SCULLY WILLIAM P bought PRTA

June 11, 2026 · Form 4 insider transaction

SCULLY WILLIAM P bought 125,000 shares of Prothena Corporation plc at $8.17 per share, a transaction worth $1.02M. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Acquired (buy-side)
Shares
125,000
Price
$8.17
Total value
$1.02M
Role
SecurityOrdinary Shares, par value $0.01 per share
Transaction codeP: Open-market purchase
Transaction dateJune 11, 2026
Filing dateJune 12, 2026
Shares owned after1,061,000
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.8400 to $8.4300, inclusive. The reporting person undertakes to provide to Prothena Corp Public Ltd Co, any security holder of Prothena Corp Public Ltd Co, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

View the original Form 4 on SEC EDGAR