Monitor future Form 4 filings for actual transactions; the power of attorney simplifies compliance but does not indicate imminent buying or selling. Vesting schedule suggests incremental share releases starting late 2026.
Price Chart
Executive Summary
Scott Platshon, EVP and Chief Business Officer of Zymeworks, filed a Form 3 disclosing initial beneficial ownership and granting a power of attorney to Catherine Graham and Wilson Sonsini to file required Section 16 reports on his behalf. The filing reveals no current holdings but includes previously granted stock options and RSUs.
Key Facts
- Scott Platshon is EVP, Chief Business Officer of Zymeworks
- Filed Form 3 to report initial beneficial ownership
- Granted power of attorney to Catherine Graham and Wilson Sonsini attorneys to file Section 16 forms
- Currently holds no beneficially owned securities
- Has stock options for 167,000 shares at $22.99, granted Nov 18, 2025, vesting 25% annually
- Has 111,111 RSUs granted Nov 18, 2025, vesting in three equal annual installments starting Nov 18, 2026
Financial Impact
No immediate financial impact; potential future dilution of approximately 0.28% of market cap ($5.6M) upon full vesting of options and RSUs
Risk Factors
- Future insider selling could create downward pressure
- Lack of current ownership may signal misalignment with shareholders
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 3 Filing (Primary) | 0001193125-26-151232 |
| Document: 0001193125-26-151232-index-headers.html | 0001193125-26-151232 |
| Document: 0001193125-26-151232-index.html | 0001193125-26-151232 |
| Document: 0001193125-26-151232.txt | 0001193125-26-151232 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 25, 2026 5w ago | 8-K | $27.47 $27.50 | ▲ +0.11% | ▼ −0.87% | $25.15 (−8.45%) |
Jul 16, 2026 11w ago | Press Release | $24.19 $25.76 | ▼ −6.49% | ▼ −2.87% | $25.15 (−3.97%) |
Jun 29, 2026 13w ago | Press Release | $24.10 $22.86 | ▼ −5.15% | ▼ −4.87% | $25.15 (+4.36%) |
Jun 14, 2026 15w ago | Press Release | $23.26 $24.94 | ▲ +7.22% | ▲ +7.97% | $25.15 (+8.13%) |
May 15, 2026 20w ago | 3 | $24.43 $22.49 | ▼ −7.94% | ▼ −9.52% | $25.15 (+2.95%) |
Apr 21, 2026 23w ago | Press Release | $28.53 $24.40 | ▼ −14.48% | ▼ −17.64% | $25.15 (−11.85%) |
Apr 17, 2026 24w ago | Press Release | $27.80 $23.96 | ▼ −13.81% | ▼ −19.18% | $25.15 (−9.53%) |
Apr 16, 2026 24w ago | Press Release | $27.20 $24.57 | ▼ −9.67% | ▼ −15.48% | $25.15 (−7.54%) |
Apr 10, 2026 25w ago | 3 | $26.17 $24.03 | ▼ −8.18% | ▼ −15.91% | $25.15 (−3.90%) |
Mar 17, 2026 28w ago | Press Release | $23.45 $27.20 | ▲ +15.99% | ▲ +9.94% | $25.15 (+7.25%) |
US Market Status
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