CHERNOW DAVID S
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to CHERNOW DAVID S. 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 |
|---|---|---|---|---|---|---|
| SEM | CEO | Tax Withholding | 49,100 | $12.57 | $617,187 | Aug 1, 2025 |
| SEM | CEO | Award / Grant | 250,000 | — | — | Jul 29, 2025 |
| SEM | CEO | Tax Withholding | 22,586 | $18.24 | $411,969 | Apr 30, 2025 |
| SEM | CEO | Sale | 225,000 | $18.00 | $4,050,000 | Apr 28, 2025 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 70,704 | $37.21 | $2,630,896 | Nov 5, 2024 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 88,380 | $34.18 | $3,020,828 | Aug 3, 2024 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 73,650 | $39.18 | $2,885,607 | Aug 1, 2024 |
| SEM | PRESIDENT AND CEO | Award / Grant | 230,000 | — | — | Apr 30, 2024 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 36,825 | $29.92 | $1,101,804 | Aug 1, 2023 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 110,475 | $30.03 | $3,317,564 | Jul 28, 2023 |
| SEM | PRESIDENT AND CEO | Sale | 139,550 | $27.30 | $3,809,715 | Feb 27, 2023 |
| SEM | PRESIDENT AND CEO | Award / Grant | 250,000 | — | — | Aug 1, 2022 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 110,450 | $29.62 | $3,271,529 | Jul 30, 2022 |
| SEM | PRESIDENT AND CEO | Tax Withholding | 110,450 | $29.62 | $3,271,529 | Jul 30, 2022 |
| SEM | President and CEO | Sale | 139,550 | $36.14 | $5,043,337 | Aug 9, 2021 |
| SEM | President and CEO | Award / Grant | 200,000 | — | — | Aug 3, 2021 |
| SEM | President and CEO | Tax Withholding | 110,450 | $39.45 | $4,357,253 | Jul 31, 2021 |
| SEM | President and CEO | Sale | 111,640 | $25.00 | $2,791,000 | Nov 9, 2020 |
| SEM | President and CEO | Tax Withholding | 110,450 | $19.04 | $2,102,968 | Aug 2, 2020 |
| SEM | President and CEO | Award / Grant | 250,000 | — | — | Jul 28, 2020 |
| SEM | President and CEO | Sale | 26,443 | $19.17 | $506,912 | Nov 1, 2019 |
| SEM | President and CEO | Sale | 1,400 | $18.00 | $25,200 | Oct 29, 2019 |
| SEM | President and CEO | Tax Withholding | 88,360 | $15.78 | $1,394,321 | Aug 3, 2019 |
| SEM | President and CEO | Award / Grant | 250,000 | — | — | Jul 30, 2019 |
| SEM | President and CEO | Sale | 38,613 | $19.40 | $749,092 | Aug 8, 2018 |
| SEM | President and CEO | Tax Withholding | 88,360 | $20.15 | $1,780,454 | Aug 7, 2018 |
| SEM | President and CEO | Award / Grant | 250,000 | — | — | Jul 31, 2018 |
| SEM | President and CEO | Sale | 133,025 | $17.85 | $2,374,496 | Sep 14, 2017 |
| SEM | President and CEO | Tax Withholding | 70,185 | $17.15 | $1,203,673 | Aug 6, 2017 |
| SEM | President and CEO | Award / Grant | 250,000 | — | — | Aug 2, 2017 |
| SEM | President and CEO | Sale | 50,000 | $14.01 | $700,500 | May 8, 2017 |
| SEM | President and CEO | Sale | 50,000 | $13.51 | $675,500 | Sep 30, 2016 |
| SEM | President and CEO | Tax Withholding | 116,975 | $12.26 | $1,434,114 | Sep 13, 2016 |
| SEM | President and CEO | Sale | 20,494 | $12.01 | $246,133 | Sep 2, 2016 |
| SEM | President and CEO | Sale | 1,300 | $12.00 | $15,600 | Aug 30, 2016 |
| SEM | President and CEO | Sale | 6,000 | $12.19 | $73,140 | Aug 8, 2016 |
| SEM | Chief Executive Officer | Award / Grant | 200,000 | — | — | Aug 3, 2016 |
| SEM | Chief Executive Officer | Tax Withholding | 116,975 | $12.24 | $1,431,774 | Sep 13, 2015 |
| SEM | Chief Executive Officer | Award / Grant | 200,000 | — | — | Aug 5, 2015 |
| SEM | Chief Executive Officer | Sale | 33,025 | $16.39 | $541,280 | Jul 1, 2015 |
| SEM | Chief Executive Officer | Sale | 4,801 | $12.02 | $57,708 | Oct 2, 2014 |
| SEM | Chief Executive Officer | Tax Withholding | 116,975 | $13.31 | $1,556,937 | Sep 13, 2014 |
| SEM | Chief Executive Officer | Award / Grant | 150,000 | — | — | Aug 6, 2014 |
| SEM | President | Tax Withholding | 116,975 | $8.24 | $963,874 | Sep 13, 2013 |
| SEM | President | Sale | 4,500 | $10.47 | $47,115 | Sep 7, 2012 |
| SEM | President | Sale | 1,819 | $10.35 | $18,827 | Aug 22, 2012 |
| SEM | President | Award / Grant | 1,000,000 | — | — | Sep 13, 2010 |
| SEM | C | 8,631 | — | — | Sep 30, 2009 |