MetaCap

Zymeworks Insider Trades

NASDAQ: ZYMEHealth CareBiotechnology: Pharmaceutical PreparationsUSD

25.79+0.53 (+2.10%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
10 · $4.67M
Shares bought / sold
0 / 187.93K
Net activity
Net selling $4.7 million

Zymeworks insider activity

Over the last 12 months, Zymeworks insiders reported 22 transactions on SEC Form 4: 0 open-market purchases and 10 sales. Insiders bought $0 and sold $4.7 million worth of stock, for net insider selling of $4.7 million. The largest seller was Galbraith Kenneth, with $3.3 million in reported sales.

The most recent filing shows Hollywood Mark (EVP & Chief Operating Officer) reporting a transaction in 939 shares at $22.22 on Jul 6, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put ZYME's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

ZYME insider transactions

Zymeworks insider transactions
DateInsiderTypeSharesValueFiling
Jul 6, 2026Hollywood MarkEVP & Chief Operating OfficerAward939$20.86KForm 4
Jan 12, 2026Moore Paul AndrewChief Scientific OfficerSale9,560$216.76KForm 4
Jan 12, 2026Moore Paul AndrewChief Scientific OfficerOption exercise17,666—Form 4
Jan 12, 2026Galbraith KennethChair & CEOSale30,424$689.82KForm 4
Jan 12, 2026Galbraith KennethChair & CEOOption exercise64,000—Form 4
Jan 12, 2026Smith Jeffrey T LEVP & Chief Medical OfficerSale9,310$211.09KForm 4
Jan 12, 2026Smith Jeffrey T LEVP & Chief Medical OfficerOption exercise17,666—Form 4
Jan 12, 2026Hollywood MarkEVP & Chief Operating OfficerSale6,120$138.76KForm 4
Jan 12, 2026Hollywood MarkEVP & Chief Operating OfficerOption exercise17,666—Form 4
Jan 6, 2026PATTERSON LEONE DEVP, Chief Bus & Fin OfficerAward459$4.84KForm 4
Jan 5, 2026Moore Paul AndrewChief Scientific OfficerSale10,821$271.57KForm 4
Jan 5, 2026Moore Paul AndrewChief Scientific OfficerOption exercise20,000—Form 4
Jan 5, 2026Moore Paul AndrewChief Scientific OfficerSale9,289$233.13KForm 4
Jan 5, 2026Moore Paul AndrewChief Scientific OfficerOption exercise17,168—Form 4
Jan 5, 2026Galbraith KennethChair & CEOSale31,686$795.22KForm 4
Jan 5, 2026Galbraith KennethChair & CEOOption exercise66,666—Form 4
Jan 5, 2026Galbraith KennethChair & CEOSale22,657$568.62KForm 4
Jan 5, 2026Galbraith KennethChair & CEOOption exercise47,668—Form 4
Jan 5, 2026Smith Jeffrey T LEVP & Chief Medical OfficerSale10,538$264.47KForm 4
Jan 5, 2026Smith Jeffrey T LEVP & Chief Medical OfficerOption exercise20,000—Form 4
Dec 22, 2025Galbraith KennethChair & CEOSale47,528$1.28MForm 4
Dec 22, 2025Galbraith KennethChair & CEOOption exercise100,000—Form 4
Aug 12, 2025Ciongoli Gregory AustinDirectorAward415,000$4.99MForm 4
Jun 26, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorTax withholding41$521.11Form 4
Jun 26, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorOption exercise5,086,480$508.65Form 4
May 19, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy5,919$69.74KForm 4
May 15, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy49,502$565.85KForm 4
Apr 17, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy54,760$630.82KForm 4
Apr 16, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy73,953$825.59KForm 4
Apr 4, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy196,438$2.19MForm 4
Apr 3, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy120,770$1.43MForm 4
Apr 2, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy74,360$881.02KForm 4
Apr 1, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy48,658$564.65KForm 4
Mar 31, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy4,397$51.66KForm 4
Mar 26, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy43,848$536.86KForm 4
Mar 25, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy53,501$690.45KForm 4
Mar 24, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy22,689$296.85KForm 4
Mar 21, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy31,033$396.52KForm 4
Mar 20, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy73,476$949.88KForm 4
Mar 19, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy58,306$737.23KForm 4
Mar 18, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy113,880$1.44MForm 4
Mar 17, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy56,277$688.46KForm 4
Mar 13, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy468,356$5.85MForm 4
Mar 12, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy292,934$3.59MForm 4
Mar 11, 2025EcoR1 Capital, LLC & NODELMAN OLEGDirectorBuy320,690$3.69MForm 4
Jan 17, 2025EcoR1 Capital, LLCDirectorBuy19,748$274.00KForm 4
Jan 16, 2025EcoR1 Capital, LLCDirectorBuy121,681$1.69MForm 4
Jan 15, 2025EcoR1 Capital, LLCDirectorBuy39,029$546.67KForm 4
Jan 14, 2025EcoR1 Capital, LLCDirectorBuy54,500$739.27KForm 4
Jan 13, 2025EcoR1 Capital, LLCDirectorBuy74,125$992.87KForm 4
Jan 10, 2025EcoR1 Capital, LLCDirectorBuy204,098$2.68MForm 4
Jan 8, 2025EcoR1 Capital, LLCDirectorBuy21,021$295.83KForm 4
Jan 6, 2025Moore Paul AndrewChief Scientific OfficerSale11,408$170.25KForm 4
Jan 6, 2025Moore Paul AndrewChief Scientific OfficerOption exercise20,000—Form 4
Jan 6, 2025Moore Paul AndrewChief Scientific OfficerSale9,792$146.14KForm 4
Jan 6, 2025Moore Paul AndrewChief Scientific OfficerOption exercise17,166—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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