SCULLY WILLIAM P purchased 6.7% of their position (50K shares) of PROTHENA CORP PUBLIC LTD CO on the open market
Open‑market purchase worth $439.4K — a moderate purchase. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 8/21/2026ACC: 0001045463-26-000014
10% Owner
Since Dec 2024
+50K
Net shares
Net buyer
$439.4K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
50K acquired
Non-Derivative Transactions1
Ordinary Shares, par value $0.01 per share
Direct
Shares
+50K
Price / share
$8.79
Trade value
$439.43K
% of position
6.7%
8/20/2026
750K→800K
Total
Net shares
+50K
Net value
$439.43K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Ordinary Shares, par value $0.01 per share Direct | 8/20/2026 | P · Purchase | +50K | $8.79 | $439.43K | 6.7% | 750K | 800K |
| Total | +50K | $439.43K | ||||||
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
IndirectShares owned83.50K
Total
135.50K indirect135.50K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Ordinary Shares, par value $0.01 per share | 52K | Indirect |
| Ordinary Shares, par value $0.01 per share | 83.50K | Indirect |
| Total | 135.50K | 135.50K indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported