Neurocrine Biosciences, Inc.
MX ˙ BMV ˙ US64125C1099
SecurityMX:NBIX / Neurocrine Biosciences, Inc.
InstitutionRobeco Institutional Asset Management B.V.
Latest Disclosed Ownership88,017 shares
Latest Disclosed Value $ 11,595,360
Robeco Institutional Asset Management B.V. reports 22.29% decrease in ownership of NBIX / Neurocrine Biosciences, Inc.

On April 21, 2026 - Robeco Institutional Asset Management B.V. filed a 13F-HR form disclosing ownership of 88,017 shares of Neurocrine Biosciences, Inc. (MX:NBIX) valued at $11,595,360 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 113,261 shares of Neurocrine Biosciences, Inc.. This represents a change in shares of -22.29% 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)
2026-04-21 2026-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 88,017 -25,244 -22.29 11,595 -27.82 0.0165
2026-01-23 2025-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 113,261 85,076 301.85 16,064 306.04 0.0229
2025-10-22 2025-09-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 28,185 13,087 86.68 3,957 108.54 0.0057
2025-07-18 2025-06-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 15,098 -1,122 -6.92 1,898 5.80 0.0031
2025-04-23 2025-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 16,220 1,586 10.84 1,794 -10.22 0.0035
2025-01-23 2024-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 14,634 -372,648 -96.22 1,998 -95.52 0.0038
2024-10-29 2024-09-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 387,282 53,301 15.96 44,623 -2.95 0.0886
2024-07-23 2024-06-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 333,981 23,756 7.66 45,979 7.46 0.0989
2024-04-24 2024-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 310,225 132,526 74.58 42,786 82.74 0.0930
2024-02-14 2023-12-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 177,699 23,632 15.34 23,414 35.09 0.0568
2024-02-08 2023-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 109,321 -44,746 178 0.0333
2023-10-24 2023-09-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 154,067 -1,096 -0.71 17,333 18.46 0.0463
2023-07-24 2023-06-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 155,163 -7,276 -4.48 14,632 -11.01 0.0384
2023-05-04 2023-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 162,439 -25,765 -13.69 16,442 -26.86 0.0448
2023-02-07 2022-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 188,204 123,826 192.34 22,479 228.74 0.0648
2022-12-01 2022-09-30 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 64,378 55,548 629.08 6,838 694.19 0.0221
2022-10-27 2022-09-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 64,378 55,548 6,838 0.0218
2022-12-01 2022-06-30 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 8,830 8,220 1,347.54 861 1,410.53 0.0027
2022-07-27 2022-06-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 8,830 8,220 861 0.0026
2022-12-01 2022-03-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 610 -2,838 -82.31 57 -80.61 0.0001
2022-04-26 2022-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 610 -2,838 57 0.0001
2022-12-01 2021-12-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 3,448 66 1.95 294 -9.26 0.0006
2022-01-31 2021-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 3,448 66 294 0.0006
2022-12-01 2021-09-30 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 3,382 0 0.00 324 -1.52 0.0007
2021-10-20 2021-09-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 3,382 0 324 0.0007
2022-12-01 2021-06-30 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 3,382 0 0.00 329 0.00 0.0007
2021-07-28 2021-06-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 3,382 0 329 0.0007
2022-12-01 2021-03-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 3,382 -709 -17.33 329 -16.07 0.0008
2021-04-23 2021-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 3,382 -709 329 0.0008
2022-12-01 2020-12-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 4,091 0 0.00 392 -0.25 0.0010
2021-01-28 2020-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 4,091 0 392 0.0010
2021-01-19 2020-09-30 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 4,091 3,964 3,121.26 393 2,520.00 0.0012
2020-10-29 2020-09-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 4,091 3,964 393 1,213.7119
2021-01-19 2020-06-30 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 127 -3,229 -96.22 15 -94.83 0.0001
2020-07-20 2020-06-30 13F NEUROCRINE BIOSCIENCES COM 64125C109 127 -3,229 15 50.8977
2021-01-19 2020-03-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 3,356 2,871 591.96 290 457.69 0.0012
2020-04-30 2020-03-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 3,356 2,871 290 1,162.3854
2021-01-19 2019-12-31 13F/A-1 NEUROCRINE BIOSCIENCES COM 64125C109 485 485 52 0.0002
2020-02-06 2019-12-31 13F NEUROCRINE BIOSCIENCES COM 64125C109 485 52
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.