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CIK 0001937653 · Non-accelerated filer<br>Smaller reporting company

Zymeworks Inc.

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Ticker
ZYME
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
883099146
Phone
302-274-8744
Business address
108 PATRIOT DRIVE, SUITE A, MIDDLETOWN, DE, 19709
Former names
Zymeworks Delaware Inc.
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$357,557
in 1 filing

Net −$357,557. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Schayowitz Adam −$358K EVP, Head of R&D sold 37% of stake
Date Insider Transaction Shares Price Value Owned after
2026-01-12 Moore Paul Andrew Chief Scientific Officer Option exercise · Restricted Stock Unit −17,666 35,334
2026-01-12 Moore Paul Andrew Chief Scientific Officer Grant or award · Stock Option (Right to Buy) +70,000 70,000
2026-01-12 Moore Paul Andrew Chief Scientific Officer Grant or award · Restricted Stock Unit +47,000 47,000
2026-01-12 Moore Paul Andrew Chief Scientific Officer Grant or award · Performance Stock Unit +66,000 66,000
2026-01-12 Galbraith Kenneth Chair & CEO Option exercise +64,000 257,266
2026-01-12 Galbraith Kenneth Chair & CEO Sale −30,424 $22.67 $690K 226,842
2026-01-12 Galbraith Kenneth Chair & CEO Option exercise · Restricted Stock Unit −64,000 128,000
2026-01-12 Galbraith Kenneth Chair & CEO Grant or award · Stock Option (Right to Buy) +216,000 216,000
2026-01-12 Galbraith Kenneth Chair & CEO Grant or award · Restricted Stock Unit +144,000 144,000
2026-01-12 Galbraith Kenneth Chair & CEO Grant or award · Performance Stock Unit +222,000 222,000
2026-01-06 PATTERSON LEONE D EVP, Chief Bus & Fin Officer Grant or award +459 $10.55 $5K 459
2026-01-05 Smith Jeffrey T L EVP & Chief Medical Officer Option exercise +20,000 28,890
2026-01-05 Smith Jeffrey T L EVP & Chief Medical Officer Sale −10,538 $25.10 $264K 18,352
2026-01-05 Smith Jeffrey T L EVP & Chief Medical Officer Option exercise · Restricted Stock Unit −20,000 20,000
2026-01-05 Galbraith Kenneth Chair & CEO Option exercise +47,668 180,943
2026-01-05 Galbraith Kenneth Chair & CEO Sale −22,657 $25.10 $569K 158,286
2026-01-05 Galbraith Kenneth Chair & CEO Option exercise +66,666 224,952
2026-01-05 Galbraith Kenneth Chair & CEO Sale −31,686 $25.10 $795K 193,266
2026-01-05 Galbraith Kenneth Chair & CEO Option exercise · Restricted Stock Unit −47,668 0
2026-01-05 Galbraith Kenneth Chair & CEO Option exercise · Restricted Stock Unit −66,666 66,668

Page 3 of 12 · 224 trades