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ZYMEWORKS INC (ZYME) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:ZYME - US98985Y1082 - Common Stock

26.74 USD
-0.13 (-0.48%)
Last: 12/29/2025, 6:24:26 PM
26.74 USD
0 (0%)
After Hours: 12/29/2025, 6:24:26 PM
ZYME Ownership Chart.ZYME Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ZYME Ownership.InsiderInstitutionalPublic



Shares Outstanding74.84M
Float72.14M
Float Short Interest Percentage7.78%
Owners (insider)0.7%
Owners (institutional)97.16%
Owners (insider) change11.7%
Owners (institutional) change-2.37%
ZYME Institutional Ownership HistoryZYME Institutional Ownership HistoryZYME Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 20M 40M 60M
ZYME Historical Insider Transactions ChartZYME Historical Insider Buy and Sell Transactions ChartZYME Historical Insider Transactions Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 0 2M 4M 6M 8M 10M
Date Name Type Shares Price Amount
Dec 22, 2025 Galbraith Kenneth Option Excercise 100000 0.00 $ 0.00
Dec 22, 2025 Galbraith Kenneth Open Market Sale 47528 27.02 $ 1,284,311.12
Aug 12, 2025 Ciongoli Gregory Austin Grant 415000 12.02 $ 4,988,300.00
Jun 26, 2025 EcoR1 Capital, LLC Other Aquisition 5086480 0.00 $ 508.65
Jun 26, 2025 NODELMAN OLEG Other Aquisition 5086480 0.00 $ 508.65
Jun 26, 2025 EcoR1 Capital, LLC Option Excercise 41 12.71 $ 521.11
Jun 26, 2025 NODELMAN OLEG Option Excercise 41 12.71 $ 521.11
May 15, 2025 EcoR1 Capital, LLC Open Market Purchase 55421 11.47 $ 635,585.71
May 15, 2025 NODELMAN OLEG Open Market Purchase 55421 11.47 $ 635,585.71
Apr 16, 2025 EcoR1 Capital, LLC Open Market Purchase 128713 11.32 $ 1,456,407.88
Apr 16, 2025 NODELMAN OLEG Open Market Purchase 128713 11.32 $ 1,456,407.88
Apr 3, 2025 NODELMAN OLEG Open Market Purchase 317208 11.42 $ 3,623,970.36
Apr 3, 2025 EcoR1 Capital, LLC Open Market Purchase 317208 11.42 $ 3,623,970.36
Mar 31, 2025 EcoR1 Capital, LLC Open Market Purchase 127415 11.75 $ 1,497,322.33
Mar 31, 2025 NODELMAN OLEG Open Market Purchase 127415 11.75 $ 1,497,322.33
Mar 25, 2025 EcoR1 Capital, LLC Open Market Purchase 97349 12.61 $ 1,227,309.18
Mar 25, 2025 NODELMAN OLEG Open Market Purchase 97349 12.61 $ 1,227,309.18
Mar 20, 2025 EcoR1 Capital, LLC Open Market Purchase 127198 12.92 $ 1,643,247.98
Mar 20, 2025 NODELMAN OLEG Open Market Purchase 127198 12.92 $ 1,643,247.98
Mar 17, 2025 EcoR1 Capital, LLC Open Market Purchase 228463 12.55 $ 2,866,552.72
Mar 17, 2025 NODELMAN OLEG Open Market Purchase 228463 12.55 $ 2,866,552.72
Mar 11, 2025 EcoR1 Capital, LLC Open Market Purchase 1081980 12.13 $ 13,120,914.17
Mar 11, 2025 NODELMAN OLEG Open Market Purchase 1081980 12.13 $ 13,120,914.17
Jan 16, 2025 EcoR1 Capital, LLC Open Market Purchase 141429 13.88 $ 1,963,538.26
Jan 13, 2025 EcoR1 Capital, LLC Open Market Purchase 167654 13.59 $ 2,278,811.37
Jan 8, 2025 EcoR1 Capital, LLC Open Market Purchase 225119 13.21 $ 2,974,818.88
Jan 6, 2025 Smith Jeffrey T L Option Excercise 20000 0.00 $ 0.00
Jan 6, 2025 Smith Jeffrey T L Open Market Sale 11110 14.92 $ 165,806.75
Jan 6, 2025 Moore Paul Andrew Option Excercise 37166 0.00 $ 0.00
Jan 6, 2025 Moore Paul Andrew Open Market Sale 21200 14.92 $ 316,390.92
Jan 6, 2025 Galbraith Kenneth Option Excercise 114332 0.00 $ 0.00
Jan 6, 2025 Galbraith Kenneth Open Market Sale 57291 14.92 $ 855,016.61
Dec 31, 2024 EcoR1 Capital, LLC Open Market Purchase 304381 14.68 $ 4,467,849.57