Who
Dennis J. Selkoe
Director
Company insider
Files Form 4 as: Director, Prothena Corporation.
In numbers
- Trades disclosed
- 93
- Buys
- 0
- Sells
- 18
- Bought
- $0
- Sold
- $4.5M
- Companies
- 1
- Companies where not an officer
- 1
- First trade
- 22 Jul 2013
- Last trade
- 15 May 2026
- Last filed
- 15 May 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 15 May 2026filed 15 May 2026 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code A | —27,000 at $0.00 | filing |
| 15 May 2026filed 15 May 2026 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code A | —27,000 at $0.00 | filing |
| 14 May 2025filed 16 May 2025 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code A | —20,183 at $0.00 | filing |
| 15 May 2024filed 17 May 2024 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code A | —15,000 at $0.00 | filing |
| 3 Jul 2023filed 3 Jul 2023 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code M | —5,000 at $0.00 | filing |
| 3 Jul 2023filed 3 Jul 2023 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Code M | $57K5,000 at $11.33 | filing |
| 3 Jul 2023filed 3 Jul 2023 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Sold | $337K5,000 at $67.43 | filing |
| 17 May 2023filed 19 May 2023 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code A | —15,000 at $0.00 | filing |
| 3 May 2023filed 5 May 2023 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code M | —6,000 at $0.00 | filing |
| 3 May 2023filed 5 May 2023 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code M | —9,000 at $0.00 | filing |
| 3 May 2023filed 5 May 2023 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Code M | $55K6,000 at $9.23 | filing |
| 3 May 2023filed 5 May 2023 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Code M | $216K9,000 at $23.97 | filing |
| 3 May 2023filed 5 May 2023 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Sold | $855K15,000 at $57.00 | filing |
| 18 May 2022filed 27 May 2022 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code A | —15,000 at $0.00 | filing |
| 3 Jan 2022filed 5 Jan 2022 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code M | —5,000 at $0.00 | filing |
| 3 Jan 2022filed 5 Jan 2022 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Code M | $46K5,000 at $9.23 | filing |
| 3 Jan 2022filed 5 Jan 2022 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Sold | $100K2,133 at $46.81 | filing |
| 3 Jan 2022filed 5 Jan 2022 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Sold | $113K2,375 at $47.60 | filing |
| 3 Jan 2022filed 5 Jan 2022 | PRTA Prothena CorporationBiotechnology | SEC FORM 4 Sold | $24K492 at $49.48 | filing |
| 1 Oct 2021filed 1 Oct 2021 | PRTA Prothena Corporationoption or derivative · Biotechnology | SEC FORM 4 Code M | —5,000 at $0.00 | filing |
News
Prothena Corporation plc (PRTA) – What Are Analysts Saying About This Stock?PRTA · dailypolitical.com · 20 Oct 2026Prothena (NASDAQ:PRTA) Major Shareholder William Scully Buys 100,000 Shares of Company StockPRTA · dailypolitical.com · 15 Oct 2026Prothena (NASDAQ:PRTA) vs. Kyntra Bio (NASDAQ:KYNB) Financial ReviewPRTA · dailypolitical.com · 12 Oct 2026
0 headlines in the last 90 days name Dennis J. Selkoe; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.