEO	Grant A	385.8K2 lots	New	—	$0
Mar 10, 2026	ZLAB	Chairperson & CEO	Exercise M	263.7K2 lots	+134%	—	$0
Mar 10, 2026	ZLAB	Chairperson & CEO	Exercise M	263.7K2 lots	+27%	$1.72 avg	$454.3K
Mar 10, 2026	ZLAB	Chairperson & CEO	Other F	116.9K	-10%	$19.41	$2.3M
Mar 9, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+16%	—	$0
Mar 9, 2026	ZLAB	Chairperson & CEO	Sell S	100.0K2 lots	-9%	$19.23 avg	$1.9M
Mar 9, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+11%	$1.74 avg	$174.0K
Mar 5, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+14%	—	$0
Mar 5, 2026	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+11%	$1.74 avg	$174.0K
Mar 5, 2026	ZLAB	Chairperson & CEO	Sell S	100.0K3 lots	-9%	$19.19 avg	$1.9M
Mar 4, 2026	ZLAB	Chairperson & CEO	Grant A	25.6K	New	—	$0
Dec 11, 2025	ZLAB	Chairperson & CEO	Other G	680.9K2 lots	-41%	—	$0
Aug 29, 2025	ZLAB	Chairperson & CEO	Exercise M	604.4K	New	—	$0
Aug 29, 2025	ZLAB	Chairperson & CEO	Other F	251.3K	-22%	$32.59	$8.2M
Aug 29, 2025	ZLAB	Chairperson & CEO	Exercise M	604.4K	+113%	$1.20	$725.3K
Aug 13, 2025	ZLAB	Chairperson & CEO	Exercise M	96.4K2 lots	New	—	$0
Aug 13, 2025	ZLAB	Chairperson & CEO	Exercise M	96.4K2 lots	+20%	$0.60 avg	$57.8K
Aug 13, 2025	ZLAB	Chairperson & CEO	Sell S	96.4K2 lots	-15%	$34.84 avg	$3.4M
Aug 11, 2025	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	New	—	$0
Aug 11, 2025	ZLAB	Chairperson & CEO	Exercise M	100.0K2 lots	+21%	$0.60 avg	$60.0K
Aug 11, 2025	ZLAB	Chairperson & CEO	Sell S	100.0K2 lots	-16%	$34.69 avg	$3.5M
Jul 2, 2025	ZLAB	Chairperson & CEO	Sell S	7.1K	-1%	$35.23	$249.1K
Jul 2, 2025	ZLAB	Chairperson & CEO	Grant A	44.2K	New	—	$0
Jul 1, 2025	ZLAB	Chairperson & CEO	Exercise M	18.0K	+50%	—	$0
Jul 1, 2025	ZLAB	Chairperson & CEO	Exercise M	18.0K	+3%	—	—
Jun 30, 2025	ZLAB	Chairperson & CEO	Sell S	6.9K	-1%	$35.52	$245.7K
Jun 27, 2025	ZLAB	Chairperson & CEO	Exercise M	18.0K	+100%	—	$0
Jun 27, 2025	ZLAB	Chairperson & CEO	Exercise M	18.0K	+3%	—	—
Jun 26, 2025	ZLAB	Chairperson & CEO	Sell S	23.7K	-4%	$36.13	$855.2K
Jun 25, 2025	ZLAB	Chairperson & CEO	Exercise M	58.8K	New	—	$0
Jun 25, 2025	ZLAB	Chairperson & CEO	Exercise M	58.8K	+12%	—	—

Buy Sell Non-market (grant · exercise · gift)

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.