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TOVX short interest NYSE American

Theriva Biologics, Inc.. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
1,589,504
vs previous settlement
−174,558 (-9.9%)
days to cover
3.13
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for TOVX shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for TOVX days to cover

Fails to deliver

The SEC's fails-to-deliver figure for TOVX: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
11,462
8 Sep 2026
Highest in window
14,791,391
21 Apr 2026
Days with a balance
150
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Theriva Biologics, Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 15M shares.

History

Every FINRA settlement we hold for TOVX, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,589,504−174,5583.13
31 Aug 20261,764,062+47,0643.05
14 Aug 20261,716,998−398,9263.25
31 Jul 20262,115,924−220,5744.22
15 Jul 20262,336,498+883,8851.00
30 Jun 20261,452,613−1,510,2261.37
15 Jun 20262,962,839+238,9951.00
29 May 20262,723,844−1,336,3361.67
15 May 20264,060,180−4,449,7431.33
30 Apr 20268,509,923+5,965,2171.00
15 Apr 20262,544,706−4,319,1911.00
31 Mar 20266,863,897+1,387,6831.00
13 Mar 20265,476,214−642,0943.54
27 Feb 20266,118,308+483,3001.00
13 Feb 20265,635,008−1,957,8412.98
30 Jan 20267,592,849+1,763,0133.23
15 Jan 20265,829,836−6,339,9461.46
31 Dec 202512,169,782+7,107,9571.00
15 Dec 20255,061,825+2,582,7581.71
28 Nov 20252,479,067+394,5051.05
14 Nov 20252,084,562+98,6681.00
31 Oct 20251,985,894+1,597,9061.00
15 Oct 2025387,988+148,0921.00
30 Sep 2025239,896−91,6561.00
15 Sep 2025331,552−166,6471.00
29 Aug 2025498,199+160,0741.00
15 Aug 2025338,125+246,5021.00
31 Jul 202591,623−39,2681.00
15 Jul 2025130,891+35,7071.00
30 Jun 202595,184−154,1671.00
13 Jun 2025249,351+152,4671.00
30 May 202596,884−75,7901.00
15 May 2025172,674+98,7221.00
30 Apr 202573,952−22,6974.50
15 Apr 202596,649+17,6253.41
31 Mar 202579,024+8,8144.56
14 Mar 202570,210−14,2662.22
28 Feb 202584,476−83,0062.32
14 Feb 2025167,482−94,6151.00
31 Jan 2025262,097−41,5862.85
15 Jan 2025303,683+30,2261.00
31 Dec 2024273,457+142,1041.00
13 Dec 2024131,353+52,4441.00
29 Nov 202478,909−24,4131.00
15 Nov 2024103,322+12,3691.00
31 Oct 202490,953+11,9421.00
15 Oct 202479,011−17,8531.00
30 Sep 202496,864+5,8801.00
13 Sep 202490,984−154,1871.00
30 Aug 2024245,171+145,4501.00
15 Aug 202499,721+53,4741.00
31 Jul 202446,247+17,3231.00
15 Jul 202428,924−428,8781.00
28 Jun 2024457,802−126,4503.98
14 Jun 2024584,252−98,9321.95
31 May 2024683,184+275,8781.00
15 May 2024407,306−91,2742.16
30 Apr 2024498,580+103,7971.73
15 Apr 2024394,783−16,22510.35
28 Mar 2024411,008+48,4421.11
15 Mar 2024362,566+14,3807.66
29 Feb 2024348,186+2,4109.06
15 Feb 2024345,776−3,3295.01
31 Jan 2024349,105−15,3685.25
12 Jan 2024364,473+18,6296.15
29 Dec 2023345,844−31,5572.70
15 Dec 2023377,401−7,4939.94
30 Nov 2023384,894+32,9935.68
15 Nov 2023351,901−61,5347.40
31 Oct 2023413,435−14,7618.61
13 Oct 2023428,196+22,61715.84
29 Sep 2023405,579−69,17810.02
15 Sep 2023474,757+35,69613.45
31 Aug 2023439,061+24,3928.15
15 Aug 2023414,669−23,2214.12
31 Jul 2023437,890−46,7934.47
14 Jul 2023484,683−1,573,8401.70
30 Jun 20232,058,523+1,657,0461.00
15 Jun 2023401,477+22,09114.36
31 May 2023379,386−6,12313.40
15 May 2023385,509−4,18317.00
28 Apr 2023389,692+11,23718.73
14 Apr 2023378,455−5,0518.35
31 Mar 2023383,506−1,6799.55
15 Mar 2023385,185−12,87912.72
28 Feb 2023398,064+8,7447.27
15 Feb 2023389,320+20,6253.54
31 Jan 2023368,695−1,1302.75
13 Jan 2023369,825+19,2385.21
30 Dec 2022350,587−1622.83
15 Dec 2022350,749−22,9657.62
30 Nov 2022373,714+13,59610.46
15 Nov 2022360,118−2,8534.19
31 Oct 2022362,971−11,8693.96
14 Oct 2022374,840–9.26

Scroll inside the table for earlier settlements, back to 14 Oct 2022.

Questions

Frequently asked questions

What is TOVX's short interest?
1,589,504 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 174,558 from the previous settlement.
Why is there no percentage for TOVX?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is TOVX's days to cover?
3.13 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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