재즈 파마슈티컬스 plc
US ˙ NasdaqGS ˙ IE00B4Q5ZN47

SecurityJAZZ / Jazz Pharmaceuticals plc
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership24,000 shares
Latest Disclosed Value $ 4,535,760
Janus Henderson Group Plc ownership in JAZZ / Jazz Pharmaceuticals plc

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 24,000 shares of Jazz Pharmaceuticals plc (US:JAZZ) valued at $4,537,200 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,000 shares of Jazz Pharmaceuticals plc. This represents a change in shares of 0.00% during the quarter. The current value of the position is $5,761,440 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)
2026-05-18 2026-03-31 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 24,000 0 0.00 4,536 11.15 0.0008
2026-05-15 2026-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 24,000 0 0.00 4,536 11.15 0.0008
2026-02-17 2025-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 24,000 -1,300 -5.14 4,080 22.41 0.0018
2025-11-14 2025-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 25,300 0 0.00 3,333 24.18 0.0015
2025-08-14 2025-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 25,300 0 0.00 2,685 -13.67 0.0013
2025-05-15 2025-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 25,300 -1,900 -6.99 3,109 -7.11 0.0017
2025-02-14 2024-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 27,200 0 0.00 3,348 10.50 0.0017
2024-11-14 2024-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 27,200 0 0.00 3,029 4.30 0.0016
2024-08-14 2024-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 27,200 20,920 333.12 2,904 284.64 0.0016
2024-05-15 2024-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,280 0 0.00 756 -2.20 0.0004
2024-02-14 2023-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,280 -49 -0.77 772 -5.74 0.0005
2023-11-14 2023-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,329 -315,871 -98.04 819 -97.95 0.0005
2023-08-14 2023-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 322,200 -360,773 -52.82 39,943 -60.03 0.0248
2023-05-15 2023-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 682,973 -413,870 -37.73 99,939 -42.81 0.0659
2023-02-14 2022-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,096,843 -142,057 -11.47 174,738 5.82 0.1248
2023-01-13 2022-09-30 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 1,238,900 102,865 9.05 165,126 -6.83 0.1237
2022-11-14 2022-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,238,900 102,865 165,126 0.1236
2022-08-15 2022-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,136,035 55,508 5.14 177,240 5.37 0.1222
2022-05-16 2022-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 1,080,527 143,140 15.27 168,211 40.85 0.0812
2022-02-14 2021-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 937,387 30,626 3.38 119,424 1.15 0.0498
2021-11-16 2021-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 906,761 76,353 9.19 118,070 -19.96 0.0516
2021-08-16 2021-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 830,408 7,007 0.85 147,514 8.99 0.0631
2021-05-17 2021-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 823,401 -48,199 -5.53 135,343 -5.92 0.0618
2021-02-16 2020-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 871,600 -61,798 -6.62 143,858 8.09 0.0668
2020-11-16 2020-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 933,398 62,594 7.19 133,096 38.52 0.0694
2020-08-14 2020-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 870,804 44,819 5.43 96,084 16.63 0.0539
2020-05-14 2020-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 825,985 142,652 20.88 82,386 -19.24 0.0567
2020-02-18 2019-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 683,333 -14,184 -2.03 102,008 14.13 0.0522
2019-11-14 2019-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 697,517 365 0.05 89,380 -10.07 0.0484
2019-07-31 2019-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 697,152 8,473 1.23 99,386 0.95 0.0541
2019-04-30 2019-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 688,679 -2,609 -0.38 98,447 14.89 0.0546
2019-02-06 2018-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 691,288 -173,595 -20.07 85,691 -41.07 0.0546
2018-11-09 2018-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 864,883 1,269 0.15 145,413 -2.28 0.0777
2018-08-10 2018-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 863,614 -64,493 -6.95 148,801 6.18 0.0848
2018-05-14 2018-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 928,107 -1,927 -0.21 140,134 11.90 0.0826
2018-03-12 2017-12-31 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 930,034 76,114 8.91 125,228 0.27 0.0771
2018-02-09 2017-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 930,034 76,114 125,228
2017-11-14 2017-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 853,920 -19,999 -2.29 124,886 -8.10 0.0800
2017-08-17 2017-06-30 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 873,919 866,691 11,990.74 135,894 12,854.62 0.0926
2017-08-14 2017-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 873,919 866,691 135,894
2017-05-03 2017-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 7,228 0 0.00 1,049 33.12 0.0074
2017-01-30 2016-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 7,228 800 12.45 788 0.90 0.0058
2016-10-24 2016-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,428 0 0.00 781 -13.99 0.0058
2016-07-29 2016-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,428 0 0.00 908 8.22 0.0076
2016-05-12 2016-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,428 6,428 0.00 839 0.0068
2015-11-16 2015-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 0 -6,428 -100.00 0 -100.00
2015-08-17 2015-06-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,428 0 0.00 1,132 1.89 0.0089
2015-06-02 2015-03-31 13F/A-1 JAZZ PHARMACEUTICALS SHS USD G50871105 6,428 -3,460 -34.99 1,111 -31.38 0.0086
2015-05-15 2015-03-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 6,428 1,111
2015-02-12 2014-12-31 13F JAZZ PHARMACEUTICALS SHS USD G50871105 9,888 7,182 265.41 1,619 272.18 0.0117
2014-11-12 2014-09-30 13F JAZZ PHARMACEUTICALS SHS USD G50871105 2,706 2,706 435 0.0041
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.