XOOMAR

Biomarin Pharmaceutical (BMRN)

Biomarin Pharmaceutical on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as pharmaceutical preparations.

Download CSV

12.1M

Short interest

settlement 2026-10-15

4.9

Days to cover

-0.6 days vs prior

58.4%

Short share of volume

2026-10-28

260

Fails to deliver

settlement 2026-09-30

Mon 22 Feb

Next earnings

estimated date

-$1.2M

Insider flow, 90 days

0 buys, 1 sells

As of 2026-10-28.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in BMRN is 12,050,657 shares, up 1,975,002 shares over the last month. Over the last 48 readings it ranged from 4,152,237 shares (30 May 2025) to 14,315,984 shares (15 July 2026). At the reported average volume of 2.5M shares a day that is 4.9 days to cover.

Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/bmrn" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
PreviewDark previewAdd ?theme=dark to the src for a dark chart.
SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-1512,050,657+4.6%2,458,9664.90
2026-09-3011,522,835+14.4%2,090,6425.51
2026-09-1510,075,655+2.0%1,822,7505.53
2026-08-319,877,553-3.2%1,713,7085.76
2026-08-1410,202,950-18.4%2,767,4113.69
2026-07-3112,504,131-12.7%1,684,2637.42
2026-07-1514,315,984+2.9%1,409,30410.16
2026-06-3013,908,847+11.1%2,301,8486.04
2026-06-1512,516,448+7.8%2,066,6016.06
2026-05-2911,605,279+2.2%2,921,3953.97
2026-05-1511,359,229+5.3%2,096,0875.42
2026-04-3010,792,859+6.3%1,482,6767.28
2026-04-1510,151,216+14.9%1,581,4156.42
2026-03-318,832,493+3.9%2,100,9264.20
2026-03-138,501,110+2.9%1,866,1014.56
2026-02-278,260,270-4.1%2,342,3353.53
2026-02-138,616,736+8.9%2,203,2783.91
2026-01-307,910,060+7.0%2,017,0723.92
2026-01-157,393,619-8.2%2,116,5373.49
2025-12-318,052,911-0.6%3,630,8372.22
2025-12-158,099,003-1.6%2,147,1513.77
2025-11-288,230,587-8.0%3,980,9172.07
2025-11-148,949,150-9.3%2,324,6083.85
2025-10-319,861,372+15.8%3,085,7933.20
2025-10-158,513,411+19.0%2,260,0143.77
2025-09-307,155,141-2.1%2,244,2283.19
2025-09-157,307,716+22.7%1,816,4594.02
2025-08-295,956,363+20.2%1,591,8173.74
2025-08-154,956,158-3.9%3,210,4821.54
2025-07-315,154,684-15.6%1,611,5363.20
2025-07-156,109,799-6.3%2,053,5222.98
2025-06-306,519,681+47.6%2,266,5192.88
2025-06-134,417,385+6.4%2,079,3082.12
2025-05-304,152,237-6.7%2,653,7701.56
2025-05-154,449,835-1.2%1,697,8632.62
2025-04-304,504,825-11.3%1,599,8532.82
2025-04-155,078,137+8.4%2,358,6732.15
2025-03-314,685,506-1.8%1,527,5413.07
2025-03-144,769,733+12.5%1,370,0463.48
2025-02-284,238,607-5.1%1,879,8702.25
2025-02-144,468,117-0.8%1,064,6534.20
2025-01-314,504,362+2.7%1,950,7442.31
2025-01-154,384,062-3.5%1,411,1813.11
2024-12-314,542,138-12.8%1,360,4103.34
2024-12-135,206,764-9.5%1,584,9653.29
2024-11-295,754,877+12.5%1,394,9644.13
2024-11-155,116,587-4.9%1,463,9143.50
2024-10-315,378,964-3.8%1,508,7243.57

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 28 October 2026, the short share of BMRN volume is 58.4%, down 8.6 points over the last five sessions. Over the last 30 readings it ranged from 29.4% (25 September 2026) to 74.2% (23 October 2026). The latest reading is 3.9 points above the 30-session average of 54.5%, on 771K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-28450K771K58.4%0
2026-10-27358K700K51.2%268
2026-10-26632K1.0M60.5%6
2026-10-23458K617K74.2%179
2026-10-22493K839K58.7%70
2026-10-21620K925K67.0%17
2026-10-20725K1.2M59.1%128
2026-10-19720K1.2M60.7%2,165
2026-10-16649K1.0M62.0%62
2026-10-15685K995K68.8%4
2026-10-14245K608K40.4%0
2026-10-13429K948K45.3%287
2026-10-12440K1.0M43.6%110
2026-10-09447K683K65.5%0
2026-10-08464K681K68.0%0
2026-10-07469K830K56.5%0
2026-10-06502K1.2M40.5%1,748
2026-10-05496K805K61.6%3
2026-10-02339K596K56.9%18
2026-10-01389K773K50.4%400
2026-09-30333K549K60.6%31
2026-09-29389K691K56.2%75
2026-09-28420K908K46.2%0
2026-09-25165K560K29.4%111
2026-09-24210K480K43.7%500
2026-09-23432K935K46.2%100
2026-09-22385K935K41.2%7
2026-09-21239K654K36.5%513
2026-09-18313K541K57.8%7,985
2026-09-17334K482K69.4%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 30 September 2026, the fails-to-deliver balance in BMRN is 260 shares, down 563 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (22 April 2026) to 65,600 shares (31 March 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-30260$59.87$16K
2026-09-21823$63.94$53K
2026-09-1823,037$65.08$1.5M
2026-09-17861$64.73$56K
2026-09-0247,834$64.84$3.1M
2026-08-24260$66.70$17K
2026-08-115,650$68.88$389K
2026-08-0729,279$61.46$1.8M
2026-08-0497$60.00$6K
2026-07-3074$61.37$5K
2026-07-293,200$62.07$199K
2026-07-27236$59.33$14K
2026-07-24236$58.87$14K
2026-07-234$58.40$234
2026-07-10114$59.97$7K
2026-07-0983$59.75$5K
2026-07-0115$57.22$858
2026-06-3023$57.67$1K
2026-06-291,700$59.00$100K
2026-06-15689$55.95$39K
2026-06-12114$55.54$6K
2026-06-10122$57.91$7K
2026-06-051,565$56.47$88K
2026-06-012,853$57.29$163K
2026-05-261,367$54.09$74K
2026-05-2212,281$54.10$664K
2026-04-28753$53.81$41K
2026-04-2730$53.18$2K
2026-04-221$54.62$55
2026-03-3165,600$54.79$3.6M

Insider trades

SEC Form 4, newest first. JSON

Insiders at BMRN reported 1 open-market sell worth $1.2M in the last 90 days and no open-market buys. Latest filing: Friberg Gregory R (EVP, Chief R&D Officer) on 2026-09-30.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-30Friberg Gregory REVP, Chief R&D OfficerTax withholding4K$60.00$245K48K
2026-09-10Plenge Robert MDirectorGrant6K$0.00$06K
2026-09-02Davis George EricEVP, Chief Legal OfficerSell18K$66.28$1.2M61K
2026-06-02Countouriotis AthenaDirectorGrant7K$0.00$021K
2026-06-02Walbert Timothy PDirectorGrant7K$0.00$017K
2026-06-02Ho MaykinDirectorGrant7K$0.00$036K
2026-06-02HOMBACH ROBERT J.DirectorGrant7K$0.00$049K
2026-06-02Enyedy Mark JDirectorGrant7K$0.00$021K
2026-06-02Dere Willard HDirectorGrant7K$0.00$046K
2026-06-02CLARK IAN TDirectorGrant7K$0.00$014K
2026-06-02Bodem Barbara W.DirectorGrant7K$0.00$021K
2026-06-02ANDERSON ELIZABETH MDirectorGrant7K$0.00$042K
2026-05-20Hubbard CristinEVP, Chief Commercial OfficerTax withholding2K$50.20$116K42K
2026-05-07Friberg Gregory REVP, Chief R&D OfficerSell3K$53.85$177K52K
2026-03-18Davis George EricEVP, Chief Legal OfficerTax withholding1K$56.05$71K79K
2026-03-17Hubbard CristinEVP, Chief Commercial OfficerTax withholding1K$56.05$70K45K
2026-03-17Friberg Gregory REVP, Chief R&D OfficerTax withholding2K$56.05$91K55K
2026-03-17Guyer Charles GregEVP, Chief Technical OfficerTax withholding2K$56.05$95K84K
2026-03-17Mueller BrianEVP, Chief Financial OfficerTax withholding2K$56.05$119K123K
2026-03-17Hardy AlexanderChief Executive OfficerTax withholding4K$56.05$238K215K
2026-03-16Guyer Charles GregEVP, Chief Technical OfficerGrant15K$0.00$086K
2026-03-16Davis George EricEVP, Chief Legal OfficerGrant15K$0.00$080K
2026-03-16Davis George EricEVP, Chief Legal OfficerTax withholding7K$58.51$420K65K
2026-03-16Mueller BrianEVP, Chief Financial OfficerGrant19K$0.00$0125K
2026-03-16Hardy AlexanderChief Executive OfficerGrant62K$0.00$0219K
2026-03-16Hubbard CristinEVP, Chief Commercial OfficerGrant15K$0.00$046K
2026-03-16Friberg Gregory REVP, Chief R&D OfficerGrant19K$0.00$057K
2026-03-13Guyer Charles GregEVP, Chief Technical OfficerTax withholding9K$58.51$533K71K
2026-03-13Mueller BrianEVP, Chief Financial OfficerTax withholding10K$58.51$582K107K
2026-03-13Hardy AlexanderChief Executive OfficerTax withholding3K$58.51$172K156K
2026-03-11Guyer Charles GregEVP, Chief Technical OfficerSell16K$60.46$997K80K
2026-02-26Friberg Gregory REVP, Chief R&D OfficerSell6K$60.38$382K38K
2026-02-26Davis George EricEVP, Chief Legal OfficerSell26K$61.36$1.6M72K
2026-02-25Guyer Charles GregEVP, Chief Technical OfficerGrant2K$0.00$096K
2026-02-25Guyer Charles GregEVP, Chief Technical OfficerGrant7K$0.00$094K
2026-02-25Guyer Charles GregEVP, Chief Technical OfficerGrant6K$0.00$087K
2026-02-25Davis George EricEVP, Chief Legal OfficerGrant2K$0.00$099K
2026-02-25Davis George EricEVP, Chief Legal OfficerGrant7K$0.00$096K
2026-02-25Davis George EricEVP, Chief Legal OfficerGrant6K$0.00$089K
2026-02-25Mueller BrianEVP, Chief Financial OfficerGrant3K$0.00$0117K
2026-02-25Mueller BrianEVP, Chief Financial OfficerGrant7K$0.00$0114K
2026-02-25Mueller BrianEVP, Chief Financial OfficerGrant7K$0.00$0107K
2026-01-20Ramchandani Rashmi VirendraVP, Chief Accounting OfficerGrant7K$0.00$026K
2026-01-20Ramchandani Rashmi VirendraVP, Chief Accounting OfficerGrant19K$0.00$019K
2025-12-01Hardy AlexanderChief Executive OfficerTax withholding17K$55.03$912K159K
2025-09-30Friberg Gregory REVP, Chief R&D OfficerTax withholding3K$54.16$179K44K
2025-08-01CLARK IAN TDirectorGrant7K$0.00$07K
2025-05-20Burkhart ErinGVP, Chief Accounting OfficerSell2K$59.31$106K14K
2025-05-20ANDERSON ELIZABETH MDirectorGrant7K$0.00$034K
2025-05-20Bodem Barbara W.DirectorGrant7K$0.00$014K
2025-05-20Countouriotis AthenaDirectorGrant7K$0.00$014K
2025-05-20Dere Willard HDirectorGrant7K$0.00$039K
2025-05-20Enyedy Mark JDirectorGrant7K$0.00$014K
2025-05-20Ho MaykinDirectorGrant7K$0.00$028K
2025-05-20HOMBACH ROBERT J.DirectorGrant7K$0.00$042K
2025-05-20MEIER RICHARD ADirectorGrant7K$0.00$0127K
2025-05-20Walbert Timothy PDirectorGrant7K$0.00$010K
2025-05-20Hubbard CristinEVP, Chief Commercial OfficerTax withholding2K$59.93$129K31K
2025-05-19Burkhart ErinGVP, Chief Accounting OfficerTax withholding996$59.27$59K16K
2025-05-02Hubbard CristinEVP, Chief Commercial OfficerSell273$64.92$18K33K
2025-04-30Hubbard CristinEVP, Chief Commercial OfficerGrant273$54.14$15K33K
2025-04-30Hardy AlexanderChief Executive OfficerGrant375$54.14$20K176K
2025-03-19Burkhart ErinGVP, Chief Accounting OfficerSell1K$71.52$93K17K
2025-03-17Hardy AlexanderChief Executive OfficerGrant44K$0.00$0176K
2025-03-17Mueller BrianEVP, Chief Financial OfficerGrant17K$0.00$0100K
2025-03-17Guyer Charles GregEVP, Chief Technical OfficerGrant13K$0.00$081K
2025-03-17Friberg Gregory REVP, Chief R&D OfficerGrant18K$0.00$047K
2025-03-17Hubbard CristinEVP, Chief Commercial OfficerGrant13K$0.00$033K
2025-03-17Davis George EricEVP, Chief Legal OfficerGrant13K$0.00$083K
2025-03-17Burkhart ErinGVP, Chief Accounting OfficerGrant6K$0.00$018K
2025-03-14Hardy AlexanderChief Executive OfficerTax withholding3K$69.44$204K131K
2025-03-14Mueller BrianEVP, Chief Financial OfficerTax withholding18K$69.44$1.3M83K
2025-03-14Guyer Charles GregEVP, Chief Technical OfficerTax withholding20K$69.44$1.4M68K
2025-03-14Davis George EricEVP, Chief Legal OfficerTax withholding16K$69.44$1.1M70K
2025-03-14Burkhart ErinGVP, Chief Accounting OfficerTax withholding823$69.44$57K12K
2025-03-06Guyer Charles GregEVP, Chief Technical OfficerSell7K$71.28$501K88K
2025-02-28Guyer Charles GregEVP, Chief Technical OfficerTax withholding4K$71.16$305K95K
2025-02-25Davis George EricEVP, Chief Legal OfficerGrant9K$0.00$086K
2025-02-25Davis George EricEVP, Chief Legal OfficerGrant11K$0.00$067K
2025-02-25Davis George EricEVP, Chief Legal OfficerGrant10K$0.00$077K
2025-02-25Guyer Charles GregEVP, Chief Technical OfficerGrant10K$0.00$090K
2025-02-25Guyer Charles GregEVP, Chief Technical OfficerGrant9K$0.00$099K
2025-02-25Guyer Charles GregEVP, Chief Technical OfficerGrant11K$0.00$080K
2025-02-25Mueller BrianEVP, Chief Financial OfficerGrant10K$0.00$092K
2025-02-25Mueller BrianEVP, Chief Financial OfficerGrant9K$0.00$0102K
2025-02-25Mueller BrianEVP, Chief Financial OfficerGrant11K$0.00$083K
2025-02-24Burkhart ErinGVP, Chief Accounting OfficerSell1K$68.38$92K13K
2025-02-24Walbert Timothy PDirectorGrant3K$0.00$03K
2024-11-29Hardy AlexanderChief Executive OfficerTax withholding14K$66.03$944K134K
2024-11-12Guyer Charles GregEVP, Chief Technical OfficerSell5K$66.37$350K69K
2024-10-31Guyer Charles GregEVP, Chief Technical OfficerGrant55$56.01$3K74K
2024-10-31Hardy AlexanderChief Executive OfficerGrant300$56.01$17K148K
2024-09-30Friberg Gregory REVP, Chief R&D OfficerGrant8K$0.00$029K
2024-09-30Friberg Gregory REVP, Chief R&D OfficerGrant21K$0.00$021K
2024-09-13FUCHS HENRY JPresident, Worldwide R&DTax withholding12K$84.90$1.0M185K
2024-08-13Burkhart ErinGVP, Chief Accounting OfficerSell714$90.00$64K14K
2024-06-28Mueller BrianEVP, Chief Financial OfficerTax withholding588$82.33$48K72K
2024-06-03MEIER RICHARD ADirectorExercise or conversion7K$63.10$416K126K
2024-06-03MEIER RICHARD ADirectorTax withholding5K$76.41$417K121K
2024-06-03HERON ELAINE JDirectorExercise or conversion5K$63.10$318K102K

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 rarer.

Planned sales (Form 144)

Newest first. JSON

5 Form 144 notices on file for BMRN worth $4.3M at the prices reported; 1 in the last 90 days worth $1.2M. Latest: Davis George Eric filed on 2026-09-02 to sell 17,557 shares ($1.2M) from 2026-09-02.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-02Davis George EricOfficer18K$1.2M0.009%2026-09-02Fidelity Brokerage Services LLC
2026-05-07Friberg Gregory ROfficer3K$177K0.002%2026-05-07Fidelity Brokerage Services LLC
2026-03-11Guyer Charles GregOfficer16K$997K0.009%2026-03-11Fidelity Brokerage Services LLC
2026-02-26Friberg Gregory ROfficer6K$382K0.003%2026-02-26Fidelity Brokerage Services LLC
2026-02-26Davis George EricOfficer26K$1.6M0.014%2026-02-26Fidelity Brokerage Services LLC

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

2 holders report 5% or more of BMRN in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 9.1% of the class (17,560,751 shares), filed 2026-01-21 for an event on 2025-12-31.

FiledFormHolderSharesOf classEvent
2026-04-2913GVanguard Capital Managementinvestment adviser10.1M5.3%2026-03-31
2026-03-2613G/Ano. 12The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-01-2113G/Ano. 13BlackRock, Inc.parent holding company17.6M9.1%2025-12-31
2025-11-1413G/Ano. 2Shabet Rose Sharonindividual8.3M4.3%2025-09-30
2025-11-1413G/Ano. 2VIKING GLOBAL INVESTORS LPpartnership8.3M4.3%2025-09-30
2025-11-1413G/Ano. 2HALVORSEN OLE ANDREASindividual8.3M4.3%2025-09-30
2025-11-1413G/Ano. 2Ott David C.individual8.3M4.3%2025-09-30
2025-11-1413G/Ano. 2Viking Global Equities Master Ltd.corporation5.3M2.8%2025-09-30
2025-11-1413G/Ano. 2VIKING GLOBAL PERFORMANCE LLCother entity5.4M2.8%2025-09-30
2025-11-1413G/Ano. 2Viking Long Fund GP LLCother entity2.1M1.1%2025-09-30
2025-11-1413G/Ano. 2Viking Long Fund Master Ltd.corporation2.1M1.1%2025-09-30
2025-11-1413G/Ano. 2Viking Global Opportunities Portfolio GP LLCother entity831K0.4%2025-09-30
2025-11-1413G/Ano. 2Viking Global Opportunities Liquid Portfolio Sub-Master LPpartnership831K0.4%2025-09-30
2025-11-1413G/Ano. 2Viking Global Opportunities GP LLCother entity831K0.4%2025-09-30
2025-11-1413G/Ano. 2Viking Global Opportunities Parent GP LLCother entity831K0.4%2025-09-30
2025-11-1413G/Ano. 2Viking Global Equities II LPpartnership108K0.1%2025-09-30

13F holders

Tracked managers holding BMRN at their latest 13F. JSON

9 of the 30 tracked managers held BMRN at their latest 13F, $991.7M in total at quarter-end prices. Viking Global Investors is the largest at $435.8M (1.2% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 7 cut.

FundQuarterSharesValueOf portfolioChange in shares
Viking Global Investors2026-06-307.6M$435.8M1.24%+554K
AQR Capital Management2026-06-305.7M$322.5M0.11%-2.0M
Millennium Management2026-06-302.1M$118.5M0.04%-938K
Citadel Advisors2026-06-301.1M$64.2M0.01%-3.4M
Renaissance Technologies2026-06-30452K$25.9M0.04%-573K
Bridgewater Associates2026-06-30275K$15.7M0.06%+68K
D. E. Shaw & Co.2026-06-3092K$5.3M0.00%-190K
Fisher Asset Management2026-06-3035K$2.0M0.00%-91
Two Sigma Investments2026-06-3029K$1.6M0.00%-16K

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 FY 2026 (quarter ended 2026-06-30) Biomarin Pharmaceutical reported revenue of $989.7M, up 19.9% from the same quarter a year earlier, and net income of $44.8M (0.23 diluted EPS). In FY 2025 it generated $828.0M of operating cash flow. As of 2026-06-30, cash was $874.0M against $4.19B of debt.

Cash
$874.0M
Debt
$4.19B
Equity
$6.32B
Total assets
$11.72B
Shares outstanding
193,573,759

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$989.7M$44.8M4.5%0.23
Q1 FY 20262026-03-31$766.2M$105.5M13.8%0.54
Q4 FY 2025derived2025-12-31$874.6M-$46.6M-5.3%n/a
Q3 FY 20252025-09-30$776.1M-$30.7M-4.0%-0.16
Q2 FY 20252025-06-30$825.4M$240.5M29.1%1.23
Q1 FY 20252025-03-31$745.1M$185.7M24.9%0.95
Q4 FY 2024derived2024-12-31$747.3M$124.9M16.7%n/a
Q3 FY 20242024-09-30$745.7M$106.1M14.2%0.55

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$3.22B$348.9M$828.0M$103.0Mn/an/a
FY 20242024-12-31$2.85B$426.9M$572.8M$85.4Mn/an/a
FY 20232023-12-31$2.42B$167.6M$159.3M$96.7Mn/an/a
FY 20222022-12-31$2.10B$141.6M$175.9M$121.0M$0n/a
FY 20212021-12-31$1.85B-$64.1M$304.5M$95.6M$0n/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 the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-28 from the cover page.

What this page is

Biomarin Pharmaceutical 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 puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, 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 one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Biomarin Pharmaceutical (BMRN), SEC CIK 1048477, listed on Nasdaq, classified by the SEC as pharmaceutical preparations. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-02.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-29.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-10-06.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-30.JSON and CSV
Company record
EDGAR filing index for CIK 1048477Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

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 large short position are rare and stand out; insider sells next to one 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 BMRN is sold short?
12,050,657 shares were held short at the 2026-10-15 settlement, 4.9 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 BMRN's daily short volume?
On 2026-10-28, 450,033 of the 770,528 BMRN shares reported to FINRA were sold short, 58.4% of the day's reported volume. Short volume is a flow for one day, not a position.
Does BMRN have fails to deliver?
The SEC's latest file shows 260 BMRN shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.
Are BMRN insiders buying or selling?
Insiders at BMRN reported 1 open-market sell worth $1.2M in the last 90 days and no open-market buys. Latest filing: Friberg Gregory R (EVP, Chief R&D Officer) on 2026-09-30.
Have BMRN insiders filed to sell?
5 Form 144 notices on file for BMRN worth $4.3M at the prices reported; 1 in the last 90 days worth $1.2M. Latest: Davis George Eric filed on 2026-09-02 to sell 17,557 shares ($1.2M) from 2026-09-02.
Who owns 5% or more of BMRN?
2 holders report 5% or more of BMRN in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 9.1% of the class (17,560,751 shares), filed 2026-01-21 for an event on 2025-12-31.
What did BMRN report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Biomarin Pharmaceutical reported revenue of $989.7M, up 19.9% from the same quarter a year earlier, and net income of $44.8M (0.23 diluted EPS). In FY 2025 it generated $828.0M of operating cash flow. As of 2026-06-30, cash was $874.0M against $4.19B of debt.
Which tracked 13F managers own BMRN?
9 of the 30 tracked 13F managers held BMRN shares at their latest filing, $991.7M in all. The largest: Andreas Halvorsen's Viking Global Investors (7.6M shares, $435.8M), Cliff Asness's AQR Capital Management (5.7M shares, $322.5M), Izzy Englander's Millennium Management (2.1M shares, $118.5M), Ken Griffin's Citadel Advisors (1.1M shares, $64.2M), Renaissance Technologies (452K shares, $25.9M), Ray Dalio's Bridgewater Associates (275K shares, $15.7M). The table above lists all 9.

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