NBIX in the 13F filings

Neurocrine Biosciences Inc · CUSIP 64125C109

Sector · Pharmaceuticals and biotechnology Theme · Biological products Theme · Healthcare: biopharma and medtech· L3VLUP-defined

Quarter

Q3 2026 · early filers Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024 Q4 2023

Quarter end: 31 Mar 2026; the date the book describes
Filed: 27 Oct 2026; latest of these filings; the earliest 12 May 2026
Managers listing it: 28; at least, of 95 tracked, among listed positions
Comparable managers: 91; filed both Q4 2025 and Q1 2026; 17 listed it in both
Shares listed: 22,943,219; combined, among listed positions
Reported value: $3.0bn; combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 16 buyers (opened or added shares) and 19 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,623,055.

Managers listing NBIX in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

ActionShare of book at least

28 of 28 holders

				Action		Filing
Dodge & Cox	5,461,037	$719m	0.40%	Trimmed	-47,005	14 May 2026 (the filing on sec.gov)
AQR Capital Management LLC	4,938,967	$651m	0.30%	Added	+1,667,261	15 May 2026 (the filing on sec.gov)
Two Sigma Investments LP	3,060,570	$403m	0.33%	Added	+2,075,759	15 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC	2,418,897	$319m	0.50%	Added	+180,100	14 May 2026 (the filing on sec.gov)
Wellington Management Group LLP	1,389,539	$183m	under 0.1%	Trimmed	-355,021	15 May 2026 (the filing on sec.gov)
Millennium Management LLC	1,247,447	$164m	0.07%	Added	+804,581	15 May 2026 (the filing on sec.gov)
AllianceBernstein LP	523,533	$74m	under 0.1%	Trimmed	-31,961	15 May 2026 (the filing on sec.gov)
Marshall Wace LLP	508,977	$67m	0.07%	Added	+160,134	15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC	487,953	$64m	0.08%	Added	+278,247	15 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	466,977	$62m	under 0.1%	Added	+7,801	18 May 2026 (the filing on sec.gov)
Man Group PLC	415,909	$55m	0.10%	Added	+184,699	15 May 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP	395,850	$52m	0.18%	Added	+90,850	13 May 2026 (the filing on sec.gov)
Invesco Ltd	356,009	$47m	under 0.1%	Added	+12,588	12 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC	350,710	$46m	0.07%	Added	+101,556	13 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)	154,867	$20m	under 0.1%	Added	+84,394	15 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	151,256	$20m	under 0.1%	Trimmed	-1,720,984	15 May 2026 (the filing on sec.gov)
Bridgewater Associates LP	148,141	$20m	0.09%	Trimmed	-1,849	15 May 2026 (the filing on sec.gov)
MFS Investment Management	101,953	$13m	under 0.1%	Trimmed	-24,388	14 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.	89,184	$12m	under 0.1%	New	new	15 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP	87,727	$12m	under 0.1%	Trimmed	-9,986	15 May 2026 (the filing on sec.gov)
Citadel Advisors LLC	57,968	$7.6m	under 0.1%	Trimmed	-21,743	15 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC	56,615	$7.5m	0.05%	Trimmed	-33,357	15 May 2026 (the filing on sec.gov)
PDT Partners LLC	28,781	$3.8m	0.22%	Held	0	15 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP	11,997	$1.6m	under 0.1%	Trimmed	-128,532	15 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC	11,535	$1.5m	under 0.1%	Added	+376	27 Oct 2026 (the filing on sec.gov)

Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Two Sigma Investments LPexisting position · 3,060,570 shares now+2,075,759
AQR Capital Management LLCexisting position · 4,938,967 shares now+1,667,261
Millennium Management LLCexisting position · 1,247,447 shares now+804,581
Squarepoint Ops LLCexisting position · 487,953 shares now+278,247
Man Group PLCexisting position · 415,909 shares now+184,699

Reductions

T. Rowe Price Associates Incexisting position · 151,256 shares now-1,720,984
Wellington Management Group LLPexisting position · 1,389,539 shares now-355,021
Freestone Grove Partners LPexisting position · 11,997 shares now-128,532
Woodline Partners LPexisting position · 3,890 shares now-68,408
Dodge & Coxexisting position · 5,461,037 shares now-47,005

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (1)

D. E. Shaw & Co.$12m

Exited (8)

Arrowstreet Capital LPwas $51m
Balyasny Asset Management LLCwas $20m
Walleye Capital LLCwas $13m
ExodusPoint Capital Management LPwas $4.5m
Verition Fund Management LLCwas $4.1m
Tudor Investment Corpwas $2.8m
Element Capital Management LLCwas $995k
Quantbot Technologies LPwas $315k

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.

11 in Q3 2024 to 10 in Q2 2026

Tracked managers listing it, at least.

the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.

NBIX by quarter
Quarter	Holders	Reported value	Buyers	Sellers
Q2 2013	1	$2.7m	n.a.	n.a.
Q3 2013	1	$5.9m	n.a.	n.a.
Q4 2013	1	$4.9m	n.a.	n.a.
Q1 2014	2	$184m	n.a.	n.a.
Q2 2014	2	$19m	n.a.	n.a.
Q3 2014	2	$174m	n.a.	n.a.
Q4 2014	3	$278m	n.a.	n.a.
Q1 2015	5	$990m	n.a.	n.a.
Q2 2015	7	$1.1bn	n.a.	n.a.
Q3 2015	7	$975m	n.a.	n.a.
Q4 2015	8	$1.6bn	n.a.	n.a.
Q1 2016	6	$1.1bn	n.a.	n.a.
Q2 2016	9	$1.2bn	n.a.	n.a.
Q3 2016	11	$1.5bn	n.a.	n.a.
Q4 2016	7	$959m	n.a.	n.a.
Q1 2017	7	$960m	n.a.	n.a.
Q2 2017	11	$1.5bn	n.a.	n.a.
Q3 2017	13	$2.2bn	n.a.	n.a.
Q4 2017	17	$2.8bn	n.a.	n.a.
Q1 2018	13	$3.0bn	n.a.	n.a.
Q2 2018	15	$3.6bn	n.a.	n.a.
Q3 2018	20	$4.3bn	n.a.	n.a.
Q4 2018	16	$2.4bn	n.a.	n.a.
Q1 2019	18	$2.6bn	n.a.	n.a.
Q2 2019	12	$2.2bn	n.a.	n.a.
Q3 2019	12	$2.4bn	n.a.	n.a.
Q4 2019	19	$2.8bn	n.a.	n.a.
Q1 2020	13	$2.2bn	n.a.	n.a.
Q2 2020	12	$3.3bn	n.a.	n.a.
Q3 2020	15	$2.6bn	n.a.	n.a.
Q4 2020	12	$2.6bn	n.a.	n.a.
Q1 2021	6	$2.3bn	n.a.	n.a.
Q2 2021	9	$1.5bn	n.a.	n.a.
Q3 2021	8	$1.5bn	n.a.	n.a.
Q4 2021	14	$1.3bn	n.a.	n.a.
Q1 2022	15	$1.4bn	n.a.	n.a.
Q2 2022	11	$1.3bn	n.a.	n.a.
Q3 2022	14	$1.0bn	n.a.	n.a.
Q4 2022	15	$1.2bn	n.a.	n.a.
Q1 2023	17	$860m	n.a.	n.a.
Q2 2023	16	$1.1bn	n.a.	n.a.
Q3 2023	24	$1.4bn	n.a.	n.a.
Q4 2023	21	$1.6bn	10	12
Q1 2024	19	$1.5bn	9	11
Q2 2024	17	$1.4bn	10	9
Q3 2024	11	$1.2bn	7	5
Q4 2024	14	$2.0bn	10	4
Q1 2025	14	$1.6bn	10	4
Q2 2025	16	$2.5bn	10	7
Q3 2025	15	$2.6bn	7	8
Q4 2025	21	$2.8bn	17	21
Q1 2026	17	$2.9bn	16	19
Q2 2026	10	$2.7bn	16	16

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

NBIX and GILD →NBIX and AMGN →NBIX and ARGX →Choose a stock to compare with NBIX →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own NBIX, latest filings →Back to the 13F Explorer →

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