XOOMAR

Natera (NTRA)

Natera 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 services-medical laboratories.

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6.4M

Short interest

settlement 2026-09-30

3.2

Days to cover

-1.5 days vs prior

48.5%

Short share of volume

2026-10-09

2

Fails to deliver

settlement 2026-09-08

Thu 5 Nov

Next earnings

estimated date

-$84.8M

Insider flow, 90 days

0 buys, 121 sells

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in NTRA is 6,355,450 shares, up 841,272 shares over the last month. Over the last 48 readings it ranged from 2,490,476 shares (14 February 2025) to 6,355,450 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 2.0M shares a day that is 3.2 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-306,355,450+32.5%1,983,0533.20
2026-09-154,797,175-13.0%1,021,3824.70
2026-08-315,514,178+28.4%1,261,3674.37
2026-08-144,295,245-1.6%1,642,7552.61
2026-07-314,365,205-12.1%931,7294.69
2026-07-154,964,646-14.7%1,374,4023.61
2026-06-305,820,616+34.9%2,115,7942.75
2026-06-154,315,003+19.4%1,078,9284.00
2026-05-293,614,976-4.5%1,623,9492.23
2026-05-153,784,076-6.0%1,887,1382.01
2026-04-304,023,864+6.7%1,215,5713.31
2026-04-153,771,349-22.5%1,387,8032.72
2026-03-314,867,085+47.2%1,179,3534.13
2026-03-133,306,015+10.6%1,313,2842.52
2026-02-272,990,382-8.8%1,048,3122.85
2026-02-133,278,179-3.7%1,263,2512.60
2026-01-303,403,232-1.5%986,0323.45
2026-01-153,456,165-27.2%1,229,5222.81
2025-12-314,747,257+39.8%1,024,8964.63
2025-12-153,395,341-15.5%1,212,5692.80
2025-11-284,019,572+7.0%1,951,3232.06
2025-11-143,756,691-3.9%1,612,9692.33
2025-10-313,907,627+1.1%1,155,3173.38
2025-10-153,863,996-29.1%1,111,4853.48

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of NTRA volume is 48.5%, up 13.7 points over the last five sessions. Over the last 30 readings it ranged from 31.4% (5 October 2026) to 76.0% (15 September 2026). The latest reading is in line with the 30-session average of 49.3%, on 561K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-09272K561K48.5%1
2026-10-08369K887K41.5%523
2026-10-07430K1.1M37.8%3,377
2026-10-06582K1.3M44.8%883
2026-10-05297K947K31.4%4,700
2026-10-02301K864K34.9%1,509
2026-10-01418K915K45.7%2,906
2026-09-30451K909K49.6%172
2026-09-29434K859K50.5%350
2026-09-28545K968K56.3%2,544
2026-09-25432K908K47.6%198
2026-09-24358K976K36.6%283
2026-09-23360K893K40.3%10
2026-09-22427K796K53.7%118
2026-09-21352K713K49.4%224
2026-09-18297K702K42.3%5,230
2026-09-17348K650K53.5%213
2026-09-16316K551K57.4%468
2026-09-15727K957K76.0%1,722
2026-09-14211K413K51.1%508
2026-09-11205K412K49.8%343
2026-09-10230K452K51.0%55
2026-09-09185K323K57.5%181
2026-09-08296K473K62.7%10
2026-09-04260K426K60.9%0
2026-09-03169K341K49.6%301
2026-09-02320K618K51.7%1,902
2026-09-01261K514K50.8%154
2026-08-31188K390K48.2%1,555
2026-08-28195K408K47.8%8,546

Fails to deliver

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

As of 8 September 2026, the fails-to-deliver balance in NTRA is 2 shares, down 26,970 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (9 July 2026) to 26,972 shares (24 August 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-082$328.18$656
2026-08-2426,972$332.03$9.0M
2026-08-106,433$322.10$2.1M
2026-08-043,216$270.36$869K
2026-07-301$253.82$254
2026-07-23774$264.22$205K
2026-07-211$262.63$263
2026-07-2010,224$271.39$2.8M
2026-07-17173$269.83$47K
2026-07-15292$272.66$80K
2026-07-091$274.39$274
2026-07-0733$283.80$9K
2026-07-01104$271.45$28K
2026-06-30121$272.31$33K
2026-06-251,370$259.97$356K
2026-06-22500$231.41$116K
2026-06-1822$226.44$5K
2026-06-153,539$212.07$751K
2026-06-1215,326$219.23$3.4M
2026-06-10949$222.82$211K
2026-06-09104$213.47$22K
2026-06-045,154$211.85$1.1M
2026-06-035$212.73$1K
2026-06-022$218.81$438
2026-05-2912,831$213.94$2.7M
2026-04-24571$201.14$115K
2026-04-21516$207.74$107K
2026-04-17967$196.11$190K
2026-04-15622$214.64$134K
2026-04-08188$209.27$39K

Insider trades

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

Insiders at NTRA reported 121 open-market sells worth $84.8M in the last 90 days and no open-market buys. Latest filing: Rabinowitz Matthew (EXECUTIVE CHAIRMAN) on 2026-10-07.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-07Rabinowitz MatthewEXECUTIVE CHAIRMANGift6K$0.00$02.1M
2026-10-01Moshkevich SolomonPRESIDENT, CLINICALDIAGNOSTICSSell2K$415.07$766K107K
2026-10-01Moshkevich SolomonPRESIDENT, CLINICALDIAGNOSTICSSell954$413.11$394K109K
2026-10-01Moshkevich SolomonPRESIDENT, CLINICALDIAGNOSTICSSell200$411.62$82K110K
2026-10-01Chapman Steven LeonardCEO AND PRESIDENTSell1K$413.31$526K97K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell220$390.52$86K9K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell2K$389.71$754K9K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell1K$388.76$521K11K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell3K$387.74$1.1M12K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell2K$386.64$889K15K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell390$385.29$150K18K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell110$390.42$43K9K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell2K$389.69$904K9K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell1K$388.71$503K11K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell3K$387.65$1.1M13K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell2K$386.71$841K15K
2026-09-23Sheena JonathanDirector, CO-FOUNDERSell400$385.10$154K18K
2026-09-16Sheena JonathanDirector, CO-FOUNDERSell200$356.87$71K221K
2026-09-16Moshkevich SolomonPRESIDENT, CLINICALDIAGNOSTICSGift945$0.00$0110K
2026-09-16Sheena JonathanDirector, CO-FOUNDERSell800$355.95$285K222K
2026-09-16Sheena JonathanDirector, CO-FOUNDERSell450$354.91$160K222K
2026-09-16Sheena JonathanDirector, CO-FOUNDERSell1K$353.83$495K223K
2026-09-16Sheena JonathanDirector, CO-FOUNDERSell100$349.05$35K224K
2026-09-16Sheena JonathanDirector, CO-FOUNDERSell200$348.02$70K224K
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell3K$347.81$939K2.2M
2026-09-15Sheena JonathanDirector, CO-FOUNDERSell6K$350.07$2.1M224K
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$350.01$700K0
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell800$351.25$281K2.1M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell15K$350.81$5.1M2.1M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell4K$349.51$1.5M2.1M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell8K$348.65$2.8M2.1M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell1K$346.68$389K2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell3K$345.38$933K2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell6K$344.49$2.0M2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$343.56$770K2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$342.18$669K2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$341.41$619K2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell3K$340.25$867K2.2M
2026-09-15Rabinowitz MatthewEXECUTIVE CHAIRMANSell1K$339.24$502K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell4K$342.51$1.4M2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell3K$341.35$922K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$340.31$681K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$339.37$713K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell1K$338.30$474K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$337.17$744K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell8K$336.27$2.8M2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell4K$335.18$1.3M2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell3K$334.24$942K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell2K$333.07$748K2.2M
2026-09-14Rabinowitz MatthewEXECUTIVE CHAIRMANSell1K$332.02$332K2.2M

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

50 Form 144 notices on file for NTRA worth $255.3M at the prices reported; 16 in the last 90 days worth $86.6M. Latest: SOLOMON MOSHKEVICH filed on 2026-10-01 to sell 3,000 shares ($1.2M) from 2026-10-01.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-10-01SOLOMON MOSHKEVICHOfficer3K$1.2M0.002%2026-10-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-10-01STEVEN L CHAPMANOfficer, Director1K$526K0.001%2026-10-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-23Sheena JonathanDirector21K$8.2M0.015%2026-09-23Charles Schwab & Co., Inc.
2026-09-15TINKERBELLE II TR U/A DTD 10/22/2021Officer, Director2K$700K0.001%2026-09-15Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-11MATTHEW RABINOWITZDirector, Officer200K$65.2M0.139%2026-09-11Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-01SOLOMON MOSHKEVICHOfficer3K$962K0.002%2026-09-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-01STEVEN L CHAPMANOfficer, Director2K$545K0.001%2026-09-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-07TINKERBELLE II TR U/A DTD 10/22/2021Officer, Director2K$642K0.001%2026-08-07Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-07Sheena JonathanDirector18K$6.0M0.012%2026-08-07Charles Schwab & Co., Inc.
2026-08-04MICHAEL BROPHYOfficer478$129K0.000%2026-08-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-03SOLOMON MOSHKEVICHOfficer3K$796K0.002%2026-08-03Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-03STEVEN L CHAPMANOfficer, Director2K$503K0.001%2026-08-03Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-29MICHAEL BROPHYOfficer2K$470K0.001%2026-07-29Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-28MICHAEL BROPHYOfficer1K$304K0.001%2026-07-28Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-15Sheena JonathanDirector2K$413K0.001%2026-07-15Charles Schwab & Co., Inc.
2026-07-15ROWAN EMMA CHAPMANDirector135$37K0.000%2026-07-15Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-13Sheena JonathanDirector9K$2.5M0.007%2026-07-13Charles Schwab & Co., Inc.
2026-07-06TINKERBELLE II TR U/A DTD 10/22/2021Officer, Director1K$280K0.001%2026-07-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-01DANIEL RABINOWITZOfficer17K$4.6M0.012%2026-07-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-01SOLOMON MOSHKEVICHOfficer3K$819K0.002%2026-07-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-24DANIEL RABINOWITZOfficer34K$7.9M0.023%2026-06-24Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-24HERMAN ROSENMANDirector17K$4.1M0.012%2026-06-24Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-16ROWAN EMMA CHAPMANDirector3K$643K0.002%2026-06-16Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-12MATTHEW RABINOWITZDirector, Officer100K$21.9M0.070%2026-06-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-05GAIL MARCUSDirector11K$2.4M0.008%2026-06-05Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-04STEVEN L CHAPMANOfficer, Director41K$9.1M0.029%2026-06-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-01SOLOMON MOSHKEVICHOfficer3K$655K0.002%2026-06-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-01BV369 TRUSTAffiliate78K$17.2M0.054%2026-06-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-04MICHAEL BROPHYOfficer482$100K0.000%2026-05-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-01SOLOMON MOSHKEVICHOfficer3K$610K0.002%2026-05-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-29MICHAEL BROPHYOfficer3K$615K0.002%2026-04-29Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-01SOLOMON MOSHKEVICHOfficer3K$607K0.002%2026-04-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-20Sheena JonathanDirector6K$1.2M0.004%2026-03-20Charles Schwab & Co., Inc.
2026-03-18Sheena JonathanDirector12K$2.5M0.009%2026-03-18Charles Schwab & Co., Inc.
2026-03-13ROWAN EMMA CHAPMANDirector122$23K0.000%2026-03-13Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-12MATTHEW RABINOWITZDirector, Officer200K$39.3M0.141%2026-03-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-06DANIEL RABINOWITZOfficer17K$3.3M0.012%2026-03-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-02SOLOMON MOSHKEVICHOfficer3K$600K0.002%2026-03-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-02STEVEN L CHAPMANOfficer, Director4K$790K0.003%2026-03-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-03MICHAEL BROPHYOfficer6K$1.3M0.004%2026-02-03Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-02SOLOMON MOSHKEVICHOfficer3K$694K0.002%2026-02-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-02STEVEN L CHAPMANOfficer, Director85K$19.7M0.062%2026-02-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-29MICHAEL BROPHYOfficer2K$440K0.001%2026-01-29Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-28MICHAEL BROPHYOfficer1K$283K0.001%2026-01-28Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-21MICHAEL BROPHYOfficer37K$8.6M0.026%2026-01-21Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-02SOLOMON MOSHKEVICHOfficer3K$676K0.002%2026-01-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-02STEVEN L CHAPMANOfficer, Director4K$881K0.003%2026-01-02Morgan Stanley Smith Barney LLC Executive Financial Services
2025-12-19Sheena JonathanDirector5K$990K0.003%2025-12-19Charles Schwab & Co., Inc.
2025-12-17Sheena JonathanDirector9K$2.1M0.007%2025-12-17Charles Schwab & Co., Inc.
2025-12-12Herm Rosenman TrustBoard member48K$11.3M0.035%2025-12-12UBS Financial Services Inc

Large holders (13D and 13G)

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

3 holders report 5% or more of NTRA in their latest filing, all on Schedule 13G (passive). The largest reported stake is JPMORGAN CHASE & CO. at 9.1% of the class (12,825,640 shares), filed 2026-01-23 for an event on 2025-12-31.

FiledFormHolderSharesOf classEvent
2026-08-1413G/Ano. 4T. Rowe Price Associates, Inc.investment adviser9.0M6.3%2026-06-30
2026-04-3013GVanguard Capital Managementinvestment adviser7.2M5.1%2026-03-31
2026-03-2713G/Ano. 7The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-01-2313G/Ano. 2JPMORGAN CHASE & CO.parent holding company12.8M9.1%2025-12-31

13F holders

Tracked managers holding NTRA at their latest 13F. JSON

11 of the 30 tracked managers held NTRA at their latest 13F, $3.00B in total at quarter-end prices. Duquesne Family Office is the largest at $864.9M (16.6% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 5 cut.

FundQuarterSharesValueOf portfolioChange in shares
Duquesne Family Office2026-06-303.2M$864.9M16.60%+123K
Coatue Management2026-06-302.5M$680.0M1.40%-37K
AQR Capital Management2026-06-302.3M$628.1M0.22%+71K
D. E. Shaw & Co.2026-06-301.3M$347.3M0.17%+788K
ARK Investment Management2026-06-30689K$187.0M1.21%+5K
Viking Global Investors2026-06-30391K$106.1M0.30%new
Citadel Advisors2026-06-30266K$72.1M0.01%+154K
Point72 Asset Management2026-06-30253K$68.7M0.08%-191K
Millennium Management2026-06-30144K$39.1M0.01%-12K
Two Sigma Investments2026-06-3033K$8.8M0.01%-8K
Bridgewater Associates2026-06-306K$1.7M0.01%-19K

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) Natera reported revenue of $752.8M, up 37.7% from the same quarter a year earlier, and net loss of $67.0M (-0.47 diluted EPS). In FY 2025 it generated $215.3M of operating cash flow.

Equity
$1.82B
Total assets
$2.66B
Shares outstanding
144,144,170

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$752.8M-$67.0M-8.9%-0.47
Q1 FY 20262026-03-31$696.6M-$85.1M-12.2%-0.60
Q4 FY 2025derived2025-12-31$665.5M$47.3M7.1%n/a
Q3 FY 20252025-09-30$592.2M-$87.5M-14.8%-0.64
Q2 FY 20252025-06-30$546.6M-$100.9M-18.5%-0.74
Q1 FY 20252025-03-31$501.8M-$66.9M-13.3%-0.50
Q4 FY 2024derived2024-12-31$476.1M-$53.8M-11.3%n/a
Q3 FY 20242024-09-30$439.8M-$31.6M-7.2%-0.26

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$2.31B-$208.2M$215.3M$106.2Mn/an/a
FY 20242024-12-31$1.70B-$190.4M$135.7M$66.4Mn/an/a
FY 20232023-12-31$1.08B-$434.8M-$247.0M$39.2Mn/an/a
FY 20222022-12-31$820.2M-$547.8M-$431.5M$47.7Mn/an/a
FY 20212021-12-31$625.5M-$471.7M-$335.2M$41.0Mn/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 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 2026-07-31 from the cover page.

What this page is

Natera 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 Natera (NTRA), SEC CIK 1604821, listed on Nasdaq, classified by the SEC as services-medical laboratories. 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 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-08.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 2026-10-01.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 2026-08-14.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 2026-08-06.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 2026-10-07.JSON and CSV
Company record
EDGAR filing index for CIK 1604821Ticker, name and exchange from the SEC's company list, refreshed weekly.
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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 NTRA is sold short?
6,355,450 shares were held short at the 2026-09-30 settlement, 3.2 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 NTRA's daily short volume?
On 2026-10-09, 272,424 of the 561,375 NTRA shares reported to FINRA were sold short, 48.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NTRA have fails to deliver?
The SEC's latest file shows 2 NTRA shares failed to deliver at settlement 2026-09-08. Fails are reported per settlement date and published twice a month with a lag.
Are NTRA insiders buying or selling?
Insiders at NTRA reported 121 open-market sells worth $84.8M in the last 90 days and no open-market buys. Latest filing: Rabinowitz Matthew (EXECUTIVE CHAIRMAN) on 2026-10-07.
Have NTRA insiders filed to sell?
50 Form 144 notices on file for NTRA worth $255.3M at the prices reported; 16 in the last 90 days worth $86.6M. Latest: SOLOMON MOSHKEVICH filed on 2026-10-01 to sell 3,000 shares ($1.2M) from 2026-10-01.
Who owns 5% or more of NTRA?
3 holders report 5% or more of NTRA in their latest filing, all on Schedule 13G (passive). The largest reported stake is JPMORGAN CHASE & CO. at 9.1% of the class (12,825,640 shares), filed 2026-01-23 for an event on 2025-12-31.
What did NTRA report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Natera reported revenue of $752.8M, up 37.7% from the same quarter a year earlier, and net loss of $67.0M (-0.47 diluted EPS). In FY 2025 it generated $215.3M of operating cash flow.
Which tracked 13F managers own NTRA?
11 of the 30 tracked 13F managers held NTRA shares at their latest filing, $3.00B in all. The largest: Stanley Druckenmiller's Duquesne Family Office (3.2M shares, $864.9M), Philippe Laffont's Coatue Management (2.5M shares, $680.0M), Cliff Asness's AQR Capital Management (2.3M shares, $628.1M), D. E. Shaw & Co. (1.3M shares, $347.3M), Cathie Wood's ARK Investment Management (689K shares, $187.0M), Andreas Halvorsen's Viking Global Investors (391K shares, $106.1M). The table above lists all 11.

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