GALBRAITH KENNETH

PrivateCIK: 1567045
Location

SURREY, A1

GALBRAITH KENNETH (Chair & CEO) sold 26.3% of their position (47.53K shares) of ZYMEWORKS INC. on the open market

Open‑market sale worth $1.28M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderGALBRAITH KENNETHCIK 1567045
IssuerZYMEWORKS INC.CIK 1937653
DirectorOfficer· Chair & CEO
Since Dec 2022
-47.53K
Net shares
Net seller
$1.28M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
100K acquired · 147.53K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+100K

Price / share

Trade value

% of position

123.8%
12/22/2025
80.80K180.80K

Common Stock

Direct
S · Sale

Shares

47.53K

Price / share

$27.02

Trade value

$1.28M

% of position

26.3%
12/22/2025
180.80K133.28K
Total

Net shares

+52.47K

Net value

-$1.28M

Derivative Transactions1

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

100K shares

Shares

100K

Strike price

Held after

0.00

Exercisable

12/22/2025
GALBRAITH KENNETH — Insider Transaction (Form 4) Filed Dec 22, 2025 | Finecho