Purchase disclosed
William P. Scully
10% owner
Ordinary Shares, par value $0.01 per share
- Reported value
- $857.24K
- Reported price
- $8.5724 / share
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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 47 trades on this page.
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
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.
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
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
President and CEO
Ordinary Shares, par value $0.01 per share
President and CEO
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
Ordinary Shares, par value $0.01 per share
Chief Strategy Officer
Ordinary Shares, par value $0.01 per share
General Counsel & Company Sec.
Ordinary Shares, par value $0.01 per share
General Counsel & Company Sec.
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
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
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
10% owner
Ordinary Shares, par value $0.01 per share
Director
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
Director
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
Director
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
Director
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
Director
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
Director
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
Chief Strategy Officer
Stock Option (Right to Buy)
Derivative security · not the ordinary share price.
The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.
| Reporting insider | Security / transaction | Amount / price | Value | Traded / disclosed | Source |
|---|---|---|---|---|---|
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 100,000$8.57 / share | $857.24K | Oct 2Filed Oct 6 · 4d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 162,000$8.68 / share | $1.41M | Sep 29Filed Sep 30 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 103,500$8.60 / share | $889.87K | Sep 28Filed Sep 29 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 100,000$8.43 / share | $843.46K | Sep 18Filed Sep 21 · 3d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 27,000$9.47 / share | $255.74K | Sep 2Filed Sep 3 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 50,000$8.79 / share | $439.43K | Aug 20Filed Aug 21 · 1d later | SEC filing |
| 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 |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase2 trades | 37,500avg $8.62 / share | $323.22K | Aug 7Filed Aug 10 · 3d later | 2 filings
|
| 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 |
| President and CEO | Ordinary Shares, par value $0.01 per shareDisposition to issuer | 84,000$8.56 / share | $719.04K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| President and CEO | Restricted Stock UnitsOption exercise or conversion | Derivative units84,000Exercise / conversion price not reported | Not a separate purchase | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Strategy Officer | Ordinary Shares, par value $0.01 per shareExercise-price or tax withholding10b5-1 | 3,498$8.56 / share | $29.94K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| Chief Strategy Officer | Ordinary Shares, par value $0.01 per shareSale10b5-1 | 7,662$8.47 / share | $64.92K | Jul 29Filed Jul 30 · 1d later | SEC filing |
| General Counsel & Company Sec. | Ordinary Shares, par value $0.01 per shareExercise-price or tax withholding10b5-1 | 4,694$8.56 / share | $40.18K | Jul 28Filed Jul 30 · 2d later | SEC filing |
| General Counsel & Company Sec. | Ordinary Shares, par value $0.01 per shareSale10b5-1 | 8,386$8.47 / share | $71.06K | Jul 29Filed Jul 30 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 20,000$7.90 / share | $157.99K | Jun 16Filed Jun 18 · 2d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per shareGift | 325,000Gift · no purchase price | Not a purchase | Jun 15Filed Jun 16 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 125,000$8.17 / share | $1.02M | Jun 11Filed Jun 12 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 50,000$9.31 / share | $465.3K | Jun 4Filed Jun 5 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 50,000$9.43 / share | $471.3K | Jun 2Filed Jun 3 · 1d later | SEC filing |
| 10% owner | Ordinary Shares, par value $0.01 per sharePurchase | 100,000$9.81 / share | $981.3K | May 22Filed May 26 · 4d later | SEC filing |
| Director | Stock Option (Right to Buy)Grant or award | Derivative units27,000Award · no purchase price | Non-cash award | May 15Filed May 15 · 0d later | SEC filing |
| Director | Stock Option (Right to Buy)Grant or award | Derivative units27,000Award · no purchase price | Non-cash award | May 15Filed May 15 · 0d later | SEC filing |
| Director | Stock Option (Right to Buy)Grant or award | Derivative units27,000Award · no purchase price | Non-cash award | May 15Filed May 15 · 0d later | SEC filing |
| Director | Stock Option (Right to Buy)Grant or award | Derivative units27,000Award · no purchase price | Non-cash award | May 15Filed May 15 · 0d later | SEC filing |
| Director | Stock Option (Right to Buy)Grant or award | Derivative units27,000Award · no purchase price | Non-cash award | May 15Filed May 15 · 0d later | SEC filing |
| Director | Stock Option (Right to Buy)Grant or award | Derivative units27,000Award · no purchase price | Non-cash award | May 15Filed May 15 · 0d later | SEC filing |
| Chief Strategy Officer | Stock Option (Right to Buy)Grant or award | Derivative units100,000Award · no purchase price | Non-cash award | Apr 10Filed Apr 10 · 0d later | SEC filing |
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.