SCULLY WILLIAM P purchased 13.6% of their position (100K shares) of PROTHENA CORP PUBLIC LTD CO on the open market
Open‑market purchase worth $981.3K — a moderate purchase. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 5/26/2026ACC: 0001045463-26-000004
10% Owner
Since Dec 2024
+100K
Net shares
Net buyer
$981.3K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
100K acquired
Non-Derivative Transactions1
Ordinary Shares, par value $0.01 per share
Direct
Shares
+100K
Price / share
$9.81
Trade value
$981.30K
% of position
13.6%
5/22/2026
736K→836K
Total
Net shares
+100K
Net value
$981.30K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Ordinary Shares, par value $0.01 per share Direct | 5/22/2026 | P · Purchase | +100K | $9.81 | $981.30K | 13.6% | 736K | 836K |
| Total | +100K | $981.30K | ||||||
Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2
Ordinary Shares, par value $0.01 per share
IndirectShares owned80K
Ordinary Shares, par value $0.01 per share
IndirectShares owned52K
Total
132K indirect132K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Ordinary Shares, par value $0.01 per share | 80K | Indirect |
| Ordinary Shares, par value $0.01 per share | 52K | Indirect |
| Total | 132K | 132K indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported