Neurocrine Biosciences, Inc.
MX ˙ BMV ˙ US64125C1099
SecurityMX:NBIX / Neurocrine Biosciences, Inc.
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership1,671 shares
Latest Disclosed Value $ 220,138
Fred Alger Management, Llc reports 15.82% decrease in ownership of NBIX / Neurocrine Biosciences, Inc.

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 1,671 shares of Neurocrine Biosciences, Inc. (MX:NBIX) valued at $220,138 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,985 shares of Neurocrine Biosciences, Inc.. This represents a change in shares of -15.82% during the quarter.

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)
2026-05-15 2026-03-31 13F Neurocrine Biosciences Equity 64125C109 1,671 -314 -15.82 220 -21.71 0.0006
2026-02-17 2025-12-31 13F Neurocrine Biosciences Equity 64125C109 1,985 -137 -6.46 282 -5.39 0.0011
2025-11-14 2025-09-30 13F Neurocrine Biosciences Equity 64125C109 2,122 113 5.62 298 17.86 0.0012
2025-08-14 2025-06-30 13F Neurocrine Biosciences Equity 64125C109 2,009 -265 -11.65 253 0.40 0.0011
2025-05-16 2025-03-31 13F Neurocrine Biosciences Equity 64125C109 2,274 2,274 252 0.0014
2024-05-15 2024-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 0 -7,339 -100.00 0 -100.00
2024-02-14 2023-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 7,339 -82,599 -91.84 967 -90.45 0.0052
2023-11-14 2023-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 89,938 89,938 10,118 0.0536
2023-11-14 2023-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 89,938 89,938 10,118 0.0536
2023-08-14 2023-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 0 -176 -100.00 0 -100.00
2023-05-16 2023-03-31 13F/A-1 NEUROCRINE BIOSCIENCES Common 64125C109 176 -206,521 -99.91 18 -99.93 0.0001
2023-05-15 2023-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 176 -206,521 18 0.0001
2023-02-14 2022-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 206,697 206,473 92,175.45 24,688 102,762.50 0.1338
2022-11-15 2022-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 224 0 0.00 24 9.09 0.0001
2022-08-15 2022-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 224 -7,551 -97.12 22 -96.73 0.0001
2020-05-19 2020-03-31 13F/A-1 NEUROCRINE BIOSCIENCES Common 64125C109 7,775 -30,550 -79.71 673 -83.67 0.0030
2020-05-15 2020-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 7,775 -30,550 673 2,961.0353
2020-02-14 2019-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 38,325 10,023 35.41 4,120 61.57 0.0152
2019-11-14 2019-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 28,302 4,208 17.46 2,550 25.37 0.0100
2019-08-14 2019-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 24,094 -17,421 -41.96 2,034 -44.38 0.0078
2019-05-14 2019-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 41,515 -4,323 -9.43 3,657 11.73 0.0146
2019-02-14 2018-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 45,838 -14,446 -23.96 3,273 -55.84 0.0151
2018-11-14 2018-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 60,284 -1,253 -2.04 7,412 22.61 0.0278
2018-07-19 2018-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 61,537 15,315 33.13 6,045 57.71 0.0254
2018-05-10 2018-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 46,222 8,492 22.51 3,833 30.95 0.0178
2018-02-14 2017-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 37,730 31,905 547.73 2,927 719.89 0.0132
2017-11-14 2017-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 5,825 5,431 1,378.43 357 1,883.33 0.0017
2017-08-14 2017-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 394 -17,000 -97.73 18 -97.61 0.0001
2017-05-15 2017-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 17,394 -32,489 -65.13 753 -60.98 0.0037
2017-02-14 2016-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 49,883 5,749 13.03 1,930 -13.65 0.0105
2016-11-14 2016-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 44,134 6,014 15.78 2,235 28.97 0.0115
2016-08-15 2016-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 38,120 -51,598 -57.51 1,733 -51.16 0.0092
2016-05-16 2016-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 89,718 -71,698 -44.42 3,548 -61.14 0.0180
2016-02-16 2015-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 161,416 -14,352 -8.17 9,131 30.55 0.0444
2015-11-16 2015-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 175,768 -110,541 -38.61 6,994 -48.85 0.0382
2015-08-14 2015-06-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 286,309 -103,461 -26.54 13,674 -11.66 0.0615
2015-05-15 2015-03-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 389,770 -236,041 -37.72 15,478 10.71 0.0697
2015-02-17 2014-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 625,811 29,981 5.03 13,981 49.74 0.0673
2014-11-14 2014-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 595,830 595,830 39,073.57 9,337 54,823.53 0.0454
2014-02-14 2013-12-31 13F NEUROCRINE BIOSCIENCES Common 64125C109 0 -1,521 -100.00 0 -100.00
2013-11-14 2013-09-30 13F NEUROCRINE BIOSCIENCES Common 64125C109 1,521 1,521 17 0.0001
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.