Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Zai Lab Ltd (ZLAB) since 2021 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Zai Lab Ltd. Table 2 shows the detailed insider transactions. This company's CIK number is 1704292.
Total stock buying since 2021: $988,211.
Total stock sales since 2021: $167,209,231.
Total stock option exercises since 2021: $8,562,528.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2026 | 1,731 | $32,733 | 269,036 | $5,177,305 | 609,093 | $577,459 |
| 2025 | 10,000 | $289,100 | 816,035 | $26,462,561 | 1,478,699 | $1,078,749 |
| 2024 | 6,000 | $126,688 | 145,768 | $2,920,733 | 254,859 | $796,593 |
| 2023 | 9,000 | $254,250 | 25,044 | $994,518 | 492,175 | $3,086,501 |
| 2022 | 0 | $0 | 4,780 | $227,205 | 9,804 | $5,562 |
| 2021 | 4,000 | $285,440 | 854,069 | $131,426,909 | 604,444 | $3,017,664 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2026-04 | 0 | $0 | 34,493 | $703,309 | 125,119 | $0 |
| 2026-03 | 1,731 | $32,733 | 234,543 | $4,473,996 | 483,974 | $577,459 |
| 2025-12 | 0 | $0 | 19,438 | $336,316 | 21,000 | $0 |
| 2025-11 | 0 | $0 | 14,568 | $289,846 | 0 | $0 |
| 2025-10 | 0 | $0 | 456 | $15,616 | 1,420 | $0 |
| 2025-09 | 10,000 | $289,100 | 0 | $0 | 0 | $0 |
| 2025-08 | 0 | $0 | 213,445 | $7,430,881 | 822,763 | $843,083 |
| 2025-07 | 0 | $0 | 7,072 | $249,146 | 18,000 | $0 |
| 2025-06 | 0 | $0 | 62,571 | $2,191,220 | 97,620 | $0 |
| 2025-05 | 0 | $0 | 220,188 | $6,448,890 | 196,389 | $117,833 |
| 2025-04 | 0 | $0 | 46,864 | $1,648,349 | 125,118 | $0 |
| 2025-03 | 0 | $0 | 151,889 | $5,158,437 | 146,389 | $87,833 |
| 2025-02 | 0 | $0 | 79,544 | $2,693,860 | 50,000 | $30,000 |
| 2024-11 | 0 | $0 | 167 | $5,120 | 500 | $0 |
| 2024-10 | 0 | $0 | 301 | $7,644 | 920 | $0 |
| 2024-09 | 0 | $0 | 2,500 | $48,750 | 0 | $0 |
| 2024-08 | 0 | $0 | 9,813 | $162,421 | 22,000 | $0 |
| 2024-07 | 0 | $0 | 17,410 | $306,360 | 0 | $0 |
| 2024-06 | 0 | $0 | 38,586 | $690,726 | 115,870 | $0 |
| 2024-05 | 3,000 | $64,199 | 10,000 | $213,350 | 0 | $0 |
| 2024-04 | 0 | $0 | 17,098 | $272,256 | 48,886 | $796,593 |
| 2024-03 | 3,000 | $62,489 | 12,544 | $235,109 | 0 | $0 |
| 2024-01 | 0 | $0 | 37,349 | $978,997 | 66,683 | $0 |
| 2023-12 | 4,000 | $119,600 | 0 | $0 | 42,000 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2026-04-02 | Chen Yajing (Chief Financial Officer) | Sale | 5,199 | 20.39 | 106,007 |
| 2026-04-02 | Chen Yajing (Chief Financial Officer) | Option Ex | 2,500 | .00 | 0 |
| 2026-04-02 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 4,194 | 20.39 | 85,515 |
| 2026-04-02 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 5,031 | .00 | 0 |
| 2026-04-02 | Du Ying (Chairperson & CEO) | Sale | 5,576 | 20.39 | 113,694 |
| 2026-04-02 | Du Ying (Chairperson & CEO) | Option Ex | 6,750 | .00 | 0 |
| 2026-04-02 | Smiley Joshua L (See Remarks) | Sale | 9,614 | 20.39 | 196,029 |
| 2026-04-02 | Smiley Joshua L (See Remarks) | Option Ex | 7,145 | .00 | 0 |
| 2026-04-02 | Amado Rafael (See Remarks) | Sale | 9,910 | 20.39 | 202,064 |
| 2026-04-02 | Amado Rafael (See Remarks) | Option Ex | 5,391 | .00 | 0 |
| 2026-04-01 | Chen Yajing (Chief Financial Officer) | Option Ex | 15,258 | .00 | 0 |
| 2026-04-01 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 17,259 | .00 | 0 |
| 2026-04-01 | Du Ying (Chairperson & CEO) | Option Ex | 14,200 | .00 | 0 |
| 2026-04-01 | Smiley Joshua L (See Remarks) | Option Ex | 32,062 | .00 | 0 |
| 2026-04-01 | Amado Rafael (See Remarks) | Option Ex | 19,523 | .00 | 0 |
| 2026-03-17 | Gaynor Richard | Buy | 1,731 | 18.91 | 32,733 |
| 2026-03-13 | Chen Yajing (Chief Financial Officer) | Sale | 1,703 | 18.63 | 31,723 |
| 2026-03-13 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 1,281 | 18.63 | 23,862 |
| 2026-03-13 | Smiley Joshua L (See Remarks) | Sale | 1,966 | 18.63 | 36,622 |
| 2026-03-13 | Amado Rafael (See Remarks) | Sale | 2,957 | 18.63 | 55,082 |
| 2026-03-12 | Chen Yajing (Chief Financial Officer) | Option Ex | 4,258 | .00 | 0 |
| 2026-03-12 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 4,258 | .00 | 0 |
| 2026-03-12 | Smiley Joshua L (See Remarks) | Option Ex | 6,388 | .00 | 0 |
| 2026-03-12 | Amado Rafael (See Remarks) | Option Ex | 5,323 | .00 | 0 |
| 2026-03-11 | Du Ying (Chairperson & CEO) | Sale | 1,067 | 19.08 | 20,362 |
| 2026-03-10 | Du Ying (Chairperson & CEO) | Option Ex | 263,747 | .87 | 229,459 |
| 2026-03-09 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 19.03 | 951,450 |
| 2026-03-09 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | 1.74 | 87,000 |
| 2026-03-06 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 19.42 | 970,950 |
| 2026-03-06 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | 1.74 | 87,000 |
| 2026-03-05 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 15,569 | 19.06 | 296,745 |
| 2026-03-05 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 19.22 | 961,050 |
| 2026-03-05 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | 1.74 | 87,000 |
| 2026-03-04 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 19.05 | 952,350 |
| 2026-03-04 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | 1.74 | 87,000 |
| 2026-03-03 | Amado Rafael (See Remarks) | Sale | 10,000 | 17.38 | 173,800 |
| 2025-12-31 | Amado Rafael (See Remarks) | Sale | 10,787 | 17.43 | 188,038 |
| 2025-12-30 | Amado Rafael (See Remarks) | Option Ex | 21,000 | .00 | 0 |
| 2025-12-16 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 8,651 | 17.14 | 148,278 |
| 2025-11-21 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 14,328 | 19.78 | 283,407 |
| 2025-11-03 | Chen Yajing (Chief Financial Officer) | Sale | 240 | 26.83 | 6,439 |
| 2025-10-31 | Chen Yajing (Chief Financial Officer) | Option Ex | 500 | .00 | 0 |
| 2025-10-02 | Chen Yajing (Chief Financial Officer) | Sale | 456 | 34.25 | 15,616 |
| 2025-10-01 | Chen Yajing (Chief Financial Officer) | Option Ex | 920 | .00 | 0 |
| 2025-09-10 | Smiley Joshua L (See Remarks) | Buy | 10,000 | 28.91 | 289,100 |
| 2025-08-29 | Du Ying (Chairperson & CEO) | Option Ex | 604,376 | 1.20 | 725,251 |
| 2025-08-18 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 1,883 | 36.24 | 68,232 |
| 2025-08-18 | Smiley Joshua L (See Remarks) | Sale | 6,641 | 36.24 | 240,643 |
| 2025-08-15 | Chen Yajing (Chief Financial Officer) | Sale | 1,438 | 35.40 | 50,903 |
| 2025-08-15 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 4,850 | .00 | 0 |
| 2025-08-15 | Smiley Joshua L (See Remarks) | Option Ex | 15,900 | .00 | 0 |
| 2025-08-14 | Chen Yajing (Chief Financial Officer) | Option Ex | 1,250 | .00 | 0 |
| 2025-08-13 | Du Ying (Chairperson & CEO) | Sale | 46,387 | 35.47 | 1,645,300 |
| 2025-08-13 | Du Ying (Chairperson & CEO) | Option Ex | 46,387 | .60 | 27,832 |
| 2025-08-12 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 34.25 | 1,712,549 |
| 2025-08-12 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-08-11 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 34.64 | 1,731,800 |
| 2025-08-11 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-08-08 | Chen Yajing (Chief Financial Officer) | Sale | 4,096 | 34.01 | 139,304 |
| 2025-08-08 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 34.74 | 1,737,150 |
| 2025-08-08 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-08-08 | Amado Rafael (See Remarks) | Sale | 3,000 | 35.00 | 105,000 |
| 2025-07-02 | Du Ying (Chairperson & CEO) | Sale | 7,072 | 35.23 | 249,146 |
| 2025-07-01 | Du Ying (Chairperson & CEO) | Option Ex | 18,000 | .00 | 0 |
| 2025-06-30 | Du Ying (Chairperson & CEO) | Sale | 6,918 | 35.52 | 245,727 |
| 2025-06-27 | Du Ying (Chairperson & CEO) | Option Ex | 17,970 | .00 | 0 |
| 2025-06-26 | Chen Yajing (Chief Financial Officer) | Sale | 2,675 | 36.13 | 96,653 |
| 2025-06-26 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 5,877 | 36.13 | 212,347 |
| 2025-06-26 | Du Ying (Chairperson & CEO) | Sale | 23,669 | 36.13 | 855,208 |
| 2025-06-25 | Chen Yajing (Chief Financial Officer) | Option Ex | 6,250 | .00 | 0 |
| 2025-06-25 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 14,600 | .00 | 0 |
| 2025-06-25 | Du Ying (Chairperson & CEO) | Option Ex | 58,800 | .00 | 0 |
| 2025-06-20 | Lis William | Sale | 13,814 | 35.67 | 492,745 |
| 2025-06-02 | Chen Yajing (Chief Financial Officer) | Sale | 9,618 | 30.00 | 288,540 |
| 2025-05-14 | Du Ying (Chairperson & CEO) | Sale | 46,389 | 28.45 | 1,319,952 |
| 2025-05-14 | Du Ying (Chairperson & CEO) | Option Ex | 46,389 | .60 | 27,833 |
| 2025-05-13 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 28.73 | 1,436,300 |
| 2025-05-13 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-05-12 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 29.68 | 1,483,950 |
| 2025-05-12 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-05-09 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 29.87 | 1,493,600 |
| 2025-05-09 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-05-09 | Morrison Scott W | Sale | 23,799 | 30.05 | 715,088 |
| 2025-04-04 | Chen Yajing (Chief Financial Officer) | Sale | 924 | 33.11 | 30,591 |
| 2025-04-04 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 1,874 | 33.11 | 62,044 |
| 2025-04-04 | Du Ying (Chairperson & CEO) | Sale | 2,945 | 33.11 | 97,503 |
| 2025-04-04 | Smiley Joshua L (See Remarks) | Sale | 3,354 | 33.11 | 111,044 |
| 2025-04-04 | Amado Rafael (See Remarks) | Sale | 3,029 | 33.11 | 100,284 |
| 2025-04-03 | Chen Yajing (Chief Financial Officer) | Option Ex | 2,500 | .00 | 0 |
| 2025-04-03 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 5,032 | .00 | 0 |
| 2025-04-03 | Du Ying (Chairperson & CEO) | Option Ex | 6,750 | .00 | 0 |
| 2025-04-03 | Smiley Joshua L (See Remarks) | Option Ex | 7,145 | .00 | 0 |
| 2025-04-03 | Amado Rafael (See Remarks) | Option Ex | 5,391 | .00 | 0 |
| 2025-04-02 | Chen Yajing (Chief Financial Officer) | Sale | 5,280 | 35.89 | 189,520 |
| 2025-04-02 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 4,369 | 35.89 | 156,820 |
| 2025-04-02 | Du Ying (Chairperson & CEO) | Sale | 5,808 | 35.89 | 208,472 |
| 2025-04-02 | Smiley Joshua L (See Remarks) | Sale | 11,740 | 35.89 | 421,395 |
| 2025-04-02 | Amado Rafael (See Remarks) | Sale | 7,541 | 35.89 | 270,676 |
| 2025-04-01 | Chen Yajing (Chief Financial Officer) | Option Ex | 15,257 | .00 | 0 |
| 2025-04-01 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 17,258 | .00 | 0 |
| 2025-04-01 | Du Ying (Chairperson & CEO) | Option Ex | 14,200 | .00 | 0 |
| 2025-04-01 | Smiley Joshua L (See Remarks) | Option Ex | 32,062 | .00 | 0 |
| 2025-04-01 | Amado Rafael (See Remarks) | Option Ex | 19,523 | .00 | 0 |
| 2025-03-17 | Amado Rafael (See Remarks) | Sale | 3,000 | 38.41 | 115,229 |
| 2025-03-05 | Gaynor Richard | Sale | 2,500 | 35.07 | 87,675 |
| 2025-03-05 | Du Ying (Chairperson & CEO) | Sale | 46,389 | 35.52 | 1,647,783 |
| 2025-03-05 | Du Ying (Chairperson & CEO) | Option Ex | 46,389 | .60 | 27,833 |
| 2025-03-04 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 33.41 | 1,670,450 |
| 2025-03-04 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-03-03 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 32.75 | 1,637,300 |
| 2025-03-03 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-02-28 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 14,544 | 32.98 | 479,661 |
| 2025-02-28 | Du Ying (Chairperson & CEO) | Sale | 50,000 | 34.39 | 1,719,500 |
| 2025-02-28 | Du Ying (Chairperson & CEO) | Option Ex | 50,000 | .60 | 30,000 |
| 2025-02-28 | Lis William | Sale | 15,000 | 32.98 | 494,699 |
| 2024-11-04 | Chen Yajing (Chief Financial Officer) | Sale | 167 | 30.66 | 5,120 |
| 2024-11-01 | Chen Yajing (Chief Financial Officer) | Option Ex | 500 | .00 | 0 |
| 2024-10-02 | Chen Yajing (Chief Financial Officer) | Sale | 301 | 25.40 | 7,644 |
| 2024-10-01 | Chen Yajing (Chief Financial Officer) | Option Ex | 920 | .00 | 0 |
| 2024-09-03 | Gaynor Richard | Sale | 2,500 | 19.50 | 48,750 |
| 2024-08-19 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 1,924 | 16.95 | 32,619 |
| 2024-08-16 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 4,850 | .00 | 0 |
| 2024-08-16 | Smiley Joshua L (See Remarks) | Sale | 4,352 | 16.67 | 72,560 |
| 2024-08-15 | Chen Yajing (Chief Financial Officer) | Sale | 422 | 16.06 | 6,779 |
| 2024-08-15 | Smiley Joshua L (See Remarks) | Option Ex | 15,900 | .00 | 0 |
| 2024-08-14 | Chen Yajing (Chief Financial Officer) | Option Ex | 1,250 | .00 | 0 |
| 2024-08-12 | Amado Rafael (See Remarks) | Sale | 3,115 | 16.20 | 50,463 |
| 2024-07-01 | Du Ying (Chairperson & CEO) | Sale | 7,013 | 17.48 | 122,573 |
| 2024-07-01 | Lis William | Sale | 10,397 | 17.68 | 183,787 |
| 2024-06-28 | Du Ying (Chairperson & CEO) | Option Ex | 17,970 | .00 | 0 |
| 2024-06-26 | Chen Yajing (Chief Financial Officer) | Sale | 2,154 | 17.90 | 38,558 |
| 2024-06-26 | Reinhart Harald (See Remarks) | Sale | 7,431 | 17.90 | 133,022 |
| 2024-06-26 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 5,062 | 17.90 | 90,614 |
| 2024-06-26 | Du Ying (Chairperson & CEO) | Sale | 23,939 | 17.90 | 428,532 |
| 2024-06-25 | Chen Yajing (Chief Financial Officer) | Option Ex | 6,250 | .00 | 0 |
| 2024-06-25 | Reinhart Harald (See Remarks) | Option Ex | 18,250 | .00 | 0 |
| 2024-06-25 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 14,600 | .00 | 0 |
| 2024-06-25 | Du Ying (Chairperson & CEO) | Option Ex | 58,800 | .00 | 0 |
| 2024-05-14 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 10,000 | 21.34 | 213,350 |
| 2024-05-13 | Smiley Joshua L (See Remarks) | Buy | 3,000 | 21.40 | 64,199 |
| 2024-04-04 | Chen Yajing (Chief Financial Officer) | Sale | 845 | 15.67 | 13,243 |
| 2024-04-04 | Reinhart Harald (See Remarks) | Sale | 2,105 | 15.67 | 32,991 |
| 2024-04-04 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Sale | 1,244 | 15.67 | 19,497 |
| 2024-04-04 | Smiley Joshua L (See Remarks) | Sale | 1,988 | 15.67 | 31,157 |
| 2024-04-04 | Amado Rafael (See Remarks) | Sale | 1,952 | 15.67 | 30,593 |
| 2024-04-03 | Chen Yajing (Chief Financial Officer) | Option Ex | 2,500 | 15.90 | 39,750 |
| 2024-04-03 | Reinhart Harald (See Remarks) | Option Ex | 5,270 | 15.90 | 83,793 |
| 2024-04-03 | Edmondson Frazor Titus Iii (Chief Legal Officer) | Option Ex | 5,031 | 15.90 | 79,992 |
| 2024-04-03 | Smiley Joshua L (See Remarks) | Option Ex | 7,145 | 15.90 | 113,605 |
| 2024-04-03 | Amado Rafael (See Remarks) | Option Ex | 5,391 | 15.90 | 85,716 |
Insider trading activities including stock purchases, stock sales, and option exercises of ZLAB listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Zai Lab Ltd (symbol ZLAB, CIK number 1704292) see the Securities and Exchange Commission (SEC) website.