Ensysce Biosciences (ENSC)

Ensysce 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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304K

Short interest

settlement 2026-10-15

1.0

Days to cover

-2.3 days vs prior

22.8%

Short share of volume

2026-11-02

102,019

Fails to deliver

settlement 2026-10-13

Fri 13 Nov

Next earnings

estimated date

$198K

Insider flow, 90 days

1 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 ENSC is 303,956 shares, down 901,868 shares over the last month. Over the last 48 readings it ranged from 22,027 shares (14 March 2025) to 6,354,589 shares (31 October 2024). The latest reading sits at the bottom of that range. At the reported average volume of 805K shares a day that is 1.0 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-10-15	303,956	-71.9%	804,737	1.00
2026-09-30	1,080,946	-10.4%	322,664	3.35
2026-09-15	1,205,824	-15.5%	690,453	1.75
2026-08-31	1,426,883	+25.1%	1,233,043	1.16
2026-08-14	1,140,145	+496.0%	84,955,912	1.00
2026-07-31	191,291	-52.6%	244,582	1.00
2026-07-15	403,334	+121.2%	2,235,751	1.00
2026-06-30	182,353	-49.9%	1,052,907	1.00
2026-06-15	364,278	+619.9%	1,391,722	1.00
2026-05-29	50,601	-93.8%	874,310	1.00
2026-05-15	814,605	+1444.9%	8,665,067	1.00
2026-04-30	52,730	-18.0%	258,654	1.00
2026-04-15	64,295	-67.0%	277,568	1.00
2026-03-31	194,924	+46.7%	1,025,160	1.00
2026-03-13	132,839	-59.3%	2,176,167	1.00
2026-02-27	326,647	+92.9%	35,332,117	1.00
2026-02-13	169,352	-15.8%	1,241,703	1.00
2026-01-30	201,250	-1.9%	114,290	1.76
2026-01-15	205,100	+22.8%	106,376	1.93
2025-12-31	166,971	-25.9%	133,308	1.25
2025-12-15	225,167	+188.9%	659,335	1.00
2025-11-28	77,945	-5.4%	109,929	1.00
2025-11-14	82,402	+15.8%	58,024	1.42
2025-10-31	71,163	-56.4%	96,335	1.00
2025-10-15	163,313	+9.0%	205,999	1.00
2025-09-30	149,830	-37.6%	118,737	1.26
2025-09-15	239,959	-35.9%	62,963	3.81
2025-08-29	374,602	-11.6%	51,628	7.26
2025-08-15	423,548	+212.0%	200,871	2.11
2025-07-31	135,762	-14.8%	1,318,768	1.00
2025-07-15	159,408	-41.6%	106,191	1.50
2025-06-30	272,827	-7.0%	37,019	7.37
2025-06-13	293,215	+199.2%	420,012	1.00
2025-05-30	98,004	-71.5%	92,486	1.06
2025-05-15	344,431	+138.3%	474,623	1.00
2025-04-30	144,542	+7.1%	9,595,625	1.00
2025-04-15	134,943	+329.1%	261,672	1.00
2025-03-31	31,447	+42.8%	21,753	1.45
2025-03-14	22,027	-43.3%	17,362	1.27
2025-02-28	38,811	-0.9%	14,481	2.68
2025-02-14	39,181	+3.6%	29,005	1.35
2025-01-31	37,811	-31.1%	72,618	1.00
2025-01-15	54,879	-35.2%	52,905	1.04
2024-12-31	84,685	+85.9%	210,224	1.00
2024-12-13	45,562	-97.4%	128,794	1.00
2024-11-29	1,729,316	-64.3%	1,903,613	1.00
2024-11-15	4,847,234	-23.7%	32,303,849	1.00
2024-10-31	6,354,589	+5520.4%	109,525,928	1.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of ENSC volume is 22.8%, down 7.4 points over the last five sessions. Over the last 30 readings it ranged from 10.3% (30 September 2026) to 58.0% (6 October 2026). The latest reading is 7.1 points below the 30-session average of 29.9%, on 300K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-11-02	69K	300K	22.8%	7,000
2026-10-30	17K	51K	32.6%	0
2026-10-29	15K	87K	17.3%	0
2026-10-28	16K	35K	46.5%	0
2026-10-27	112K	296K	37.9%	0
2026-10-26	54K	177K	30.2%	0
2026-10-23	14K	109K	13.0%	0
2026-10-22	14K	128K	11.3%	0
2026-10-21	28K	154K	17.9%	0
2026-10-20	19K	134K	14.2%	0
2026-10-19	51K	182K	27.8%	3,048
2026-10-16	88K	356K	24.6%	23,311
2026-10-15	85K	221K	38.4%	404
2026-10-14	74K	199K	37.1%	100
2026-10-13	218K	794K	27.5%	722
2026-10-12	248K	802K	30.9%	14,246
2026-10-09	695K	1.6M	42.5%	3,399
2026-10-08	341K	647K	52.8%	1,468
2026-10-07	58K	133K	43.3%	0
2026-10-06	173K	299K	58.0%	0
2026-10-05	134K	395K	33.9%	4,177
2026-10-02	21K	80K	26.4%	1,501
2026-10-01	30K	73K	40.7%	0
2026-09-30	23K	226K	10.3%	0
2026-09-29	9K	47K	19.7%	100
2026-09-28	45K	141K	31.9%	14,755
2026-09-25	48K	92K	52.3%	495
2026-09-24	60K	180K	33.0%	8,372
2026-09-23	32K	297K	10.9%	0
2026-09-22	14K	111K	12.5%	0

Fails to deliver

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

As of 13 October 2026, the fails-to-deliver balance in ENSC is 102,019 shares, down 9,297 shares over the last settlement date. Over the last 30 readings it ranged from 7 shares (11 September 2026) to 702,928 shares (7 August 2026).

Settlement	Shares failed	Price	Value
2026-10-13	102,019	$0.56	$57K
2026-10-09	111,316	$0.46	$51K
2026-10-08	10,464	$0.43	$4K
2026-10-07	32,204	$0.43	$14K
2026-10-05	5,993	$0.40	$2K
2026-09-30	3,288	$0.42	$1K
2026-09-28	5,021	$0.41	$2K
2026-09-24	286	$0.42	$120
2026-09-23	6,679	$0.43	$3K
2026-09-18	488	$0.45	$220
2026-09-17	148	$0.45	$67
2026-09-16	43	$0.45	$19
2026-09-15	385	$0.48	$185
2026-09-14	17,359	$0.49	$9K
2026-09-11	7	$0.52	$4
2026-09-10	20,295	$0.47	$10K
2026-09-09	3,658	$0.47	$2K
2026-09-08	10,783	$0.46	$5K
2026-09-04	2,258	$0.44	$994
2026-09-03	7,253	$0.44	$3K
2026-09-01	13,279	$0.39	$5K
2026-08-31	12,126	$0.40	$5K
2026-08-25	54,913	$0.36	$20K
2026-08-24	46,725	$0.37	$17K
2026-08-18	356,092	$0.38	$135K
2026-08-17	614,826	$0.40	$246K
2026-08-13	12,997	$0.40	$5K
2026-08-12	8,471	$0.42	$4K
2026-08-10	49,517	$0.52	$26K
2026-08-07	702,928	$0.52	$366K

Insider trades

SEC Form 4, newest first. JSON

Insiders at ENSC reported 1 open-market buy worth $198K in the last 90 days and no open-market sells. Latest filing: GOWER BOB G (Director) on 2026-08-07.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-08-07	GOWER BOB G	Director	Buy	400K	$0.49	$198K	917K
2026-04-23	GOWER BOB G	Director	Buy	509K	$0.48	$246K	517K
2023-03-02	GOWER BOB G	Director	Buy	90K	$0.49	$44K	1.2M
2023-03-01	GOWER BOB G	Director	Buy	270K	$0.48	$130K	1.1M
2023-02-28	GOWER BOB G	Director	Buy	109K	$0.49	$54K	862K
2022-12-09	GOWER BOB G	Director	Buy	357K	$1.40	$500K	753K
2022-05-26	Kirkpatrick Lynn	Chief Executive Officer	Buy	27K	$0.53	$14K	382K
2022-05-25	Kirkpatrick Lynn	Chief Executive Officer	Buy	70K	$0.49	$34K	355K
2021-06-30	Kirkpatrick Lynn	Chief Executive Officer	Grant	285K	price not stated in the filing	not stated	285K
2021-06-30	GOWER BOB G	Director,TenPercentOwner	Grant	7.9M	price not stated in the filing	not stated	7.9M
2021-06-30	Chang William H	Director,TenPercentOwner	Grant	2.2M	price not stated in the filing	not stated	2.2M
2021-06-30	Chang William H	Director,TenPercentOwner	Grant	353K	price not stated in the filing	not stated	353K
2021-06-30	Humphrey David Carl	Chief Financial Officer	Grant	50K	$0.00	$0	50K

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

1 holder reports 5% or more of ENSC in its latest filing, on Schedule 13D (active intent). The holder is Bob Gene Gower at 6.1% of the class (1,206,576 shares), filed 2026-08-18 for an event on 2026-08-07.

Filed	Form	Holder	Shares	Of class	Event
2026-08-18	13D/Ano. 2	Bob Gene Gowerindividual	1.2M	6.1%	2026-08-07

13F holders

Tracked managers holding ENSC at their latest 13F. JSON

1 of the 30 tracked managers held ENSC at their latest 13F, $25K in total at quarter-end prices. Citadel Advisors is the largest at $25K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Citadel Advisors	2026-06-30	86K	$25K	0.00%	+29K

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

Ensysce 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 Ensysce Biosciences (ENSC), SEC CIK 1716947, 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 2026-10-13.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 2026-08-18.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 2026-08-13.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 2026-08-07.JSON and CSV
Company record: EDGAR filing index for CIK 1716947Ticker, 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.

Datasets

Frequently Asked Questions

How much of ENSC is sold short?

303,956 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 ENSC's daily short volume?

On 2026-11-02, 68,524 of the 300,027 ENSC shares reported to FINRA were sold short, 22.8% of the day's reported volume. Short volume is a flow for one day, not a position.

Does ENSC have fails to deliver?

The SEC's latest file shows 102,019 ENSC shares failed to deliver at settlement 2026-10-13. Fails are reported per settlement date and published twice a month with a lag.

Are ENSC insiders buying or selling?

Insiders at ENSC reported 1 open-market buy worth $198K in the last 90 days and no open-market sells. Latest filing: GOWER BOB G (Director) on 2026-08-07.

Who owns 5% or more of ENSC?

Which tracked 13F managers own ENSC?

1 of the 30 tracked 13F managers held ENSC shares at their latest filing, $25K in all. The largest: Ken Griffin's Citadel Advisors (86K shares, $25K).

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

Ensysce Biosciences (ENSC)

Short interest

Daily short volume

Fails to deliver

Insider trades

Large holders (13D and 13G)

13F holders

Ensysce Biosciences in the regulatory record

Source and updates

How to read it

Other company pages

Datasets

Frequently Asked Questions