PRTA PROTHENA CORP PUBLIC LTD CO

NEUTRAL Impact: 2/10 3
Horizon immediate Filed May 14, 2026 Processed 9d 3h ago SEC 0001045463-26-000003
Form 3 — initial insider ownership statement

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Executive Summary

William P. Scully filed a Form 3 initial statement of beneficial ownership, disclosing 736,000 ordinary shares held directly, 80,000 shares held by Manatee Equity Fund LLC, and 52,000 shares held by spouse. This is a routine administrative filing triggered by Scully's appointment as a director or officer, with no material financial impact.

Actionable Insight

No trading signal. Monitor future Form 4 filings for any open-market purchases or sales by Scully, which would provide insight into insider sentiment.

Key Facts

  • William P. Scully filed Form 3 initial statement of beneficial ownership on 2026-05-14, reporting period 2026-05-07.
  • Direct holdings: 736,000 ordinary shares.
  • Indirect holdings: 80,000 shares via Manatee Equity Fund LLC, 52,000 shares via spouse.
  • Power of Attorney executed 2025-09-04 appointing Reid E. Buchanan, Diana L. Hayes, and Todd W. Fennell as attorneys-in-fact for SEC filings.

Financial Impact

No financial impact; Form 3 is a routine initial ownership disclosure.

Risk Factors

  • None from this filing; insider selling via Form 4 in the future could signal bearish sentiment.

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Analyst Consensus
67% bullish (12 analysts)

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
3 Filing (Primary)0001045463-26-000003
Document: 0001045463-26-000003-index-headers.html0001045463-26-000003
Document: 0001045463-26-000003-index.html0001045463-26-000003
Document: 0001045463-26-000003.txt0001045463-26-000003
4 reports for PRTA
Performance horizon

Track record builds as more directional reports settle.

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Reports for PRTA — sortable, filterable
Type Now
May 14, 2026
9d ago
3
NEUTRAL ★ 2/10
awaiting T+5
May 7, 2026
16d ago
8-K
BULLISH ★ 8/10
$10.73 $9.86▼ −8.11%▼ −9.57%$9.83 (−8.39%)
Mar 27, 2026
8w ago
DEFA14A
NEUTRAL ★ 3/10
$9.25 $10.36▲ +12.00%▲ +7.70%$9.83 (+6.27%)
Mar 3, 2026
11w ago
EFFECT
NEUTRAL ★ 3/10
$9.36 $9.77▲ +4.38%▲ +4.86%$9.83 (+5.02%)
Showing 4 of 4

US Market Status

Market Closed — Opens Tue (35h 15m)

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