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sellModerate

Kenneth Galbraith sold $855k of ZYME

Chair & CEO at Zymeworks Inc.. 57,291 shares at an average of $14.92, traded Jan 6, 2025, filed Jan 6, 2025.

Warning score
53
Value
$855k
57,291 shares
Holdings after
80,803
-80% from before
From 52-week low
+20%
low $12.10, close $14.46
From 52-week high
-17%
high $17.40, as of Jan 6, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $855k at market
    +23
  • Share of holdings sold
    Sold 80% of holdings
    +20
  • Cluster
    No other insider selling within 14 days
    0
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +3.4%, 3m -27.9%, 6m -9.5%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ZYMEOct 13, 2026 · close 25.07
Since filing Jan 6, 2025: +73.4%SPY +33.2% · excess +40.1%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0000950170-25-002497, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 6, 2025MOption exercise
Common Stock
+47,666$0.00$071,428Jan 6, 2025
Jan 6, 2025SOpen-market sale
Common Stock
-23,885$14.92$356k47,543Jan 6, 2025
Jan 6, 2025MOption exercise
Common Stock
+66,666$0.00$0114,209Jan 6, 2025
Jan 6, 2025SOpen-market sale
Common Stock
-33,406$14.92$499k80,803Jan 6, 2025
Jan 6, 2025MOption exercise
Restricted Stock Unitderivative
-47,666$0.00$047,668Jan 6, 2025
Jan 6, 2025MOption exercise
Restricted Stock Unitderivative
-66,666$0.00$0133,334Jan 6, 2025

Related signals

Other insiders at Zymeworks Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 16, 2026
ZYMEsell
Zymeworks Inc.
Adam Schayowitz
EVP, Head of R&D
$358k
13,832 shares
-37%
31Weak
ZYMEsell 4
Zymeworks Inc.
Mark Hollywood
EVP & Chief Operating Officer
$139k
6,120 shares
-4%
51Moderate
ZYMEsell 4
Zymeworks Inc.
Kenneth Galbraith
Chair & CEO
$690k
30,424 shares
-12%
32Weak
ZYMEsell 4
Zymeworks Inc.
Paul Andrew Moore
Chief Scientific Officer
$217k
9,560 shares
-16%
37Weak
ZYMEsell 4
Zymeworks Inc.
Jeffrey T L Smith
EVP & Chief Medical Officer
$211k
9,310 shares
-26%
60Notable
ZYMEsell 4
Zymeworks Inc.
Kenneth Galbraith
Chair & CEO
$1.4M
54,343 shares
-30%
43Moderate
ZYMEsell 4
Zymeworks Inc.
Paul Andrew Moore
Chief Scientific Officer
$505k
20,110 shares
-50%
38Weak
ZYMEsell 4
Zymeworks Inc.
Jeffrey T L Smith
EVP & Chief Medical Officer
$264k
10,538 shares
-36%
60Notable
ZYMEsell 3
Zymeworks Inc.
Kenneth Galbraith
Chair & CEO
$1.3M
47,528 shares
-26%
43Moderate
ZYMEbuy
Zymeworks Inc.
EcoR1 Capital, LLC
director, owner
$636k
55,421 shares
+0%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Kenneth Galbraith sold $855k of ZYME | InsiderTell