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Revelation Biosciences (REVB)

Revelation Biosciences on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq.

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7K

Short interest

settlement 2026-10-15

1.0

Days to cover

unchanged vs prior

44.1%

Short share of volume

2026-11-02

5,450

Fails to deliver

settlement 2026-10-08

Thu 5 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 REVB is 6,605 shares, up 6,349 shares over the last month. Over the last 48 readings it ranged from 256 shares (15 September 2026) to 733,791 shares (15 January 2025). The latest reading sits at the bottom of that range. At the reported average volume of 41K shares a day that is 1.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-156,605+317.8%41,1231.00
2026-09-301,581+517.6%36,2201.00
2026-09-15256-56.0%14,8331.00
2026-08-31582-96.2%61,7631.00
2026-08-1415,394-25.7%21,1461.00
2026-07-3120,729+2.6%40,9341.00
2026-07-1520,200+44.9%58,1661.00
2026-06-3013,941-25.2%38,8681.00
2026-06-1518,630-29.0%50,5991.00
2026-05-2926,240-24.0%33,0451.00
2026-05-1534,510+87.5%81,1971.00
2026-04-3018,409-18.2%89,4431.00
2026-04-1522,511-59.0%66,2781.00
2026-03-3154,960+108.1%75,3631.00
2026-03-1326,405+102.6%79,9121.00
2026-02-2713,032-87.0%107,6561.00
2026-02-13100,079-61.2%372,1761.00
2026-01-30258,211+845.6%3,296,0841.00
2026-01-1527,307-25.6%95,9301.00
2025-12-3136,688+25.9%94,3551.00
2025-12-1529,141+183.7%122,9401.00
2025-11-2810,272+413.3%101,3821.00
2025-11-142,001-93.2%147,6051.00
2025-10-3129,563-61.7%113,1661.00
2025-10-1577,245+15.7%247,3861.00
2025-09-3066,774-37.7%278,8811.00
2025-09-15107,169-53.4%1,632,0091.00
2025-08-29229,818-5.6%92,9732.47
2025-08-15243,563-8.5%83,7512.91
2025-07-31266,190+27.0%293,1761.00
2025-07-15209,553+210.2%296,0221.00
2025-06-3067,566-55.8%442,7941.00
2025-06-13152,953+10.9%5,438,6041.00
2025-05-30137,880+230.1%397,0701.00
2025-05-1541,764-40.0%31,4921.33
2025-04-3069,578-41.3%55,4391.26
2025-04-15118,470+130.8%223,8751.00
2025-03-3151,318+118.6%228,4101.00
2025-03-1423,472-62.0%45,7951.00
2025-02-2861,699-31.1%84,5371.00
2025-02-1489,491+41.1%93,0261.00
2025-01-3163,430-91.4%231,6941.00
2025-01-15733,791+205.3%12,952,1401.00
2024-12-31240,363+450.3%1,606,9701.00
2024-12-1343,682-65.3%3,196,5411.00
2024-11-29125,777-70.7%127,6801.00
2024-11-15428,599+939.1%2,359,2511.00
2024-10-3141,245+81.3%65,7031.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of REVB volume is 44.1%, up 18.4 points over the last five sessions. Over the last 30 readings it ranged from 8.9% (30 September 2026) to 62.7% (20 October 2026). The latest reading is 13.2 points above the 30-session average of 30.9%, on 4K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-022K4K44.1%0
2026-10-309K15K62.0%0
2026-10-293253K11.3%0
2026-10-282K7K34.0%0
2026-10-274K9K46.5%2,336
2026-10-262K7K25.6%384
2026-10-237K12K58.2%0
2026-10-229K24K38.0%0
2026-10-213K12K27.5%0
2026-10-2058K93K62.7%0
2026-10-1957K221K25.7%18,590
2026-10-1692K358K25.6%41,131
2026-10-154K16K22.6%0
2026-10-144K14K26.0%0
2026-10-139K14K60.0%0
2026-10-122K7K31.6%0
2026-10-093K20K13.7%0
2026-10-0815K56K25.9%0
2026-10-0716K39K42.5%0
2026-10-061K13K10.2%0
2026-10-0525K73K34.2%0
2026-10-023K21K12.2%0
2026-10-014K26K15.5%0
2026-09-302K19K8.9%0
2026-09-297K28K26.2%0
2026-09-282K16K9.7%0
2026-09-2515K28K55.1%0
2026-09-2416K50K32.6%0
2026-09-234K45K9.2%0
2026-09-225K17K28.6%0

Fails to deliver

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

As of 8 October 2026, the fails-to-deliver balance in REVB is 5,450 shares, up 2,354 shares over the last settlement date. Over the last 30 readings it ranged from 5 shares (17 July 2026) to 12,846 shares (16 July 2026).

SettlementShares failedPriceValue
2026-10-085,450$0.82$4K
2026-09-283,096$0.89$3K
2026-09-22718$0.98$704
2026-09-213,133$0.93$3K
2026-09-171,637$0.92$2K
2026-08-05287$1.13$324
2026-07-315,272$1.00$5K
2026-07-175$1.13$6
2026-07-1612,846$1.09$14K
2026-07-152,334$1.04$2K
2026-07-143,089$0.99$3K
2026-07-102,054$0.99$2K
2026-07-068,334$1.08$9K
2026-07-01309$1.03$318
2026-06-30976$1.04$1K
2026-06-29247$0.98$242
2026-06-24100$1.05$105
2026-06-185,360$1.07$6K
2026-06-10194$1.04$202
2026-06-01130$1.10$143
2026-05-19152$1.03$157
2026-05-14263$1.03$271
2026-05-13479$1.04$498
2026-05-07211$1.02$215
2026-05-06392$1.07$419
2026-05-042,352$1.12$3K
2026-05-012,168$1.13$2K
2026-04-301,147$1.15$1K
2026-04-23734$1.16$851
2026-04-212,721$1.16$3K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for REVB in the last 90 days. The most recent filings are listed below. Latest filing: Zygmont Chester Stanley III (Chief Financial Officer) on 2026-08-17.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-17Zygmont Chester Stanley IIIChief Financial OfficerGift208K$0.00$0300K
2026-08-17Zygmont Chester Stanley IIIChief Financial OfficerGift208K$0.00$00
2026-08-17Zygmont Chester Stanley IIIChief Financial OfficerGrant208K$0.00$0208K
2026-08-17Rolke JamesChief Executive OfficerGrant208K$0.00$0423K
2026-08-17ROPER JESSDirectorGrant32K$0.00$045K
2026-08-17Chawla Lakhmir SDirectorGrant32K$0.00$044K
2026-08-17CARVER JENNIFERDirectorGrant32K$0.00$045K
2026-04-30Rolke JamesChief Executive OfficerTax withholding10K$1.13$11K215K
2026-04-30Zygmont Chester Stanley IIIChief Financial OfficerTax withholding13K$1.10$15K92K
2026-02-04Zygmont Chester Stanley IIIChief Financial OfficerTax withholding13K$1.65$22K105K
2026-02-03ROPER JESSDirectorTax withholding2K$1.85$3K13K
2026-02-03Rolke JamesChief Executive OfficerTax withholding9K$1.86$16K225K
2026-02-03Chawla Lakhmir SDirectorTax withholding2K$1.85$4K12K
2026-02-03CARVER JENNIFERDirectorTax withholding2K$1.87$3K13K
2026-01-08Rolke JamesChief Executive OfficerGrant533K$0.90$480K933K
2026-01-08Zygmont Chester Stanley IIIChief Financial OfficerGrant78K$0.90$70K474K
2026-01-08ROPER JESSDirectorGrant42K$0.90$38K58K
2026-01-08Chawla Lakhmir SDirectorGrant42K$0.90$38K58K
2026-01-08CARVER JENNIFERDirectorGrant42K$0.90$38K58K
2025-10-29Rolke JamesChief Executive OfficerGrant391K$1.28$500K401K
2025-10-29Zygmont Chester Stanley IIIChief Financial OfficerGrant391K$1.28$500K396K
2025-10-29ROPER JESSDirectorGrant16K$1.28$20K16K
2025-10-29Chawla Lakhmir SDirectorGrant16K$1.28$20K16K
2025-10-29CARVER JENNIFERDirectorGrant16K$1.28$20K16K
2025-02-11TIDMARSH GEORGE FDirectorGrant181$3.87$700268
2025-02-11Zygmont Chester Stanley IIIChief Financial OfficerGrant15K$3.87$58K15K
2025-02-11Rolke JamesChief Executive OfficerGrant30K$3.87$116K30K
2025-02-11ROPER JESSDirectorGrant181$3.87$700183
2025-02-11CARVER JENNIFERDirectorGrant181$3.87$700187
2025-02-11Chawla Lakhmir SDirectorGrant181$3.87$700181
2023-12-08TIDMARSH GEORGE FDirectorSell28K$0.52$14K0
2023-10-16TIDMARSH GEORGE FDirectorSell11K$0.66$7K42K
2023-10-16TIDMARSH GEORGE FDirectorSell2K$0.65$1K28K
2023-09-28TIDMARSH GEORGE FDirectorSell1K$0.69$98642K
2023-09-18TIDMARSH GEORGE FDirectorSell4K$0.74$3K39K
2023-09-15TIDMARSH GEORGE FDirectorSell10K$0.73$7K43K
2023-09-14TIDMARSH GEORGE FDirectorSell12K$0.75$9K53K
2023-04-18TIDMARSH GEORGE FDirectorBuy25K$1.16$29K65K
2023-04-17TIDMARSH GEORGE FDirectorBuy27K$1.16$31K40K
2022-02-25TIDMARSH GEORGE FDirector,TenPercentOwnerBuy20K$1.60$32K467K
2022-02-09TIDMARSH GEORGE FDirector,TenPercentOwnerBuy30K$2.55$77K447K
2022-02-08TIDMARSH GEORGE FDirector,TenPercentOwnerBuy1K$2.54$3K417K
2022-02-07TIDMARSH GEORGE FDirector,TenPercentOwnerBuy42K$2.61$110K1.5M
2022-02-04TIDMARSH GEORGE FDirector,TenPercentOwnerBuy8K$2.31$18K1.5M
2022-02-04TIDMARSH GEORGE FDirector,TenPercentOwnerBuy2K$2.45$5K416K

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

3 holders report 5% or more of REVB in their latest filing, all on Schedule 13G (passive). The largest reported stake is SABBY MANAGEMENT, LLC at 9.6% of the class (605,702 shares), filed 2026-01-20 for an event on 2025-12-31.

FiledFormHolderSharesOf classEvent
2026-08-1413G/Ano. 1Armistice Capital, LLCinvestment adviser, other entity209K5.0%2026-06-30
2026-08-1413G/Ano. 1Steven Boydparent holding company, individual209K5.0%2026-06-30
2026-01-2013GSABBY MANAGEMENT, LLCcorporation606K9.6%2025-12-31
2026-01-2013GHal Mintzindividual606K9.6%2025-12-31
2026-01-2013GSabby Volatility Warrant Master Fund, Ltd.corporation606K9.6%2025-12-31

13F holders

Tracked managers holding REVB at their latest 13F. JSON

1 of the 30 tracked managers held REVB at their latest 13F, $40K in total at quarter-end prices. Citadel Advisors is the largest at $40K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-3039K$40K0.00%new

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

Revelation Biosciences 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 Revelation Biosciences (REVB), SEC CIK 1810560, listed on Nasdaq. 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 2026-10-08.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
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 2026-08-17.JSON and CSV
Company record
EDGAR filing index for CIK 1810560Ticker, 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.

Other company pages

Datasets

Frequently Asked Questions

How much of REVB is sold short?
6,605 shares were held short at the 2026-10-15 settlement, 1.0 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 REVB's daily short volume?
On 2026-11-02, 1,633 of the 3,706 REVB shares reported to FINRA were sold short, 44.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does REVB have fails to deliver?
The SEC's latest file shows 5,450 REVB shares failed to deliver at settlement 2026-10-08. Fails are reported per settlement date and published twice a month with a lag.
Are REVB insiders buying or selling?
No open-market insider trades were reported for REVB in the last 90 days. The most recent filings are listed below. Latest filing: Zygmont Chester Stanley III (Chief Financial Officer) on 2026-08-17.
Who owns 5% or more of REVB?
3 holders report 5% or more of REVB in their latest filing, all on Schedule 13G (passive). The largest reported stake is SABBY MANAGEMENT, LLC at 9.6% of the class (605,702 shares), filed 2026-01-20 for an event on 2025-12-31.
Which tracked 13F managers own REVB?
1 of the 30 tracked 13F managers held REVB shares at their latest filing, $40K in all. The largest: Ken Griffin's Citadel Advisors (39K shares, $40K).

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