XOOMAR

Vir Biotechnology, Inc. (VIR)

Every FINRA and SEC series the site collects for Vir Biotechnology, 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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19.6M

Short interest

settlement 2026-08-14

13.6

Days to cover

+2.9% vs prior

53.2%

Short share of volume

2026-09-11

1,445

Fails to deliver

settlement 2026-08-11

$0

Insider flow, 90 days

0 buys, 0 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 VIR is 19,595,909 shares, up 1,142,935 shares over the last month. Over the last 48 readings it ranged from 5,512,667 shares (15 November 2024) to 19,595,909 shares (14 August 2026). The latest reading sits at the top of that range. At the reported average volume of 1.4M shares a day that is 13.6 days to cover, a crowded short.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-1419,595,909+2.9%1,438,31813.62
2026-07-3119,040,209+3.2%1,556,11912.24
2026-07-1518,452,974-3.9%1,541,74911.97
2026-06-3019,192,724+6.1%3,209,8505.98
2026-06-1518,082,921-1.3%1,515,50611.93
2026-05-2918,316,762+8.8%1,694,46410.81
2026-05-1516,833,002+4.4%1,537,24510.95
2026-04-3016,117,209-4.1%1,655,1879.74
2026-04-1516,811,002-0.2%1,913,2278.79
2026-03-3116,841,179+9.1%2,189,7267.69
2026-03-1315,439,503+12.9%4,205,9023.67
2026-02-2713,677,336+7.0%7,780,2841.76
2026-02-1312,779,376+4.5%1,460,5468.75
2026-01-3012,228,838+1.9%2,026,9166.03
2026-01-1511,995,546+2.1%1,888,2476.35
2025-12-3111,747,085+5.4%1,834,4436.40
2025-12-1511,149,646+0.3%1,969,2635.66
2025-11-2811,110,359+1.1%1,596,7276.96
2025-11-1410,992,709+14.7%1,375,1567.99
2025-10-319,581,029-12.4%1,541,9626.21
2025-10-1510,940,671-0.1%1,419,5507.71
2025-09-3010,948,379-7.6%1,187,2169.22
2025-09-1511,852,892-0.6%1,235,5259.59
2025-08-2911,924,295+3.8%1,848,2016.45

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of VIR volume is 53.2%, down 9.5 points over the last five sessions. Over the last 52 readings it ranged from 21.0% (21 July 2026) to 82.3% (2 September 2026). The latest reading is 8.2 points below the 30-session average of 61.4%, on 881K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-11469K881K53.2%401
2026-09-10477K699K68.2%3,688
2026-09-09590K856K69.0%4,947
2026-09-08454K592K76.7%3,387
2026-09-04266K423K62.9%587
2026-09-03642K1.0M62.7%100
2026-09-021.2M1.5M82.3%343
2026-09-01821K1.1M74.7%200
2026-08-31452K945K47.9%0
2026-08-28436K647K67.4%211
2026-08-27395K655K60.3%0
2026-08-26630K998K63.2%3,683
2026-08-25631K1.2M51.5%0
2026-08-24289K469K61.5%120
2026-08-21521K757K68.8%0
2026-08-20229K363K63.0%52
2026-08-19333K803K41.5%4,125
2026-08-18297K549K54.1%2,130
2026-08-17352K556K63.4%0
2026-08-14222K404K54.9%0
2026-08-13295K526K56.2%20
2026-08-12209K298K70.1%0
2026-08-11298K478K62.4%4,580
2026-08-10258K467K55.4%0
2026-08-07282K518K54.4%1,229
2026-08-06568K885K64.2%384
2026-08-05249K376K66.4%100
2026-08-04279K628K44.4%0
2026-08-03262K401K65.4%4,033
2026-07-31222K402K55.3%0

Fails to deliver

SEC, by settlement date. JSON

As of 11 August 2026, the fails-to-deliver balance in VIR is 1,445 shares, up 1,262 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (18 June 2026) to 81,409 shares (20 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-111,445$8.89$13K
2026-08-06183$9.11$2K
2026-08-0412,632$8.90$112K
2026-07-3122$8.90$196
2026-07-3022$8.64$190
2026-07-2419,975$9.34$187K
2026-07-225,900$9.42$56K
2026-07-2081,409$9.43$768K
2026-07-164$9.61$38
2026-07-09114$10.43$1K
2026-07-07715$10.02$7K
2026-07-021,593$9.56$15K
2026-07-01363$10.19$4K
2026-06-2923,672$10.03$237K
2026-06-243,817$10.16$39K
2026-06-2355,067$9.57$527K
2026-06-2257,296$9.16$525K
2026-06-181$9.30$9
2026-06-15370$8.61$3K
2026-06-0825,698$8.65$222K
2026-06-034,952$8.74$43K
2026-06-024,520$9.03$41K
2026-04-2273$10.83$791
2026-04-201,000$10.75$11K
2026-04-16632$10.46$7K
2026-04-0945,958$9.52$438K
2026-04-071,000$9.06$9K
2026-03-31104$8.46$880
2026-03-30104$8.40$874
2026-03-248$8.84$71

Insider trades

SEC Form 4, newest first, 50 of 73 shown. JSON

No open-market insider trades were reported for VIR 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: MORE ROBERT J on 2026-08-11.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-11MORE ROBERT Jn/aJ8K$0.00$041K
2026-06-09Coughlin Timothyn/aGrant8K$0.00$08K
2026-06-01Sabatini BrentSVP, Chief Accounting OfficerSell379$9.45$4K62K
2026-06-01Napolitano Janetn/aSell3K$9.45$30K21K
2026-05-27Sigal Charles Elliottn/aGrant8K$0.00$040K
2026-05-27Napolitano Janetn/aGrant8K$0.00$024K
2026-05-27MORE ROBERT Jn/aGrant8K$0.00$049K
2026-05-27Hatfield Jeffrey S.n/aGrant8K$0.00$040K
2026-05-27Farid Ramyn/aGrant8K$0.00$032K
2026-05-27BISCHOFBERGER NORBERT Wn/aGrant8K$0.00$021K
2026-05-01SATO VICKI Ln/aSell22K$10.05$221K1.1M
2026-04-29De Backer MariannePresident and CEOJ234K$0.00$0715K
2026-04-06De Backer MariannePresident and CEOSell73K$9.16$664K948K
2026-04-01SATO VICKI Ln/aSell22K$9.07$200K1.1M
2026-03-23Sabatini BrentSVP, Chief Accounting OfficerSell8K$9.12$70K62K
2026-03-20O'Byrne JasonEVP &amp; Chief Financial OfficerJ3K$0.00$0160K
2026-03-02SATO VICKI Ln/aSell200$9.98$2K1.1M
2026-03-02SATO VICKI Ln/aSell22K$9.50$207K1.1M
2026-02-25de Verneuil VaninaEVP, General Counsel, Corp SecSell14K$9.82$135K113K
2026-02-25Eisner MarkEVP and Chief Medical OfficerSell2K$9.82$19K154K
2026-02-24de Verneuil VaninaEVP, General Counsel, Corp SecSell3K$9.53$30K127K
2026-02-24Sabatini BrentSVP, Chief Accounting OfficerSell1K$9.53$14K70K
2026-02-24SATO VICKI Ln/aSell200$10.26$2K1.1M
2026-02-24SATO VICKI Ln/aSell42K$9.75$411K1.1M
2026-02-24SATO VICKI Ln/aOption exercise42K$1.49$63K1.2M
2026-02-24O'Byrne JasonEVP &amp; Chief Financial OfficerSell2K$9.53$16K163K
2026-02-24Eisner MarkEVP and Chief Medical OfficerSell2K$9.53$15K156K
2026-02-24De Backer MarianneChief Executive OfficerSell15K$9.53$141K1.0M
2026-02-23de Verneuil VaninaEVP, General Counsel, Corp SecSell4K$7.45$33K130K
2026-02-23Sabatini BrentSVP, Chief Accounting OfficerSell2K$7.45$14K71K
2026-02-23O'Byrne JasonEVP &amp; Chief Financial OfficerSell2K$7.45$16K164K
2026-02-23Eisner MarkEVP and Chief Medical OfficerSell2K$7.45$16K158K
2026-02-23De Backer MarianneChief Executive OfficerSell19K$7.45$142K1.0M
2026-02-22de Verneuil VaninaEVP, General Counsel, Corp SecGrant55K$0.00$0134K
2026-02-22Sabatini BrentSVP, Chief Accounting OfficerGrant25K$0.00$073K
2026-02-22O'Byrne JasonEVP &amp; Chief Financial OfficerGrant55K$0.00$0166K
2026-02-22Eisner MarkEVP and Chief Medical OfficerGrant55K$0.00$0160K
2026-02-22De Backer MarianneChief Executive OfficerGrant285K$0.00$01.1M
2026-02-13Sabatini BrentSVP, Chief Accounting OfficerSell2K$7.79$12K48K
2026-02-02SATO VICKI Ln/aSell22K$7.71$170K1.1M
2026-01-02SATO VICKI Ln/aSell22K$5.93$130K1.2M
2025-12-01SATO VICKI Ln/aSell22K$6.00$132K1.2M
2025-12-01SVF Endurance (Cayman) Ltdn/aSell192K$5.98$1.1M13.7M
2025-11-28SVF Endurance (Cayman) Ltdn/aSell61K$6.44$396K13.9M
2025-11-26SVF Endurance (Cayman) Ltdn/aSell128K$6.39$818K14.0M
2025-11-25SVF Endurance (Cayman) Ltdn/aSell236K$6.38$1.5M14.1M
2025-11-24SVF Endurance (Cayman) Ltdn/aSell228K$6.15$1.4M14.3M
2025-11-17O'Byrne JasonEVP &amp; Chief Financial OfficerSell7K$5.56$38K111K
2025-11-05de Verneuil VaninaEVP, General Counsel, Corp SecSell2K$5.16$12K78K
2025-11-03de Verneuil VaninaEVP and General CounselSell1K$5.86$8K81K

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

4 Form 144 notices on file for VIR worth $945K at the prices reported; 4 in the last 90 days worth $945K. Latest: O'Byrne Jason filed on 2026-09-09 to sell 28,333 shares ($315K) from 2026-09-09.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-09O'Byrne JasonFormer Officer28K$315K0.017%2026-09-09Fidelity Brokerage Services LLC
2026-08-25O'Byrne JasonFormer Officer23K$243K0.014%2026-08-25Fidelity Brokerage Services LLC
2026-08-24O'Byrne JasonFormer Officer14K$142K0.008%2026-08-24Fidelity Brokerage Services LLC
2026-08-21O'Byrne JasonFormer Officer25K$245K0.015%2026-08-21Fidelity Brokerage Services LLC

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

2 holders above 5% have filed on VIR, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 6.8% of the class (11,554,377 shares), filed 2026-07-31 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-08-0713GSTATE STREET CORPORATIONparent holding company10.0M5.9%2026-06-30
2026-07-3113G/Ano. 1Vanguard Portfolio Managementinvestment adviser11.6M6.8%2026-06-30

13F holders

Tracked managers holding VIR at their latest 13F. JSON

7 of the 30 tracked managers held VIR at their latest 13F, $100.7M in total at quarter-end prices. Point72 Asset Management is the largest at $57.7M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
Point72 Asset Management2026-06-305.7M$57.7M0.06%+3.7M
Two Sigma Investments2026-06-301.1M$11.3M0.01%-329K
Citadel Advisors2026-06-301.0M$10.6M0.00%-1.2M
Renaissance Technologies2026-06-301.0M$10.4M0.01%+256K
AQR Capital Management2026-06-30581K$5.9M0.00%+15K
D. E. Shaw & Co.2026-06-30416K$4.2M0.00%-401K
Millennium Management2026-06-3048K$489K0.00%-1.3M

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) Vir Biotechnology, Inc. reported revenue of $238.9M, up 19582.5% from the same quarter a year earlier, and net income of $80.1M (0.47 diluted EPS). In FY 2025 it generated -$391.8M of operating cash flow.

Cash
$278.7M
Equity
$982.5M
Total assets
$1.21B
Shares outstanding
169,215,958

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$238.9M$80.1M33.5%0.47
Q1 20262026-03-31-$29K-$125.7Mn/a-0.85
Q4 2025derived2025-12-31$64.1Mn/an/an/a
Q3 20252025-09-30$240K-$163.1M-67975.4%-1.17
Q2 20252025-06-30$1.2M-$111.0M-9139.9%-0.80
Q1 20252025-03-31$3.0M-$121.0M-3989.6%-0.88
Q4 2024derived2024-12-31$12.4Mn/an/an/a
Q3 20242024-09-30$2.4M-$213.7M-8979.7%-1.56

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$68.6Mn/a-$391.8M$4.8Mn/an/a
FY 20242024-12-31$74.2Mn/a-$446.4M$7.3Mn/an/a
FY 20232023-12-31$86.2Mn/a-$778.8M$21.6Mn/an/a
FY 20222022-12-31$1.62Bn/a$1.66B$68.0Mn/an/a
FY 20212021-12-31$1.10Bn/a-$47.6M$21.8Mn/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 2026-07-29 from the cover page.

What this page is

Vir Biotechnology, 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 Vir Biotechnology, Inc. (VIR), SEC CIK 1706431, 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 2026-08-11.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 2026-08-07.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 2026-08-11.JSON and CSV
Company record
EDGAR filing index for CIK 1706431Ticker, 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 09:50 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 VIR is sold short?
19,595,909 shares were held short at the 2026-08-14 settlement, 13.6 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 VIR's daily short volume?
On 2026-09-11, 468,717 of the 880,641 VIR shares reported to FINRA were sold short, 53.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does VIR have fails to deliver?
The SEC's latest file shows 1,445 VIR shares failed to deliver at settlement 2026-08-11. Fails are reported per settlement date and published twice a month with a lag.
Are VIR insiders buying or selling?
No open-market insider trades were reported for VIR 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: MORE ROBERT J on 2026-08-11.
Have VIR insiders filed to sell?
4 Form 144 notices on file for VIR worth $945K at the prices reported; 4 in the last 90 days worth $945K. Latest: O'Byrne Jason filed on 2026-09-09 to sell 28,333 shares ($315K) from 2026-09-09.
Who owns more than 5% of VIR?
2 holders above 5% have filed on VIR, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 6.8% of the class (11,554,377 shares), filed 2026-07-31 for an event on 2026-06-30.
What did VIR report last quarter?
In Q2 2026 (quarter ended 2026-06-30) Vir Biotechnology, Inc. reported revenue of $238.9M, up 19582.5% from the same quarter a year earlier, and net income of $80.1M (0.47 diluted EPS). In FY 2025 it generated -$391.8M of operating cash flow.
Which funds hold VIR?
7 of the 30 tracked managers held VIR at their latest 13F, $100.7M in total at quarter-end prices. Point72 Asset Management is the largest at $57.7M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.

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