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HowShorted

ATHE short interest Nasdaq Capital Market

Alterity Therapeutics Limited. 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
25,660
vs previous settlement
−5,792 (-18.4%)
days to cover
1.29
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for ATHE 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 ATHE days to cover

Fails to deliver

The SEC's fails-to-deliver figure for ATHE: 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.

Latest balance
5,550
14 Sep 2026
Highest in window
91,425
10 Oct 2025
Days with a balance
60
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Alterity Therapeutics Limited 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 91K shares.

History

Every FINRA settlement we hold for ATHE, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202625,660−5,7921.29
31 Aug 202631,452+6,6891.37
14 Aug 202624,763+3,6693.22
31 Jul 202621,094−16,9431.96
15 Jul 202638,037−9432.12
30 Jun 202638,980−15,0291.17
15 Jun 202654,009+44,7931.00
29 May 20269,216+1,1651.00
15 May 20268,051−5,8441.00
30 Apr 202613,895−5,6561.00
15 Apr 202619,551−4,0042.10
31 Mar 202623,555+13,7171.82
13 Mar 20269,838−9,2171.00
27 Feb 202619,055+7,8062.05
13 Feb 202611,249+9,6341.01
30 Jan 20261,615+1,2801.00
15 Jan 2026335+971.00
31 Dec 2025238−1,8411.00
15 Dec 20252,079−21,6071.00
28 Nov 202523,686−21,9662.39
14 Nov 202545,652−29,5912.94
31 Oct 202575,243−55,0462.76
15 Oct 2025130,289+81,2161.00
30 Sep 202549,073−22,1232.59
15 Sep 202571,196−19,7364.91
29 Aug 202590,932−15,1799.43
15 Aug 2025106,111−34,7734.15
31 Jul 2025140,884−14,1811.00
15 Jul 2025155,065+26,1311.73
30 Jun 2025128,934+12,1473.26
13 Jun 2025116,787−10,9587.27
30 May 2025127,745+3,5155.86
15 May 2025124,230+74,1101.00
30 Apr 202550,120−6,6745.14
15 Apr 202556,794+14,0392.38
31 Mar 202542,755−11,8313.27
14 Mar 202554,586−47,2212.20
28 Feb 2025101,807−57,7032.47
14 Feb 2025159,510−393,9511.35
31 Jan 2025553,461+469,2151.00
15 Jan 202584,246−83,0821.00
31 Dec 2024167,328+18,7832.46
13 Dec 2024148,545+146,5921.11
29 Nov 20241,953−1,7261.00
15 Nov 20243,679+1051.00
31 Oct 20243,574−2,6421.00
15 Oct 20246,216−3,4521.00
30 Sep 20249,668−2,8711.00
13 Sep 202412,539−8,4481.61
30 Aug 202420,987−1,9741.72
15 Aug 202422,961−5,1041.00
31 Jul 202428,065+10,1851.00
15 Jul 202417,880+4,5091.95
28 Jun 202413,371−9,1071.00
14 Jun 202422,478+1,6841.71
31 May 202420,794−14,2401.56
15 May 202435,034−50,8591.20
30 Apr 202485,893−4,3891.00
15 Apr 202490,282+67,2271.00
28 Mar 202423,055−3,3341.00
15 Mar 202426,389+8,4651.00
29 Feb 202417,924−19,8221.00
15 Feb 202437,746+7,6271.00
31 Jan 202430,119+13,9121.00
12 Jan 202416,207−54,2731.00
29 Dec 202370,480+13,0721.41
15 Dec 202357,408+6,3651.00
30 Nov 202351,043+44,5961.91
15 Nov 20236,447−8942.66
31 Oct 20237,341−3,4063.39
13 Oct 202310,747−1,6284.71
29 Sep 202312,375−1,8865.28
15 Sep 202314,261−2,46211.24
31 Aug 202316,723−2,4913.15
15 Aug 202319,214+2,2547.06
31 Jul 202316,960+6,0011.92
14 Jul 202310,959+1,4413.79
30 Jun 20239,518−6,8252.64
15 Jun 202316,343+1,0664.71
31 May 202315,277+1533.73
15 May 202315,124+1282.54
28 Apr 202314,996−8,2243.93
14 Apr 202323,220−8,6954.49
31 Mar 202331,915+25,8191.17
15 Mar 20236,096−1,0171.00
28 Feb 20237,113+4001.00
15 Feb 20236,713−1,8681.00
31 Jan 20238,581−4,4861.00
13 Jan 202313,067−105,5581.00
30 Dec 2022118,625−6,8321.00
15 Dec 2022125,457−5,1162.38
30 Nov 2022130,573−23,5092.49
15 Nov 2022154,082−76,0832.24
31 Oct 2022230,165−17,0223.49
14 Oct 2022247,187−5,9804.93
30 Sep 2022253,167−11,5051.03
15 Sep 2022264,672+48,5686.98
31 Aug 2022216,104+46,6071.82
15 Aug 2022169,497−90,7551.90
29 Jul 2022260,252+9972.41
15 Jul 2022259,255+22,8163.97
30 Jun 2022236,439+63,2513.30
15 Jun 2022173,188−74,8222.46
31 May 2022248,010−39,8685.83
13 May 2022287,878−97,8303.44
29 Apr 2022385,708+149,8071.97
14 Apr 2022235,901−19,3234.55
31 Mar 2022255,224+30,9892.68
15 Mar 2022224,235−136,5381.79
28 Feb 2022360,773−107,1573.16
15 Feb 2022467,930−151,2391.92
31 Jan 2022619,169−502,8342.13
14 Jan 20221,122,003+783,7471.00
31 Dec 2021338,256−67,2991.41
15 Dec 2021405,555−191,4532.16
30 Nov 2021597,008−14,8861.81
15 Nov 2021611,894−214,2291.22
29 Oct 2021826,123+132,5961.00
15 Oct 2021693,527−47,1923.27
30 Sep 2021740,719−110,9101.94
15 Sep 2021851,629+9,5732.84
31 Aug 2021842,056−108,5212.20
13 Aug 2021950,577−85,0421.00
30 Jul 20211,035,619−116,2611.00
15 Jul 20211,151,880+599,0681.00
30 Jun 2021552,812−85,5933.47
15 Jun 2021638,405+56,0783.48
28 May 2021582,327−59,8675.76
14 May 2021642,194−253,3153.48
30 Apr 2021895,509+673,8731.00
15 Apr 2021221,636+52,4051.66
31 Mar 2021169,231+25,8441.00
15 Mar 2021143,387+115,3431.00
26 Feb 202128,044−70,6991.00
12 Feb 202198,743+89,4611.00
29 Jan 20219,282−89,8661.00
15 Jan 202199,148+47,2341.00
31 Dec 202051,914−5,7791.00
15 Dec 202057,693−303,1461.00
30 Nov 2020360,839+307,3571.00
13 Nov 202053,482+12,2071.00
30 Oct 202041,275+38,1351.00
15 Oct 20203,140−2,0101.00
30 Sep 20205,150−24,8851.00
15 Sep 202030,035−187,4791.00
31 Aug 2020217,514−87,6191.45
14 Aug 2020305,133+224,9471.00
31 Jul 202080,186−201,9691.00
15 Jul 2020282,155+275,3841.00
30 Jun 20206,771−2,0571.00
15 Jun 20208,828−2,6761.00
29 May 202011,504+7,5001.00
15 May 20204,004+8051.00
30 Apr 20203,199−5461.00
15 Apr 20203,745−31,3001.00
31 Mar 202035,045+23,5471.00
13 Mar 202011,498+4,4891.00
28 Feb 20207,009−9,9441.00
14 Feb 202016,953−1,0221.00
31 Jan 202017,975+12,0481.00
15 Jan 20205,927−6,5201.00
31 Dec 201912,447−16,8961.00
13 Dec 201929,343+4,6211.61
29 Nov 201924,722−70,6051.21
15 Nov 201995,327−46,9605.65
31 Oct 2019142,287+3,21320.03
15 Oct 2019139,074−19,77622.45
30 Sep 2019158,850+10,11218.97
13 Sep 2019148,738−5,34012.91
30 Aug 2019154,078−16,57016.00
15 Aug 2019170,648−16,8995.81
31 Jul 2019187,547+14,8691.92
15 Jul 2019172,678−17,35212.59
28 Jun 2019190,030−3,94718.72
14 Jun 2019193,977+5,90215.16
31 May 2019188,075−2,6819.23
15 May 2019190,756+63,6012.49
30 Apr 2019127,155−9,3251.00
15 Apr 2019136,480–5.29

Scroll inside the table for earlier settlements, back to 15 Apr 2019.

Questions

Frequently asked questions

What is ATHE's short interest?
25,660 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 5,792 from the previous settlement.
Why is there no percentage for ATHE?
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 ATHE's days to cover?
1.29 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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