XOOMAR

Entera Bio (ENTX)

Entera Bio on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as biological products, (no diagnostic substances).

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5.5M

Short interest

settlement 2026-10-15

7.2

Days to cover

+2.0 days vs prior

63.1%

Short share of volume

2026-11-02

17,878

Fails to deliver

settlement 2026-10-14

Fri 13 Nov

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-11-02.

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 ENTX is 5,548,769 shares, up 4,266,951 shares over the last month. Over the last 48 readings it ranged from 36,427 shares (29 August 2025) to 5,548,769 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 773K shares a day that is 7.2 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-155,548,769+130.8%773,3737.17
2026-09-302,403,597+87.5%464,3195.18
2026-09-151,281,818+44.7%358,6523.57
2026-08-31885,945-7.4%358,3742.47
2026-08-14956,758-16.8%499,0231.92
2026-07-311,150,114+286.7%7,664,9011.00
2026-07-15297,452-10.6%225,2731.32
2026-06-30332,658+107.8%5,613,4731.00
2026-06-15160,118-9.9%55,5032.88
2026-05-29177,670-2.3%75,9212.34
2026-05-15181,768-5.5%134,4341.35
2026-04-30192,284-0.3%279,1101.00
2026-04-15192,781+10.0%140,4651.37
2026-03-31175,306+27.2%205,9531.00
2026-03-13137,789+10.9%128,1151.08
2026-02-27124,213+5.6%73,0181.70
2026-02-13117,639+14.9%285,7721.00
2026-01-30102,393+0.6%136,5731.00
2026-01-15101,784+2.8%394,3591.00
2025-12-3199,052-4.5%181,5131.00
2025-12-15103,678+0.6%72,1461.44
2025-11-28103,037-36.8%83,0361.24
2025-11-14162,978-17.1%135,1531.21
2025-10-31196,467+102.7%324,4831.00
2025-10-1596,923+86.9%212,7901.00
2025-09-3051,864+8.8%46,7771.11
2025-09-1547,685+30.9%124,5511.00
2025-08-2936,427-2.0%33,3161.09
2025-08-1537,177-33.0%89,2921.00
2025-07-3155,477+48.3%415,1391.00
2025-07-1537,398-32.4%37,4231.00
2025-06-3055,283-22.9%34,1731.62
2025-06-1371,686-9.5%38,8481.85
2025-05-3079,198+57.5%44,4781.78
2025-05-1550,296-64.2%30,0571.67
2025-04-30140,530+92.2%57,2402.46
2025-04-1573,121-2.2%36,5472.00
2025-03-3174,749-13.2%38,4161.95
2025-03-1486,138-13.7%65,1431.32
2025-02-2899,787-4.5%46,9202.13
2025-02-14104,477+59.6%95,8131.09
2025-01-3165,475-31.6%82,7641.00
2025-01-1595,791+102.4%413,5751.00
2024-12-3147,328-23.0%49,3761.00
2024-12-1361,465-2.4%77,1481.00
2024-11-2962,957+19.7%28,8492.18
2024-11-1552,613+19.2%216,4261.00
2024-10-3144,153+9.3%19,4102.27

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of ENTX volume is 63.1%, down 5.0 points over the last five sessions. Over the last 30 readings it ranged from 21.1% (29 September 2026) to 94.5% (8 October 2026). The latest reading is 2.8 points below the 30-session average of 65.9%, on 141K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-0289K141K63.1%0
2026-10-3063K151K41.7%0
2026-10-2930K52K57.8%0
2026-10-2854K80K67.7%108
2026-10-2741K90K45.4%0
2026-10-2665K95K68.1%0
2026-10-2388K152K57.6%0
2026-10-22447K488K91.6%0
2026-10-21466K532K87.6%0
2026-10-20317K456K69.6%125,435
2026-10-19506K604K83.8%252,346
2026-10-16135K253K53.4%44,733
2026-10-15721K879K82.0%152,901
2026-10-14480K547K87.8%5,000
2026-10-13269K432K62.3%355
2026-10-1260K112K54.1%12,080
2026-10-091.0M1.1M92.8%75,247
2026-10-08298K316K94.5%0
2026-10-07441K478K92.4%13,895
2026-10-06315K391K80.6%539
2026-10-05909K976K93.2%17,040
2026-10-0221K30K71.7%700
2026-10-01120K231K51.9%17,958
2026-09-3078K330K23.5%35,957
2026-09-2913K62K21.1%0
2026-09-2896K198K48.4%780
2026-09-25217K491K44.2%900
2026-09-2459K99K59.4%0
2026-09-23200K378K52.8%300
2026-09-22266K344K77.4%2,735

Fails to deliver

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

As of 14 October 2026, the fails-to-deliver balance in ENTX is 17,878 shares, down 115,536 shares over the last settlement date. Over the last 30 readings it ranged from 21 shares (7 October 2026) to 133,414 shares (13 October 2026).

SettlementShares failedPriceValue
2026-10-1417,878$2.49$45K
2026-10-13133,414$2.65$354K
2026-10-0721$2.53$53
2026-10-05283$2.86$809
2026-09-2811,078$2.75$30K
2026-09-258,776$2.80$25K
2026-09-247,640$2.81$21K
2026-09-221,495$2.96$4K
2026-09-1857,027$3.03$173K
2026-09-173,582$2.96$11K
2026-09-1666,476$2.86$190K
2026-09-154,559$2.82$13K
2026-09-1131,725$2.79$89K
2026-09-1010,359$2.84$29K
2026-09-093,035$3.01$9K
2026-09-0810,086$3.00$30K
2026-09-043,209$2.95$9K
2026-09-03552$2.92$2K
2026-09-0269$2.90$200
2026-08-261,809$3.47$6K
2026-08-2551$3.42$174
2026-08-2410,124$3.23$33K
2026-08-21861$3.22$3K
2026-08-197,276$2.89$21K
2026-08-1710,196$2.89$29K
2026-08-141,000$2.87$3K
2026-08-135,527$2.80$15K
2026-08-12548$3.00$2K
2026-08-103,760$2.87$11K
2026-08-078,124$2.82$23K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for ENTX in the last 90 days. The most recent filings are listed below. Latest filing: Rubin Steven D (Director) on 2026-08-07.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-07Rubin Steven DDirectorGrant19K$0.00$034K
2026-08-07Malca YonatanDirectorGrant23K$0.00$0100K
2026-08-07Taitel HayaDirectorGrant21K$0.00$0119K
2026-08-07Germano Geno JDirectorGrant25K$0.00$065K
2026-08-07Ellis SeanDirectorGrant20K$0.00$0208K
2026-07-14Toledano Miranda JayneChief Executive OfficerGrant73K$0.00$0847K
2026-07-14Toledano Miranda JayneChief Executive OfficerGrant348K$0.00$0774K
2026-05-07Galitzer HillelChief Operating OfficerGrant73K$0.00$0164K
2026-05-07Yaacov-Garbeli DanaChief Financial OfficerGrant58K$0.00$0171K
2026-05-07Burshtein GregoryChief of R&DGrant88K$0.00$0189K
2026-03-09Germano Geno JDirectorBuy20K$1.30$26K40K
2026-03-05Ellis SeanDirectorBuy10K$1.23$12K188K
2026-02-12Rubin Steven DDirectorBuy5K$1.49$7K15K
2026-02-10Taitel HayaDirectorBuy8K$1.48$11Kn/a
2026-02-10Germano Geno JDirectorBuy20K$1.49$30Kn/a
2026-02-09Rubin Steven DDirectorBuy10K$1.20$12K10K
2026-02-09Ellis SeanDirectorBuy18K$1.24$22K178K
2026-01-01OSTROV GERALD MDirectorGrant29K$0.00$076K
2026-01-01Malca YonatanDirectorGrant30K$0.00$077K
2026-01-01LIEBERMAN GERALD MDirectorGrant38K$0.00$0338K
2026-01-01Taitel HayaDirectorGrant26K$0.00$091K
2026-01-01Ellis SeanDirectorGrant25K$0.00$0160K
2025-12-29Toledano Miranda JayneChief Executive OfficerBuy11K$1.81$20K427K
2025-07-16Toledano Miranda JayneChief Executive OfficerGrant44K$0.00$0416K
2025-07-16Toledano Miranda JayneChief Executive OfficerGrant137K$0.00$0372K
2025-07-16Yaacov-Garbeli DanaChief Financial OfficerGrant26K$0.00$0113K
2025-07-16Burshtein GregoryChief of R&DGrant26K$0.00$0101K
2025-04-28Galitzer HillelChief Operating OfficerGrant26K$0.00$091K
2025-04-01LIEBERMAN GERALD MDirectorExercise or conversion24K$1.00$24K300K
2025-01-15Ellis SeanDirectorGrant7K$0.00$0135K
2025-01-15LIEBERMAN GERALD MDirectorGrant11K$0.00$0276K
2025-01-15Malca YonatanDirectorGrant8K$0.00$047K
2025-01-15OSTROV GERALD MDirectorGrant8K$0.00$047K
2025-01-15Taitel HayaDirectorGrant7K$0.00$065K
2024-10-02Ellis SeanDirectorGrant7K$0.00$0128K
2024-10-02LIEBERMAN GERALD MDirectorGrant11K$0.00$0265K
2024-10-02Malca YonatanDirectorGrant9K$0.00$039K
2024-10-02OSTROV GERALD MDirectorGrant8K$0.00$039K
2024-10-02Taitel HayaDirectorGrant7K$0.00$058K
2024-08-27LIEBERMAN GERALD MDirectorGrant27K$0.00$0254K
2024-08-27Malca YonatanDirectorGrant23K$0.00$030K
2024-08-27Ellis SeanDirectorGrant18K$0.00$0120K
2024-08-27Taitel HayaDirectorGrant15K$0.00$050K
2024-08-27OSTROV GERALD MDirectorGrant20K$0.00$030K
2024-07-31Toledano Miranda JayneChief Executive OfficerGrant124K$0.00$0235K
2024-04-19Galitzer HillelChief Operating OfficerGrant30K$0.00$064K
2024-04-19Yaacov-Garbeli DanaChief Financial OfficerGrant30K$0.00$087K
2024-01-12Taitel HayaDirectorBuy10K$0.99$9K35K
2024-01-10Taitel HayaDirectorBuy8K$0.77$6K26K
2023-12-22Toledano Miranda JayneChief Executive OfficerBuy24K$0.71$17K111K
2023-12-22LIEBERMAN GERALD MDirectorBuy24K$0.71$17K227K
2023-08-22Taitel HayaDirectorBuy18K$0.62$11K18K
2023-08-21Ellis SeanDirectorBuy40K$0.60$24K102K
2023-08-21LIEBERMAN GERALD MDirectorBuy20K$0.59$12K214K
2023-04-04Toledano Miranda JayneChief Executive OfficerBuy30K$1.01$30K87K
2022-11-14LIEBERMAN GERALD MDirectorBuy4K$0.59$2K6K
2022-11-14LIEBERMAN GERALD MDirectorBuy4K$0.56$2K6K
2022-11-14LIEBERMAN GERALD MDirectorBuy4K$0.56$2K6K
2022-11-14LIEBERMAN GERALD MDirectorBuy34K$0.57$19K194K
2022-11-14LIEBERMAN GERALD MDirectorBuy4K$0.56$2K6K
2022-11-14Yaacov-Garbeli DanaChief Financial OfficerBuy27K$0.54$14K57K
2022-11-11Toledano Miranda JayneChief Executive OfficerBuy50K$0.53$27K57K
2022-11-11Ellis SeanDirectorBuy30K$0.53$16K62K
2022-11-11Yaacov-Garbeli DanaChief Financial OfficerBuy30K$0.52$16K30K
2022-07-21LIEBERMAN GERALD MDirectorBuy19K$1.68$33K160K
2022-07-21Ellis SeanDirectorBuy15K$1.64$24K32K
2022-01-20Schwartz PhillipPresident of R&DBuy10K$2.53$25K607K
2022-01-19Ratan RameshU.S.based CFOBuy10K$2.44$24K10K
2022-01-18LIEBERMAN GERALD MDirectorBuy700$2.81$2K2K
2022-01-18LIEBERMAN GERALD MDirectorBuy700$2.78$2K2K
2022-01-18LIEBERMAN GERALD MDirectorBuy700$2.81$2K2K
2022-01-18Ellis SeanDirectorBuy10K$2.81$28K10K
2022-01-18Mayron RonDirectorBuy7K$2.80$20K7K
2022-01-18LIEBERMAN GERALD MDirectorBuy700$2.78$2K2K
2022-01-18JAMAS SPIROSChief Executive OfficerBuy10K$2.85$29K10K
2022-01-14Toledano Miranda JayneDirectorBuy7K$2.79$19K7K
2022-01-13Malca YonatanDirectorBuy7K$2.74$20K7K
2022-01-13OSTROV GERALD MDirectorBuy10K$2.74$27K10K

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.

Large holders (13D and 13G)

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

17 holders report 5% or more of ENTX in their latest filing, 6 on Schedule 13D (active intent). The largest reported stake is LAMPERT MARK N at 10.0% of the class (17,225,121 shares), filed 2026-08-04 for an event on 2026-07-28.

FiledFormHolderSharesOf classEvent
2026-10-3013GVenrock Healthcare Capital Partners III, L.P.partnership8.9M5.1%2026-10-23
2026-10-3013GVHCP Co-Investment Holdings III, LLCother entity8.9M5.1%2026-10-23
2026-10-3013GVenrock Healthcare Capital Partners EG, L.P.partnership8.9M5.1%2026-10-23
2026-10-3013GVHCP Management III, LLCother entity8.9M5.1%2026-10-23
2026-10-3013GVHCP Management EG, LLCother entity8.9M5.1%2026-10-23
2026-10-3013GNimish Shahindividual8.9M5.1%2026-10-23
2026-10-3013GBong Y. Kohindividual8.9M5.1%2026-10-23
2026-08-0413GVivo Opportunity, LLCother entity11.8M6.9%2026-07-28
2026-08-0413GVivo Opportunity Co-Invest (Cycle 3), L.P.partnership4.8M2.8%2026-07-28
2026-08-0413GVivo Opportunity Fund Holdings, L.P.partnership4.3M2.5%2026-07-28
2026-08-0413GVivo Opportunity Co-Invest, L.P.partnership2.7M1.6%2026-07-28
2026-08-0413GVivo Opportunity Cayman Fund, L.P.partnership438K0.3%2026-07-28
2026-08-0413GVivo Opportunity Cayman, LLCother entity438K0.3%2026-07-28
2026-08-0413GPatrick G. Enrightindividual7.8M4.6%2026-07-28
2026-08-0413GLongitude Capital Partners V, LLCother entity7.8M4.6%2026-07-28
2026-08-0413GLongitude Venture Partners V, L.P.partnership7.8M4.6%2026-07-28
2026-08-0413GJuliet Tammenoms Bakkerindividual7.8M4.6%2026-07-28
2026-08-0413GTCG Crossover GP III, LLCother entity12.3M7.1%2026-07-28
2026-08-0413GTCG Crossover Fund III, L.P.partnership12.3M7.1%2026-07-28
2026-08-0413GChen Yuindividual12.3M7.1%2026-07-28
2026-08-0413GBrian Liuindividual7.1M4.1%2026-07-28
2026-08-0413GSeven Fleet Capital Management LPother entity7.1M4.1%2026-07-28
2026-08-0413GSeven Fleet Capital Management GP LLCother entity7.1M4.1%2026-07-28
2026-08-0413GSeven Fleet Master Fund LPpartnership5.1M3.0%2026-07-28
2026-08-0413GSeven Fleet Horizon Master Fund LPpartnership2.0M1.1%2026-07-28
2026-08-0413DLAMPERT MARK Nindividual17.2M10.0%2026-07-28
2026-08-0413DBVF PARTNERS L P/ILinvestment adviser, partnership17.2M10.0%2026-07-28
2026-08-0413DBVF INC/ILcorporation17.2M10.0%2026-07-28
2026-08-0413DBVF GP HOLDINGS LLCother entity15.9M9.2%2026-07-28
2026-08-0413DBIOTECHNOLOGY VALUE FUND L Ppartnership9.2M5.3%2026-07-28
2026-08-0413DBVF I GP LLCother entity9.2M5.3%2026-07-28
2026-08-0413DBIOTECHNOLOGY VALUE FUND II LPpartnership6.7M3.9%2026-07-28
2026-08-0413DBVF II GP LLCother entity6.7M3.9%2026-07-28
2026-08-0413DBVF Partners OS Ltd.corporation1.1M0.7%2026-07-28
2026-08-0413DBiotechnology Value Trading Fund OS LPpartnership1.1M0.7%2026-07-28
2025-11-1413G/Ano. 1Point72 Asset Management, L.P.partnership1.2M2.6%2025-09-30
2025-11-1413G/Ano. 1Point72 Capital Advisors, Inc.corporation1.2M2.6%2025-09-30
2025-11-1413G/Ano. 1Steven A. Cohenindividual1.2M2.6%2025-09-30

13F holders

Tracked managers holding ENTX at their latest 13F. JSON

2 of the 30 tracked managers held ENTX at their latest 13F, $722K in total at quarter-end prices. Renaissance Technologies is the largest at $653K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 0 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-30369K$653K0.00%-105K
Citadel Advisors2026-06-3039K$69K0.00%-207K

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.

What this page is

Entera Bio 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 Entera Bio (ENTX), SEC CIK 1638097, 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 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 2026-11-02.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.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 2026-10-30.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
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 2026-08-07.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 2026-08-07.JSON and CSV
Company record
EDGAR filing index for CIK 1638097Ticker, 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 ENTX is sold short?
5,548,769 shares were held short at the 2026-10-15 settlement, 7.2 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 ENTX's daily short volume?
On 2026-11-02, 89,319 of the 141,461 ENTX shares reported to FINRA were sold short, 63.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ENTX have fails to deliver?
The SEC's latest file shows 17,878 ENTX shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are ENTX insiders buying or selling?
No open-market insider trades were reported for ENTX in the last 90 days. The most recent filings are listed below. Latest filing: Rubin Steven D (Director) on 2026-08-07.
Who owns 5% or more of ENTX?
17 holders report 5% or more of ENTX in their latest filing, 6 on Schedule 13D (active intent). The largest reported stake is LAMPERT MARK N at 10.0% of the class (17,225,121 shares), filed 2026-08-04 for an event on 2026-07-28.
Which tracked 13F managers own ENTX?
2 of the 30 tracked 13F managers held ENTX shares at their latest filing, $722K in all. The largest: Renaissance Technologies (369K shares, $653K), Ken Griffin's Citadel Advisors (39K shares, $69K).

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