Smith Brandon S. insider trades
Smith Brandon S. has filed 13 Form 4s with the SEC that we hold, all for Prothena Corp Public LTD Co (PRTA), as Chief Operating Officer. Across all of them we count 0 purchases worth $0 and 13 sales worth $1.3M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 3,200 shares of Prothena Corp Public LTD Co worth $215.7K, dated 2023-07-12. The first filing on our record is dated 2021-10-01 and the latest 2026-07-30.
Prothena Corp Public LTD Co (PRTA)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2023-06-14 | S, sale reported on Form 4 | 1,362 | $102.9K | 2023-06-14 |
| 2023-06-14 | S, sale reported on Form 4 | 1,098 | $79.6K | 2023-06-14 |
| 2023-06-14 | S, sale reported on Form 4 | 1,914 | $140.4K | 2023-06-14 |
| 2023-06-14 | S, sale reported on Form 4 | 959 | $71.6K | 2023-06-14 |
| 2023-07-12 | S, sale reported on Form 4 | 3,200 | $215.7K | 2023-07-12 |
| 2023-07-12 | S, sale reported on Form 4 | 800 | $54.4K | 2023-07-12 |
| 2023-08-16 | S, sale reported on Form 4 | 2,226 | $129.6K | 2023-08-16 |
| 2023-08-16 | S, sale reported on Form 4 | 1,373 | $81.2K | 2023-08-16 |
| 2023-08-16 | S, sale reported on Form 4 | 401 | $24.0K | 2023-08-16 |
| 2023-09-13 | S, sale reported on Form 4 | 3,886 | $215.6K | 2023-09-13 |
| 2023-09-13 | S, sale reported on Form 4 | 114 | $6.4K | 2023-09-13 |
| 2023-10-11 | S, sale reported on Form 4 | 444 | $21.2K | 2023-10-11 |
| 2023-10-11 | S, sale reported on Form 4 | 3,556 | $165.8K | 2023-10-11 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1805226) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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