Jazz Pharmaceuticals (JAZZ) Held by Superinvestors
Jazz Pharmaceuticals plc (JAZZ) is currently held by 4 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $151.48M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of JAZZ tracked by InsiderSet, reporting ownership valued at approximately $135.44M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $120.28M, representing an estimated loss of -11.19% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed JAZZ value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Tweedy, Browne Co All Funds (US), Sequoia Financial Advisors, and several other long-term asset managers with concentrated positions in Jazz Pharmaceuticals plc (JAZZ).
This page ranks the largest institutional JAZZ shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.19% | 562,073 | $135,442,731 | $120,283,622 | -$15,159,109 | -11.19% |
| Tweedy, Browne Co All Funds (US) | B. Tweedy, Ch. Browne | 1.10% | 60,149 | $14,494,105 | $12,871,886 | -$1,622,219 | -11.19% |
| Sequoia Financial Advisors | 0.01% | 4,527 | $1,090,985 | $968,778 | -$122,207 | -11.20% | |
| Polen Capital Management | David M. Polen | 0.00% | 1,858 | $447,722 | $397,612 | -$50,110 | -11.19% |
Frequently asked questions about JAZZ
Who are the largest superinvestors holding JAZZ?
The largest superinvestors holding JAZZ in the latest SEC Form 13F filings include Renaissance Technologies LLC, Tweedy, Browne Co All Funds (US), Sequoia Financial Advisors, and Polen Capital Management. InsiderSet ranks these superinvestors by their latest reported JAZZ position.
What does the JAZZ superinvestors page include?
This page tracks JAZZ positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. Jazz Pharmaceuticals plc (JAZZ) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold JAZZ?
InsiderSet currently tracks 4 superinvestors reporting JAZZ holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own JAZZ.
How much JAZZ stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $151.48M in JAZZ holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were JAZZ superinvestor holdings last updated?
The latest JAZZ superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor JAZZ holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its JAZZ position after the reporting date.
Are superinvestors buying or selling JAZZ?
Buying and selling can be analyzed by comparing JAZZ positions across consecutive 13F reporting periods. InsiderSet's JAZZ Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View JAZZ ownership changes.
How have superinvestor JAZZ holdings changed over time?
InsiderSet tracks JAZZ holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.