Transaction · 0002127119-26-000006

Schayowitz Adam

Schayowitz Adam, EVP, HR, D, reported an open-market or private sale at Zymeworks Inc. involving 13832.000000 shares for an estimated $357557.20. Reported holdings after the transaction were 23205.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SEVP, HR, D
ZYMEZymeworks Inc.
Filing timeOct 09
Trade dateOct 09, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded37.35%Shares sold ÷ (holdings after + shares sold). Estimated position before: 37,037 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$27.87
Pre-filing
1mo ago +0.0%1w ago +0.0%1d ago +0.0%
Returns since
7d30d90d180d1y

ZYME price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
ZYME since 2026-10-09Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0002127119-26-000006
Common Stock
Transaction date
Oct 09, 2026
Filed Oct 09, 2026, 10:28 PM · 0d delay
Shares
13.8k sh
$25.85 per share
Estimated value
-$357k
Computed from shares × price
Holdings after
23.2k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Large Holdings Reduction
+10score
Filing-only score

+10

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

EVP, Head of R&D

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Represents shares of common stock issued upon vesting of one third of the restricted stock units ("RSUs") granted on October 9, 2025.

  2. F2

    Represents shares of common stock sold to cover tax withholding obligations and other applicable fees in connection with the vesting of RSUs pursuant to mandatory "sell to cover" provisions contained…

  3. F3

    The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $25.85 to $25.88, inclusive. Upon request by the Commission staff, the…

  4. F4

    Each RSU represents the contingent right to receive, upon vesting of the RSU, one share of common stock.

  5. F5

    Restricted stock units ("RSUs") granted October 9, 2025; vest in three equal annual installments beginning October 9, 2026.

Original filing · 0002127119-26-000006
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Same reporting owner
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