Jazz Pharmaceuticals plc
US ˙ NasdaqGS ˙ IE00B4Q5ZN47

SecurityJAZZ / Jazz Pharmaceuticals plc
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,895,215 shares
Latest Disclosed Value $ 358,264,016
Dimensional Fund Advisors Lp reports 27.75% decrease in ownership of JAZZ / Jazz Pharmaceuticals plc

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,895,215 shares of Jazz Pharmaceuticals plc (US:JAZZ) valued at $358,290,396 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,623,303 shares of Jazz Pharmaceuticals plc. This represents a change in shares of -27.75% during the quarter. The current value of the position is $437,662,000 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)
2026-05-07 2026-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,895,215 -728,088 -27.75 358,264 -19.67 0.0160
2026-02-12 2025-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 2,623,303 -213,349 -7.52 445,965 19.29 0.0935
2025-11-12 2025-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 2,836,652 298,815 11.77 373,855 38.81 0.0802
2025-08-12 2025-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 2,537,837 209,407 8.99 269,322 -6.83 0.0624
2025-05-13 2025-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 2,328,430 293,360 14.42 289,066 15.34 0.0719
2025-02-13 2024-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 2,035,070 320,724 18.71 250,619 31.22 0.0602
2024-11-07 2024-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,714,346 492,148 40.27 190,993 46.42 0.0463
2024-08-09 2024-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,222,198 398,549 48.39 130,447 31.52 0.0341
2024-05-10 2024-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 823,649 57,803 7.55 99,184 5.29 0.0269
2024-02-07 2023-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 765,846 -29,766 -3.74 94,200 -8.53 0.0275
2023-11-09 2023-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 795,612 -26,311 -3.20 102,989 1.08 0.0338
2023-08-09 2023-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 821,923 -18,080 -2.15 101,894 -17.10 0.0325
2023-05-12 2023-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 840,003 2,441 0.29 122,914 92,316.54 0.0414
2023-02-09 2022-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 837,562 -115,228 -12.09 133 -99.90 0.0394
2022-11-10 2022-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 952,790 -51,601 -5.14 126,996 -18.95 0.0488
2022-08-12 2022-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,004,391 -5,007 -0.50 156,692 -0.28 0.0562
2022-05-13 2022-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 1,009,398 13,237 1.33 157,138 23.82 0.0484
2022-02-09 2021-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 996,161 53,045 5.62 126,913 3.34 0.0384
2021-11-12 2021-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 943,116 48,936 5.47 122,808 -22.69 0.0396
2021-08-12 2021-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 894,180 -4,388 -0.49 158,845 7.54 0.0503
2021-05-14 2021-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 898,568 13,878 1.57 147,704 1.16 0.0489
2021-03-08 2020-12-31 13F/A-2 JAZZ PHARMACEUTICALS CLA G50871105 884,690 -4,329 -0.49 146,017 15.20 0.0527
2021-02-11 2020-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 884,690 -4,329 146,017 52,733.5792
2020-11-12 2020-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 889,019 -35,215 -3.81 126,753 24.30 0.0538
2020-08-13 2020-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 924,234 -37,668 -3.92 101,973 6.29 0.0448
2020-05-14 2020-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 961,902 -7,312 -0.75 95,936 -33.69 0.0500
2020-02-14 2019-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 969,214 75,390 8.43 144,681 26.33 0.0527
2019-11-12 2019-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 893,824 152,340 20.55 114,530 8.37 0.0445
2019-08-13 2019-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 741,484 139,406 23.15 105,680 22.81 0.0410
2019-08-12 2019-03-31 13F/A-2 JAZZ PHARMACEUTICALS CLA G50871105 602,078 139,415 30.13 86,053 50.06 0.0343
2019-05-10 2019-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 602,078 139,415 86,053
2019-02-26 2018-12-31 13F/A-1 JAZZ PHARMACEUTICALS CLA G50871105 462,663 160,124 52.93 57,345 12.75 0.0260
2019-02-13 2018-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 462,663 160,124 57,345
2018-11-13 2018-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 302,539 11,988 4.13 50,861 1.59 0.0194
2018-08-10 2018-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 290,551 -1,299 -0.45 50,066 13.62 0.0200
2018-05-11 2018-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 291,850 37,486 14.74 44,066 28.64 0.0184
2018-02-12 2017-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 254,364 7,194 2.91 34,254 -5.25 0.0142
2017-11-13 2017-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 247,170 17,272 7.51 36,151 1.12 0.0158
2017-08-11 2017-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 229,898 75,703 49.10 35,750 59.76 0.0165
2017-05-12 2017-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 154,195 6,684 4.53 22,378 39.15 0.0107
2017-02-09 2016-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 147,511 408 0.28 16,082 -10.02 0.0080
2016-11-10 2016-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 147,103 25,467 20.94 17,872 3.98 0.0097
2016-08-09 2016-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 121,636 -343 -0.28 17,188 7.99 0.0099
2016-05-13 2016-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 121,979 6,377 5.52 15,916 -2.07 0.0095
2016-02-10 2015-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 115,602 2,649 2.35 16,252 8.39 0.0101
2015-11-13 2015-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 112,953 14,952 15.26 14,994 -13.08 0.0098
2015-08-14 2015-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 98,001 10,836 12.43 17,250 14.53 0.0106
2015-05-14 2015-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 87,165 -124 -0.14 15,062 5.39 0.0095
2015-02-06 2014-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 87,289 552 0.64 14,292 2.61 0.0094
2014-11-13 2014-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 86,737 -108,830 -55.65 13,929 -51.55 0.0099
2014-08-08 2014-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 195,567 -1,079 -0.55 28,748 5.42 0.0200
2014-05-14 2014-03-31 13F JAZZ PHARMACEUTICALS CLA G50871105 196,646 200 0.10 27,271 9.69 0.0204
2014-02-12 2013-12-31 13F JAZZ PHARMACEUTICALS CLA G50871105 196,446 -21 -0.01 24,863 37.64 0.0194
2013-11-13 2013-09-30 13F JAZZ PHARMACEUTICALS CLA G50871105 196,467 9,783 5.24 18,064 40.78 0.0156
2013-08-15 2013-06-30 13F JAZZ PHARMACEUTICALS CLA G50871105 186,684 186,684 12,831 0.0121
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.