Jazz Pharmaceuticals JAZZ Institutional Ownership

Updated Oct 16, 2026

Jazz Pharmaceuticals plc (NASDAQ:JAZZ) appeared in the 13F filings of 639 institutional investors for the quarter ended June 30, 2026.

• These investors held 99.05% of Jazz Pharmaceuticals' outstanding shares at the end of Q2 2026.
• Total holdings of JAZZ shares fell 1.09% from Q1 2026, and the holder count rose 28.83% from Q2 2025.
• Of these 639 holders, 369 added to their positions, 186 reduced their stakes and 84 left their positions unchanged.
• In total, institutional investors held 64.3Mn shares of Jazz Pharmaceuticals at the end of Q2 2026, down 710.52K from the prior quarter and up 4.06Mn from a year earlier.
• As of June 30, 2026, the biggest holder of Jazz Pharmaceuticals was BlackRock, Inc. with 5.97Mn shares, or 9.19% of shares outstanding.
• The largest position increases in JAZZ for Q2 2026 were by FMR LLC (+2.33Mn shares), Mariner, LLC (+568.6K shares), Victory Capital Management Inc (+430.12K shares), UBS Group AG (+399.66K shares) and Two Sigma Investments, LP (+380.61K shares).
• Holders that trimmed the most shares of Jazz Pharmaceuticals in Q2 2026 while keeping a position were Holocene Advisors, LP (-572.91K shares), Millennium Management LLC (-498.63K shares), Ameriprise Financial Inc (-392.95K shares), Pacer Advisors, Inc. (-356.75K shares) and Assenagon Asset Management S.A. (-309.43K shares).
• According to Business Quant data, the leading holders of JAZZ for Q2 2026 were BlackRock, Inc. (5.97Mn shares), FMR LLC (4.61Mn shares), Vanguard Portfolio Management LLC (3.04Mn shares), Vanguard Capital Management LLC (2.73Mn shares), Capital World Investors (2.7Mn shares), LSV Asset Management (2.28Mn shares), Franklin Templeton Inc (2.04Mn shares), State Street Corp (2Mn shares), Dimensional Fund Advisors LP (1.71Mn shares) and Fuller & Thaler Asset Management, Inc. (1.64Mn shares).