Zymeworks Inc (ZYME)

Recent insider activity at Zymeworks Inc. primarily consists of proposed sales and actual sales by officers and former officers. The most recent transactions occurred on March 6, 2026, involving significant proposed sales by Jeffrey T L Smith. Overall, the pattern indicates a notable volume of selling activity by key personnel.
Stock chart
Ticker: ZYME Exchange: NYS


Loading...
Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Jeffrey T L Smith
Former Officer
1 sale — total 6,133,858 USD
Proposed sale 6 Mar 2026
Value US$3,409,629.26 | Price 491.89 | Shares 77,907
Proposed sale 17 Feb 2026
Value US$3,111,964.01 | Price 335.30 | Shares 26,121
Proposed sale 13 Feb 2026
Value US$2,978,457.16 | Price 23.17 | Shares 128,548
Sale 12 Jan 2026
Value US$138,761.82 | Price 22.67 | Shares 6,120
Proposed sale 12 Jan 2026
Value US$158,297.44 | Price 23.17 | Shares 6,832
Proposed sale 12 Jan 2026
Value US$215,712.70 | Price 23.17 | Shares 9,310
Proposed sale 12 Jan 2026
Value US$221,505.20 | Price 23.17 | Shares 9,560
Proposed sale 12 Jan 2026
Value US$141,800.40 | Price 23.17 | Shares 6,120
Proposed sale 12 Jan 2026
Value US$704,924.08 | Price 23.17 | Shares 30,424
Sale 12 Jan 2026
Value US$211,090.28 | Price 22.67 | Shares 9,310
Sale 12 Jan 2026
Value US$216,758.66 | Price 22.67 | Shares 9,560
Sale 12 Jan 2026
Value US$689,818.56 | Price 22.67 | Shares 30,424
Proposed sale 5 Jan 2026
Value US$280,521.56 | Price 26.62 | Shares 10,538
Sale 5 Jan 2026
Value US$264,471.13 | Price 25.10 | Shares 10,538
Proposed sale 5 Jan 2026
Value US$1,446,610.66 | Price 26.62 | Shares 54,343
Proposed sale 5 Jan 2026
Value US$535,328.20 | Price 26.62 | Shares 20,110
Sale 5 Jan 2026
Value US$795,220.37 | Price 25.10 | Shares 31,686
Sale 5 Jan 2026
Value US$568,620.46 | Price 25.10 | Shares 22,657
Sale 5 Jan 2026
Value US$271,573.55 | Price 25.10 | Shares 10,821
Sale 5 Jan 2026
Value US$233,125.10 | Price 25.10 | Shares 9,289
Proposed sale 22 Dec 2025
Value US$1,294,187.44 | Price 27.23 | Shares 47,528
Sale 22 Dec 2025
Value US$1,284,311.12 | Price 27.02 | Shares 47,528
Proposed sale 24 Nov 2025
Value US$2,810,760.00 | Price 23.82 | Shares 118,000
Proposed sale 21 Nov 2025
Value US$2,501,100.00 | Price 23.82 | Shares 105,000
Buy 19 May 2025
Value US$69,738.25 | Price 11.78 | Shares 5,919
Buy 15 May 2025
Value US$565,847.46 | Price 11.43 | Shares 49,502
Buy 17 Apr 2025
Value US$630,818.77 | Price 11.52 | Shares 54,760
Buy 16 Apr 2025
Value US$825,589.11 | Price 11.16 | Shares 73,953
Buy 4 Apr 2025
Value US$2,193,799.94 | Price 11.17 | Shares 196,438
Buy 3 Apr 2025
Value US$1,430,170.42 | Price 11.84 | Shares 120,770
Buy 2 Apr 2025
Value US$881,017.28 | Price 11.85 | Shares 74,360
Buy 1 Apr 2025
Value US$564,646.90 | Price 11.60 | Shares 48,658
Buy 31 Mar 2025
Value US$51,658.15 | Price 11.75 | Shares 4,397
Buy 26 Mar 2025
Value US$536,857.37 | Price 12.24 | Shares 43,848
Buy 25 Mar 2025
Value US$690,451.81 | Price 12.91 | Shares 53,501
Buy 24 Mar 2025
Value US$296,846.99 | Price 13.08 | Shares 22,689
Buy 21 Mar 2025
Value US$396,517.95 | Price 12.78 | Shares 31,033
Buy 20 Mar 2025
Value US$949,883.03 | Price 12.93 | Shares 73,476
Buy 19 Mar 2025
Value US$737,232.73 | Price 12.64 | Shares 58,306
Buy 18 Mar 2025
Value US$1,440,855.31 | Price 12.65 | Shares 113,880
Buy 17 Mar 2025
Value US$688,464.68 | Price 12.23 | Shares 56,277
Buy 13 Mar 2025
Value US$5,847,237.32 | Price 12.48 | Shares 468,356
Buy 12 Mar 2025
Value US$3,587,826.34 | Price 12.25 | Shares 292,934
Buy 11 Mar 2025
Value US$3,685,850.52 | Price 11.49 | Shares 320,690
Buy 17 Jan 2025
Value US$273,997.58 | Price 13.87 | Shares 19,748
Buy 16 Jan 2025
Value US$1,689,540.68 | Price 13.89 | Shares 121,681
Buy 15 Jan 2025
Value US$546,671.40 | Price 14.01 | Shares 39,029
Buy 14 Jan 2025
Value US$739,265.25 | Price 13.56 | Shares 54,500
Buy 13 Jan 2025
Value US$992,874.72 | Price 13.39 | Shares 74,125
Buy 10 Jan 2025
Value US$2,678,990.35 | Price 13.13 | Shares 204,098
Buy 8 Jan 2025
Value US$295,828.53 | Price 14.07 | Shares 21,021
Proposed sale 6 Jan 2025
Value US$160,651.00 | Price 14.46 | Shares 11,110
Sale 6 Jan 2025
Value US$165,806.75 | Price 14.92 | Shares 11,110
Proposed sale 6 Jan 2025
Value US$306,552.00 | Price 14.46 | Shares 21,200
Sale 6 Jan 2025
Value US$170,254.13 | Price 14.92 | Shares 11,408
Sale 6 Jan 2025
Value US$146,136.79 | Price 14.92 | Shares 9,792
Proposed sale 6 Jan 2025
Value US$828,428.00 | Price 14.46 | Shares 57,291
Sale 6 Jan 2025
Value US$498,554.48 | Price 14.92 | Shares 33,406
Sale 6 Jan 2025
Value US$356,462.13 | Price 14.92 | Shares 23,885
Buy 2 Jan 2025
Value US$2,333,403.25 | Price 14.78 | Shares 157,880
Buy 31 Dec 2024
Value US$2,134,446.32 | Price 14.57 | Shares 146,501
Buy 30 Dec 2024
Value US$853,326.31 | Price 14.47 | Shares 58,988
Buy 27 Dec 2024
Value US$1,473,181.23 | Price 14.49 | Shares 101,659
Buy 26 Dec 2024
Value US$240,037.64 | Price 14.38 | Shares 16,692
Buy 24 Dec 2024
Value US$168,895.99 | Price 14.12 | Shares 11,958
Proposed sale 11 Jun 2024
Value US$774,057.18 | Price 8.97 | Shares 86,294
Sale 8 Jan 2024
Value US$16,049.52 | Price 11.22 | Shares 1,431
Sale 8 Jan 2024
Value US$63,996.21 | Price 11.22 | Shares 5,706
Sale 8 Jan 2024
Value US$26,233.29 | Price 11.22 | Shares 2,339
Sale 5 Jan 2024
Value US$48,605.99 | Price 10.65 | Shares 4,563
Proposed sale 5 Jan 2024
Value US$63,297.00 | Price 10.56 | Shares 5,994
Sale 5 Jan 2024
Value US$193,848.74 | Price 10.65 | Shares 18,198
Sale 5 Jan 2024
Value US$79,465.41 | Price 10.65 | Shares 7,460
Proposed sale 5 Jan 2024
Value US$103,478.00 | Price 10.56 | Shares 9,799
Proposed sale 5 Jan 2024
Value US$252,427.00 | Price 10.56 | Shares 23,904
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-03-06 2026-03-06 PrS Proposed sale

Former Officer

Officer
77,907
491.89
US$3,409,629
77,907 491.89 US$3,409,629
2026-02-17 2026-02-17 PrS Proposed sale

Former officer

Officer
26,121
335.30
US$3,111,964
26,121 335.30 US$3,111,964
2026-02-13 2026-02-13 PrS Proposed sale

Former officer

Officer
42,861
98.52
US$2,777,784
42,861 98.52 US$2,777,784
2026-01-13 2026-01-12 S Sale

EVP & Chief Operating Officer

Officer
6,120 -4.4%
22.67
US$138,762
6,120 -4.4% 22.67 US$138,762
2026-01-12 2026-01-12 PrS Proposed sale

Former officer

Officer
6,832
23.17
US$158,297
6,832 23.17 US$158,297
2026-01-12 2026-01-12 PrS Proposed sale

Officer

Officer
9,310
23.17
US$215,713
9,310 23.17 US$215,713
2026-01-12 2026-01-12 PrS Proposed sale

Officer

Officer
9,560
23.17
US$221,505
9,560 23.17 US$221,505
2026-01-12 2026-01-12 PrS Proposed sale

Officer

Officer
6,120
23.17
US$141,800
6,120 23.17 US$141,800
2026-01-12 2026-01-12 PrS Proposed sale

Officer; Director

Executive Director
30,424
23.17
US$704,924
30,424 23.17 US$704,924
2026-01-12 2026-01-12 S Sale

EVP & Chief Medical Officer

Officer
9,310 -25.8%
22.67
US$211,090
9,310 -25.8% 22.67 US$211,090
2026-01-12 2026-01-12 S Sale

Chief Scientific Officer

Officer
9,560 -16.5%
22.67
US$216,759
9,560 -16.5% 22.67 US$216,759
2026-01-12 2026-01-12 S Sale

Chair & CEO

Executive Director
30,424 -11.8%
22.67
US$689,819
30,424 -11.8% 22.67 US$689,819
2026-01-05 2026-01-05 PrS Proposed sale

Officer

Officer
10,538
26.62
US$280,522
10,538 26.62 US$280,522
2026-01-05 2026-01-05 PrS Proposed sale

Officer; Director

Executive Director
54,343
26.62
US$1,446,611
54,343 26.62 US$1,446,611
2026-01-05 2026-01-05 PrS Proposed sale

Officer

Officer
20,110
26.62
US$535,328
20,110 26.62 US$535,328
2026-01-05 2026-01-05 S Sale

EVP & Chief Medical Officer

Officer
10,538 -36.5%
25.10
US$264,471
10,538 -36.5% 25.10 US$264,471
2026-01-05 2026-01-05 S Sale

Chair & CEO

Executive Director
31,686 -14.1%
25.10
US$795,220
31,686 -14.1% 25.10 US$795,220
2026-01-05 2026-01-05 S Sale

Chair & CEO

Executive Director
22,657 -12.5%
25.10
US$568,620
22,657 -12.5% 25.10 US$568,620
2026-01-05 2026-01-05 S Sale

Chief Scientific Officer

Officer
10,821 -21.1%
25.10
US$271,574
10,821 -21.1% 25.10 US$271,574
2026-01-05 2026-01-05 S Sale

Chief Scientific Officer

Officer
9,289 -22.9%
25.10
US$233,125
9,289 -22.9% 25.10 US$233,125
2025-12-22 2025-12-22 PrS Proposed sale

Officer; Director

Executive Director
47,528
27.23
US$1,294,187
47,528 27.23 US$1,294,187
2025-12-22 2025-12-22 S Sale

Chair & CEO

Executive Director
47,528 -26.3%
27.02
US$1,284,311
47,528 -26.3% 27.02 US$1,284,311
2025-11-24 2025-11-24 PrS Proposed sale

Former Director

Non-Executive Director
118,000
23.82
US$2,810,760
118,000 23.82 US$2,810,760
2025-11-21 2025-11-21 PrS Proposed sale

Former Director

Non-Executive Director
105,000
23.82
US$2,501,100
105,000 23.82 US$2,501,100
2025-05-19 2025-05-19 B Purchase Non-Executive Director Large shareholder
5,919 +0.0%
11.78
US$69,738
5,919 +0.0% 11.78 US$69,738
2025-05-19 2025-05-15 B Purchase Non-Executive Director Large shareholder
49,502 +0.3%
11.43
US$565,847
49,502 +0.3% 11.43 US$565,847
2025-04-18 2025-04-17 B Purchase Non-Executive Director Large shareholder
54,760 +0.3%
11.52
US$630,819
54,760 +0.3% 11.52 US$630,819
2025-04-18 2025-04-16 B Purchase Non-Executive Director Large shareholder
73,953 +0.4%
11.16
US$825,589
73,953 +0.4% 11.16 US$825,589
2025-04-07 2025-04-04 B Purchase Non-Executive Director Large shareholder
196,438 +1.1%
11.17
US$2,193,800
196,438 +1.1% 11.17 US$2,193,800
2025-04-07 2025-04-03 B Purchase Non-Executive Director Large shareholder
120,770 +0.7%
11.84
US$1,430,170
120,770 +0.7% 11.84 US$1,430,170
2025-04-02 2025-04-02 B Purchase Non-Executive Director Large shareholder
74,360 +0.4%
11.85
US$881,017
74,360 +0.4% 11.85 US$881,017
2025-04-02 2025-04-01 B Purchase Non-Executive Director Large shareholder
48,658 +0.3%
11.60
US$564,647
48,658 +0.3% 11.60 US$564,647
2025-04-02 2025-03-31 B Purchase Non-Executive Director Large shareholder
4,397 +0.0%
11.75
US$51,658
4,397 +0.0% 11.75 US$51,658
2025-03-27 2025-03-26 B Purchase Non-Executive Director Large shareholder
43,848 +0.3%
12.24
US$536,857
43,848 +0.3% 12.24 US$536,857
2025-03-27 2025-03-25 B Purchase Non-Executive Director Large shareholder
53,501 +0.3%
12.91
US$690,452
53,501 +0.3% 12.91 US$690,452
2025-03-24 2025-03-24 B Purchase Non-Executive Director Large shareholder
22,689 +0.1%
13.08
US$296,847
22,689 +0.1% 13.08 US$296,847
2025-03-24 2025-03-21 B Purchase Non-Executive Director Large shareholder
31,033 +0.2%
12.78
US$396,518
31,033 +0.2% 12.78 US$396,518
2025-03-24 2025-03-20 B Purchase Non-Executive Director Large shareholder
73,476 +0.4%
12.93
US$949,883
73,476 +0.4% 12.93 US$949,883
2025-03-19 2025-03-19 B Purchase Non-Executive Director Large shareholder
58,306 +0.3%
12.64
US$737,233
58,306 +0.3% 12.64 US$737,233
2025-03-19 2025-03-18 B Purchase Non-Executive Director Large shareholder
113,880 +0.7%
12.65
US$1,440,855
113,880 +0.7% 12.65 US$1,440,855
2025-03-19 2025-03-17 B Purchase Non-Executive Director Large shareholder
56,277 +0.3%
12.23
US$688,465
56,277 +0.3% 12.23 US$688,465
2025-03-13 2025-03-13 B Purchase Non-Executive Director Large shareholder
468,356 +2.9%
12.48
US$5,847,237
468,356 +2.9% 12.48 US$5,847,237
2025-03-13 2025-03-12 B Purchase Non-Executive Director Large shareholder
292,934 +1.8%
12.25
US$3,587,826
292,934 +1.8% 12.25 US$3,587,826
2025-03-13 2025-03-11 B Purchase Non-Executive Director Large shareholder
320,690 +2.0%
11.49
US$3,685,851
320,690 +2.0% 11.49 US$3,685,851
2025-01-21 2025-01-17 B Purchase Non-Executive Director Large shareholder
19,748 +0.1%
13.87
US$273,998
19,748 +0.1% 13.87 US$273,998
2025-01-21 2025-01-16 B Purchase Non-Executive Director Large shareholder
121,681 +0.8%
13.89
US$1,689,541
121,681 +0.8% 13.89 US$1,689,541
2025-01-15 2025-01-15 B Purchase Non-Executive Director Large shareholder
39,029 +0.3%
14.01
US$546,671
39,029 +0.3% 14.01 US$546,671
2025-01-15 2025-01-14 B Purchase Non-Executive Director Large shareholder
54,500 +0.4%
13.56
US$739,265
54,500 +0.4% 13.56 US$739,265
2025-01-15 2025-01-13 B Purchase Non-Executive Director Large shareholder
74,125 +0.5%
13.39
US$992,875
74,125 +0.5% 13.39 US$992,875
2025-01-10 2025-01-10 B Purchase Non-Executive Director Large shareholder
204,098 +1.3%
13.13
US$2,678,990
204,098 +1.3% 13.13 US$2,678,990
2025-01-10 2025-01-08 B Purchase Non-Executive Director Large shareholder
21,021 +0.1%
14.07
US$295,829
21,021 +0.1% 14.07 US$295,829
2025-01-06 2025-01-06 PrS Proposed sale

Officer

Officer
11,110
14.46
US$160,651
11,110 14.46 US$160,651
2025-01-06 2025-01-06 PrS Proposed sale

Officer

Officer
21,200
14.46
US$306,552
21,200 14.46 US$306,552
2025-01-06 2025-01-06 PrS Proposed sale

Officer; Director

Executive Director
57,291
14.46
US$828,428
57,291 14.46 US$828,428
2025-01-06 2025-01-06 S Sale

Chief Scientific Officer

Officer
11,408 -32.8%
14.92
US$170,254
11,408 -32.8% 14.92 US$170,254
2025-01-06 2025-01-06 S Sale

Chief Scientific Officer

Officer
9,792 -39.9%
14.92
US$146,137
9,792 -39.9% 14.92 US$146,137
2025-01-06 2025-01-06 S Sale

Chair & CEO

Executive Director
33,406 -29.2%
14.92
US$498,554
33,406 -29.2% 14.92 US$498,554
2025-01-06 2025-01-06 S Sale

Chair & CEO

Executive Director
23,885 -33.4%
14.92
US$356,462
23,885 -33.4% 14.92 US$356,462
2025-01-06 2025-01-06 S Sale

EVP & Chief Medical Officer

Officer
11,110 -55.5%
14.92
US$165,807
11,110 -55.5% 14.92 US$165,807
2025-01-02 2025-01-02 B Purchase Non-Executive Director Large shareholder
157,880 +1.1%
14.78
US$2,333,403
157,880 +1.1% 14.78 US$2,333,403
2025-01-02 2024-12-31 B Purchase Non-Executive Director Large shareholder
146,501 +1.0%
14.57
US$2,134,446
146,501 +1.0% 14.57 US$2,134,446
2025-01-02 2024-12-30 B Purchase Non-Executive Director Large shareholder
58,988 +0.4%
14.47
US$853,326
58,988 +0.4% 14.47 US$853,326
2024-12-27 2024-12-27 B Purchase Non-Executive Director Large shareholder
101,659 +0.7%
14.49
US$1,473,181
101,659 +0.7% 14.49 US$1,473,181
2024-12-27 2024-12-26 B Purchase Non-Executive Director Large shareholder
16,692 +0.1%
14.38
US$240,038
16,692 +0.1% 14.38 US$240,038
2024-12-27 2024-12-24 B Purchase Non-Executive Director Large shareholder
11,958 +0.1%
14.12
US$168,896
11,958 +0.1% 14.12 US$168,896
2024-06-11 2024-06-11 PrS Proposed sale

Former Officer

Officer
86,294
8.97
US$774,057
86,294 8.97 US$774,057
2024-01-08 2024-01-08 S Sale

SVP & Chief Financial Officer

Officer
1,431 -18.0%
11.22
US$16,050
1,431 -18.0% 11.22 US$16,050
2024-01-08 2024-01-08 S Sale

Chair & CEO

Executive Director
5,706 -19.4%
11.22
US$63,996
5,706 -19.4% 11.22 US$63,996
2024-01-08 2024-01-08 S Sale

Chief Scientific Officer

Officer
2,339 -24.1%
11.22
US$26,233
2,339 -24.1% 11.22 US$26,233
2024-01-08 2024-01-05 S Sale

SVP & Chief Financial Officer

Officer
4,563 -36.5%
10.65
US$48,606
4,563 -36.5% 10.65 US$48,606
2024-01-08 2024-01-05 S Sale

Chair & CEO

Executive Director
18,198 -38.2%
10.65
US$193,849
18,198 -38.2% 10.65 US$193,849
2024-01-08 2024-01-05 S Sale

Chief Scientific Officer

Officer
7,460 -43.5%
10.65
US$79,465
7,460 -43.5% 10.65 US$79,465
2024-01-05 2024-01-05 PrS Proposed sale

Officer

Officer
5,994
10.56
US$63,297
5,994 10.56 US$63,297
2024-01-05 2024-01-05 PrS Proposed sale

Officer; Director

Executive Director
23,904
10.56
US$252,427
23,904 10.56 US$252,427
2024-01-05 2024-01-05 PrS Proposed sale

Officer

Officer
9,799
10.56
US$103,478
9,799 10.56 US$103,478