SCULLY WILLIAM P purchased 124.0% of their position (103.50K shares) of PROTHENA CORP PUBLIC LTD CO on the open market
Open‑market purchase worth $889.9K — a major conviction buy. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 9/29/2026ACC: 0001045463-26-000017
10% Owner
Since Dec 2024
+103.50K
Net shares
Net buyer
$889.9K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
103.50K acquired
Non-Derivative Transactions1
Ordinary Shares, par value $0.01 per share
Indirect
Shares
+103.50K
Price / share
$8.60
Trade value
$889.87K
% of position
124.0%
9/28/2026
83.50K→187K
Total
Net shares
+103.50K
Net value
$889.87K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Ordinary Shares, par value $0.01 per share Indirect | 9/28/2026 | P · Purchase | +103.50K | $8.60 | $889.87K | 124.0% | 83.50K | 187K |
| Total | +103.50K | $889.87K | ||||||
Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2
Ordinary Shares, par value $0.01 per share
IndirectShares owned52K
Ordinary Shares, par value $0.01 per share
DirectShares owned927K
Total
927K direct·52K indirect979K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Ordinary Shares, par value $0.01 per share | 52K | Indirect |
| Ordinary Shares, par value $0.01 per share | 927K | Direct |
| Total | 979K | 927K direct·52K indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported