Walker Karin L
Insider transactions at 2 companies
This page shows all SEC Form 4 filings attributed to Walker Karin L. 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 |
|---|---|---|---|---|---|---|
| PRTA | Chief Accounting Officer | Award / Grant | 25,000 | — | — | Jul 28, 2025 |
| PRTA | Chief Accounting Officer | Option Exercise | 5,000 | $13.53 | $67,650 | Jan 24, 2024 |
| PRTA | Chief Accounting Officer | Sale | 3,322 | $37.45 | $124,409 | Dec 20, 2023 |
| PRTA | Chief Accounting Officer | Option Exercise | 5,000 | $13.53 | $67,650 | Nov 30, 2023 |
| PRTA | Chief Accounting Officer | Option Exercise | 5,000 | $13.53 | $67,650 | Oct 25, 2023 |
| PRTA | Chief Accounting Officer | Sale | 5,000 | $52.36 | $261,800 | Sep 19, 2023 |
| PRTA | Chief Accounting Officer | Sale | 5,000 | $57.18 | $285,900 | Aug 18, 2023 |
| PRTA | Chief Accounting Officer | Option Exercise | 5,000 | $15.04 | $75,200 | Jul 19, 2023 |
| BGMSP | Award / Grant | 21,219 | — | — | Jun 30, 2023 | |
| PRTA | Chief Accounting Officer | Sale | 2,000 | $67.88 | $135,760 | Jun 20, 2023 |
| PRTA | Chief Accounting Officer | Option Exercise | 5,000 | $15.04 | $75,200 | May 19, 2023 |
| PRTA | Chief Accounting Officer | Sale | 2,917 | $52.64 | $153,551 | Apr 19, 2023 |
| PRTA | Chief Accounting Officer | Sale | 1,097 | $48.47 | $53,172 | Mar 20, 2023 |
| PRTA | Chief Accounting Officer | Sale | 9,431 | $48.14 | $454,008 | Mar 15, 2023 |
| PRTA | Chief Accounting Officer | Option Exercise | 10,000 | $15.04 | $150,400 | Nov 18, 2022 |
| PRTA | Chief Accounting Officer | Sale | 1,164 | $58.98 | $68,653 | Oct 24, 2022 |
| BGMSP | Award / Grant | 15,822 | — | — | Jun 14, 2022 | |
| PRTA | Chief Accounting Officer | Sale | 1,819 | $58.43 | $106,284 | Nov 23, 2021 |
| PRTA | Chief Accounting Officer | Sale | 19,115 | $60.00 | $1,146,900 | Oct 20, 2021 |
| BGMSP | Award / Grant | 1,187 | — | — | Jun 15, 2021 | |
| PRTA | See Remarks | Sale | 1,500 | $70.00 | $105,000 | Sep 28, 2017 |
| PRTA | See Remarks | Sale | 3,600 | $65.21 | $234,756 | Jul 17, 2017 |
| PRTA | See Remarks | Sale | 2,900 | $52.21 | $151,409 | Apr 17, 2017 |
| PRTA | See Remarks | Sale | 1,100 | $53.61 | $58,971 | Oct 13, 2016 |
| PRTA | See Remarks | Option Exercise | 5,000 | $27.81 | $139,050 | Sep 19, 2016 |
| PRTA | See Remarks | Sale | 1,000 | $45.28 | $45,280 | Apr 13, 2016 |
| PRTA | See Remarks | Sale | 500 | $51.82 | $25,910 | Jan 13, 2016 |
| PRTA | See Remarks | Option Exercise | 5,000 | $9.75 | $48,750 | Aug 12, 2015 |
| PRTA | See Remarks | Sale | 2,500 | $21.53 | $53,825 | Feb 10, 2015 |
| PRTA | See Remarks | Sale | 2,500 | $20.00 | $50,000 | Dec 9, 2014 |
| PRTA | See Remarks | Sale | 2,500 | $20.09 | $50,225 | Oct 16, 2014 |
| PRTA | See Remarks | Sale | 2,500 | $20.09 | $50,225 | Oct 16, 2014 |
| PRTA | See Remarks | Sale | 2,500 | $20.74 | $51,850 | Aug 12, 2014 |
| PRTA | See Remarks | Sale | 8,000 | $21.58 | $172,640 | Jun 6, 2014 |