Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in JAZZ held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.6M | $1.06B | +2.6% | 8.913% | 0.02% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.0M | $564.0M | β | 4.755% | 0.03% |
| 3 | Capital World Investors | 2.7M | $505.4M | +0.3% | 4.261% | 0.07% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.6M | $500.7M | β | 4.221% | 0.01% |
| 5 | FMR LLC | 2.3M | $430.2M | +184.1% | 3.627% | 0.02% |
| 6 | FRANKLIN RESOURCES INC | 2.0M | $370.3M | +7.7% | 3.122% | 0.09% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 1.9M | $358.3M | -27.8% | 3.021% | 0.07% |
| 8 | STATE STREET CORP | 1.9M | $357.6M | +2.9% | 3.015% | 0.01% |
| 9 | EcoR1 Capital, LLC | 1.7M | $322.6M | 0.0% | 2.720% | 13.69% |
| 10 | Bank of New York Mellon Corp | 1.7M | $317.5M | +44.5% | 2.677% | 0.06% |
| 11 | FULLER & THALER ASSET MANAGEMENT, INC. | 1.7M | $316.9M | -0.1% | 2.672% | 1.07% |
| 12 | AMERIPRISE FINANCIAL INC | 1.6M | $304.1M | +5.7% | 2.564% | 0.07% |
| 13 | CITADEL ADVISORS LLC | 1.3M | $254.1M | +232.4% | 2.142% | 0.12% |
| 14 | AQR CAPITAL MANAGEMENT LLC | 1.3M | $249.9M | +52.6% | 2.133% | 0.11% |
| 15 | MILLENNIUM MANAGEMENT LLC | 1.3M | $243.5M | +5.7% | 2.053% | 0.16% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 1.2M | $234.0M | +3.4% | 1.973% | 0.01% |
| 17 | BANK OF AMERICA CORP /DE/ | 1.0M | $191.8M | +10.9% | 1.617% | 0.01% |
| 18 | Swedbank AB | 992K | $187.6M | -10.1% | 1.581% | 0.20% |
| 19 | BNP Paribas Asset Management Holding S.A. | 885K | $167.3M | +25.4% | 1.411% | 0.19% |
| 20 | RENAISSANCE TECHNOLOGIES LLC | 819K | $154.9M | -2.1% | 1.306% | 0.24% |
| 21 | Holocene Advisors, LP | 734K | $138.7M | +24.4% | 1.170% | 0.33% |
| 22 | MORGAN STANLEY | 699K | $132.1M | +9.3% | 1.114% | 0.01% |
| 23 | Allianz Asset Management GmbH | 610K | $115.4M | +1.9% | 0.973% | 0.12% |
| 24 | Sofinnova Investments, Inc. | 598K | $113.1M | -37.7% | 0.954% | 5.92% |
| 25 | GMT CAPITAL CORP | 581K | $109.8M | -9.0% | 0.926% | 5.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in JAZZ β a direct measure of their conviction.
Filings activity in JAZZ during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new JAZZ position in Q1 2026
Institutions that fully closed their JAZZ position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 559 | +0.0% | 77.97% | +11.36 pp | $11.28B | +17% |
| Q4 2025 | 559 | +16% | 66.61% | +16.15 pp | $9.64B | +32% |
| Q3 2025 | 483 | 2.0% | 50.46% | +8.32 pp | $7.30B | +20% |
| Q2 2025 | 493 | 7.2% | 42.14% | 3.68 pp | $6.10B | 8.0% |
| Q1 2025 | 531 | +7.9% | 45.82% | +2.24 pp | $6.63B | +5.1% |
| Q4 2024 | 492 | +7.0% | 43.58% | +5.75 pp | $6.30B | +15% |
| Q3 2024 | 460 | +5.0% | 37.83% | 2.11 pp | $5.47B | 5.3% |
| Q2 2024 | 438 | β | 39.94% | β | $5.78B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying JAZZ stock.
Based on Q1 2026 13F filings, institutional ownership of Jazz Pharmaceuticals plc stands at 78.0%, held across 559 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of JAZZ, with approximately 5,591,700 shares worth $1.06B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of JAZZ, including CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for JAZZ is 71 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
96 institutions opened new positions in JAZZ during Q1 2026, while 96 fully exited. 370 added to existing positions and 91 trimmed.
JAZZ institutional ownership rose by 11.36 percentage points quarter-over-quarter, with a net change of +0 holders.
The top 10 institutions account for 42.4% of all reported 13F value in JAZZ, and the top 25 account for 68.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Jazz Pharmaceuticals plc (JAZZ) Institutional Ownership