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| Keyboard |
| Prothena Corp PLC | |
|---|---|
| Ticker | PRTA |
| CIK # | 0001559053 |
| CUSIP | G72800108 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | 25-28 North Wall Quay, Dublin, DUBLIN 1 |
| Source | [EDGAR] |
| Reg D Offering (Form D) | Filed | Raised | Terms |
|---|---|---|---|
| Prothena Corp PLC | 2018-03-29 | 50.0 M | Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0001559053] | 10-K | |
| [0001559053] | 10-Q | |
| [0001559053] | 3 | |
| [0001559053] | 4 | |
| [0001559053] | 5 | |
| [0001559053] | 8-K | |
| [0001559053] | D | |
| [0001559053] | SC 13D | |
| [0001559053] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Kinney Gene G
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 520,000 | $0.00 | |
|
Walker Karin L
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 150,000 | $0.00 | |
|
Malecek Michael J
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 190,000 | $0.00 | |
|
Swanson Chad J
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 190,000 | $0.00 | |
|
Smith Brandon S
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 190,000 | $0.00 | |
|
Zago Wagner M
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 190,000 | $0.00 | |
|
Nguyen Tran
Stock Option (Right to Buy) · derivative
|
2026-03-03 | Grant | 230,000 | $0.00 | |
|
Malecek Michael J
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 80,000 | $0.00 | |
|
Kinney Gene G
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 140,000 | $0.00 | |
|
Zago Wagner M
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 85,000 | $0.00 | |
|
Nguyen Tran
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 95,000 | $0.00 | |
|
Swanson Chad J
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 85,000 | $0.00 | |
|
Smith Brandon S
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 130,000 | $0.00 | |
|
Walker Karin L
Ordinary Shares, par value $0.01 per share
|
2025-07-28 | Grant | 25,000 | $0.00 | |
|
Cooke Shane
Stock Option (Right to Buy) · derivative
|
2025-05-14 | Grant | 20,183 | $0.00 | |
|
Welch Daniel G
Stock Option (Right to Buy) · derivative
|
2025-05-14 | Grant | 20,183 | $0.00 | |
|
Collier Richard T
Stock Option (Right to Buy) · derivative
|
2025-05-14 | Grant | 20,183 | $0.00 | |
|
Cobb Paula K
Stock Option (Right to Buy) · derivative
|
2025-05-14 | Grant | 20,183 | $0.00 | |
|
Dunn William H Jr
Stock Option (Right to Buy) · derivative
|
2025-05-14 | Grant | 20,183 | $0.00 | |
|
Selkoe Dennis J
Stock Option (Right to Buy) · derivative
|
2025-05-14 | Grant | 20,183 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 186 | 45,844,580 |
| 2025-12-31 | 183 | 47,118,462 |
| 2025-09-30 | 189 | 43,310,910 |
| 2025-06-30 | 192 | 42,381,699 |
| 2025-03-31 | 166 | 49,251,542 |
| 2024-12-31 | 176 | 50,943,158 |
| 2024-09-30 | 167 | 47,797,167 |
| 2024-06-30 | 163 | 47,337,553 |
| 2024-03-31 | 169 | 51,332,251 |
| 2023-12-31 | 196 | 53,675,501 |
| 2023-09-30 | 192 | 48,893,976 |
| 2023-06-30 | 199 | 48,143,173 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| Hennion & Walsh Asset Management Inc | [2026-06-30] | SOLE | 90,795 | 90,795 |
| Assenagon Asset Management SA | [2026-06-30] | SOLE | 62,785 | 62,785 |
| Mogy Joel R Investment Counsel Inc | [2026-06-30] | SOLE | 20,750 | 20,750 |
| Ballentine Partners LLC | [2026-06-30] | OTR | 0 | 16,793 |
| Chicago Trust Co NA | [2026-06-30] | SOLE | 15,057 | 15,057 |
| Cary Street Partners Financial LLC | [2026-06-30] | DFND | 1,500 | 12,500 |
| Wealth Enhancement Advisory Services LLC | [2026-06-30] | SOLE | 898 | 11,156 |
| Gamma Investing LLC | [2026-06-30] | DFND | 2,588 | 2,588 |
| Farther Finance Advisors LLC | [2026-06-30] | SOLE | 0 | 2,488 |
| Versant Capital Management Inc | [2026-06-30] | SOLE | 2,044 | 2,044 |
| HM Payson & Co | [2026-06-30] | SOLE | 0 | 600 |
| IFP Advisors LLC | [2026-06-30] | SOLE | 167 | 167 |
| True Wealth Design LLC | [2026-06-30] | SOLE | 0 | 103 |
| Harbor Investment Advisory LLC | [2026-06-30] | SOLE | 100 | 100 |
| Cary Street Partners Investment Advisory LLC | [2026-06-30] | OTR | 0 | 77 |
| Corecap Advisors LLC | [2026-06-30] | SOLE | 0 | 11 | Prev | Page 1 | Next |