CIK 0001559053 · Accelerated filer
PROTHENA CORP PUBLIC LTD CO
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- PRTA
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- Ireland
- Entity type
- operating
- Phone
- 011-353-1-236-2500
- Business address
- 77 SIR JOHN ROGERSON'S QUAY, BLOCK C, GRAND CANAL DOCKLANDS, DUBLIN 2, Ireland, D02 VK60
- Former names
- Prothena Corp plc, Neotope Corp Ltd
- Open-market buys, last 90 days
- $9,848,721
- in 10 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Net +$9,848,721. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-07-29 | Kingston Anne Evans Chief Strategy Officer | Sale 10b5-1 | −7,662 | $8.47 | $65K | 55,782 |
| 2026-07-29 | Isaacs Michael John General Counsel & Company Sec. | Sale 10b5-1 | −8,386 | $8.47 | $71K | 35,745 |
| 2025-05-06 | EcoR1 Capital, LLC 10% owner | Sale | −1,984,053 | $7.64 | $15.2M | 5,304,596 |
| 2025-05-05 | EcoR1 Capital, LLC 10% owner | Sale | −977,693 | $8.11 | $7.9M | 7,288,649 |
| 2025-05-02 | EcoR1 Capital, LLC 10% owner | Sale | −3,317,938 | $8.36 | $27.7M | 8,266,342 |
| 2024-01-24 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −5,000 | $34.00 | $170K | 0 |
| 2023-12-20 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −1,678 | $36.68 | $62K | 3,322 |
| 2023-12-20 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −3,322 | $37.45 | $124K | 0 |
| 2023-11-30 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −5,000 | $34.00 | $170K | 0 |
| 2023-10-25 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −1,789 | $40.27 | $72K | 3,211 |
| 2023-10-25 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −2,917 | $41.38 | $121K | 294 |
| 2023-10-25 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −294 | $42.28 | $12K | 0 |
| 2023-10-11 | Smith Brandon S. Chief Operating Officer | Sale 10b5-1 | −3,556 | $46.62 | $166K | 444 |
| 2023-10-11 | Smith Brandon S. Chief Operating Officer | Sale 10b5-1 | −444 | $47.74 | $21K | 0 |
| 2023-10-04 | Karp Carol D. Chief Regulatory Officer | Sale 10b5-1 | −4,337 | $46.51 | $202K | 663 |
| 2023-10-04 | Karp Carol D. Chief Regulatory Officer | Sale 10b5-1 | −663 | $47.29 | $31K | 0 |
| 2023-09-27 | Malecek Michael J Chief Legal Officer | Sale 10b5-1 | −4,596 | $47.29 | $217K | 404 |
| 2023-09-27 | Malecek Michael J Chief Legal Officer | Sale 10b5-1 | −404 | $48.31 | $20K | 0 |
| 2023-09-19 | Walker Karin L Chief Accounting Officer | Sale 10b5-1 | −5,000 | $52.36 | $262K | 0 |
| 2023-09-13 | Garren Hideki Chief Medical Officer | Sale 10b5-1 | −2,000 | $55.48 | $111K | 0 |
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