SCULLY WILLIAM P
SEC insider (Form 3/4/5 filer). CIK 0001045463. 10% Owner at PROTHENA CORP PUBLIC LTD CO (PRTA). 36 reported Form 4/5 transactions since Sep 2024; latest on Oct 23, 2026. Located in VERO BEACH, FL.
Companies SCULLY WILLIAM P has filed insider reports for
- PROTHENA CORP PUBLIC LTD CO (PRTA): 10% Owner
SCULLY WILLIAM P
CIK: 0001045463
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
PROTHENA CORP PUBLIC LTD CO
Discretionary Trading P&L
Holdings
Transaction History (36 total)
- Oct 23, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseDirect50K shares at avg. $8.07$404K - Oct 22, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseDirect100K shares at avg. $8.19$819K - Oct 14, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseDirect10K shares at avg. $8.46$85K - Oct 13, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseDirect100K shares at avg. $8.35$835K - Oct 8, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseIndirect90K shares at avg. $8.57$771K - Oct 7, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseIndirect125K shares at avg. $8.40$1.1M - Oct 2, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseIndirect100K shares at avg. $8.57$857K - Sep 29, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseIndirect162K shares at avg. $8.68$1.4M - Sep 28, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseIndirect103.5K shares at avg. $8.60$890K - Sep 18, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
PurchaseDirect100K shares at avg. $8.43$843K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 23, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 50,000 | $8.07 | $403,525 | Direct |
| Oct 22, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 100,000 | $8.19 | $818,520 | Direct |
| Oct 14, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 10,000 | $8.46 | $84,569 | Direct |
| Oct 13, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 100,000 | $8.35 | $835,480 | Direct |
| Oct 8, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 90,000 | $8.57 | $770,904 | Indirect |
| Oct 7, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 125,000 | $8.40 | $1,050,150 | Indirect |
| Oct 2, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 100,000 | $8.57 | $857,240 | Indirect |
| Sep 29, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 162,000 | $8.68 | $1,405,674 | Indirect |
| Sep 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 103,500 | $8.60 | $889,872 | Indirect |
| Sep 18, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Purchase | 100,000 | $8.43 | $843,460 | Direct |
1-10 of 36 transactions