XOOMAR

NEUROCRINE BIOSCIENCES INC (NBIX)

Every FINRA and SEC series the site collects for NEUROCRINE BIOSCIENCES INC: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq, classified by the SEC as biological products, (no diagnostic substances).

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4.6M

Short interest

settlement 2026-08-14

3.4

Days to cover

+3.7% vs prior

74.7%

Short share of volume

2026-09-11

20

Fails to deliver

settlement 2026-08-12

-$4.0M

Insider flow, 90 days

0 buys, 6 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 14 August 2026, short interest in NBIX is 4,551,075 shares, down 783,613 shares over the last month. Over the last 48 readings it ranged from 2,135,372 shares (30 August 2024) to 5,992,527 shares (30 April 2026). At the reported average volume of 1.3M shares a day that is 3.4 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-144,551,075+3.7%1,329,5973.42
2026-07-314,390,083-17.7%1,456,2783.01
2026-07-155,334,688-3.5%1,086,8104.91
2026-06-305,530,854-2.8%1,315,4074.20
2026-06-155,690,488+2.9%1,128,1015.04
2026-05-295,529,509+7.2%1,114,7634.96
2026-05-155,160,707-13.9%1,400,1923.69
2026-04-305,992,527+6.2%1,163,6045.15
2026-04-155,644,452+23.9%1,160,8694.86
2026-03-314,557,132+18.1%982,2314.64
2026-03-133,858,266+14.1%980,9353.93
2026-02-273,382,324+7.1%1,025,5083.30
2026-02-133,158,474-5.4%1,499,2852.11
2026-01-303,340,144-4.6%925,0583.61
2026-01-153,501,097-13.9%1,280,2532.73
2025-12-314,067,222+3.3%997,9964.08
2025-12-153,939,195-1.2%884,4784.45
2025-11-283,987,908+18.8%991,0304.02
2025-11-143,355,702-18.4%1,173,7162.86
2025-10-314,114,577-5.8%1,026,7174.01
2025-10-154,366,857+2.5%811,7465.38
2025-09-304,262,521+3.5%904,1944.71
2025-09-154,119,845-0.3%830,4874.96
2025-08-294,130,984+3.7%615,8246.71

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of NBIX volume is 74.7%, up 25.0 points over the last five sessions. Over the last 52 readings it ranged from 42.2% (14 August 2026) to 83.7% (31 July 2026). The latest reading is 15.7 points above the 30-session average of 59.0%, on 349K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-11261K349K74.7%94
2026-09-10177K391K45.4%1,405
2026-09-09250K433K57.8%1
2026-09-08172K280K61.4%10
2026-09-04229K350K65.4%701
2026-09-03129K260K49.7%1,515
2026-09-02283K450K63.0%6,666
2026-09-01195K353K55.2%100
2026-08-31250K442K56.6%192
2026-08-28237K330K72.0%18
2026-08-27220K323K68.0%676
2026-08-26271K519K52.2%0
2026-08-25242K433K55.9%259
2026-08-24259K577K44.9%483
2026-08-21233K511K45.6%674
2026-08-20164K288K56.9%1,739
2026-08-19275K419K65.6%669
2026-08-18270K388K69.6%257
2026-08-17268K457K58.7%143
2026-08-14233K552K42.2%13,085
2026-08-13571K1.0M56.0%4,161
2026-08-12407K817K49.8%323
2026-08-11185K308K60.0%735
2026-08-10252K449K56.2%3,019
2026-08-07278K425K65.5%0
2026-08-06436K661K66.0%41
2026-08-05310K580K53.4%152
2026-08-04251K439K57.1%3,195
2026-08-03280K447K62.8%6,116
2026-07-311.8M2.1M83.7%15,876

Fails to deliver

SEC, by settlement date. JSON

As of 12 August 2026, the fails-to-deliver balance in NBIX is 20 shares, up 19 shares over the last settlement date. Over the last 26 readings it ranged from 1 share (7 August 2026) to 201,605 shares (25 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-1220$161.94$3K
2026-08-071$159.82$160
2026-08-035,960$166.80$994K
2026-07-2933$182.83$6K
2026-07-2036$170.88$6K
2026-07-09382$178.24$68K
2026-07-02360$167.77$60K
2026-06-25201,605$166.06$33.5M
2026-06-15299$159.76$48K
2026-06-08246$163.88$40K
2026-06-044,834$165.11$798K
2026-06-0228,872$161.00$4.6M
2026-03-311,796$128.72$231K
2026-03-232$127.68$255
2026-02-2319,850$128.63$2.6M
2026-02-04696$138.98$97K
2026-01-086,244$140.62$878K
2025-12-224,323$145.00$627K
2025-12-125,376$154.75$832K
2025-11-26780$143.53$112K
2025-11-1417,848$144.17$2.6M
2025-10-296$147.38$884
2025-10-2420$143.67$3K
2025-09-175$140.90$705
2025-09-16648$140.44$91K
2025-09-1013$144.17$2K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at NBIX reported 6 open-market sells worth $4.0M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: BENEVICH ERIC (Chief Commercial Officer) on 2026-09-09.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-09BENEVICH ERICChief Commercial OfficerSell2K$154.61$333K64K
2026-09-09BENEVICH ERICChief Commercial OfficerOption exercise3K$43.24$138K67K
2026-09-02SHERWIN STEPHEN An/aGift1K$0.00$015K
2026-08-04Onyia JudeChief Scientific OfficerGift2K$0.00$021K
2026-07-29Norwalk Leslie Vn/aOption exercise842$139.43$117K2K
2026-07-28Norwalk Leslie Vn/aSell1K$182.01$228K2K
2026-07-10Delaet IngridChief Regulatory OfficerSell4K$181.02$791K16K
2026-07-10Delaet IngridChief Regulatory OfficerOption exercise4K$106.02$463K21K
2026-07-09Delaet IngridChief Regulatory OfficerSell8K$178.72$1.5M16K
2026-07-09Delaet IngridChief Regulatory OfficerOption exercise8K$103.52$873K25K
2026-07-08Delaet IngridChief Regulatory OfficerSell3K$178.54$489K16K
2026-07-08Delaet IngridChief Regulatory OfficerOption exercise3K$103.52$283K19K
2026-07-07Delaet IngridChief Regulatory OfficerSell3K$178.57$607K16K
2026-07-07Delaet IngridChief Regulatory OfficerOption exercise3K$103.52$352K20K
2026-06-05Onyia JudeChief Scientific OfficerGift2K$0.00$023K
2026-06-05SHERWIN STEPHEN An/aSell2K$167.31$308K16K
2026-06-05SHERWIN STEPHEN An/aSell6K$166.56$971K18K
2026-06-05SHERWIN STEPHEN An/aSell7K$165.79$1.1M24K
2026-06-05SHERWIN STEPHEN An/aSell3K$164.44$419K30K
2026-06-05SHERWIN STEPHEN An/aSell8K$163.81$1.3M33K
2026-06-05SHERWIN STEPHEN An/aOption exercise10K$79.79$798K41K
2026-06-05SHERWIN STEPHEN An/aOption exercise15K$53.64$805K31K
2026-06-04Norwalk Leslie Vn/aSell1K$168.06$210K3K
2026-06-02Keswani Sanjay ChandruChief Medical OfficerTax withholding2K$154.84$268K1K
2026-06-02Keswani Sanjay ChandruChief Medical OfficerOption exercise3K$0.00$03K
2026-06-02Cooke JulieChief Human Resources OfficerSell4K$158.59$558K22K
2026-06-02Cooke JulieChief Human Resources OfficerSell10K$157.62$1.5M26K
2026-06-02Cooke JulieChief Human Resources OfficerSell4K$156.77$661K35K
2026-06-02Cooke JulieChief Human Resources OfficerSell5K$155.46$850K40K
2026-06-02Cooke JulieChief Human Resources OfficerSell14K$154.83$2.2M45K
2026-06-02Cooke JulieChief Human Resources OfficerOption exercise25K$81.49$2.0M59K
2026-06-01Onyia JudeChief Scientific OfficerSell11K$160.25$1.8M26K
2026-06-01Onyia JudeChief Scientific OfficerOption exercise11K$84.74$932K37K
2026-05-29Delaet IngridChief Regulatory OfficerSell2K$156.71$354K16K
2026-05-29Delaet IngridChief Regulatory OfficerOption exercise2K$79.02$179K18K
2026-05-27Onyia JudeChief Scientific OfficerSell11K$155.53$1.7M26K
2026-05-27Onyia JudeChief Scientific OfficerOption exercise11K$84.74$932K37K
2026-05-26Boyer David W.Chief Corp. Affairs OfficerSell4K$156.64$609K8K
2026-05-21Norwalk Leslie Vn/aOption exercise2K$0.00$04K
2026-05-21Sharp Shalinin/aOption exercise2K$0.00$04K
2026-05-21RASTETTER WILLIAM Hn/aOption exercise3K$0.00$044K
2026-05-21POON CHRISTINE An/aOption exercise3K$0.00$05K
2026-05-21POPS RICHARD Fn/aOption exercise3K$0.00$038K
2026-05-21SHERWIN STEPHEN An/aOption exercise3K$0.00$016K
2026-05-21Mercier Johannan/aOption exercise3K$0.00$07K
2026-05-21MORROW GEORGE Jn/aOption exercise3K$0.00$010K
2026-05-21LYONS GARY An/aOption exercise2K$0.00$0122K
2026-05-19GORMAN KEVIN CHARLESn/aSell245K$154.33$37.8M511K
2026-05-19GORMAN KEVIN CHARLESn/aOption exercise205K$43.24$8.9M756K
2026-05-15POPS RICHARD Fn/aSell15K$157.65$2.4M34K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

Planned sales (Form 144)

Newest first. JSON

1 Form 144 notice on file for NBIX worth $334K at the prices reported; 1 in the last 90 days worth $334K. Latest: ERIC BENEVICH filed on 2026-09-09 to sell 2,154 shares ($334K) from 2026-09-09.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-09ERIC BENEVICHOfficer2K$334K0.002%2026-09-09Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

1 holder above 5% has filed on NBIX, all on Schedule 13G (passive). The largest reported stake is JPMORGAN CHASE & CO. at 6.3% of the class (6,338,240 shares), filed 2026-07-27 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-07-2713G/Ano. 1JPMORGAN CHASE & CO.parent holding company6.3M6.3%2026-06-30

13F holders

Tracked managers holding NBIX at their latest 13F. JSON

8 of the 30 tracked managers held NBIX at their latest 13F, $1.46B in total at quarter-end prices. AQR Capital Management is the largest at $643.5M (0.2% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 6 cut.

FundQuarterSharesValueOf portfolioChange in shares
AQR Capital Management2026-06-303.8M$643.5M0.22%-1.1M
Renaissance Technologies2026-06-302.3M$393.7M0.54%-83K
Two Sigma Investments2026-06-302.1M$349.9M0.25%-984K
Bridgewater Associates2026-06-30206K$34.7M0.14%+58K
Fisher Asset Management2026-06-30135K$22.8M0.01%+13K
Citadel Advisors2026-06-3073K$12.2M0.00%-16K
Millennium Management2026-06-3012K$2.0M0.00%-431K
D. E. Shaw & Co.2026-06-306K$944K0.00%-84K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 2026 (quarter ended 2026-06-30) NEUROCRINE BIOSCIENCES INC reported revenue of $959.0M, up 39.5% from the same quarter a year earlier, and net income of $144.4M (1.39 diluted EPS). In FY 2025 it generated $782.7M of operating cash flow and spent $167.7M on buybacks.

Cash
$332.4M
Equity
$3.69B
Total assets
$5.36B
Shares outstanding
101,649,181

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$959.0M$144.4M15.1%1.39
Q1 20262026-03-31$814.5M$197.9M24.3%1.91
Q4 2025derived2025-12-31$805.5Mn/an/an/a
Q3 20252025-09-30$794.9M$209.5M26.4%2.04
Q2 20252025-06-30$687.5M$107.5M15.6%1.06
Q1 20252025-03-31$572.6M$7.9M1.4%0.08
Q4 2024derived2024-12-31$627.7Mn/an/an/a
Q3 20242024-09-30$622.1M$129.8M20.9%1.24

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$2.86Bn/a$782.7M$34.0M$167.7Mn/a
FY 20242024-12-31$2.36Bn/a$595.4M$38.2M$300.0Mn/a
FY 20232023-12-31$1.89Bn/a$389.9M$28.3M$0n/a
FY 20222022-12-31$1.49Bn/a$339.4M$16.5M$0n/a
FY 20212021-12-31$1.13Bn/a$256.5M$23.4Mn/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-22 from the cover page.

What this page is

NEUROCRINE BIOSCIENCES INC in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows NEUROCRINE BIOSCIENCES INC (NBIX), SEC CIK 914475, listed on Nasdaq, classified by the SEC as biological products, (no diagnostic substances). The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-14.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-12.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-09.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-07-27.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-09.JSON and CSV
Company record
EDGAR filing index for CIK 914475Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 13 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of NBIX is sold short?
4,551,075 shares were held short at the 2026-08-14 settlement, 3.4 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is NBIX's daily short volume?
On 2026-09-11, 260,735 of the 348,940 NBIX shares reported to FINRA were sold short, 74.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NBIX have fails to deliver?
The SEC's latest file shows 20 NBIX shares failed to deliver at settlement 2026-08-12. Fails are reported per settlement date and published twice a month with a lag.
Are NBIX insiders buying or selling?
Insiders at NBIX reported 6 open-market sells worth $4.0M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: BENEVICH ERIC (Chief Commercial Officer) on 2026-09-09.
Have NBIX insiders filed to sell?
1 Form 144 notice on file for NBIX worth $334K at the prices reported; 1 in the last 90 days worth $334K. Latest: ERIC BENEVICH filed on 2026-09-09 to sell 2,154 shares ($334K) from 2026-09-09.
Who owns more than 5% of NBIX?
1 holder above 5% has filed on NBIX, all on Schedule 13G (passive). The largest reported stake is JPMORGAN CHASE & CO. at 6.3% of the class (6,338,240 shares), filed 2026-07-27 for an event on 2026-06-30.
What did NBIX report last quarter?
In Q2 2026 (quarter ended 2026-06-30) NEUROCRINE BIOSCIENCES INC reported revenue of $959.0M, up 39.5% from the same quarter a year earlier, and net income of $144.4M (1.39 diluted EPS). In FY 2025 it generated $782.7M of operating cash flow and spent $167.7M on buybacks.
Which funds hold NBIX?
8 of the 30 tracked managers held NBIX at their latest 13F, $1.46B in total at quarter-end prices. AQR Capital Management is the largest at $643.5M (0.2% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 6 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.