Jazz Pharmaceuticals plc
US ˙ NasdaqGS ˙ IE00B4Q5ZN47

SecurityJAZZ / Jazz Pharmaceuticals plc
InstitutionNorthern Trust Corp
Latest Disclosed Ownership488,522 shares
Latest Disclosed Value $ 92,355,085
Northern Trust Corp reports 2.44% increase in ownership of JAZZ / Jazz Pharmaceuticals plc

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 488,522 shares of Jazz Pharmaceuticals plc (US:JAZZ) valued at $92,355,084 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 476,871 shares of Jazz Pharmaceuticals plc. This represents a change in shares of 2.44% during the quarter. The current value of the position is $117,274,591 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 488,522 11,651 2.44 92,355 13.92 0.0025
2026-02-17 2025-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 476,871 -26,679 -5.30 81,068 22.15 0.0021
2025-11-14 2025-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 503,550 -222 -0.04 66,368 24.14 0.0019
2025-08-13 2025-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 503,772 -21,391 -4.07 53,460 -18.00 0.0074
2025-05-13 2025-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 525,163 3,967 0.76 65,199 1.58 0.0097
2025-02-14 2024-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 521,196 82,817 18.89 64,185 31.42 0.0091
2024-11-13 2024-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 438,379 -84,300 -16.13 48,840 -12.45 0.0080
2024-08-14 2024-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 522,679 -22,606 -4.15 55,786 -15.04 0.0094
2024-05-14 2024-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 545,285 -63,634 -10.45 65,663 -12.33 0.0113
2024-02-13 2023-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 608,919 -11,774 -1.90 74,897 -6.78 0.0136
2023-11-13 2023-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 620,693 46,830 8.16 80,343 12.93 0.0156
2023-08-11 2023-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 573,863 -42,308 -6.87 71,142 -21.10 0.0137
2023-05-15 2023-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 616,171 16,321 2.72 90,164 -5.65 0.0179
2023-02-13 2022-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 599,850 -7,962 -1.31 95,562 17.96 0.0201
2022-11-14 2022-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 607,812 1,226 0.20 81,015 -14.39 0.0185
2022-08-12 2022-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 606,586 -7,439 -1.21 94,634 -0.99 0.0203
2022-05-13 2022-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 614,025 -7,118 -1.15 95,585 20.79 0.0168
2022-02-08 2021-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 621,143 -10,688 -1.69 79,134 -3.81 0.0130
2021-11-15 2021-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 631,831 28,672 4.75 82,271 -23.22 0.0146
2021-08-13 2021-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 603,159 35,795 6.31 107,145 14.89 0.0189
2021-05-12 2021-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 567,364 42,696 8.14 93,257 7.69 0.0173
2021-02-11 2020-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 524,668 2,772 0.53 86,597 16.37 0.0169
2020-11-16 2020-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 521,896 154,713 42.14 74,418 83.68 0.0163
2020-08-14 2020-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 367,183 -14,140 -3.71 40,515 6.53 0.0096
2020-05-14 2020-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 381,323 -1,855 -0.48 38,033 -33.51 0.0109
2020-02-14 2019-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 383,178 -74,681 -16.31 57,200 -2.51 0.0128
2019-11-13 2019-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 457,859 41,160 9.88 58,671 -1.23 0.0140
2019-08-13 2019-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 416,699 7,723 1.89 59,404 1.61 0.0141
2019-05-13 2019-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 408,976 22,890 5.93 58,463 22.15 0.0144
2019-02-12 2018-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 386,086 31,303 8.82 47,861 -19.76 0.0134
2018-11-14 2018-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 354,783 2,230 0.63 59,649 -1.81 0.0146
2018-09-18 2018-06-30 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 352,553 120,736 52.08 60,746 73.56 0.0154
2018-08-14 2018-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 356,367 124,550 61,403
2018-05-09 2018-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 231,817 12,252 5.58 35,001 18.38 0.0091
2018-02-14 2017-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 219,565 -2,361 -1.06 29,566 -8.91 0.0075
2017-11-13 2017-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 221,926 229 0.10 32,457 -5.85 0.0085
2017-08-11 2017-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 221,697 3,396 1.56 34,474 8.81 0.0096
2017-05-12 2017-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 218,301 5,398 2.54 31,683 36.49 0.0091
2017-02-13 2016-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 212,903 -7,082 -3.22 23,213 -13.14 0.0071
2016-11-09 2016-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 219,985 -23,896 -9.80 26,725 -22.45 0.0083
2016-08-12 2016-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 243,881 -112,478 -31.56 34,461 -26.13 0.0112
2016-08-19 2016-03-31 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 356,359 -52,778 -12.90 46,654 -18.88 0.0155
2016-05-13 2016-03-31 13F Jazz Pharmaceuticals Pl COMM G50871105 356,356 46,523
2016-02-12 2015-12-31 13F Jazz Pharmaceuticals Pl COMM G50871105 409,137 8,331 2.08 57,509 8.04 0.0191
2015-11-12 2015-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 400,806 400,806 0.00 53,231 0.0178
2015-08-13 2015-06-30 13F Jazz Pharmaceuticals Pl COMM G50871105 0 -464,645 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Jazz Pharmaceuticals Pl COMM G50871105 464,645 91,071 24.38 80,286 31.26 0.0241
2015-02-12 2014-12-31 13F Jazz Pharmaceuticals Pl COM G50871105 373,574 107,718 40.52 61,165 43.29 0.0185
2014-11-13 2014-09-30 13F Jazz Pharmaceuticals Pl COMM G50871105 265,856 25,887 10.79 42,686 21.00 0.0134
2014-08-14 2014-06-30 13F JAZZ PHARMACEUTICALS com G50871105 239,969 29,700 14.12 35,278 20.98 0.0110
2014-05-14 2014-03-31 13F JAZZ PHARMACEUTICALS COMM G50871105 210,269 -35,794 -14.55 29,160 -6.36 0.0092
2014-02-21 2013-12-31 13F/A-1 JAZZ PHARMACEUTICALS COM G50871105 246,063 -29,971 -10.86 31,142 22.67 0.0100
2014-02-12 2013-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 246,063 31,142
2013-11-13 2013-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 276,034 -270,370 -49.48 25,387 -32.40 0.0089
2013-08-09 2013-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 546,404 546,404 37,555 0.0136
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.