Zymeworks Ownership & Insider Activity

Zymeworks (ZYME) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 2.0% of shares outstanding. Institutional investors hold 32.3%.

Shares Outstanding

71.900M

Shares Float

46.708M

Insider Shares Owned

1.418M

Insider % Owned

2.0%

Institutional Shares Held

23.151M

Institutional % Held

32.3%

Ownership Breakdown

Net Insider Activity by Month

Zymeworks Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 9, 2026	Adam Schayowitz	EVP, HEAD R&D	SELL-OPTIONS	23.205K	$25.85	$358K