Skip to content
HowShorted

IMCR short interest Nasdaq Global Market

Immunocore Holdings plc Americ. 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
7,770,242
vs previous settlement
โˆ’22,790 (-0.3%)
days to cover
20.56
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for IMCR: 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
105
3 Sep 2026
Highest in window
170,319
6 Apr 2026
Days with a balance
64
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Immunocore Holdings plc Americ 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 170K shares.

History

Every FINRA settlement we hold for IMCR, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20267,770,242โˆ’22,79020.56
31 Aug 20267,793,032โˆ’102,78320.80
14 Aug 20267,895,815โˆ’322,16218.80
31 Jul 20268,217,977โˆ’722,88417.38
15 Jul 20268,940,861โˆ’51,49012.63
30 Jun 20268,992,351โˆ’47,10612.51
15 Jun 20269,039,457+290,19721.37
29 May 20268,749,260โˆ’221,08519.71
15 May 20268,970,345+78035.40
30 Apr 20268,969,565โˆ’812,38420.81
15 Apr 20269,781,949โˆ’362,85422.57
31 Mar 202610,144,803+7,61926.05
13 Mar 202610,137,184โˆ’1,847,17628.45
27 Feb 202611,984,360+624,32331.43
13 Feb 202611,360,037+428,95029.39
30 Jan 202610,931,087+915,70917.53
15 Jan 202610,015,378+495,28025.46
31 Dec 20259,520,098+467,12936.58
15 Dec 20259,052,969+488,25031.20
28 Nov 20258,564,719โˆ’203,27522.05
14 Nov 20258,767,994+112,94733.90
31 Oct 20258,655,047โˆ’4,87231.74
15 Oct 20258,659,919+300,25823.96
30 Sep 20258,359,661โˆ’334,04926.54
15 Sep 20258,693,710โˆ’36,12829.68
29 Aug 20258,729,838โˆ’81,34533.81
15 Aug 20258,811,183+472,11125.35
31 Jul 20258,339,072โˆ’101,42232.00
15 Jul 20258,440,494โˆ’46,69930.67
30 Jun 20258,487,193+123,46522.30
13 Jun 20258,363,728+353,19914.57
30 May 20258,010,529+59,33514.96
15 May 20257,951,194โˆ’2,67725.26
30 Apr 20257,953,871+272,77129.88
15 Apr 20257,681,100โˆ’394,93717.74
31 Mar 20258,076,037+488,60417.91
14 Mar 20257,587,433+156,34928.39
28 Feb 20257,431,084+13,02228.26
14 Feb 20257,418,062+79,09451.98
31 Jan 20257,338,968+627,02136.30
15 Jan 20256,711,947โˆ’13,73921.56
31 Dec 20246,725,686โˆ’330,78517.17
13 Dec 20247,056,471โˆ’130,87530.34
29 Nov 20247,187,346โˆ’416,28630.08
15 Nov 20247,603,632โˆ’365,81629.62
31 Oct 20247,969,448โˆ’356,22835.41
15 Oct 20248,325,676โˆ’54,49830.29
30 Sep 20248,380,174โˆ’77,33623.23
13 Sep 20248,457,510+1,575,83512.72
30 Aug 20246,881,675+962,47215.11
15 Aug 20245,919,203+488,40417.62
31 Jul 20245,430,799โˆ’355,47817.36
15 Jul 20245,786,277โˆ’87,68314.68
28 Jun 20245,873,960โˆ’334,3177.81
14 Jun 20246,208,277โˆ’469,9215.22
31 May 20246,678,198+1,508,8704.64
15 May 20245,169,328+603,97411.96
30 Apr 20244,565,354+476,49310.23
15 Apr 20244,088,861โˆ’523,7259.64
28 Mar 20244,612,586+321,38913.95
15 Mar 20244,291,197+60,9228.89
29 Feb 20244,230,275+370,15411.40
15 Feb 20243,860,121+655,57610.47
31 Jan 20243,204,545+241,4933.92
12 Jan 20242,963,052+69,0736.40
29 Dec 20232,893,979โˆ’429,9508.79
15 Dec 20233,323,929โˆ’681,9937.98
30 Nov 20234,005,922โˆ’146,16610.52
15 Nov 20234,152,088สณ+459,40212.86
31 Oct 20233,692,686+256,95313.63
13 Oct 20233,435,733+148,69817.75
29 Sep 20233,287,035+112,0869.76
15 Sep 20233,174,949+181,50014.57
31 Aug 20232,993,449+121,76915.80
15 Aug 20232,871,680+222,74111.83
31 Jul 20232,648,939โˆ’134,54317.09
14 Jul 20232,783,482+98316.01
30 Jun 20232,782,499โˆ’120,29214.66
15 Jun 20232,902,791+210,20313.51
31 May 20232,692,588โˆ’140,41811.53
15 May 20232,833,006+360,7619.09
28 Apr 20232,472,245โˆ’42,3288.06
14 Apr 20232,514,573+16,62711.31
31 Mar 20232,497,946+199,57610.78
15 Mar 20232,298,370+205,6959.04
28 Feb 20232,092,675โˆ’1,6409.12
15 Feb 20232,094,315+4,9937.34
31 Jan 20232,089,322+169,8459.17
13 Jan 20231,919,477+539,2964.87
30 Dec 20221,380,181โˆ’548,8594.01
15 Dec 20221,929,040+410,6284.87
30 Nov 20221,518,412โˆ’164,3623.80
15 Nov 20221,682,774โˆ’310,5173.60
31 Oct 20221,993,291โˆ’318,2354.70
14 Oct 20222,311,526+151,71311.72
30 Sep 20222,159,813+474,01611.93
15 Sep 20221,685,797+793,9972.52
31 Aug 2022891,800โˆ’10,6883.59
15 Aug 2022902,488โˆ’169,3744.27
29 Jul 20221,071,862+2,7265.87
15 Jul 20221,069,136+49,5983.26
30 Jun 20221,019,538โˆ’46,7706.01
15 Jun 20221,066,308โˆ’296,5386.68
31 May 20221,362,846+216,8779.44
13 May 20221,145,969+272,1823.85
29 Apr 2022873,787โˆ’5275.94
14 Apr 2022874,314+21,6543.33
31 Mar 2022852,660+32,7015.00
15 Mar 2022819,959+68,0595.51
28 Feb 2022751,900+36,39011.77
15 Feb 2022715,510+281,1576.24
31 Jan 2022434,353+65,1741.46
14 Jan 2022369,179โˆ’19,5072.59
31 Dec 2021388,686+20,0196.89
15 Dec 2021368,667+217,8973.70
30 Nov 2021150,770โˆ’2,0713.26
15 Nov 2021152,841โˆ’32,9732.66
29 Oct 2021185,814+16,3582.67
15 Oct 2021169,456โˆ’170,0213.91
30 Sep 2021339,477+192,8885.41
15 Sep 2021146,589โˆ’21,1022.89
31 Aug 2021167,691โˆ’195,8441.31
13 Aug 2021363,535+1,3525.97
30 Jul 2021362,183+102,4185.43
15 Jul 2021259,765+46,7804.84
30 Jun 2021212,985+44,9873.73
15 Jun 2021167,998สณโˆ’18,1734.10
28 May 2021186,171+3,1945.02
14 May 2021182,977+23,6434.23
30 Apr 2021159,334+6,5932.44
15 Apr 2021152,741+30,8751.72
31 Mar 2021121,866+56,7451.34
15 Mar 202165,121โˆ’7,3941.00
26 Feb 202172,515โˆ’3,1991.00
12 Feb 202175,714โ€“1.00

Scroll inside the table for earlier settlements, back to 12 Feb 2021.

Questions

Frequently asked questions

What is IMCR's short interest?
7,770,242 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 22,790 from the previous settlement.
Why is there no percentage for IMCR?
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 IMCR's days to cover?
20.56 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.

Ranked companies with a percentage: most shorted US stocks. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.