Wallach Sandra
Insider transactions at 2 companies
This page shows all SEC Form 4 filings attributed to Wallach Sandra. 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 |
|---|---|---|---|---|---|---|
| AMPX-WT | Chief Financial Officer | Sale | 28,390 | $6.82 | $193,620 | Aug 21, 2025 |
| AMPX-WT | Chief Financial Officer | Sale | 27,595 | $2.43 | $67,056 | May 21, 2025 |
| AMPX-WT | Chief Financial Officer | Award / Grant | 383,260 | — | — | Mar 19, 2025 |
| AMPX-WT | Chief Financial Officer | Sale | 18,142 | $3.13 | $56,784 | Feb 21, 2025 |
| AMPX-WT | Chief Financial Officer | Sale | 17,158 | $1.96 | $33,630 | Nov 21, 2024 |
| AMPX-WT | Chief Financial Officer | Sale | 17,606 | $1.04 | $18,310 | Aug 21, 2024 |
| AMPX-WT | Chief Financial Officer | Sale | 10,549 | $1.33 | $14,030 | May 22, 2024 |
| AMPX-WT | Chief Financial Officer | Award / Grant | 749,700 | — | — | Mar 19, 2024 |
| INVE | CFO | Award / Grant | 393 | — | — | Aug 2, 2021 |
| INVE | CFO | Tax Withholding | 865 | — | — | Jul 1, 2021 |
| INVE | CFO | Tax Withholding | 70 | — | — | May 5, 2021 |
| INVE | CFO | Tax Withholding | 541 | — | — | Apr 30, 2021 |
| INVE | CFO | Tax Withholding | 861 | — | — | Apr 1, 2021 |
| INVE | CFO | Tax Withholding | 84 | — | — | Mar 2, 2021 |
| INVE | CFO | Tax Withholding | 2,245 | $12.85 | $28,848 | Feb 12, 2021 |
| INVE | CFO | Tax Withholding | 642 | $8.41 | $5,399 | Feb 1, 2021 |
| INVE | CFO | Tax Withholding | 1,946 | $6.72 | $13,077 | Nov 13, 2020 |
| INVE | CFO | Award / Grant | 496 | — | — | Nov 2, 2020 |
| INVE | CFO | Tax Withholding | 1,838 | $6.53 | $12,002 | Oct 30, 2020 |
| INVE | CFO | Tax Withholding | 865 | $6.06 | $5,242 | Oct 1, 2020 |
| INVE | CFO | Tax Withholding | 1,945 | $5.21 | $10,133 | Aug 14, 2020 |
| INVE | CFO | Award / Grant | 626 | — | — | Aug 4, 2020 |
| INVE | CFO | Tax Withholding | 108 | $5.12 | $553 | Jul 31, 2020 |
| INVE | CFO | Tax Withholding | 865 | $4.82 | $4,169 | Jul 1, 2020 |
| INVE | CFO | Tax Withholding | 105 | $2.96 | $311 | May 15, 2020 |
| INVE | CFO | Tax Withholding | 105 | $2.96 | $311 | May 1, 2020 |
| INVE | CFO | Tax Withholding | 2,300 | $5.11 | $11,753 | Feb 14, 2020 |
| INVE | CFO | Tax Withholding | 128 | $4.74 | $607 | Jan 31, 2020 |
| INVE | CFO | Tax Withholding | 1,022 | $5.64 | $5,764 | Dec 31, 2019 |
| INVE | CFO | Tax Withholding | 1,945 | $5.07 | $9,861 | Nov 15, 2019 |
| INVE | CFO | Award / Grant | 20,000 | — | — | Nov 4, 2019 |
| INVE | CFO | Tax Withholding | 432 | $4.95 | $2,138 | Nov 1, 2019 |
| INVE | CFO | Tax Withholding | 864 | $5.32 | $4,596 | Oct 1, 2019 |
| INVE | CFO | Tax Withholding | 1,945 | $5.00 | $9,725 | Aug 15, 2019 |
| INVE | CFO | Tax Withholding | 864 | $5.32 | $4,596 | Jul 1, 2019 |
| INVE | CFO | Tax Withholding | 1,917 | $5.03 | $9,643 | May 15, 2019 |
| INVE | CFO | Tax Withholding | 3,796 | $4.89 | $18,562 | Apr 1, 2019 |
| INVE | CFO | Tax Withholding | 2,299 | $5.00 | $11,495 | Feb 15, 2019 |
| INVE | CFO | Tax Withholding | 1,945 | $5.96 | $11,592 | Nov 15, 2018 |
| INVE | CFO | Award / Grant | 5,000 | — | — | Oct 31, 2018 |
| INVE | CFO | Tax Withholding | 1,945 | $6.06 | $11,787 | Aug 15, 2018 |
| INVE | CFO | Tax Withholding | 9,135 | $3.85 | $35,170 | May 15, 2018 |
| INVE | CFO | Award / Grant | 90,000 | — | — | Mar 6, 2017 |