TZIANABOS ARTHUR
Insider transactions at 3 companies
This page shows all SEC Form 4 filings attributed to TZIANABOS ARTHUR. 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 |
|---|---|---|---|---|---|---|
| QTTB | Sale | 265 | $24.20 | $6,413 | Mar 25, 2024 | |
| STOK | Option Exercise | 31,739 | $2.19 | $69,508 | Feb 13, 2024 | |
| QTTB | Sale | 13,037 | $0.57 | $7,431 | Jan 1, 2024 | |
| QTTB | Sale | 10,616 | $1.39 | $14,756 | Jan 9, 2023 | |
| QTTB | Option Exercise | 19,140 | — | — | Jan 1, 2023 | |
| 0001722271 | U | 26,930 | — | — | Nov 30, 2022 | |
| QTTB | President & CEO | Sale | 5,354 | $3.78 | $20,238 | Jan 1, 2022 |
| STOK | Sale | 10,000 | $60.67 | $606,700 | Feb 19, 2021 | |
| STOK | Sale | 210 | $47.61 | $9,998 | Nov 23, 2020 | |
| QTTB | President & CEO | Sale | 12,500 | $16.16 | $202,000 | Feb 3, 2020 |
| QTTB | President & CEO | Sale | 12,500 | $20.50 | $256,250 | Jan 2, 2020 |
| QTTB | President & CEO | Sale | 12,500 | $16.04 | $200,500 | Dec 2, 2019 |
| QTTB | President & CEO | Sale | 12,400 | $17.39 | $215,636 | Oct 1, 2019 |
| QTTB | President & CEO | Sale | 12,500 | $18.75 | $234,375 | Sep 3, 2019 |
| QTTB | President & CEO | Sale | 12,500 | $17.37 | $217,125 | Aug 1, 2019 |
| QTTB | President & CEO | Sale | 12,500 | $18.98 | $237,250 | Jul 1, 2019 |
| QTTB | President & CEO | Sale | 12,500 | $19.86 | $248,250 | Jun 3, 2019 |
| 0001385228 | Option Exercise | 15,000 | $0.44 | $6,600 | Aug 26, 2016 | |
| TPST | President and CSO | Award / Grant | 25,000 | — | — | Dec 3, 2015 |
| TPST | President and CSO | Purchase | 225 | $28.77 | $6,473 | Apr 9, 2015 |
| TPST | President and CSO | Purchase | 175 | $28.04 | $4,907 | Apr 8, 2015 |
| TPST | Chief Scientific Officer | Purchase | 1,000 | $10.32 | $10,320 | Sep 12, 2013 |