Summary
Updated Aug 30, 2026
Seamus Mulligan is Director of Jazz Pharmaceuticals plc (JAZZ). 4 SEC Form 4 filings on record going back to 2025, most recently on 7 August 2026. Most recent open-market trade: bought $167K of JAZZ on 13 May 2025. Lifetime open-market purchases: $9.99M. Historical track record: 5/5 stars across 4 tracked purchases.
Recent Transactions
7Every recent SEC Form 4 transaction Seamus Mulligan has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★★★ (5/5) |
| Total purchases tracked | 4 |
| Purchases with forward-return data | 4 |
| 30-day win rate | 100% |
| 90-day win rate | 100% |
| Avg 5-day return | +8.25% |
| Avg 30-day return | +12.48% |
| Avg 90-day return | +12.70% |
| Best 30-day return | +14.41% |
Trading Pattern
InsiderAlpha's records for Seamus Mulligan go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $2.50M (4 buys totaling $9.99M). The largest single buy on record is $7.92M of JAZZ in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Seamus Mulligan files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Bruce C. Cozadd - $26.42M of JAZZ open-market activity in the last 12 months
- Neena M. Patil - $11.21M of JAZZ open-market activity in the last 12 months
- Patricia Carr - $1.66M of JAZZ open-market activity in the last 12 months
- Rick E. Winningham - $1.66M of JAZZ open-market activity in the last 12 months
- Samantha Pearce - $1.63M of JAZZ open-market activity in the last 12 months
- Robert Iannone - $1.20M of JAZZ open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Seamus Mulligan?
Seamus Mulligan is a corporate insider, tracked as Director of Jazz Pharmaceuticals plc (JAZZ). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Seamus Mulligan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Seamus Mulligan been buying or selling stock?
Recorded transactions: 4 open-market purchases ($9.99M) and 0 open-market sales across all tracked filings.
How accurate is Seamus Mulligan's historical track record?
Across 4 tracked purchases, Seamus Mulligan averaged +12.5% avg 30-day return with a 100% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
Where can I see all of Seamus Mulligan's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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