Jazz Pharmaceuticals plc
US ˙ NasdaqGS ˙ IE00B4Q5ZN47

SecurityJAZZ / Jazz Pharmaceuticals plc
InstitutionAmalgamated Bank
Latest Disclosed Ownership29,611 shares
Latest Disclosed Value $ 5,598
Amalgamated Bank reports 7.62% increase in ownership of JAZZ / Jazz Pharmaceuticals plc

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 29,611 shares of Jazz Pharmaceuticals plc (US:JAZZ) valued at $5,597,960 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 27,514 shares of Jazz Pharmaceuticals plc. This represents a change in shares of 7.62% during the quarter. The current value of the position is $7,064,296 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)
2026-05-08 2026-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 29,611 2,097 7.62 6 25.00 0.0428
2026-02-05 2025-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 27,514 -58 -0.21 5 33.33 0.0338
2025-10-29 2025-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 27,572 -441 -1.57 4 50.00 0.0260
2025-08-04 2025-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 28,013 427 1.55 3 -33.33 0.0230
2025-04-25 2025-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 27,586 -1,217 -4.23 3 0.00 0.0293
2025-02-04 2024-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 28,803 -641 -2.18 4 0.00 0.0291
2024-10-30 2024-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 29,444 -9,681 -24.74 3 -25.00 0.0270
2024-08-12 2024-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 39,125 1,745 4.67 4 0.00 0.0356
2024-04-23 2024-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 37,380 -3,549 -8.67 5 -20.00 0.0385
2024-02-06 2023-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 40,929 -877 -2.10 5 0.00 0.0402
2023-11-08 2023-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 41,806 -1,648 -3.79 5 0.00 0.0461
2023-08-11 2023-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 43,454 432 1.00 5 -16.67 0.0436
2023-05-02 2023-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 43,022 -2,640 -5.78 6 -14.29 0.0537
2023-02-10 2022-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 45,662 495 1.10 7 -99.88 0.0649
2022-11-09 2022-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 45,167 1,408 3.22 6,020 -11.82 0.0581
2022-08-15 2022-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 43,759 1,469 3.47 6,827 3.71 0.0636
2022-08-25 2022-03-31 13F/A-1 JAZZ PHARMACEUTICALS COM G50871105 42,290 -1,485 -3.39 6,583 18.04 0.0511
2022-06-30 2022-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 42,290 -1,485 6,583 0.0523
2022-02-15 2021-12-31 13F/A-1 JAZZ PHARMACEUTICALS COM G50871105 43,775 -1,530 -3.38 5,577 -5.46 0.0412
2022-02-15 2021-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 43,775 -1,530 5,577 0.0412
2021-10-29 2021-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 45,305 -3,842 -7.82 5,899 -32.43 0.0498
2021-08-16 2021-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 49,147 42,276 615.28 8,730 673.25 0.0700
2021-05-13 2021-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 6,871 -337 -4.68 1,129 -5.13 0.0423
2021-02-12 2020-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 7,208 21 0.29 1,190 16.10 0.0451
2020-10-30 2020-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 7,187 450 6.68 1,025 37.95 0.0446
2020-08-10 2020-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 6,737 -7,423 -52.42 743 -47.38 0.0344
2020-05-13 2020-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 14,160 -321 -2.22 1,412 -34.69 0.0345
2020-02-13 2019-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 14,481 749 5.45 2,162 22.84 0.0398
2019-11-13 2019-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 13,732 1,613 13.31 1,760 1.85 0.0370
2019-08-14 2019-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 12,119 -1,122 -8.47 1,728 -8.72 0.0403
2019-05-15 2019-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 13,241 253 1.95 1,893 17.58 0.0459
2019-02-15 2018-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 12,988 4,680 56.33 1,610 15.25 0.0456
2018-11-14 2018-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 8,308 -5,215 -38.56 1,397 -40.04 0.0345
2018-07-18 2018-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 13,523 13,523 2,330 0.0569
2016-08-16 2016-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 0 -2,020 -100.00 0 -100.00
2016-05-11 2016-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 2,020 578 40.08 264 30.05 0.0257
2016-02-10 2015-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 1,442 -466 -24.42 203 -19.76 0.0250
2015-11-04 2015-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 1,908 47 2.53 253 -22.87 0.0265
2015-07-10 2015-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 1,861 -4,858 -72.30 328 -71.75 0.0322
2015-04-22 2015-03-31 13F JAZZ PHARMACEUTICALS COM G50871105 6,719 6,719 0.00 1,161 0.1417
2015-01-29 2014-12-31 13F JAZZ PHARMACEUTICALS COM G50871105 0 -6,455 -100.00 0 -100.00
2014-11-14 2014-09-30 13F JAZZ PHARMACEUTICALS COM G50871105 6,455 57 0.89 1,036 10.10 0.1542
2014-08-11 2014-06-30 13F JAZZ PHARMACEUTICALS COM G50871105 6,398 548 9.37 941 16.03 0.1420
2014-05-12 2014-03-31 13F JAZZ PHARMACEUTICALS PLC COM COM G50871105 5,850 -44 -0.75 811 8.71 0.1397
2014-02-13 2013-12-31 13F JAZZ PHARMACEUTICALS PLC COM COM G50871105 5,894 5,894 746 0.1268
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.