Artavanis-Tsakonas Spyridon
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Artavanis-Tsakonas Spyridon. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| BIIB | EVP, Chief Scientific Officer | Tax Withholding | 459 | $260.54 | $119,588 | Apr 2, 2016 |
| BIIB | SVP, Chief Scientific Officer | Tax Withholding | 48 | $258.99 | $12,432 | Feb 23, 2016 |
| BIIB | SVP, Chief Scientific Officer | Tax Withholding | 240 | $247.22 | $59,333 | Feb 12, 2016 |
| BIIB | SVP, Chief Scientific Officer | Tax Withholding | 460 | $412.44 | $189,722 | Apr 2, 2015 |
| BIIB | SVP, Chief Scientific Officer | Option Exercise | 714 | — | — | Feb 12, 2015 |
| BIIB | SVP, Chief Scientific Officer | Sale | 1,981 | $346.50 | $686,417 | Dec 15, 2014 |
| BIIB | SVP, Chief Scientific Officer | Option Exercise | 975 | — | — | Apr 2, 2014 |
| BIIB | SVP, Chief Scientific Officer | Tax Withholding | 239 | $323.04 | $77,207 | Feb 12, 2014 |