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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.

AMPX-WT INVE
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