Scully William P
10% owner
Buy
Calculated transaction value
$1.19M
140,000 shares @ $8.53
Traded
Nov 9, 2026
Filed
Nov 10, 2026
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Prothena Corporation plc Ordinary Shares
PRTA
ManufacturingChemicals
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
48 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Scully William P 10% owner | Nov 10, 2026 1-day lag | Buy Nov 9, 2026 | $1.19M Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Nov 10, 2026 4-day lag | Gift Nov 6, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 29, 2026 2-day lag | Gift Oct 27, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 26, 2026 3-day lag | Buy Oct 23, 2026 | $403.52K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 26, 2026 4-day lag | Buy Oct 22, 2026 | $818.52K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 15, 2026 1-day lag | Buy Oct 14, 2026 | $84.57K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 15, 2026 2-day lag | Buy Oct 13, 2026 | $835.48K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 9, 2026 1-day lag | Buy Oct 8, 2026 | $770.9K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 9, 2026 2-day lag | Buy Oct 7, 2026 | $1.05M Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Oct 6, 2026 4-day lag | Buy Oct 2, 2026 | $857.24K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Sep 30, 2026 1-day lag | Buy Sep 29, 2026 | $1.41M Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Sep 29, 2026 1-day lag | Buy Sep 28, 2026 | $889.87K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Sep 21, 2026 3-day lag | Buy Sep 18, 2026 | $843.46K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Sep 3, 2026 1-day lag | Buy Sep 2, 2026 | $255.74K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Aug 21, 2026 1-day lag | Buy Aug 20, 2026 | $439.43K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Aug 18, 2026 Same-day filing | Gift Aug 18, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Aug 18, 2026 1-day lag | Gift Aug 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Aug 11, 2026 1-day lag | Gift Aug 10, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Aug 10, 2026 3-day lag | Buy Aug 7, 2026 | $293.05K Filed shares x price | SEC Form 4 View filing | |
| Scully William P 10% owner | Aug 10, 2026 3-day lag | Buy Aug 7, 2026 | $30.17K Filed shares x price | SEC Form 4 View filing | |
| Zago Wagner M. Chief Scientific Officer | Jul 30, 2026 2-day lag | Disposition Jul 28, 2026 | $436.56K Filed shares x price | SEC Form 4 View filing | |
| Zago Wagner M. Chief Scientific Officer | Jul 30, 2026 2-day lag | Exercise Jul 28, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Zago Wagner M. Chief Scientific Officer | Jul 30, 2026 2-day lag | Exercise Jul 28, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Walker Karin L Chief Accounting Officer | Jul 30, 2026 2-day lag | Disposition Jul 28, 2026 | $128.4K Filed shares x price | SEC Form 4 View filing | |
| Walker Karin L Chief Accounting Officer | Jul 30, 2026 2-day lag | Exercise Jul 28, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Walker Karin L Chief Accounting Officer | Jul 30, 2026 2-day lag | Exercise Jul 28, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Swanson Chad J. Chief Development Officer | Jul 30, 2026 2-day lag | Exercise Jul 28, 2026 | Not reported Reported range | SEC Form 4 View filing | |
| Swanson Chad J. Chief Development Officer | Jul 30, 2026 2-day lag | Disposition Jul 28, 2026 | $349.25K Filed shares x price | SEC Form 4 View filing | |
| Swanson Chad J. Chief Development Officer | Jul 30, 2026 2-day lag | Exercise Jul 28, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Swanson Chad J. Chief Development Officer | Jul 30, 2026 2-day lag | Disposition Jul 28, 2026 | $29.68K Filed shares x price | SEC Form 4 View filing |
Scully William P
10% owner
Gift
Calculated transaction value
$0
916,444 shares @ $0
Traded
Nov 6, 2026
Filed
Nov 10, 2026
Scully William P
10% owner
Gift
Calculated transaction value
$0
566,444 shares @ $0
Traded
Oct 27, 2026
Filed
Oct 29, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$403.52K
50,000 shares @ $8.07
Traded
Oct 23, 2026
Filed
Oct 26, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$818.52K
100,000 shares @ $8.19
Traded
Oct 22, 2026
Filed
Oct 26, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$84.57K
10,000 shares @ $8.46
Traded
Oct 14, 2026
Filed
Oct 15, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$835.48K
100,000 shares @ $8.35
Traded
Oct 13, 2026
Filed
Oct 15, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$770.9K
90,000 shares @ $8.57
Traded
Oct 8, 2026
Filed
Oct 9, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$1.05M
125,000 shares @ $8.4
Traded
Oct 7, 2026
Filed
Oct 9, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$857.24K
100,000 shares @ $8.57
Traded
Oct 2, 2026
Filed
Oct 6, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$1.41M
162,000 shares @ $8.68
Traded
Sep 29, 2026
Filed
Sep 30, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$889.87K
103,500 shares @ $8.6
Traded
Sep 28, 2026
Filed
Sep 29, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$843.46K
100,000 shares @ $8.43
Traded
Sep 18, 2026
Filed
Sep 21, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$255.74K
27,000 shares @ $9.47
Traded
Sep 2, 2026
Filed
Sep 3, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$439.43K
50,000 shares @ $8.79
Traded
Aug 20, 2026
Filed
Aug 21, 2026
Scully William P
10% owner
Gift
Calculated transaction value
$0
627,553 shares @ $0
Traded
Aug 18, 2026
Filed
Aug 18, 2026
Scully William P
10% owner
Gift
Calculated transaction value
$0
336,000 shares @ $0
Traded
Aug 17, 2026
Filed
Aug 18, 2026
Scully William P
10% owner
Gift
Calculated transaction value
$0
251,553 shares @ $0
Traded
Aug 10, 2026
Filed
Aug 11, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$293.05K
34,000 shares @ $8.62
Traded
Aug 7, 2026
Filed
Aug 10, 2026
Scully William P
10% owner
Buy
Calculated transaction value
$30.17K
3,500 shares @ $8.62
Traded
Aug 7, 2026
Filed
Aug 10, 2026
Zago Wagner M.
Chief Scientific Officer
Disposition
Calculated transaction value
$436.56K
51,000 shares @ $8.56
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Zago Wagner M.
Chief Scientific Officer
Exercise
Calculated transaction value
$0
51,000 shares @ $0
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Zago Wagner M.
Chief Scientific Officer
Exercise
Reported value range
Not reported
51,000 shares
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Walker Karin L
Chief Accounting Officer
Disposition
Calculated transaction value
$128.4K
15,000 shares @ $8.56
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Walker Karin L
Chief Accounting Officer
Exercise
Calculated transaction value
$0
15,000 shares @ $0
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Walker Karin L
Chief Accounting Officer
Exercise
Reported value range
Not reported
15,000 shares
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Swanson Chad J.
Chief Development Officer
Exercise
Reported value range
Not reported
51,000 shares
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Swanson Chad J.
Chief Development Officer
Disposition
Calculated transaction value
$349.25K
40,800 shares @ $8.56
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Swanson Chad J.
Chief Development Officer
Exercise
Calculated transaction value
$0
51,000 shares @ $0
Traded
Jul 28, 2026
Filed
Jul 30, 2026
Swanson Chad J.
Chief Development Officer
Disposition
Calculated transaction value
$29.68K
3,467 shares @ $8.56
Traded
Jul 28, 2026
Filed
Jul 30, 2026