PROTHENA CORP PUBLIC LTD CO
Last 30 daysInsiders bought $4M · 1 buyer, led by William P. Scully (10% owner) with $4M. No qualifying insider sales.
Showing the first 6 of 20 trades on this page.
10% owner
Ordinary Shares, par value $0.01 per share
The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.
10% owner
Ordinary Shares, par value $0.01 per share
The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.
10% owner
Ordinary Shares, par value $0.01 per share
The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.
Chief Scientific Officer
Ordinary Shares, par value $0.01 per share
Chief Scientific Officer
Ordinary Shares, par value $0.01 per share
Chief Scientific Officer
Restricted Stock Units
Derivative security · not the ordinary share price.
This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.
Chief Accounting Officer
Ordinary Shares, par value $0.01 per share
Chief Accounting Officer
Ordinary Shares, par value $0.01 per share
Chief Accounting Officer
Restricted Stock Units
Derivative security · not the ordinary share price.
This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.
Chief Development Officer
Ordinary Shares, par value $0.01 per share
Chief Development Officer
Ordinary Shares, par value $0.01 per share
Chief Development Officer
Ordinary Shares, par value $0.01 per share
Chief Development Officer
Restricted Stock Units
Derivative security · not the ordinary share price.
This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.
Chief Operating Officer
Ordinary Shares, par value $0.01 per share
Chief Operating Officer
Ordinary Shares, par value $0.01 per share
Chief Operating Officer
Restricted Stock Units
Derivative security · not the ordinary share price.
This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.
Chief Strategy Officer and CFO
Ordinary Shares, par value $0.01 per share
Chief Strategy Officer and CFO
Ordinary Shares, par value $0.01 per share
Chief Strategy Officer and CFO
Restricted Stock Units
Derivative security · not the ordinary share price.
This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.
President and CEO
Ordinary Shares, par value $0.01 per share
| Reporting insider | Security / transaction | Amount / price | Value | Traded / disclosed | Source |
|---|---|---|---|---|---|
| 10% owner | Ordinary Shares, par value $0.01 per shareGift | 336,000Gift · no purchase price | Not a purchase | Aug 17Filed Aug 18 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per shareGift | 627,553Gift · no purchase price | Not a purchase | Aug 18Filed Aug 18 · 0d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per shareGift | 251,553Gift · no purchase price | Not a purchase | Aug 10Filed Aug 11 · 1d later | SEC filing |
| Chief Scientific Officer | Ordinary Shares, par value $0.01 per shareOption exercise or conversion | 51,000Price not reported | Unavailable | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Scientific Officer | Ordinary Shares, par value $0.01 per shareDisposition to issuer | 51,000$8.56 / share | $436.56K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Scientific Officer | Restricted Stock UnitsOption exercise or conversion | Derivative units51,000Exercise / conversion price not reported | Not a separate purchase | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Accounting Officer | Ordinary Shares, par value $0.01 per shareOption exercise or conversion | 15,000Price not reported | Unavailable | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Accounting Officer | Ordinary Shares, par value $0.01 per shareDisposition to issuer | 15,000$8.56 / share | $128.4K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Accounting Officer | Restricted Stock UnitsOption exercise or conversion | Derivative units15,000Exercise / conversion price not reported | Not a separate purchase | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Development Officer | Ordinary Shares, par value $0.01 per shareOption exercise or conversion | 51,000Price not reported | Unavailable | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Development Officer | Ordinary Shares, par value $0.01 per shareDisposition to issuer | 40,800$8.56 / share | $349.25K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Development Officer | Ordinary Shares, par value $0.01 per shareExercise-price or tax withholding | 3,467$8.56 / share | $29.68K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Development Officer | Restricted Stock UnitsOption exercise or conversion | Derivative units51,000Exercise / conversion price not reported | Not a separate purchase | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Operating Officer | Ordinary Shares, par value $0.01 per shareOption exercise or conversion | 78,000Price not reported | Unavailable | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Operating Officer | Ordinary Shares, par value $0.01 per shareDisposition to issuer | 78,000$8.56 / share | $667.68K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Operating Officer | Restricted Stock UnitsOption exercise or conversion | Derivative units78,000Exercise / conversion price not reported | Not a separate purchase | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Strategy Officer and CFO | Ordinary Shares, par value $0.01 per shareOption exercise or conversion | 57,000Price not reported | Unavailable | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Strategy Officer and CFO | Ordinary Shares, par value $0.01 per shareDisposition to issuer | 57,000$8.56 / share | $487.92K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Strategy Officer and CFO | Restricted Stock UnitsOption exercise or conversion | Derivative units57,000Exercise / conversion price not reported | Not a separate purchase | Jul 28Filed Jul 30 · 2d later | SEC filing |
| President and CEO | Ordinary Shares, par value $0.01 per shareOption exercise or conversion | 84,000Price not reported | Unavailable | Jul 28Filed Jul 30 · 2d later | SEC filing |
Showing the latest 20 of 32 trades. Show all 32 trades
This reflects the filings imported so far, not a complete trading history.
$5,385,325 of common-equity purchase value after transaction-age decay across 180 days.
1 distinct reporting-owner group(s). Joint rows count once; identity is not proof of discretion.
A reporting-owner group bought on at least two distinct dates within the cluster window.
At least one row increased reported same-security holdings by 10% or established a new reported position; indirect interests may overlap.
This score describes qualifying insider purchases at issuer level. Read the methodology
Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.
Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.
