EcoR1 Capital, LLC

EcoR1 Capital, LLC's trades of Zymeworks Inc's stock


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-04-18 2025-04-17
US Zymeworks Inc (ZYME)
B Purchase
54,760 +0.3%
11.52
USD 630,819 		54,760 +0.3% 11.52 USD 630,819
2025-04-18 2025-04-16
US Zymeworks Inc (ZYME)
B Purchase
73,953 +0.4%
11.16
USD 825,589 		73,953 +0.4% 11.16 USD 825,589
2025-04-07 2025-04-04
US Zymeworks Inc (ZYME)
B Purchase
196,438 +1.1%
11.17
USD 2,193,800 		196,438 +1.1% 11.17 USD 2,193,800
2025-04-07 2025-04-03
US Zymeworks Inc (ZYME)
B Purchase
120,770 +0.7%
11.84
USD 1,430,170 		120,770 +0.7% 11.84 USD 1,430,170
2025-04-02 2025-04-02
US Zymeworks Inc (ZYME)
B Purchase
74,360 +0.4%
11.85
USD 881,017 		74,360 +0.4% 11.85 USD 881,017
2025-04-02 2025-04-01
US Zymeworks Inc (ZYME)
B Purchase
48,658 +0.3%
11.60
USD 564,647 		48,658 +0.3% 11.60 USD 564,647
2025-04-02 2025-03-31
US Zymeworks Inc (ZYME)
B Purchase
4,397 +0.0%
11.75
USD 51,658 		4,397 +0.0% 11.75 USD 51,658
2025-03-27 2025-03-26
US Zymeworks Inc (ZYME)
B Purchase
43,848 +0.3%
12.24
USD 536,857 		43,848 +0.3% 12.24 USD 536,857
2025-03-27 2025-03-25
US Zymeworks Inc (ZYME)
B Purchase
53,501 +0.3%
12.91
USD 690,452 		53,501 +0.3% 12.91 USD 690,452
2025-03-24 2025-03-24
US Zymeworks Inc (ZYME)
B Purchase
22,689 +0.1%
13.08
USD 296,847 		22,689 +0.1% 13.08 USD 296,847
2025-03-24 2025-03-21
US Zymeworks Inc (ZYME)
B Purchase
31,033 +0.2%
12.78
USD 396,518 		31,033 +0.2% 12.78 USD 396,518
2025-03-24 2025-03-20
US Zymeworks Inc (ZYME)
B Purchase
73,476 +0.4%
12.93
USD 949,883 		73,476 +0.4% 12.93 USD 949,883
2025-03-19 2025-03-19
US Zymeworks Inc (ZYME)
B Purchase
58,306 +0.3%
12.64
USD 737,233 		58,306 +0.3% 12.64 USD 737,233
2025-03-19 2025-03-18
US Zymeworks Inc (ZYME)
B Purchase
113,880 +0.7%
12.65
USD 1,440,855 		113,880 +0.7% 12.65 USD 1,440,855
2025-03-19 2025-03-17
US Zymeworks Inc (ZYME)
B Purchase
56,277 +0.3%
12.23
USD 688,465 		56,277 +0.3% 12.23 USD 688,465
2025-03-13 2025-03-13
US Zymeworks Inc (ZYME)
B Purchase
468,356 +2.9%
12.48
USD 5,847,237 		468,356 +2.9% 12.48 USD 5,847,237
2025-03-13 2025-03-12
US Zymeworks Inc (ZYME)
B Purchase
292,934 +1.8%
12.25
USD 3,587,826 		292,934 +1.8% 12.25 USD 3,587,826
2025-03-13 2025-03-11
US Zymeworks Inc (ZYME)
B Purchase
320,690 +2.0%
11.49
USD 3,685,851 		320,690 +2.0% 11.49 USD 3,685,851
2025-01-21 2025-01-17
US Zymeworks Inc (ZYME)
B Purchase
19,748 +0.1%
13.87
USD 273,998 		19,748 +0.1% 13.87 USD 273,998
2025-01-21 2025-01-16
US Zymeworks Inc (ZYME)
B Purchase
121,681 +0.8%
13.89
USD 1,689,541 		121,681 +0.8% 13.89 USD 1,689,541
2025-01-15 2025-01-15
US Zymeworks Inc (ZYME)
B Purchase
39,029 +0.3%
14.01
USD 546,671 		39,029 +0.3% 14.01 USD 546,671
2025-01-15 2025-01-14
US Zymeworks Inc (ZYME)
B Purchase
54,500 +0.4%
13.56
USD 739,265 		54,500 +0.4% 13.56 USD 739,265
2025-01-15 2025-01-13
US Zymeworks Inc (ZYME)
B Purchase
74,125 +0.5%
13.39
USD 992,875 		74,125 +0.5% 13.39 USD 992,875
2025-01-10 2025-01-10
US Zymeworks Inc (ZYME)
B Purchase
204,098 +1.3%
13.13
USD 2,678,990 		204,098 +1.3% 13.13 USD 2,678,990
2025-01-10 2025-01-08
US Zymeworks Inc (ZYME)
B Purchase
21,021 +0.1%
14.07
USD 295,829 		21,021 +0.1% 14.07 USD 295,829
2025-01-02 2025-01-02
B Purchase
6,646 +0.1%
12.95
USD 86,070 		6,646 +0.1% 12.95 USD 86,070
2025-01-02 2025-01-02
US Zymeworks Inc (ZYME)
B Purchase
157,880 +1.1%
14.78
USD 2,333,403 		157,880 +1.1% 14.78 USD 2,333,403
2025-01-02 2024-12-31
B Purchase
13,268 +0.2%
12.93
USD 171,513 		13,268 +0.2% 12.93 USD 171,513
2025-01-02 2024-12-31
US Zymeworks Inc (ZYME)
B Purchase
146,501 +1.0%
14.57
USD 2,134,446 		146,501 +1.0% 14.57 USD 2,134,446
2025-01-02 2024-12-30
B Purchase
65,184 +0.8%
12.92
USD 842,060 		65,184 +0.8% 12.92 USD 842,060
2025-01-02 2024-12-30
US Zymeworks Inc (ZYME)
B Purchase
58,988 +0.4%
14.47
USD 853,326 		58,988 +0.4% 14.47 USD 853,326
2024-12-27 2024-12-27
US Zymeworks Inc (ZYME)
B Purchase
101,659 +0.7%
14.49
USD 1,473,181 		101,659 +0.7% 14.49 USD 1,473,181
2024-12-27 2024-12-26
US Zymeworks Inc (ZYME)
B Purchase
16,692 +0.1%
14.38
USD 240,038 		16,692 +0.1% 14.38 USD 240,038
2024-12-27 2024-12-24
US Zymeworks Inc (ZYME)
B Purchase
11,958 +0.1%
14.12
USD 168,896 		11,958 +0.1% 14.12 USD 168,896
2024-11-08 2024-11-07
S Sale
1,143,124 -9.7%
2.92
USD 3,334,607 		1,143,124 -9.7% 2.92 USD 3,334,607
2024-11-08 2024-11-07
S Sale
62,318 -0.5%
3.29
USD 205,113 		62,318 -0.5% 3.29 USD 205,113
2024-11-08 2024-11-06
S Sale
1,494,558 -11.2%
3.28
USD 4,896,023 		1,494,558 -11.2% 3.28 USD 4,896,023
2024-08-16 2024-08-14
B Purchase
273,972 +3.6%
36.50
USD 9,999,978 		273,972 +3.6% 36.50 USD 9,999,978
2023-06-21 2023-06-16
US Zymeworks Inc (ZYME)
B Purchase
3,350,000 +33.2%
8.12
USD 27,202,000 		3,350,000 +33.2% 8.12 USD 27,202,000
2023-03-30 2023-03-28
US Zymeworks Inc (ZYME)
B Purchase
200,000 +2.0%
8.00
USD 1,600,000 		200,000 +2.0% 8.00 USD 1,600,000
2023-01-23 2023-01-20
US Zymeworks Inc (ZYME)
B Purchase
163,400 +1.7%
9.88
USD 1,615,095 		163,400 +1.7% 9.88 USD 1,615,095
2023-01-23 2023-01-19
US Zymeworks Inc (ZYME)
B Purchase
144,100 +1.5%
9.49
USD 1,367,639 		144,100 +1.5% 9.49 USD 1,367,639
2023-01-18 2023-01-18
US Zymeworks Inc (ZYME)
B Purchase
203,000 +2.2%
10.00
USD 2,029,046 		203,000 +2.2% 10.00 USD 2,029,046
2023-01-18 2023-01-17
US Zymeworks Inc (ZYME)
B Purchase
440,000 +4.9%
9.80
USD 4,313,848 		440,000 +4.9% 9.80 USD 4,313,848
2023-01-18 2023-01-13
US Zymeworks Inc (ZYME)
B Purchase
342,100 +4.0%
9.81
USD 3,354,633 		342,100 +4.0% 9.81 USD 3,354,633
2023-01-12 2023-01-11
US Zymeworks Inc (ZYME)
B Purchase
106,300 +1.3%
7.87
USD 836,911 		106,300 +1.3% 7.87 USD 836,911
2023-01-11 2023-01-11
S Sale
110,000 -2.8%
8.50
USD 934,615 		110,000 -2.8% 8.50 USD 934,615
2023-01-12 2023-01-10
US Zymeworks Inc (ZYME)
B Purchase
920,000 +12.2%
7.65
USD 7,037,172 		920,000 +12.2% 7.65 USD 7,037,172
2023-01-11 2023-01-10
S Sale
336,400 -7.8%
8.05
USD 2,709,433 		336,400 -7.8% 8.05 USD 2,709,433
2023-01-11 2023-01-09
S Sale
456,000 -9.6%
7.67
USD 3,498,295 		456,000 -9.6% 7.67 USD 3,498,295
2022-06-23 2022-06-23
B Purchase
376,000 +8.6%
5.66
USD 2,126,543 		376,000 +8.6% 5.66 USD 2,126,543
2022-06-23 2022-06-21
B Purchase
101,400 +2.4%
5.28
USD 535,504 		101,400 +2.4% 5.28 USD 535,504
2022-05-09 2022-05-05
S Sale
668,237 -8.2%
21.63
USD 14,453,966 		668,237 -8.2% 21.63 USD 14,453,966
2022-05-09 2022-05-05
B Purchase
668,237 +9.8%
21.63
USD 14,453,966 		668,237 +9.8% 21.63 USD 14,453,966
2022-05-09 2022-05-05
S Sale
1,062,736 -8.4%
29.02
USD 30,840,599 		1,062,736 -8.4% 29.02 USD 30,840,599
2022-05-09 2022-05-05
B Purchase
1,062,736 +10.1%
29.02
USD 30,840,599 		1,062,736 +10.1% 29.02 USD 30,840,599
2022-01-12 2022-01-12
B Purchase
300,000 +2.7%
37.50
USD 11,250,300 		300,000 +2.7% 37.50 USD 11,250,300
2021-12-10 2021-12-10
S Sale
545,000 -100.0%
1.55
USD 847,421 		545,000 -100.0% 1.55 USD 847,421
2021-12-10 2021-12-10
S Sale
5,000,000 -90.2%
1.66
USD 8,300,000 		5,000,000 -90.2% 1.66 USD 8,300,000
2021-12-10 2021-12-09
S Sale
156,669 -2.7%
1.82
USD 284,981 		156,669 -2.7% 1.82 USD 284,981
2021-12-10 2021-12-01
S Sale
185,941 -3.2%
1.66
USD 308,662 		185,941 -3.2% 1.66 USD 308,662
2021-12-10 2021-12-01
B Purchase
185,941 +3.4%
1.66
USD 308,662 		185,941 +3.4% 1.66 USD 308,662
2021-10-01 2021-10-01
S Sale
2,000,000 -96.1%
4.96
USD 9,928,800 		2,000,000 -96.1% 4.96 USD 9,928,800
2021-10-01 2021-09-30
S Sale
3,000,000 -59.0%
5.04
USD 15,131,100 		3,000,000 -59.0% 5.04 USD 15,131,100
2021-05-04 2021-05-04
B Purchase
165,000 +2.2%
23.25
USD 3,835,755 		165,000 +2.2% 23.25 USD 3,835,755
2021-05-04 2021-05-03
B Purchase
20,800 +0.3%
23.31
USD 484,873 		20,800 +0.3% 23.31 USD 484,873
2021-05-04 2021-04-30
B Purchase
35,700 +0.5%
23.16
USD 826,816 		35,700 +0.5% 23.16 USD 826,816
2021-03-25 2021-03-24
B Purchase
875,000 +8.6%
20.75
USD 18,156,250 		875,000 +8.6% 20.75 USD 18,156,250
2021-03-10 2021-03-09
B Purchase
531,000 +8.0%
18.70
USD 9,928,426 		531,000 +8.0% 18.70 USD 9,928,426
2021-03-10 2021-03-08
B Purchase
2,777,800 +72.3%
18.97
USD 52,694,310 		2,777,800 +72.3% 18.97 USD 52,694,310
2021-02-25 2021-02-24
B Purchase
10,800 +0.1%
22.02
USD 237,867 		10,800 +0.1% 22.02 USD 237,867
2021-02-25 2021-02-23
B Purchase
29,500 +0.8%
25.48
USD 751,657 		29,500 +0.8% 25.48 USD 751,657
2021-02-25 2021-02-23
B Purchase
44,400 +0.4%
21.05
USD 934,518 		44,400 +0.4% 21.05 USD 934,518
2021-02-22 2021-02-18
B Purchase
44,100 +0.4%
3.68
USD 162,103 		44,100 +0.4% 3.68 USD 162,103
2021-02-17 2021-02-17
B Purchase
198,840 +2.0%
23.46
USD 4,665,542 		198,840 +2.0% 23.46 USD 4,665,542
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