ZLABNasdaq

Zai Lab Ltd

Alert me on ZLAB

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Aug 22 Sale Chen Yajing Insider

1 week

−0.7%S&P +0.5%

1 month

+3.1%S&P +0.8%

3 months

Result in9 trading days

6 months

Result in72 trading days

Aug 14 Sale Lis William Insider

1 week

+0.4%S&P −1.4%

1 month

−4.2%S&P −2.4%

3 months

Result in3 trading days

6 months

Result in66 trading days

Aug 14 Sale Chen Yajing Insider

1 week

+0.4%S&P −1.4%

1 month

−4.2%S&P −2.4%

3 months

Result in3 trading days

6 months

Result in66 trading days

Jul 7 Buy GAYNOR RICHARD Insider

1 week

−0.3%S&P +0.6%

1 month

−5.1%S&P +3.0%

3 months

+32.4%S&P +3.9%

6 months

Result in38 trading days

Jul 2 Sale Du Ying Insider

1 week

+7.2%S&P +1.4%

1 month

−4.9%S&P +1.7%

3 months

+33.4%S&P +2.8%

6 months

Result in36 trading days

Show all 38

Jun 30 Sale Du Ying Insider

1 week

+3.9%S&P −0.2%

1 month

−4.2%S&P −0.7%

3 months

+36.5%S&P +2.6%

6 months

Result in34 trading days

Jun 30 Sale Edmondson Frazor Titus III Insider

1 week

+3.9%S&P −0.2%

1 month

−4.2%S&P −0.7%

3 months

+36.5%S&P +2.6%

6 months

Result in34 trading days

Jun 30 Sale Chen Yajing Insider

1 week

+3.9%S&P −0.2%

1 month

−4.2%S&P −0.7%

3 months

+36.5%S&P +2.6%

6 months

Result in34 trading days

Jun 25 Sale Lis William Insider

1 week

+3.2%S&P +1.4%

1 month

+0.6%S&P +0.7%

3 months

+36.5%S&P +4.7%

6 months

Result in31 trading days

May 20 Sale Du Ying Insider

1 week

−1.8%S&P +1.8%

1 month

−1.8%S&P +0.7%

3 months

+38.3%S&P +3.1%

6 months

Result in7 trading days

May 16 Sale Du Ying Insider

1 week

−2.2%S&P +1.6%

1 month

−5.2%S&P +0.3%

3 months

+35.6%S&P +4.2%

6 months

Result in5 trading days

May 16 Sale Edmondson Frazor Titus III Insider

1 week

−2.2%S&P +1.6%

1 month

−5.2%S&P +0.3%

3 months

+35.6%S&P +4.2%

6 months

Result in5 trading days

Apr 9 Sale Smiley Joshua L Insider

1 week

+13.3%S&P +3.2%

1 month

−10.3%S&P +8.5%

3 months

−1.2%S&P +11.3%

6 months

+19.6%S&P +14.4%

Apr 9 Sale Edmondson Frazor Titus III Insider

1 week

+13.3%S&P +3.2%

1 month

−10.3%S&P +8.5%

3 months

−1.2%S&P +11.3%

6 months

+19.6%S&P +14.4%

Apr 9 Sale Amado Rafael Insider

1 week

+13.3%S&P +3.2%

1 month

−10.3%S&P +8.5%

3 months

−1.2%S&P +11.3%

6 months

+19.6%S&P +14.4%

Apr 9 Sale Du Ying Insider

1 week

+13.3%S&P +3.2%

1 month

−10.3%S&P +8.5%

3 months

−1.2%S&P +11.3%

6 months

+19.6%S&P +14.4%

Apr 9 Sale Chen Yajing Insider

1 week

+13.3%S&P +3.2%

1 month

−10.3%S&P +8.5%

3 months

−1.2%S&P +11.3%

6 months

+19.6%S&P +14.4%

Apr 4 Sale Chen Yajing Insider

1 week

+4.1%S&P +4.1%

1 month

+2.3%S&P +9.8%

3 months

−5.6%S&P +13.8%

6 months

+25.0%S&P +18.2%

Apr 4 Sale Edmondson Frazor Titus III Insider

1 week

+4.1%S&P +4.1%

1 month

+2.3%S&P +9.8%

3 months

−5.6%S&P +13.8%

6 months

+25.0%S&P +18.2%

Apr 4 Sale Amado Rafael Insider

1 week

+4.1%S&P +4.1%

1 month

+2.3%S&P +9.8%

3 months

−5.6%S&P +13.8%

6 months

+25.0%S&P +18.2%

Apr 4 Sale Du Ying Insider

1 week

+4.1%S&P +4.1%

1 month

+2.3%S&P +9.8%

3 months

−5.6%S&P +13.8%

6 months

+25.0%S&P +18.2%

Apr 4 Sale Smiley Joshua L Insider

1 week

+4.1%S&P +4.1%

1 month

+2.3%S&P +9.8%

3 months

−5.6%S&P +13.8%

6 months

+25.0%S&P +18.2%

Mar 20 Buy GAYNOR RICHARD Insider

1 week

−0.5%S&P −2.2%

1 month

+35.1%S&P +8.6%

3 months

+2.2%S&P +15.1%

6 months

+46.1%S&P +19.9%

Mar 17 Sale Edmondson Frazor Titus III Insider

1 week

−8.1%S&P −2.4%

1 month

+23.6%S&P +4.9%

3 months

−6.8%S&P +12.2%

6 months

+29.7%S&P +13.0%

Mar 17 Sale Smiley Joshua L Insider

1 week

−8.1%S&P −2.4%

1 month

+23.6%S&P +4.9%

3 months

−6.8%S&P +12.2%

6 months

+29.7%S&P +13.0%

Mar 17 Sale Amado Rafael Insider

1 week

−8.1%S&P −2.4%

1 month

+23.6%S&P +4.9%

3 months

−6.8%S&P +12.2%

6 months

+29.7%S&P +13.0%

Mar 17 Sale Chen Yajing Insider

1 week

−8.1%S&P −2.4%

1 month

+23.6%S&P +4.9%

3 months

−6.8%S&P +12.2%

6 months

+29.7%S&P +13.0%

Mar 13 Sale Du Ying Insider

1 week

−1.5%S&P −1.8%

1 month

+19.5%S&P +5.1%

3 months

−7.1%S&P +12.3%

6 months

+33.8%S&P +15.5%

Mar 11 Sale Du Ying Insider

1 week

−1.3%S&P −2.2%

1 month

+8.4%S&P +0.7%

3 months

−9.5%S&P +7.6%

6 months

+26.7%S&P +12.6%

Mar 7 Sale Du Ying Insider

1 week

−0.3%S&P −1.4%

1 month

+11.9%S&P −0.1%

3 months

−13.8%S&P +9.3%

6 months

+32.9%S&P +13.5%

Mar 7 Sale Edmondson Frazor Titus III Insider

1 week

−0.3%S&P −1.4%

1 month

+11.9%S&P −0.1%

3 months

−13.8%S&P +9.3%

6 months

+32.9%S&P +13.5%

Mar 6 Sale Amado Rafael Insider

1 week

−6.0%S&P −1.5%

1 month

+7.5%S&P −1.7%

3 months

−14.9%S&P +10.0%

6 months

+34.2%S&P +15.2%

Jan 3 Sale Amado Rafael Insider

1 week

+1.7%S&P +1.1%

1 month

−6.0%S&P −0.2%

3 months

+16.1%S&P −3.9%

6 months

+9.2%S&P +9.0%

Dec 19, 2025 Sale Edmondson Frazor Titus III Insider

1 week

−1.2%S&P +1.1%

1 month

+1.8%S&P +1.2%

3 months

−3.2%S&P −3.8%

6 months

+1.8%S&P +8.3%

Nov 26, 2025 Sale Edmondson Frazor Titus III Insider

1 week

−0.1%S&P +0.7%

1 month

−10.8%S&P +1.5%

3 months

−7.8%S&P +1.3%

6 months

−14.4%S&P +12.2%

Nov 5, 2025 Sale Chen Yajing Insider

1 week

−11.8%S&P +0.9%

1 month

−21.4%S&P +1.2%

3 months

−27.4%S&P +2.2%

6 months

−25.0%S&P +9.5%

Oct 4, 2025 Sale Chen Yajing Insider

1 week

−6.2%S&P −1.3%

1 month

−22.3%S&P +0.5%

3 months

−45.4%S&P +3.3%

6 months

−35.8%S&P +1.2%

Sep 13, 2025 Buy Smiley Joshua L Insider

1 week

+3.9%S&P +1.2%

1 month

−7.9%S&P +0.5%

3 months

−44.3%S&P +3.4%

6 months

−40.4%S&P +2.1%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for ZLAB

105 held · newest 5105 held · newest 2

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See all 105 filings for ZLAB

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Jun 2, 2026 Schedule 13G

Chen Yu: 5.3%, 59,130,750 shares

Mar 30, 2026 Schedule 13G

RA Capital Management, L.P.: 5.2%, 57,435,330 shares

Dec 31, 2025 Schedule 13G

RTW Investments, LP: 6.3%, 69,590,320 shares

Dec 31, 2025 Schedule 13G, amended

Qiming Corporate GP IV, Ltd.: 4.4%, 48,883,643 shares

Dec 31, 2025 Schedule 13G, amended

Capital World Investors: 0.2%, 1,723,600 shares

Dec 31, 2025 Schedule 13G, amended

Wellington Management Group LLP: 4.3%, 48,112,590 shares

Dec 31, 2025 Schedule 13G, amended

FMR LLC: 3.9%, 43,535,993 shares

Sep 30, 2025 Schedule 13G, amended

RTW Investments, LP: 2.1%, 22,913,720 shares

Sep 30, 2025 Schedule 13G

Wellington Management Group LLP: 6%, 67,415,323 shares

Sep 30, 2025 Schedule 13G, amended

FMR LLC: 6.4%, 71,683,793 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

$50KQ4 2025

$50KQ1 2026

$50KQ2 2026

$50KQ3 2026

Unchanged from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 16, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.