Brandon S. Smith serves as Executive at PROTHENA CORP PUBLIC LTD CO, where they oversee executive responsibilities. Since joining the company, Brandon S. Smith has executed 19 insider transactions totaling $1.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jul 28, 2025 involved receiving (via award) 130,000 shares valued at $0.
Brandon S. Smith currently holds 130,000 shares of PROTHENA CORP PUBLIC LTD CO (PRTA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Brandon S. Smith has been a net seller of PRTA stock. They have purchased $0 and sold $1.3M worth of shares.
Brandon S. Smith's most recent insider trade was on Jul 28, 2025, when they sold 130,000 shares at $0.00 per share.
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| $46.62 |
| Planned |
| Oct 11, 2023 | PRTA | $44.5K | Option Exercise | 4,000 | $11.12 | Planned |
| Oct 11, 2023 | PRTA | $21.2K | Sale | 444 | $47.74 | Planned |
| Sep 13, 2023 | PRTA | $44.5K | Option Exercise | 4,000 | $11.12 | Planned |
| Sep 13, 2023 | PRTA | $6.4K | Sale | 114 | $55.96 | Planned |
| Sep 13, 2023 | PRTA | $215.6K | Sale | 3,886 | $55.48 | Planned |
| Aug 16, 2023 | PRTA | $24.0K | Sale | 401 | $59.91 | Planned |
| Aug 16, 2023 | PRTA | $81.2K | Sale | 1,373 | $59.15 | Planned |
| Aug 16, 2023 | PRTA | $129.6K | Sale | 2,226 | $58.22 | Planned |
| Aug 16, 2023 | PRTA | $44.5K | Option Exercise | 4,000 | $11.12 | Planned |
| Jul 12, 2023 | PRTA | $44.5K | Option Exercise | 4,000 | $11.12 | Planned |
| Jul 12, 2023 | PRTA | $54.4K | Sale | 800 | $67.95 | Planned |
| Jul 12, 2023 | PRTA | $215.7K | Sale | 3,200 | $67.40 | Planned |
| Jun 14, 2023 | PRTA | $71.6K | Sale | 959 | $74.69 | Planned |
| Jun 14, 2023 | PRTA | $140.4K | Sale | 1,914 | $73.35 | Planned |
| Jun 14, 2023 | PRTA | $79.6K | Sale | 1,098 | $72.52 | Planned |
| Jun 14, 2023 | PRTA | $59.3K | Option Exercise | 5,333 | $11.12 | Planned |
| Jun 14, 2023 | PRTA | $102.9K | Sale | 1,362 | $75.56 | Planned |