Reporting owner · CIK 0002127119
Schayowitz Adam
Visual SEC Form 4 history across 1 companies, 3 transactions and 1 filings.
EVP, HR, DEVP, Head of R&DZymeworks Inc.
Open-market mix
0%buys
Latest insider transactions
Form 4 filings from available history.
| ID | Ticker | Insider | Role | Type | Shares | Value | Code | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|
| #241811 | ZYME | Schayowitz Adam | EVPHRD | exercise | 37.0k | $0 | M | 10/09 | 10/09 |
| #241810 | ZYME | Schayowitz Adam | EVPHRD | sale | 13.8k | -$357k | S | 10/09 | 10/09 |
| #241809 | ZYME | Schayowitz Adam | EVPHRD | exercise | 37.0k | $0 | M | 10/09 | 10/09 |
Latest Form 4 facts
Quick context from source filings
Latest buy
No open-market insider purchase is available.
Monthly open-market activity
Reported purchase and sale transaction counts
Buys Sells
Net value flow
Buys minus sells
Oct 26
−$357.6K
Transaction texture
Ownership and ticket size
Average P/S size$357.6K
Median P/S size$357.6K
Direct3
Indirect0
Oct 09, 2026exercise
Filing-only signals
Deterministic matches in this insider's history
Associated companies
Visual map of known reporting history
Open-market buy performance
90-day forward return on this insider's open-market purchases
Forward return is not available yet
We compute this from each buy's stock performance 90 days after the transaction. The price history is still being populated for this insider's their open-market buys, so the average and median will appear here once the daily price refresh has covered the relevant trading days.
Disclosed ownership
How reported shareholdings evolved
Non-derivative shares held after reported transactions—not stock prices or a complete portfolio.
2 observations · Oct 9, 2026 – Oct 9, 2026. Window ends at the latest available report, not today.
Selected observation · Oct 9, 202623,205 shares reported
Inspect transaction View exact observations and source transactions
| Transaction date | Shares held after | Filed | Source |
|---|---|---|---|
| Oct 9, 2026 | 37,037 | Oct 9, 2026 | View transaction |
| Oct 9, 2026 | 23,205 | Oct 9, 2026 | View transaction |
Securities and direct/indirect ownership contexts are kept separate and never summed. Joint filings may associate the same disclosed row with multiple owners. Unknown values are omitted, not treated as zero. Lines connect observations for readability; they do not establish holdings between filings, cost basis, or current ownership. Amendments and stock splits require reviewing the source.
Schayowitz Adam Insider Activity FAQ
SEC Form 4 context
Who is Schayowitz Adam?
Schayowitz Adam is a reporting owner in SEC Form 4 filings with reporting owner CIK 0002127119.
Which companies has Schayowitz Adam reported transactions for?
Zymeworks Inc.
When was Schayowitz Adam's latest insider buy?
No open-market insider purchase is available for this period.
When was Schayowitz Adam's latest insider sale?
sale at Zymeworks Inc. on Oct 09, 2026 valued at $357,557.
Where can I see the original SEC filings?
Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.
Are performance metrics included?
This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.