SCULLY WILLIAM P bought PRTA

May 22, 2026 · Form 4 insider transaction

SCULLY WILLIAM P bought 100,000 shares of Prothena Corporation plc at $9.81 per share, a transaction worth $981.3K. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Acquired (buy-side)
Shares
100,000
Price
$9.81
Total value
$981.3K
Role
SecurityOrdinary Shares, par value $0.01 per share
Transaction codeP: Open-market purchase
Transaction dateMay 22, 2026
Filing dateMay 26, 2026
Shares owned after836,000
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 $9.5499 to $9.9750, 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