ZYME insider trading — Zymeworks Inc.
Over the last 90 days, insiders at Zymeworks Inc. (ZYME) made 0 open-market purchases worth $0 and 1 open-market sale worth $358K, making them net sellers by $358K. The largest sale was by Schayowitz Adam (EVP, Head of R&D), who sold 13,832 shares for $358K on Oct 9, 2026.
Updated Oct 16, 2026.
Recent ZYME insider transactions
Every Form 4 filed by Zymeworks Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | Schayowitz Adam | EVP, Head of R&D | M · Option exercise | Direct | 37,037 | — | — | Form 4 |
| Oct 9, 2026 | Schayowitz Adam | EVP, Head of R&D | S · Sale | Direct | 13,832 | $25.85 | $358K | Form 4 |
ZYME insider trading FAQ
Are insiders buying ZYME stock?
Not on the open market. In the last 90 days, Zymeworks Inc. insiders made no open-market purchases, and 1 open-market sale totaling $358K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading ZYME?
Recent sellers: Schayowitz Adam.
Where does ZYME insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.