Insider trading

Period: 12 months Stock: ZLAB Plan: Scheduled (10b5-1) × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

20 decisions over 12 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

20 decisions over 12 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

20 decisions over 12 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

20 decisions over 12 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
20 decisions over 12 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
20 decisions over 12 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

20 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
19 Aug 2026
Chen Yajing Chief Financial Officer
Sold on a plan
$7.02K 260 at 27.00
0.7%
Planned (10b5-1)
12 Aug 2026
Lis William Director
Sold on a plan
$212.65K 8,506 at 25.00
16.9%
Planned (10b5-1)
11 Aug 2026
Chen Yajing Chief Financial Officer
Sold on a plan
$15.48K 619 at 25.00
1.7%
Planned (10b5-1)
1 Jul 2026
GAYNOR RICHARD Director
Bought on a plan
$33.07K 1,736 at 19.05
2.2%
Bought on a plan
22 Jun 2026
Lis William Director
Sold on a plan
$127.35K 7,040 at 18.09
12.2%
Planned (10b5-1)
18 May 2026
Du Ying Chairperson & CEO
Sold on a plan
$949.77K 50,000 at 19.00
4.3%
Planned (10b5-1)
15 May 2026
Du Ying Chairperson & CEO
Sold on a plan
$1.04M 50,000 at 20.74
4.3%
Planned (10b5-1)
14 May 2026
Du Ying Chairperson & CEO
Sold on a plan
$1.00M 50,000 at 20.09
4.3%
Planned (10b5-1)
14 May 2026
Edmondson Frazor Titus III Chief Legal Officer
Sold on a plan
$71.01K 3,517 at 20.19
15.1%
Planned (10b5-1)
13 May 2026
Du Ying Chairperson & CEO
Sold on a plan 2×
$998.47K 50,000 at 19.97
4.3%
Planned (10b5-1)
17 Mar 2026
GAYNOR RICHARD Director
Bought on a plan
$32.73K 1,731 at 18.91
3.2%
Bought on a plan
11 Mar 2026
Du Ying Chairperson & CEO
Sold on a plan
$20.36K 1,067 at 19.08
0.1%
Planned (10b5-1)
9 Mar 2026
Du Ying Chairperson & CEO
Sold on a plan
$951.47K 50,000 at 19.03
4.9%
Planned (10b5-1)
6 Mar 2026
Du Ying Chairperson & CEO
Sold on a plan
$970.94K 50,000 at 19.42
4.9%
Planned (10b5-1)
5 Mar 2026
Du Ying Chairperson & CEO
Sold on a plan
$961.06K 50,000 at 19.22
4.9%
Planned (10b5-1)
5 Mar 2026
Edmondson Frazor Titus III Chief Legal Officer
Sold on a plan
$296.75K 15,569 at 19.06
81.6%
Sold half or more
4 Mar 2026
Du Ying Chairperson & CEO
Sold on a plan 2×
$958.15K 50,000 at 19.16
4.9%
Planned (10b5-1)
3 Mar 2026
Amado Rafael See Remarks
Sold on a plan
$173.80K 10,000 at 17.38
19.1%
Planned (10b5-1)
16 Dec 2025
Edmondson Frazor Titus III Chief Legal Officer
Sold on a plan
$148.28K 8,651 at 17.14
31.2%
Planned (10b5-1)
21 Nov 2025
Edmondson Frazor Titus III Chief Legal Officer
Sold on a plan
$283.41K 14,328 at 19.78
34.1%
Planned (10b5-1)
Showing 1–20 of 20.