Zai Lab Ltd (ZLAB)

Latest Insider Confidence Score

2026Q1

41.4
Bearish

Company insider confidence (by quarter)

2021Q1 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Qiming Corporate GP IV, Ltd — 9,072,932 Jan 6, 2021
Qiming GP IV, L.P. — 9,072,932 Jan 6, 2021
Qiming Venture Partners IV, L.P. — 9,072,932 Jan 6, 2021
Qiming Managing Directors Fund IV, L.P. — 9,072,932 Jan 6, 2021
QM 11 Ltd — 9,072,932 Jan 6, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 5, 2026 Mar 6, 2026 Edmondson Frazor Titus III Chief Legal Officer Sell 10.0 -15,569 -81.57% ✓ $296.7K
Mar 4, 2026 Mar 6, 2026 Du Ying CEO Sell 36.3 -100,000 -3.30% ✓ $1.9M
Mar 3, 2026 Mar 5, 2026 Amado Rafael Officer Sell 21.3 -10,000 -19.09% ✓ $173.8K
Dec 30, 2025 Jan 2, 2026 Amado Rafael Officer Sell 22.5 -10,787 -17.07% ✗ $188K
Dec 16, 2025 Dec 18, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 10.0 -8,651 -31.19% ✓ $148.3K
Dec 10, 2025 Dec 12, 2025 Du Ying CEO Neutral 85.0 +74,142 8.33% ✗ -
Nov 21, 2025 Nov 25, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 7.5 -14,328 -34.06% ✓ $283.4K
Oct 31, 2025 Nov 4, 2025 Chen Yajing CFO Sell 27.5 -240 -1.36% ✗ $6.4K
Oct 1, 2025 Oct 3, 2025 Chen Yajing CFO Sell 26.3 -456 -2.59% ✗ $15.6K
Sep 10, 2025 Sep 12, 2025 Smiley Joshua L Officer Buy 97.5 +10,000 13.05% ✗ $289.1K
Aug 29, 2025 Sep 3, 2025 Du Ying CEO Sell 16.3 -251,319 -22.02% ✗ $8.2M
Aug 15, 2025 Aug 19, 2025 Smiley Joshua L Officer Sell 22.5 -6,641 -7.98% ✗ $240.6K
Aug 15, 2025 Aug 19, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 22.5 -1,883 -4.28% ✗ $68.2K
Aug 14, 2025 Aug 18, 2025 Chen Yajing CFO Sell 28.8 -1,438 -7.92% ✓ $50.9K
Aug 12, 2025 Aug 14, 2025 Du Ying CEO Sell 23.8 -96,387 -8.24% ✓ $3.4M
Aug 8, 2025 Aug 12, 2025 Amado Rafael Officer Sell 32.5 -3,000 -6.64% ✓ $105K
Aug 8, 2025 Aug 12, 2025 Chen Yajing CFO Sell 20.0 -4,096 -19.50% ✓ $139.3K
Aug 8, 2025 Aug 12, 2025 Du Ying CEO Sell 23.8 -100,000 -8.52% ✓ $3.5M
Jul 2, 2025 Jul 7, 2025 Du Ying CEO Neutral 52.5 - 0.00% ✗ -
Jul 1, 2025 Jul 3, 2025 Du Ying CEO Sell 22.5 -7,072 -1.30% ✗ $249.1K
Jun 27, 2025 Jul 1, 2025 Du Ying CEO Sell 22.5 -6,918 -1.30% ✗ $245.7K
Jun 25, 2025 Jun 27, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 22.5 -5,877 -13.07% ✗ $212.3K
Jun 25, 2025 Jun 27, 2025 Du Ying CEO Sell 20.0 -23,669 -4.39% ✗ $855.2K
Jun 25, 2025 Jun 27, 2025 Chen Yajing CFO Sell 22.5 -2,675 -11.30% ✗ $96.7K
Jun 18, 2025 Jun 23, 2025 WIRTH PETER Director Neutral 82.5 +10,831 2.83% ✗ -
Jun 18, 2025 Jun 23, 2025 Vounatsos Michel Director Neutral 90.0 +10,831 27.36% ✗ -
Jun 18, 2025 Jun 23, 2025 MOULDER LEON O JR Director Neutral 90.0 +10,831 17.53% ✗ -
Jun 18, 2025 Jun 23, 2025 Morrison Scott W Director Neutral 90.0 +10,831 45.70% ✗ -
Jun 18, 2025 Jun 23, 2025 GAYNOR RICHARD Director Neutral 90.0 +10,831 24.58% ✗ -
Jun 18, 2025 Jun 23, 2025 DIEKMAN JOHN D Director Neutral 90.0 +10,831 12.18% ✗ -
Jun 18, 2025 Jun 23, 2025 Lis William Director Sell 26.3 -2,983 -7.83% ✓ $492.7K
Jun 18, 2025 Jun 23, 2025 Leung Nisa Director Neutral 90.0 +10,831 17.17% ✗ -
Jun 2, 2025 Jun 4, 2025 Chen Yajing CFO Sell 7.5 -9,618 -35.56% ✓ $288.5K
May 13, 2025 May 15, 2025 Du Ying CEO Sell 32.5 -96,389 -4.78% ✓ $2.7M
May 9, 2025 May 13, 2025 Morrison Scott W Director Sell 20.0 -23,799 -50.10% ✗ $715.1K
May 9, 2025 May 13, 2025 Du Ying CEO Sell 32.5 -100,000 -4.94% ✓ $3M
Apr 3, 2025 Apr 7, 2025 Smiley Joshua L Officer Sell 22.5 -3,354 -4.74% ✗ $111K
Apr 3, 2025 Apr 7, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 22.5 -1,874 -5.81% ✗ $62K
Apr 3, 2025 Apr 7, 2025 Du Ying CEO Sell 32.5 -2,945 -0.61% ✗ $97.5K
Apr 3, 2025 Apr 7, 2025 Chen Yajing CFO Sell 26.3 -924 -3.30% ✗ $30.6K
Apr 3, 2025 Apr 7, 2025 Amado Rafael Officer Sell 22.5 -3,029 -6.28% ✗ $100.3K
Apr 1, 2025 Apr 3, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 22.5 -4,369 -13.83% ✗ $156.8K
Apr 1, 2025 Apr 3, 2025 Du Ying CEO Sell 22.5 -5,808 -1.21% ✗ $208.5K
Apr 1, 2025 Apr 3, 2025 Chen Yajing CFO Sell 22.5 -5,280 -17.17% ✗ $189.5K
Apr 1, 2025 Apr 3, 2025 Amado Rafael Officer Sell 20.0 -7,541 -14.98% ✗ $270.7K
Apr 1, 2025 Apr 3, 2025 Smiley Joshua L Officer Sell 20.0 -11,740 -15.59% ✗ $421.4K
Mar 17, 2025 Mar 19, 2025 Amado Rafael Officer Sell 28.8 -3,000 -8.87% ✓ $115.2K
Mar 14, 2025 Mar 18, 2025 Du Ying CEO Neutral 27.5 -26,463 -5.36% ✗ -
Mar 12, 2025 Mar 14, 2025 Amado Rafael Officer Neutral 52.5 - 0.00% ✗ -
Mar 12, 2025 Mar 14, 2025 Smiley Joshua L Officer Neutral 52.5 - 0.00% ✗ -
Mar 12, 2025 Mar 14, 2025 Edmondson Frazor Titus III Chief Legal Officer Neutral 52.5 - 0.00% ✗ -
Mar 12, 2025 Mar 14, 2025 Chen Yajing CFO Neutral 52.5 - 0.00% ✗ -
Mar 10, 2025 Mar 12, 2025 Du Ying CEO Neutral 52.5 - 0.00% ✗ -
Mar 5, 2025 Mar 6, 2025 GAYNOR RICHARD Director Sell 32.5 -2,500 -5.37% ✓ $87.7K
Mar 4, 2025 Mar 6, 2025 Du Ying CEO Sell 32.5 -96,389 -3.65% ✓ $3.3M
Feb 28, 2025 Mar 4, 2025 Edmondson Frazor Titus III Chief Legal Officer Sell 7.5 -14,544 -50.37% ✓ $479.7K
Feb 28, 2025 Mar 4, 2025 Lis William Director Sell 7.5 -15,000 -28.25% ✓ $494.7K
Feb 28, 2025 Mar 4, 2025 Du Ying CEO Sell 32.5 -100,000 -3.18% ✓ $3.3M
Jan 3, 2023 Jan 3, 2025 Chen Kai-Xian Director Sell 22.5 -31,647 -44.47% ✗ $214.6K
Dec 30, 2024 Jan 2, 2025 Amado Rafael Officer Sell 22.5 -7,583 -18.31% ✗ $199.3K
Dec 11, 2024 Dec 13, 2024 Du Ying CEO Neutral 27.5 -500,000 -50.30% ✗ -
Nov 1, 2024 Nov 5, 2024 Chen Yajing CFO Sell 27.5 -167 -1.07% ✗ $5.1K
Oct 1, 2024 Oct 3, 2024 Chen Yajing CFO Sell 27.5 -301 -1.95% ✗ $7.6K
Sep 3, 2024 Sep 5, 2024 GAYNOR RICHARD Director Sell 36.3 -2,500 -5.09% ✓ $48.8K
Aug 16, 2024 Aug 20, 2024 Edmondson Frazor Titus III Chief Legal Officer Sell 26.3 -1,924 -6.25% ✗ $32.6K
Aug 13, 2024 Aug 19, 2024 Du Ying CEO Neutral 27.5 -87,793 -8.11% ✗ -
Aug 15, 2024 Aug 19, 2024 Smiley Joshua L Officer Sell 22.5 -4,352 -9.15% ✗ $72.6K
Aug 14, 2024 Aug 16, 2024 Chen Yajing CFO Sell 27.5 -422 -2.82% ✗ $6.8K
Aug 12, 2024 Aug 14, 2024 Amado Rafael Officer Sell 25.0 -3,115 -13.24% ✓ $50.5K
Jul 1, 2024 Jul 3, 2024 Lis William Director Sell 20.0 -10,397 -16.38% ✓ $180.1K
Jun 28, 2024 Jul 2, 2024 Du Ying CEO Sell 32.5 -7,013 -0.64% ✗ $122.6K
Jun 25, 2024 Jun 27, 2024 Reinhart Harald Officer Sell 22.5 -7,431 -10.61% ✗ $133K
Jun 25, 2024 Jun 27, 2024 Edmondson Frazor Titus III Chief Legal Officer Sell 22.5 -5,062 -16.32% ✗ $90.6K
Jun 25, 2024 Jun 27, 2024 Du Ying CEO Sell 20.0 -23,939 -2.05% ✗ $428.5K
Jun 25, 2024 Jun 27, 2024 Chen Yajing CFO Sell 26.3 -2,154 -13.57% ✗ $38.6K
Jun 18, 2024 Jun 20, 2024 GAYNOR RICHARD Director Neutral 90.0 +21,253 76.41% ✗ -
Jun 18, 2024 Jun 20, 2024 WIRTH PETER Director Neutral 85.0 +21,253 5.88% ✗ -
Jun 18, 2024 Jun 20, 2024 Vounatsos Michel Director Neutral 90.0 +21,253 115.93% ✗ -
Jun 18, 2024 Jun 20, 2024 MOULDER LEON O JR Director Neutral 90.0 +21,253 52.45% ✗ -
Jun 18, 2024 Jun 20, 2024 Morrison Scott W Director Neutral 90.0 +21,253 80.97% ✗ -
Jun 18, 2024 Jun 20, 2024 Lis William Director Neutral 90.0 +21,253 50.32% ✗ -
Jun 18, 2024 Jun 20, 2024 DIEKMAN JOHN D Director Neutral 90.0 +21,253 31.40% ✗ -
Jun 18, 2024 Jun 20, 2024 Chen Kai-Xian Director Neutral 90.0 +21,253 42.57% ✗ -
May 14, 2024 May 16, 2024 Edmondson Frazor Titus III Chief Legal Officer Sell 10.0 -10,000 -37.87% ✓ $213.3K
May 13, 2024 May 15, 2024 Smiley Joshua L Officer Buy 95.0 +3,000 10.46% ✓ $64.2K
Apr 3, 2024 Apr 5, 2024 Smiley Joshua L Officer Sell 26.3 -1,988 -6.48% ✗ $31.2K
Apr 3, 2024 Apr 5, 2024 Reinhart Harald Officer Sell 26.3 -2,105 -3.91% ✗ $33K
Apr 3, 2024 Apr 5, 2024 Edmondson Frazor Titus III Chief Legal Officer Sell 26.3 -1,244 -4.50% ✗ $19.5K
Apr 3, 2024 Apr 5, 2024 Du Ying CEO Neutral 52.5 - 0.00% ✗ -
Apr 3, 2024 Apr 5, 2024 Chen Yajing CFO Sell 26.3 -845 -8.08% ✗ $13.2K
Apr 3, 2024 Apr 5, 2024 Amado Rafael Officer Sell 26.3 -1,952 -7.66% ✗ $30.6K
Apr 1, 2024 Apr 3, 2024 Edmondson Frazor Titus III Chief Legal Officer Sell 26.3 -885 -3.76% ✗ $14.3K
Apr 1, 2024 Apr 3, 2024 Reinhart Harald Officer Sell 26.3 -1,773 -3.52% ✗ $28.6K
Apr 1, 2024 Apr 3, 2024 Du Ying CEO Sell 32.5 -5,787 -0.52% ✗ $93.5K
Apr 1, 2024 Apr 3, 2024 Chen Yajing CFO Sell 27.5 -519 -6.12% ✗ $8.4K
Apr 1, 2024 Apr 3, 2024 Amado Rafael Officer Neutral 52.5 - 0.00% ✗ -
Apr 1, 2024 Apr 3, 2024 Smiley Joshua L Officer Neutral 52.5 - 0.00% ✗ -
Mar 15, 2024 Mar 19, 2024 Amado Rafael Officer Sell 28.8 -2,544 -11.24% ✓ $48K
Mar 15, 2024 Mar 19, 2024 Edmondson Frazor Titus III Chief Legal Officer Sell 10.0 -10,000 -33.33% ✓ $187.1K
Mar 13, 2024 Mar 15, 2024 Du Ying CEO Neutral 27.5 -33,891 -2.99% ✗ -