Insider trading

Period: 120 months Stock: ZLAB Plan: Not on a plan × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

117 decisions over 120 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.

117 decisions over 120 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.

117 decisions over 120 months
The trade

Minimum amount

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

117 decisions over 120 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.
117 decisions over 120 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
117 decisions over 120 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.

117 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
30 Jun 2026
Du Ying Chairperson & CEO
Sold at will
$130.22K 7,026 at 18.53
0.6%
Not planned
26 Jun 2026
Du Ying Chairperson & CEO
Sold at will
$428.55K 24,543 at 17.46
2.0%
Not planned
26 Jun 2026
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$71.64K 4,103 at 17.46
11.9%
Not planned
26 Jun 2026
Chen Yajing Chief Financial Officer
Sold at will
$39.53K 2,264 at 17.46
6.0%
Not planned
6 Apr 2026
Smiley Joshua L See Remarks
Sold at will
$61.69K 3,017 at 20.45
2.5%
Not planned
6 Apr 2026
Amado Rafael See Remarks
Sold at will
$56.01K 2,739 at 20.45
4.6%
Not planned
6 Apr 2026
Du Ying Chairperson & CEO
Sold at will
$54.25K 2,653 at 20.45
0.2%
Not planned
6 Apr 2026
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$25.03K 1,224 at 20.45
5.0%
Not planned
6 Apr 2026
Chen Yajing Chief Financial Officer
Sold at will
$17.44K 853 at 20.45
2.6%
Not planned
2 Apr 2026
Amado Rafael See Remarks
Sold at will
$202.06K 9,910 at 20.39
14.2%
Not planned
2 Apr 2026
Smiley Joshua L See Remarks
Sold at will
$196.03K 9,614 at 20.39
7.4%
Not planned
2 Apr 2026
Du Ying Chairperson & CEO
Sold at will
$113.69K 5,576 at 20.39
0.5%
Not planned
2 Apr 2026
Chen Yajing Chief Financial Officer
Sold at will
$106.01K 5,199 at 20.39
13.8%
Not planned
2 Apr 2026
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$85.52K 4,194 at 20.39
14.6%
Not planned
13 Mar 2026
Amado Rafael See Remarks
Sold at will
$55.08K 2,957 at 18.63
6.2%
Not planned
13 Mar 2026
Smiley Joshua L See Remarks
Sold at will
$36.62K 1,966 at 18.63
2.1%
Not planned
13 Mar 2026
Chen Yajing Chief Financial Officer
Sold at will
$31.72K 1,703 at 18.63
7.8%
Not planned
13 Mar 2026
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$23.86K 1,281 at 18.63
16.5%
Not planned
31 Dec 2025
Amado Rafael See Remarks
Sold at will
$188.04K 10,787 at 17.43
17.1%
Not planned
3 Nov 2025
Chen Yajing Chief Financial Officer
Sold at will
$6.44K 240 at 26.83
1.4%
Not planned
2 Oct 2025
Chen Yajing Chief Financial Officer
Sold at will
$15.62K 456 at 34.25
2.6%
Not planned
10 Sep 2025
Smiley Joshua L See Remarks
Bought
$289.10K 10,000 at 28.91
13.1%
Largest buy in 3 yrs
18 Aug 2025
Smiley Joshua L See Remarks
Sold at will
$240.64K 6,641 at 36.24
8.0%
Not planned
18 Aug 2025
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$68.23K 1,883 at 36.24
4.3%
Not planned
2 Jul 2025
Du Ying Chairperson & CEO
Sold at will
$249.15K 7,072 at 35.23
1.3%
Not planned
30 Jun 2025
Du Ying Chairperson & CEO
Sold at will
$245.73K 6,918 at 35.52
1.3%
Not planned
26 Jun 2025
Du Ying Chairperson & CEO
Sold at will
$855.21K 23,669 at 36.13
4.4%
Not planned
26 Jun 2025
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$212.35K 5,877 at 36.13
13.1%
Not planned
26 Jun 2025
Chen Yajing Chief Financial Officer
Sold at will
$96.65K 2,675 at 36.13
11.3%
Not planned
9 May 2025
Morrison Scott W Director
Sold at will
$715.09K 23,799 at 30.05
50.1%
Sold half or more
4 Apr 2025
Smiley Joshua L See Remarks
Sold at will
$111.04K 3,354 at 33.11
4.7%
Not planned
4 Apr 2025
Amado Rafael See Remarks
Sold at will
$100.28K 3,029 at 33.11
6.3%
Not planned
4 Apr 2025
Du Ying Chairperson & CEO
Sold at will
$97.50K 2,945 at 33.11
0.6%
Not planned
4 Apr 2025
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$62.04K 1,874 at 33.11
5.8%
Not planned
4 Apr 2025
Chen Yajing Chief Financial Officer
Sold at will
$30.59K 924 at 33.11
3.3%
Not planned
2 Apr 2025
Smiley Joshua L See Remarks
Sold at will
$421.40K 11,740 at 35.89
15.6%
Not planned
2 Apr 2025
Amado Rafael See Remarks
Sold at will
$270.68K 7,541 at 35.89
15.0%
Not planned
2 Apr 2025
Du Ying Chairperson & CEO
Sold at will
$208.47K 5,808 at 35.89
1.2%
Not planned
2 Apr 2025
Chen Yajing Chief Financial Officer
Sold at will
$189.52K 5,280 at 35.89
17.2%
Not planned
2 Apr 2025
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$156.82K 4,369 at 35.89
13.8%
Not planned
31 Dec 2024
Amado Rafael See Remarks
Sold at will
$199.29K 7,583 at 26.28
18.3%
Not planned
4 Nov 2024
Chen Yajing Chief Financial Officer
Sold at will
$5.12K 167 at 30.66
1.1%
Not planned
2 Oct 2024
Chen Yajing Chief Financial Officer
Sold at will
$7.64K 301 at 25.40
1.9%
Not planned
19 Aug 2024
Edmondson Frazor Titus III Chief Legal Officer
Sold at will
$32.62K 1,924 at 16.95
6.2%
Not planned
16 Aug 2024
Smiley Joshua L See Remarks
Sold at will
$72.56K 4,352 at 16.67
9.1%
Not planned
15 Aug 2024
Chen Yajing Chief Financial Officer
Sold at will
$6.78K 422 at 16.06
2.8%
Not planned
1 Jul 2024
Chen Kai-Xian Director
Sold at will
$133.46K 7,750 at 17.22
11.3%
Not planned
1 Jul 2024
Du Ying Chairperson & CEO
Sold at will
$122.57K 7,013 at 17.48
0.6%
Not planned
26 Jun 2024
Du Ying Chairperson & CEO
Sold at will
$428.53K 23,939 at 17.90
2.1%
Not planned
26 Jun 2024
Reinhart Harald See Remarks
Sold at will
$133.02K 7,431 at 17.90
10.6%
Not planned
Showing 1–50 of 117. Page 1 of 3 Older →