Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| PROTHENA CORP PUBLIC LTD COPRTA · Entity 2375 | Director | May 15, 2026 | May 16, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
PROTHENA CORP PUBLIC LTD CO
Report date May 15, 2026 · Filed May 16, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $9.76 · Expires 2036-05-15 | Direct | 27,000 |
Reported balance
After 2026-05-15 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-05-15 · Grant · Acquired 27,000 · Balance 27,000 F1: The shares subject to the option will vest and become exercisable as to 100% of the total number of shares subject to the option on the earlier of the first anniversary of the grant date or the day of the annual general meeting in 2027 of the Issuer's shareholders, assuming continuous service as a director until such vesting date. |
Filing footnotes · ownership attribution and instrument terms
F1: The shares subject to the option will vest and become exercisable as to 100% of the total number of shares subject to the option on the earlier of the first anniversary of the grant date or the day of the annual general meeting in 2027 of the Issuer's shareholders, assuming continuous service as a director until such vesting date.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| April 03, 2017 Filed Apr 5, 2017 20:06 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | SaleOrdinary Shares, par value $0.01 per share | 3,500 | $55.86 | $195,522.95 |
DisclosureSEC source: 0000899243-17-009487 · doc4.xml · nonDerivative · entry 2 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,845 F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person. F2 · price: The transaction was executed in multiple trades in prices ranging from $55.39 to $56.14, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a stockholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. Read SEC document |
| April 03, 2017 Filed Apr 5, 2017 20:06 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | Exercise / conversionOrdinary Shares, par value $0.01 per share | 3,500 | $16.42 | $57,470.00 |
DisclosureSEC source: 0000899243-17-009487 · doc4.xml · nonDerivative · entry 1 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,345 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 21:16 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | Exercise / conversionStock Option (right to buy) · Derivative | 3,500 | $0.00 Strike: $16.42 | $0.00 |
DisclosureSEC source: 0000899243-17-006354 · doc4.xml · derivative · entry 4 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,000 Underlying: Ordinary Shares · 3,500 shares Expires 2023-07-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 21:16 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | SaleOrdinary Shares, par value $0.01 per share | 3,500 | $59.25 | $207,364.15 |
DisclosureSEC source: 0000899243-17-006354 · doc4.xml · nonDerivative · entry 2 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,845 F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person. F2 · price: The transaction was executed in multiple trades in prices ranging from $58.70 to $59.62, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a stockholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 21:16 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | Exercise / conversionOrdinary Shares, par value $0.01 per share | 3,500 | $16.42 | $57,470.00 |
DisclosureSEC source: 0000899243-17-006354 · doc4.xml · nonDerivative · entry 1 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,345 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 28, 2016 Filed Nov 30, 2016 21:05 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | Exercise / conversionStock Option (right to buy) · Derivative | 5,000 | $0.00 Strike: $16.42 | $0.00 |
DisclosureSEC source: 0000899243-16-034544 · doc4.xml · derivative · entry 5 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 17,500 Underlying: Ordinary Shares · 5,000 shares Expires 2023-07-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 28, 2016 Filed Nov 30, 2016 21:05 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | SaleOrdinary Shares, par value $0.01 per share | 900 | $63.59 | $57,231.99 |
DisclosureSEC source: 0000899243-16-034544 · doc4.xml · nonDerivative · entry 3 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,845 F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person. F3 · price: The transaction was executed in multiple trades in prices ranging from $62.88 to $63.68, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a stockholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. Read SEC document |
| November 28, 2016 Filed Nov 30, 2016 21:05 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | SaleOrdinary Shares, par value $0.01 per share | 4,100 | $62.17 | $254,886.34 |
DisclosureSEC source: 0000899243-16-034544 · doc4.xml · nonDerivative · entry 2 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,745 F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person. F2 · price: The transaction was executed in multiple trades in prices ranging from $61.76 to $62.64, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a stockholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. Read SEC document |
| November 28, 2016 Filed Nov 30, 2016 21:05 UTC | PROTHENA CORP PUBLIC LTD CO PRTA · Entity 2375 | Exercise / conversionOrdinary Shares, par value $0.01 per share | 5,000 | $16.42 | $82,100.00 |
DisclosureSEC source: 0000899243-16-034544 · doc4.xml · nonDerivative · entry 1 Selkoe Dennis J. · CIK 0001582306 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 7,845 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.