What is CLLS's short interest?

488,061 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 198,372 from the previous settlement.

Why is there no percentage for CLLS?

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 CLLS's days to cover?

2.35 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.

CLLS short interest Nasdaq Global Market

Cellectis S.A. American Deposi. 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: 488,061
vs previous settlement: +198,372 (+68.5%)
days to cover: 2.35
Settlement date: 15 Sep 2026

Shares short over time

Days to cover

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

Fails to deliver

The SEC's fails-to-deliver figure for CLLS: 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: 11,022; 14 Sep 2026
Highest in window: 11,022; 14 Sep 2026
Days with a balance: 62
Window: 16 Sep 2025 to 14 Sep 2026

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 11K shares.

History

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

Full reported short interest history
Settlement date	Shares short	Change	Days to cover
15 Sep 2026	488,061	+198,372	2.35
31 Aug 2026	289,689	−11,982	17.47
14 Aug 2026	301,671	+5,757	14.18
31 Jul 2026	295,914	+6,296	22.03
15 Jul 2026	289,618	−32,258	16.80
30 Jun 2026	321,876	−49,394	8.86
15 Jun 2026	371,270	+19,163	6.30
29 May 2026	352,107	+14,663	9.30
15 May 2026	337,444	−26,734	15.30
30 Apr 2026	364,178	−19,169	15.22
15 Apr 2026	383,347	+24,738	7.76
31 Mar 2026	358,609	+7,748	9.40
13 Mar 2026	350,861	−37,676	5.04
27 Feb 2026	388,537	−10,049	19.57
13 Feb 2026	398,586	+2,476	8.93
30 Jan 2026	396,110	−23,068	11.18
15 Jan 2026	419,178	+18,602	7.86
31 Dec 2025	400,576	+117,814	3.61
15 Dec 2025	282,762	−9,636	2.52
28 Nov 2025	292,398	+7,171	1.75
14 Nov 2025	285,227	−2,129	3.05
31 Oct 2025	287,356	+14,309	1.66
15 Oct 2025	273,047	−28,094	1.62
30 Sep 2025	301,141	+44,011	1.95
15 Sep 2025	257,130	+47,547	2.72
29 Aug 2025	209,583	−75,995	3.33
15 Aug 2025	285,578	+106,749	1.53
31 Jul 2025	178,829	−84,261	1.00
15 Jul 2025	263,090	+58,102	1.31
30 Jun 2025	204,988	−8,670	4.42
13 Jun 2025	213,658	+18,323	3.82
30 May 2025	195,335	−24,716	3.77
15 May 2025	220,051	−97,774	4.57
30 Apr 2025	317,825	−22,505	6.68
15 Apr 2025	340,330	−115,540	2.47
31 Mar 2025	455,870	+235,835	2.53
14 Mar 2025	220,035	−17,534	1.00
28 Feb 2025	237,569	+15,345	1.64
14 Feb 2025	222,224	+907	2.31
31 Jan 2025	221,317	+56,121	1.27
15 Jan 2025	165,196	−38,262	1.00
31 Dec 2024	203,458	+76,110	1.28
13 Dec 2024	127,348	−4,050	2.57
29 Nov 2024	131,398	−9,058	1.68
15 Nov 2024	140,456	−15,736	1.36
31 Oct 2024	156,192	−190,567	2.33
15 Oct 2024	346,759	−9,348	12.32
30 Sep 2024	356,107	−7,478	21.87
13 Sep 2024	363,585	−18,800	19.21
30 Aug 2024	382,385	−13,047	12.04
15 Aug 2024	395,432	−45,305	12.18
31 Jul 2024	440,737	−2,366	4.23
15 Jul 2024	443,103	+6,318	13.91
28 Jun 2024	436,785	+18,636	5.36
14 Jun 2024	418,149	−6,014	9.90
31 May 2024	424,163	−85,706	18.59
15 May 2024	509,869	−146,243	4.37
30 Apr 2024	656,112	−16,655	14.60
15 Apr 2024	672,767	−3,710	19.05
28 Mar 2024	676,477	−2,792	28.02
15 Mar 2024	679,269	−48,209	19.25
29 Feb 2024	727,478	−679	11.64
15 Feb 2024	728,157	−6,951	22.67
31 Jan 2024	735,108	−32,150	18.03
12 Jan 2024	767,258	−14,557	12.35
29 Dec 2023	781,815	−59,125	5.28
15 Dec 2023	840,940	−205,229	6.72
30 Nov 2023	1,046,169	−408,850	3.65
15 Nov 2023	1,455,019	+1,092,498	1.00
31 Oct 2023	362,521	−9,874	5.33
13 Oct 2023	372,395	+27,207	3.67
29 Sep 2023	345,188	+24,364	10.59
15 Sep 2023	320,824	−1,464	8.32
31 Aug 2023	322,288	−8,843	11.57
15 Aug 2023	331,131	−12,091	6.58
31 Jul 2023	343,222	+28,789	3.03
14 Jul 2023	314,433	+1,665	8.66
30 Jun 2023	312,768	−4,576	10.07
15 Jun 2023	317,344	+8,130	8.04
31 May 2023	309,214	−8,005	7.01
15 May 2023	317,219	+521	3.53
28 Apr 2023	316,698	−47,123	6.48
14 Apr 2023	363,821	−732	7.45
31 Mar 2023	364,553	−8,503	3.43
15 Mar 2023	373,056	+5,165	5.30
28 Feb 2023	367,891	−25,864	5.45
15 Feb 2023	393,755	+20,163	1.28
31 Jan 2023	373,592	+95,985	3.84
13 Jan 2023	277,607	+65,740	1.40
30 Dec 2022	211,867	−100,522	1.16
15 Dec 2022	312,389	−65,631	3.76
30 Nov 2022	378,020	−148,251	5.31
15 Nov 2022	526,271	−54,088	5.64
31 Oct 2022	580,359	−94,059	7.73
14 Oct 2022	674,418	−48,129	7.63
30 Sep 2022	722,547	−96,826	7.00
15 Sep 2022	819,373	−20,323	12.49
31 Aug 2022	839,696	−20,632	10.93
15 Aug 2022	860,328	−27,013	4.23
29 Jul 2022	887,341	−89,499	11.15
15 Jul 2022	976,840	+9,946	6.29
30 Jun 2022	966,894	−44,356	5.52
15 Jun 2022	1,011,250	−28,801	8.85
31 May 2022	1,040,051	−16,810	8.81
13 May 2022	1,056,861	−154,651	6.89
29 Apr 2022	1,211,512	−394,807	6.98
14 Apr 2022	1,606,319	−108,076	11.38
31 Mar 2022	1,714,395	−80,297	6.66
15 Mar 2022	1,794,692	−156,696	3.86
28 Feb 2022	1,951,388	+311,469	6.07
15 Feb 2022	1,639,919	+523,841	6.23
31 Jan 2022	1,116,078	+156,424	3.65
14 Jan 2022	959,654	+229,471	3.34
31 Dec 2021	730,183	+62,911	3.81
15 Dec 2021	667,272	−55,615	3.19
30 Nov 2021	722,887	+109,662	3.54
15 Nov 2021	613,225	+15,464	2.84
29 Oct 2021	597,761	−366,731	4.84
15 Oct 2021	964,492	−286,361	2.12
30 Sep 2021	1,250,853	−20,782	10.91
15 Sep 2021	1,271,635	+23,830	13.07
31 Aug 2021	1,247,805	−49,557	8.59
13 Aug 2021	1,297,362	−114,623	6.30
30 Jul 2021	1,411,985	−650	9.47
15 Jul 2021	1,412,635	+151,218	6.27
30 Jun 2021	1,261,417	+75,150	5.01
15 Jun 2021	1,186,267ʳ	−338,526	4.33
28 May 2021	1,524,793	+40,731	12.07
14 May 2021	1,484,062	+334,069	5.47
30 Apr 2021	1,149,993	−11,423	6.92
15 Apr 2021	1,161,416	−64,537	2.59
31 Mar 2021	1,225,953	+116,785	4.62
15 Mar 2021	1,109,168	+242,370	2.50
26 Feb 2021	866,798	+468,816	2.28
12 Feb 2021	397,982	−40,751	1.00
29 Jan 2021	438,733	−175,491	1.39
15 Jan 2021	614,224	−167,833	1.66
31 Dec 2020	782,057	−96,081	1.38
15 Dec 2020	878,138	−33,097	2.26
30 Nov 2020	911,235	−110,669	6.74
13 Nov 2020	1,021,904	+177,216	5.66
30 Oct 2020	844,688	+121,296	4.56
15 Oct 2020	723,392	+159,178	4.57
30 Sep 2020	564,214	−2,857	3.91
15 Sep 2020	567,071	+26,218	4.15
31 Aug 2020	540,853	+84,045	3.79
14 Aug 2020	456,808	+111,153	3.94
31 Jul 2020	345,655	−228	2.71
15 Jul 2020	345,883	−13,397	2.02
30 Jun 2020	359,280	+102,353	1.82
15 Jun 2020	256,927	−52,230	1.05
29 May 2020	309,157	−26,867	1.20
15 May 2020	336,024	−20,705	2.55
30 Apr 2020	356,729	+91,290	1.94
15 Apr 2020	265,439	+46,547	2.48
31 Mar 2020	218,892	−119,597	1.27
13 Mar 2020	338,489	+18,314	2.61
28 Feb 2020	320,175	+36,857	2.30
14 Feb 2020	283,318	+21,573	3.26
31 Jan 2020	261,745	+34,968	1.89
15 Jan 2020	226,777	−18,340	2.21
31 Dec 2019	245,117	−71,732	1.16
13 Dec 2019	316,849	−18,553	3.66
29 Nov 2019	335,402	+45,374	3.49
15 Nov 2019	290,028	+67,113	2.66
31 Oct 2019	222,915	−8,094	2.30
15 Oct 2019	231,009	+28,185	2.46
30 Sep 2019	202,824	+76,177	1.34
13 Sep 2019	126,647	−6,776	1.21
30 Aug 2019	133,423	−43,909	1.15
15 Aug 2019	177,332	−5,856	1.28
31 Jul 2019	183,188	−60,501	2.65
15 Jul 2019	243,689	−88,256	1.73
28 Jun 2019	331,945	+105,436	2.13
14 Jun 2019	226,509ʳ	+34,062	1.95
31 May 2019	192,447	−65,285	1.77
15 May 2019	257,732	−62,260	3.87
30 Apr 2019	319,992	+16,432	3.45
15 Apr 2019	303,560	−197,127	2.75
29 Mar 2019	500,687	+228,903	2.57
15 Mar 2019	271,784	+60,539	1.62
28 Feb 2019	211,245	−28,355	1.71
15 Feb 2019	239,600	−272,651	3.05
31 Jan 2019	512,251	−70,621	3.42
15 Jan 2019	582,872	−41,586	4.36
31 Dec 2018	624,458	+12,864	3.64
14 Dec 2018	611,594	−161,020	5.22
30 Nov 2018	772,614	+6,471	4.72
15 Nov 2018	766,143	+103,051	5.66
31 Oct 2018	663,092	−49,187	5.05
15 Oct 2018	712,279	+124,194	4.06
28 Sep 2018	588,085	+156,643	3.37
14 Sep 2018	431,442	+39,595	2.49
31 Aug 2018	391,847	−44,245	3.62
15 Aug 2018	436,092	+9,581	3.28
31 Jul 2018	426,511	+33,633	2.64
13 Jul 2018	392,878ʳ	−42,478	3.78
29 Jun 2018	435,356	+94,903	2.46
15 Jun 2018	340,453	+25,425	2.72
31 May 2018	315,028	+102,611	2.30
15 May 2018	212,417	+8,043	1.33
30 Apr 2018	204,374	−87,348	1.08
13 Apr 2018	291,722	−2,537	1.00
29 Mar 2018	294,259	−75,769	1.51
15 Mar 2018	370,028	+85,562	1.88
28 Feb 2018	284,466	−100,911	2.51
15 Feb 2018	385,377	−13,191	2.46
31 Jan 2018	398,568	−461,834	1.35
12 Jan 2018	860,402	−45,857	6.60
29 Dec 2017	906,259	–	5.35

Scroll inside the table for earlier settlements, back to 29 Dec 2017.

Questions

Frequently asked questions

What is CLLS's short interest?: 488,061 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 198,372 from the previous settlement.
Why is there no percentage for CLLS?: 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 CLLS's days to cover?: 2.35 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.