PRTA
Prothena Corp Public Ltd CO
24 disclosed insider filings · 9 distinct insiders · latest Sep 3, 2026
Total filings
24
9 insiders
Insider buys
4
$1.0M
Insider sells
8
$2.9M
Grants & other
0
$0
All disclosed filings
Same-day tranches are grouped per insider - the Lots column shows how many individual executions a row covers; Price is the value-weighted average.
| Filed | Tx date | Insider | Type | Qty | Avg price | Value | Lots | Source |
|---|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | Sep 2, 2026 | William P Scully 10% OWNER | BUY | 27,000 | $9.47 | $256K | — | EDGAR |
| Aug 21, 2026 | Aug 20, 2026 | William P Scully 10% OWNER | BUY | 50,000 | $8.79 | $439K | — | EDGAR |
| Aug 18, 2026 | Aug 18, 2026 | William P Scully 10% OWNER | GIFT | 627,553 | — | — | — | EDGAR |
| Aug 18, 2026 | Aug 17, 2026 | William P Scully 10% OWNER | GIFT | 336,000 | — | — | — | EDGAR |
| Aug 11, 2026 | Aug 10, 2026 | William P Scully 10% OWNER | GIFT | 251,553 | — | — | — | EDGAR |
| Aug 10, 2026 | Aug 7, 2026 | William P Scully 10% OWNER | BUY | 37,500 | $8.62 | $323K | 2 | EDGAR |
| Jul 30, 2026 | Jul 29, 2026 | Michael John Isaacs INSIDER | SELL | 8,386 | $8.47 | $71K | — | EDGAR |
| Jul 30, 2026 | Jul 29, 2026 | Anne Evans Kingston INSIDER | SELL | 7,662 | $8.47 | $65K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Karin L Walker INSIDER | OTHER | 15,000 | — | — | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Tran Nguyen INSIDER | OTHER | 57,000 | — | — | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Karin L Walker INSIDER | SELL | 15,000 | $8.56 | $128K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Gene G Kinney INSIDER | OTHER | 84,000 | — | — | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Brandon S Smith INSIDER | OTHER | 78,000 | — | — | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Michael John Isaacs INSIDER | OTHER | 4,694 | $8.56 | $40K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Chad J Swanson INSIDER | OTHER | 54,467 | $0.54 | $30K | 2 | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Tran Nguyen INSIDER | SELL | 57,000 | $8.56 | $488K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Chad J Swanson INSIDER | SELL | 40,800 | $8.56 | $349K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Gene G Kinney INSIDER | SELL | 84,000 | $8.56 | $719K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Brandon S Smith INSIDER | SELL | 78,000 | $8.56 | $668K | — | EDGAR |
| Jul 30, 2026 | Jul 28, 2026 | Anne Evans Kingston INSIDER | OTHER | 3,498 | $8.56 | $30K | — | EDGAR |
Page 1 of 2Next →