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Galbraith Kenneth's Form 4 filing

Zymeworks Inc.ZYME · filed Dec 22, 2025

Accession no.
0001193125-25-329028
Filed
Dec 22, 2025
Trade date
Dec 22, 2025
Filing delay
Same day
Rule 10b5-1 plan
Not checked

This filing lists 2 non-derivative transactions and 1 derivative transaction. Open-market sales total $1.28M. It was filed on the trade date.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Galbraith KennethCIK 0001567045Director, Officer (Chair & CEO)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Dec 22, 2025Common StockMOption exerciseAcquired+100,000$0.00F1$0180,803Direct
Dec 22, 2025Common StockSSaleDisposed−47,528$27.02F3−$1,284,206.56133,275Direct

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
Dec 22, 2025Common StockMOption exerciseDisposed−100,000$0.00$00Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F1

Represents shares of common stock issued upon vesting of restricted stock units ("RSUs") granted on December 22, 2022.

Referenced by the price of 1 transaction in Table I.

F3

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.83 to $27.16 inclusive. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.

Referenced by the price of 1 transaction in Table I.

Read the full filing on SEC EDGAR (opens in a new tab)