Jazz Pharmaceuticals plc (JAZZ) Ownership
JAZZ ownership summary
as of October 18, 2026- Institutions
- 102.3% of shares outstanding
- Insiders
- 2.90% of shares outstanding
- Shares outstanding
- 64.9M
- Float
- 63.0M shares available to trade
- Short interest
- 8.69% 5.5M shares short
- Days to cover
- 7.01 short interest up 17.2% vs prior month
- Institutions 102.32%
- Insiders 2.90%
JAZZ top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 9.19% | 6.0M | $1.25B | +376,903 (+6.7%) | June 30, 2026 |
| 2 | FMR Inc | 7.10% | 4.6M | $969.0M | +2.3M (+102.5%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 4.68% | 3.0M | $638.3M | +52,971 (+1.8%) | June 30, 2026 |
| 4 | Vanguard Capital Management, LLC | 4.21% | 2.7M | $573.9M | +81,317 (+3.1%) | June 30, 2026 |
| 5 | Capital World Investors | 4.16% | 2.7M | $567.1M | +24,234 (+0.9%) | June 30, 2026 |
| 6 | LSV Asset Management | 3.50% | 2.3M | $478.3M | −111,695 (−4.7%) | June 30, 2026 |
| 7 | Franklin Templeton Inc | 3.14% | 2.0M | $428.9M | +81,310 (+4.2%) | June 30, 2026 |
| 8 | State Street Corp | 3.08% | 2.0M | $420.4M | +108,170 (+5.7%) | June 30, 2026 |
| 9 | Dimensional Fund Advisors, Inc. | 2.64% | 1.7M | $360.2M | −181,623 (−9.6%) | June 30, 2026 |
| 10 | Fuller & Thaler Asset Management Inc | 2.52% | 1.6M | $344.5M | −37,598 (−2.2%) | June 30, 2026 |
| 11 | Bank of New York Mellon Corp | 2.43% | 1.6M | $331.7M | −101,358 (−6.0%) | June 30, 2026 |
| 12 | AQR Capital Management LLC | 2.35% | 1.5M | $320.1M | +184,110 (+13.8%) | June 30, 2026 |
| 13 | Geode Capital Management, LLC | 2.28% | 1.5M | $311.8M | +245,414 (+19.8%) | June 30, 2026 |
| 14 | Ameriprise Financial Inc | 1.87% | 1.2M | $255.5M | −392,953 (−24.4%) | June 30, 2026 |
| 15 | JPMorgan Chase & Co | 1.79% | 1.2M | $244.0M | −43,567 (−3.6%) | June 30, 2026 |
| 16 | Bank of America Corp | 1.75% | 1.1M | $238.8M | +121,291 (+12.0%) | June 30, 2026 |
| 17 | Citadel Advisors Llc | 1.55% | 1.0M | $211.6M | −252,768 (−20.1%) | June 30, 2026 |
| 18 | Swedbank AB | 1.49% | 968K | $203.5M | −24,016 (−2.4%) | June 30, 2026 |
| 19 | BNP Paribas Investment Partners SA | 1.23% | 799K | $168.0M | −85,904 (−9.7%) | June 30, 2026 |
| 20 | Millennium Management LLC | 1.18% | 764K | $160.6M | −498,631 (−39.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 3.6M shares and 10 cut 1.7M.
JAZZ top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.56% | 2.3M | $486.1M | −828 (−0.0%) | September 30, 2026 |
| 2 | American Funds Fundamental Invs A | 2.93% | 1.9M | $399.4M | −200,000 (−9.5%) | September 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 2.92% | 1.9M | $397.9M | −5,821 (−0.3%) | August 31, 2026 |
| 4 | FullerThaler Behavioral Sm-Cp Eq R6 | 2.41% | 1.6M | $328.3M | −46,100 (−2.9%) | June 30, 2026 |
| 5 | Vanguard Small Cap Index | 2.14% | 1.4M | $291.9M | +17,096 (+1.2%) | September 30, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.39% | 903K | $189.9M | +32,428 (+3.7%) | September 30, 2026 |
| 7 | Invesco S&P MidCap Momentum ETF | 1.08% | 699K | $147.0M | — | September 30, 2026 |
| 8 | VictoryShares Free Cash Flow ETF | 1.01% | 657K | $138.0M | +465 (+0.1%) | September 30, 2026 |
| 9 | Strategic Advisers Fidelity US TtlStk | 0.89% | 581K | $122.1M | +101,100 (+21.1%) | August 31, 2026 |
| 10 | Franklin DynaTech Fund A | 0.77% | 500K | $105.1M | — | August 31, 2026 |
| 11 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.74% | 480K | $100.9M | +21,130 (+4.6%) | September 30, 2026 |
| 12 | Franklin Biotechnology Discv A(acc)USD | 0.69% | 451K | $94.7M | — | September 30, 2026 |
| 13 | Fidelity Select Biotechnology | 0.63% | 411K | $86.4M | +9,200 (+2.3%) | August 31, 2026 |
| 14 | Fidelity Low-Priced Stock | 0.62% | 400K | $84.2M | +81,500 (+25.6%) | July 31, 2026 |
| 15 | American Funds SMALLCAP World A | 0.62% | 400K | $84.1M | −100,000 (−20.0%) | September 30, 2026 |
| 16 | Fidelity Select Health Care | 0.62% | 400K | $84.1M | +140,000 (+53.8%) | August 31, 2026 |
| 17 | iShares S&P Mid-Cap 400 Growth ETF | 0.58% | 375K | $78.8M | −400 (−0.1%) | September 30, 2026 |
| 18 | Fidelity Balanced | 0.56% | 366K | $77.0M | −283 (−0.1%) | July 31, 2026 |
| 19 | JPMorgan Mid Cap Value L | 0.56% | 364K | $76.5M | −63,948 (−15.0%) | August 31, 2026 |
| 20 | State Street SPDR Port S&P 400 Md CpETF | 0.53% | 343K | $72.2M | −480 (−0.1%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
JAZZ insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-01 | Bruce C Cozadd | Sell | $190.50 | 6,000 | $1.1M |
| 2026-03-09 | Patricia Carr | Sell | $182.94 | 1,287 | $235,444 |
| 2026-02-27 | Norbert G Riedel | Sell | $192.00 | 3,415 | $655,680 |
| 2026-02-27 | Patricia Carr | Sell | $190.91 | 1,117 | $213,246 |
| 2026-02-26 | Mary Elizabeth Henderson | Sell | $194.49 | 5,343 | $1.0M |
| 2026-02-26 | Neena M Patil | Sell | $191.56 | 55,600 | $10.7M |
| 2026-02-26 | Patricia Carr | Sell | $194.11 | 1,253 | $243,220 |
| 2025-12-09 | Mary Elizabeth Henderson | Sell | $169.51 | 2,238 | $379,363 |
| 2025-12-05 | Patricia Carr | Sell | $171.20 | 4,660 | $797,792 |
| 2025-11-26 | Bruce C Cozadd | Sell | $177.81 | 77,500 | $13.8M |
| 2025-11-20 | Heather Ann Mcsharry | Sell | $177.78 | 3,415 | $607,119 |
| 2025-11-18 | Bruce C Cozadd | Sell | $181.09 | 18,000 | $3.3M |
| 2025-11-18 | Rick E Winningham | Sell | $180.86 | 5,500 | $994,730 |
| 2025-11-18 | Patricia Carr | Sell | $182.06 | 5,319 | $968,377 |
| 2025-11-17 | Robert Iannone | Sell | $168.26 | 7,159 | $1.2M |
| 2025-10-03 | Bruce C Cozadd | Sell | $140.00 | 3,500 | $490,000 |
| 2025-10-01 | Bruce C Cozadd | Sell | $131.78 | 2,000 | $263,560 |
| 2025-09-02 | Bruce C Cozadd | Sell | $128.62 | 6,000 | $771,720 |
| 2025-07-01 | Bruce C Cozadd | Sell | $107.63 | 1,000 | $107,630 |
| 2025-06-02 | Bruce C Cozadd | Sell | $107.90 | 500 | $53,950 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
JAZZ shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns JAZZ
Institutional investors own 102.3% of Jazz Pharmaceuticals's shares and insiders 2.90%. The largest holder is BlackRock Inc with 9.19% of the shares (6.0M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 10 reduced their stake in the latest filings. Short interest is 8.69% of the float, or 7.01 days of average trading volume. The share count fell 3.0% since 2014.
Related: JAZZ analyst forecast, JAZZ key metrics. See the JAZZ stock overview for the latest quote and news.
JAZZ ownership FAQ
Who owns the most Jazz Pharmaceuticals stock?
The largest shareholders of Jazz Pharmaceuticals are BlackRock Inc (9.19%), FMR Inc (7.10%), Vanguard Portfolio Management, LLC (4.68%), Vanguard Capital Management, LLC (4.21%), Capital World Investors (4.16%).
What percentage of Jazz Pharmaceuticals is owned by institutions?
Institutions hold 102.3% of Jazz Pharmaceuticals's shares outstanding; insiders hold 2.90%.
Which funds own Jazz Pharmaceuticals?
The largest fund holders of Jazz Pharmaceuticals are iShares Core S&P Mid-Cap ETF (3.56%), American Funds Fundamental Invs A (2.93%), Vanguard MStar Total Stk Mkt Idx Invest (2.92%), FullerThaler Behavioral Sm-Cp Eq R6 (2.41%), Vanguard Small Cap Index (2.14%).
What is Jazz Pharmaceuticals's short interest?
5.5M shares of Jazz Pharmaceuticals were sold short, 8.69% of the float; at the average daily volume it would take 7.01 days to cover.
Are insiders buying or selling Jazz Pharmaceuticals?
Of the latest 20 reported insider transactions in Jazz Pharmaceuticals (since June 2, 2025), 0 were purchases and 20 were sales.
How many shares of Jazz Pharmaceuticals are outstanding?
Jazz Pharmaceuticals has 64.9M shares outstanding, of which 63.0M are in the public float.