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Zymeworks Inc. (ZYME)

Zymeworks Inc. (ZYME) Insider Trading

Directors, officers and holders of more than 10% of ZYME report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 144 transactions on file: 0 with code P, 5 with code S and 45 with other codes.

DateInsiderCodeShares
Oct 9, 2026Schayowitz AdamM Exercise37,037
Oct 9, 2026Schayowitz AdamS Sale13,832
Oct 9, 2026Schayowitz AdamM Exercise37,037
Jul 6, 2026Hollywood MarkA Award939
May 13, 2026Schneider Paul RA Award178,000
May 13, 2026Schneider Paul RA Award119,000
Apr 9, 2026Platshon ScottA Award47,000
Apr 9, 2026Schayowitz AdamA Award76,000
Apr 9, 2026Platshon ScottA Award76,000
Apr 9, 2026Schayowitz AdamA Award70,000
Apr 9, 2026Schayowitz AdamA Award47,000
Apr 9, 2026Platshon ScottA Award70,000
Apr 6, 2026Stafford KristinA Award178,000
Apr 6, 2026Stafford KristinA Award50,000
Apr 6, 2026Stafford KristinA Award119,000
Jan 12, 2026Cesano AlessandraA Award7,700
Jan 12, 2026Moore Paul AndrewS Sale9,560
Jan 12, 2026Campoy CarlosA Award7,700
Jan 12, 2026Moore Paul AndrewA Award70,000
Jan 12, 2026Moore Paul AndrewM Exercise17,666
Jan 12, 2026Hollywood MarkM Exercise17,666
Jan 12, 2026Galbraith KennethM Exercise64,000
Jan 12, 2026Mahony SusanA Award7,700
Jan 12, 2026Moore Paul AndrewA Award47,000
Jan 12, 2026Hollywood MarkS Sale6,120
Jan 12, 2026Moore Paul AndrewM Exercise17,666
Jan 12, 2026Galbraith KennethA Award216,000
Jan 12, 2026Campoy CarlosA Award11,500
Jan 12, 2026Hollywood MarkM Exercise17,666
Jan 12, 2026Landry Robert EA Award7,700
Jan 12, 2026Hollywood MarkA Award66,000
Jan 12, 2026Neu KelvinA Award11,500
Jan 12, 2026Galbraith KennethA Award144,000
Jan 12, 2026Smith Jeffrey T LS Sale9,310
Jan 12, 2026Cherry Brian NA Award23,000
Jan 12, 2026Smith Jeffrey T LM Exercise17,666
Jan 12, 2026Cherry Brian NA Award15,400
Jan 12, 2026Galbraith KennethS Sale30,424
Jan 12, 2026Cesano AlessandraA Award11,500
Jan 12, 2026Ciongoli Gregory AustinA Award11,500
Jan 12, 2026Smith Jeffrey T LM Exercise17,666
Jan 12, 2026Ciongoli Gregory AustinA Award7,700
Jan 12, 2026Neu KelvinA Award7,700
Jan 12, 2026Hollywood MarkA Award47,000
Jan 12, 2026Hollywood MarkA Award70,000
Jan 12, 2026Landry Robert EA Award11,500
Jan 12, 2026Galbraith KennethM Exercise64,000
Jan 12, 2026Moore Paul AndrewA Award66,000
Jan 12, 2026Mahony SusanA Award11,500
Jan 12, 2026Galbraith KennethA Award222,000

The full Form 4 history is on the ZYME company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.