XOOMAR

NovoCure Ltd (NVCR)

Every FINRA and SEC series the site collects for NovoCure Ltd: 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 surgical & medical instruments & apparatus.

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10.8M

Short interest

settlement 2026-08-31

7.6

Days to cover

+17.6% vs prior

47.6%

Short share of volume

2026-09-17

1,422

Fails to deliver

settlement 2026-08-31

Thu 29 Oct

Next earnings

estimated; last year 2025-10-30

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-09-17.

Short interest

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

As of 31 August 2026, short interest in NVCR is 10,788,851 shares, up 651,305 shares over the last month. Over the last 48 readings it ranged from 4,640,412 shares (30 May 2025) to 11,884,203 shares (30 June 2026). At the reported average volume of 1.4M shares a day that is 7.6 days to cover, elevated.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-3110,788,851+17.6%1,414,0777.63
2026-08-149,170,033-9.5%1,096,0678.37
2026-07-3110,137,546-11.5%2,072,3524.89
2026-07-1511,460,044-3.6%1,530,5487.49
2026-06-3011,884,203+23.1%1,924,0976.18
2026-06-159,650,837+5.4%1,615,1695.98
2026-05-299,153,119+7.2%1,323,0146.92
2026-05-158,541,120+22.6%1,993,6574.28
2026-04-306,967,267-20.0%1,710,2074.07
2026-04-158,707,784-3.8%1,056,1878.24
2026-03-319,055,343+6.3%1,280,0097.07
2026-03-138,518,264-6.7%1,410,5606.04
2026-02-279,127,904+2.6%2,568,6763.55
2026-02-138,899,112+11.7%3,671,4542.42
2026-01-307,970,704+7.2%1,036,0487.69
2026-01-157,432,511-10.8%1,330,3105.59
2025-12-318,333,839+20.0%1,066,3647.82
2025-12-156,943,501+1.7%2,261,7753.07
2025-11-286,827,285+14.3%1,460,3424.68
2025-11-145,971,436+4.5%1,874,7883.19
2025-10-315,711,586+8.9%1,237,6274.61
2025-10-155,242,339-8.8%2,036,2642.57
2025-09-305,745,021-2.4%1,566,4593.67
2025-09-155,886,314-1.3%1,480,0043.98

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 17 September 2026, the short share of NVCR volume is 47.6%, down 29.9 points over the last five sessions. Over the last 52 readings it ranged from 18.0% (19 August 2026) to 82.7% (8 September 2026). The latest reading is 12.5 points below the 30-session average of 60.1%, on 464K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-17221K464K47.6%2
2026-09-16240K356K67.3%1
2026-09-15192K278K69.0%108
2026-09-14260K351K74.1%72
2026-09-11250K358K69.9%133
2026-09-10493K636K77.5%116
2026-09-09280K379K73.9%0
2026-09-08475K574K82.7%70
2026-09-04127K225K56.4%98
2026-09-03172K246K69.9%1,342
2026-09-02222K349K63.7%46
2026-09-01174K297K58.6%512
2026-08-31173K277K62.4%0
2026-08-28145K220K65.9%2,500
2026-08-27132K231K57.1%0
2026-08-26183K268K68.3%0
2026-08-25208K326K63.8%1,215
2026-08-24163K251K65.0%53
2026-08-21166K292K56.8%0
2026-08-20197K418K47.3%1,005
2026-08-19290K1.6M18.0%692
2026-08-18168K288K58.3%55
2026-08-17180K332K54.2%58
2026-08-14185K250K74.1%172
2026-08-13115K216K53.3%284
2026-08-1283K245K33.9%5
2026-08-11173K342K50.5%5,056
2026-08-10147K362K40.7%10
2026-08-07164K309K53.1%100
2026-08-06234K331K70.9%60

Fails to deliver

SEC, by settlement date. JSON

As of 31 August 2026, the fails-to-deliver balance in NVCR is 1,422 shares, down 20,860 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (18 August 2025) to 52,177 shares (4 August 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-311,422$17.82$25K
2026-08-2722,282$17.89$399K
2026-08-241,376$17.10$24K
2026-08-11366$17.31$6K
2026-08-0452,177$15.32$799K
2026-07-16279$16.03$4K
2026-07-15443$15.55$7K
2026-06-15161$17.78$3K
2026-06-102$17.24$34
2026-05-2629,728$17.96$534K
2026-05-18950$17.58$17K
2026-05-12488$18.10$9K
2026-05-08468$16.83$8K
2026-05-04743$16.62$12K
2026-04-3015$11.93$179
2026-04-28473$12.48$6K
2026-04-27153$12.47$2K
2026-04-23414$13.02$5K
2026-04-22484$12.23$6K
2026-04-2118,366$12.67$233K
2026-04-208,133$12.83$104K
2026-04-17455$12.62$6K
2026-04-16187$12.17$2K
2026-04-07108$10.55$1K
2026-04-06257$10.55$3K
2026-02-251,605$11.74$19K
2026-02-201,775$11.39$20K
2026-02-171,238$10.99$14K
2026-02-13141$12.53$2K
2026-02-03518$12.19$6K

Insider trades

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

No open-market insider trades were reported for NVCR in the last 90 days. The most recent filings are listed below; grants and option exercises carry a weaker signal than voluntary trades. Latest filing: Leonard Frank X (Chief Executive Officer) on 2026-06-04.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-06-04Leonard Frank XChief Executive OfficerSell34K$17.93$615K460K
2026-06-03Stafford Kristinn/aGrant12K$0.00$023K
2026-06-03Ocean Allyson Jn/aGrant12K$0.00$023K
2026-06-03Scannell Timothy Jn/aGrant12K$0.00$026K
2026-06-03VERNON W ANTHONYn/aGrant12K$0.00$0209K
2026-06-03Madden Martin J.n/aGrant12K$0.00$030K
2026-06-03LEUNG GABRIELn/aGrant12K$0.00$0101K
2026-06-03Hung Davidn/aGrant12K$0.00$032K
2026-06-03HILLEMAN JERYL Ln/aGrant12K$0.00$025K
2026-06-02Stafford Kristinn/aSell3K$15.77$46K11K
2026-06-02Ocean Allyson Jn/aSell3K$15.77$46K11K
2026-06-02Scannell Timothy Jn/aSell3K$15.77$46K14K
2026-06-02VERNON W ANTHONYn/aSell3K$15.77$46K198K
2026-06-02LEUNG GABRIELn/aSell3K$15.77$46K89K
2026-06-02Hung Davidn/aSell3K$15.77$46K20K
2026-06-02HILLEMAN JERYL Ln/aSell3K$15.77$46K14K
2026-04-28VERNON W ANTHONYn/aOption exercise22K$11.39$245K201K
2026-03-05Paravasthu MukundChief Operating OfficerSell43K$13.77$596K73K
2026-03-04Paravasthu MukundChief Operating OfficerSell5K$13.31$72K116K
2026-03-04Puri Michal NathChief Human Resources OfficerSell1K$13.31$15K201K
2026-03-04Weinberg UriChf Medical and Innovation OfrSell6K$13.31$85K267K
2026-03-04Leupin NicolasFormer Chief Medical OfficerSell1K$13.31$15K103K
2026-03-04Leonard Frank XChief Executive OfficerSell6K$13.31$75K494K
2026-03-04Cordova AshleyFormer Chief Executive OfficerTax withholding18K$13.30$235K423K
2026-03-04Brackmann ChristophChief Financial OfficerSell6K$13.31$85K183K
2026-03-03Paravasthu MukundChief Operating OfficerGrant45K$0.00$0121K
2026-03-03Puri Michal NathChief Human Resources OfficerGrant40K$0.00$0202K
2026-03-03Weinberg UriChf Medical and Innovation OfrGrant50K$0.00$0274K
2026-03-03Leonard Frank XChief Executive OfficerGrant150K$0.00$0499K
2026-03-03DOYLE WILLIAM FExecutive ChairmanSell21K$13.43$286K328K
2026-03-03DOYLE WILLIAM FExecutive ChairmanSell51K$12.79$646K350K
2026-03-03DOYLE WILLIAM FExecutive ChairmanGrant200K$0.00$0400K
2026-03-03DOYLE WILLIAM FExecutive ChairmanGrant200K$0.00$0200K
2026-03-03Brackmann ChristophChief Financial OfficerGrant55K$0.00$0189K
2026-03-03Ben Arye BarakGeneral CounselGrant50K$0.00$0242K
2026-03-02Paravasthu MukundChief Operating OfficerSell408$13.49$6K76K
2026-03-02Weinberg UriChf Medical and Innovation OfrSell3K$13.33$44K223K
2026-03-02Leonard Frank XChief Executive OfficerSell7K$13.49$98K349K
2026-03-02Cordova AshleyFormer Chief Executive OfficerTax withholding7K$13.67$99K440K
2026-03-02Cordova AshleyFormer Chief Executive OfficerTax withholding2K$13.67$33K447K
2026-02-28Weinberg UriChf Medical and Innovation OfrGrant13K$0.00$0227K
2026-02-28Leonard Frank XChief Executive OfficerGrant19K$0.00$0357K
2026-02-28Cordova AshleyFormer Chief Executive OfficerGrant24K$0.00$0450K
2026-02-28Ben Arye BarakGeneral CounselGrant18K$0.00$0192K
2026-02-27Paravasthu MukundChief Operating OfficerSell2K$13.66$21K77K
2026-02-27Puri Michal NathChief Human Resources OfficerSell1K$13.66$20K162K
2026-02-27Weinberg UriChf Medical and Innovation OfrSell7K$13.84$103K214K
2026-02-27Leupin NicolasFormer Chief Medical OfficerSell1K$13.66$14K104K
2026-02-27Leonard Frank XChief Executive OfficerSell10K$13.66$133K338K
2026-02-27Cordova AshleyFormer Chief Executive OfficerTax withholding12K$13.75$159K426K

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

12 Form 144 notices on file for NVCR worth $3.4M at the prices reported; 1 in the last 90 days worth $609K. Latest: NICOLAS LEUPIN filed on 2026-07-23 to sell 39,088 shares ($609K) from 2026-07-23.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-07-23NICOLAS LEUPINOfficer39K$609K0.034%2026-07-23Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-04FRANCIS LEONARDOfficer34K$615K0.030%2026-06-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-05MUKUND PARAVASTHUOfficer43K$596K0.038%2026-03-05Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-04URI WEINBERGOfficer6K$85K0.006%2026-03-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-04MUKUND PARAVASTHUOfficer5K$72K0.005%2026-03-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-04FRANCIS LEONARDOfficer6K$75K0.005%2026-03-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-04CHRISTOPH BRACKMANNOfficer6K$85K0.006%2026-03-04Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-03WILLIAM DOYLEOfficer, Director72K$933K0.063%2026-03-03Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-02URI WEINBERGOfficer3K$44K0.003%2026-03-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-02FRANCIS LEONARDOfficer7K$98K0.006%2026-03-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-27URI WEINBERGOfficer7K$103K0.007%2026-02-27Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-27FRANCIS LEONARDOfficer10K$133K0.009%2026-02-27Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

9 holders above 5% have filed on NVCR, all on Schedule 13G (passive). The largest reported stake is Guy Levy at 9.1% of the class (10,492,391 shares), filed 2026-05-08 for an event on 2026-03-31.

FiledFormHolderSharesOf classEvent
2026-05-0813G/Ano. 4Guy Levyindividual10.5M9.1%2026-03-31
2026-05-0813G/Ano. 4Soleus Capital Management, L.P.partnership10.5M9.1%2026-03-31
2026-05-0813G/Ano. 4Soleus Capital Master Fund, L.P.non-US institution10.5M9.1%2026-03-31
2026-05-0813G/Ano. 4Soleus GP, LLCother entity10.5M9.1%2026-03-31
2026-05-0813G/Ano. 4Soleus Capital Group, LLCother entity10.5M9.1%2026-03-31
2026-05-0813G/Ano. 4Soleus Capital, LLCother entity10.5M9.1%2026-03-31
2026-04-2813GVanguard Portfolio Managementinvestment adviser6.3M5.6%2026-03-31
2026-03-2613G/Ano. 8The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-1213G/Ano. 3Soleus Capital Management, L.P.partnership8.5M7.6%2025-12-31
2026-02-1213G/Ano. 3Soleus Capital Master Fund, L.P.non-US institution8.5M7.6%2025-12-31
2026-02-1213G/Ano. 3Soleus Capital, LLCother entity8.5M7.6%2025-12-31
2026-02-1213G/Ano. 3Soleus Capital Group, LLCother entity8.5M7.6%2025-12-31
2026-02-1213G/Ano. 3Soleus GP, LLCother entity8.5M7.6%2025-12-31
2026-02-1213G/Ano. 3Guy Levyindividual8.5M7.6%2025-12-31
2025-11-1313G/Ano. 1Capital World Investorsinvestment adviser2.0M1.8%2025-09-30
2025-11-0713G/Ano. 2Guy Levyindividual9.6M8.6%2025-09-30
2025-11-0713G/Ano. 2Soleus Capital Master Fund, L.P.non-US institution9.6M8.6%2025-09-30
2025-11-0713G/Ano. 2Soleus Capital Management, L.P.partnership9.6M8.6%2025-09-30
2025-11-0713G/Ano. 2Soleus Capital Group, LLCother entity9.6M8.6%2025-09-30
2025-11-0713G/Ano. 2Soleus Capital, LLCother entity9.6M8.6%2025-09-30
2025-11-0713G/Ano. 2Soleus GP, LLCother entity9.6M8.6%2025-09-30

13F holders

Tracked managers holding NVCR at their latest 13F. JSON

7 of the 30 tracked managers held NVCR at their latest 13F, $84.1M in total at quarter-end prices. Renaissance Technologies is the largest at $29.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-302.0M$29.6M0.04%+400K
AQR Capital Management2026-06-301.1M$16.7M0.01%+827K
D. E. Shaw & Co.2026-06-301.0M$15.5M0.01%+375K
Point72 Asset Management2026-06-30803K$12.2M0.01%-558K
Citadel Advisors2026-06-30374K$5.7M0.00%+175K
Millennium Management2026-06-30278K$4.2M0.00%+187K
Two Sigma Investments2026-06-3021K$321K0.00%-24K

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) NovoCure Ltd reported revenue of $183.6M, up 15.6% from the same quarter a year earlier, and net loss of $15.7M (-0.13 diluted EPS). In FY 2024 it generated -$26.4M of operating cash flow.

Cash
$93.7M
Equity
$338.1M
Total assets
$795.2M
Shares outstanding
116,445,840

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$183.6M-$15.7M-8.5%-0.13
Q1 20262026-03-31$174.1M-$71.1M-40.9%-0.62
Q3 20252025-09-30$167.2M-$37.3M-22.3%-0.33
Q2 20252025-06-30$158.8M-$40.1M-25.3%-0.36
Q1 20252025-03-31$155.0M-$34.3M-22.1%-0.31
Q4 2024derived2024-12-31$161.3Mn/an/an/a
Q3 20242024-09-30$155.1M-$30.6M-19.7%-0.28
Q2 20242024-06-30$150.4M-$33.4M-22.2%-0.31

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20242024-12-31$605.2Mn/a-$26.4M$42.9Mn/an/a
FY 20232023-12-31$509.3Mn/a-$73.3M$27.1Mn/an/a
FY 20222022-12-31$537.8Mn/a$30.8M$21.4Mn/an/a
FY 20212021-12-31$535.0Mn/a$82.8M$24.2Mn/an/a
FY 20202020-12-31$494.4M$19.8M$99.1M$15.0Mn/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 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 2026-07-17 from the cover page.

What this page is

NovoCure Ltd 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 NovoCure Ltd (NVCR), SEC CIK 1645113, listed on Nasdaq, classified by the SEC as surgical & medical instruments & apparatus. 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 2026-08-31.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-17.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-31.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-07-23.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 2026-05-08.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
Earnings dates
SEC EDGAR 8-K Item 2.02 (full-text search)EDGAR full-text search read twice a day; the estimate is last year's date plus 52 weeks. Latest 2026-07-23.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-06-04.JSON and CSV
Company record
EDGAR filing index for CIK 1645113Ticker, 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, 18 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 NVCR is sold short?
10,788,851 shares were held short at the 2026-08-31 settlement, 7.6 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 NVCR's daily short volume?
On 2026-09-17, 221,286 of the 464,455 NVCR shares reported to FINRA were sold short, 47.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NVCR have fails to deliver?
The SEC's latest file shows 1,422 NVCR shares failed to deliver at settlement 2026-08-31. Fails are reported per settlement date and published twice a month with a lag.
Are NVCR insiders buying or selling?
No open-market insider trades were reported for NVCR in the last 90 days. The most recent filings are listed below; grants and option exercises carry a weaker signal than voluntary trades. Latest filing: Leonard Frank X (Chief Executive Officer) on 2026-06-04.
Have NVCR insiders filed to sell?
12 Form 144 notices on file for NVCR worth $3.4M at the prices reported; 1 in the last 90 days worth $609K. Latest: NICOLAS LEUPIN filed on 2026-07-23 to sell 39,088 shares ($609K) from 2026-07-23.
Who owns more than 5% of NVCR?
9 holders above 5% have filed on NVCR, all on Schedule 13G (passive). The largest reported stake is Guy Levy at 9.1% of the class (10,492,391 shares), filed 2026-05-08 for an event on 2026-03-31.
What did NVCR report last quarter?
In Q2 2026 (quarter ended 2026-06-30) NovoCure Ltd reported revenue of $183.6M, up 15.6% from the same quarter a year earlier, and net loss of $15.7M (-0.13 diluted EPS). In FY 2024 it generated -$26.4M of operating cash flow.
Which funds hold NVCR?
7 of the 30 tracked managers held NVCR at their latest 13F, $84.1M in total at quarter-end prices. Renaissance Technologies is the largest at $29.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 2 cut.

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