ONEN

ONE Nuclear Energy Inc.

Nasdaq· CIK 0001846416 Nuclear & Fusion

$1.30 −0.03 (−2.26%)

Oct 26 4:00 PM ET · prev $1.33

Market cap

$141.8M

Micro cap

Next earnings

Nov 9

in 14 days

1 year

−88.0%

from $10.83 · Oct 27

30 days

−39.5%

from $2.15

52-week range

$1.30–11.26

at the low

Avg volume 20D

282.3K

Oct 5 spike 2.59M

Short interest

74.1K

≈0.3% of shares · +100.5%

Days to cover

1.0

at average volume

Insider net

no open-market trades · 12 mo

New fund stakes

Q2 2026 13F · 0 exits

Filing reports

analyzed by SecBot

SecBot read MIXED 4 reports · 90 days

Balance 0 bearish · 0 bullish · 1 mixed · 3 neutral oldest → newest, height = score

Avg score

·High conf. 3/4 ·Next Earnings date, Nov 9, 2026

Strongest MIXED ONE Nuclear Energy Inc. (formerly Hennessy Capital Investment Corp. VII) completed its de-SPAC business…

All reports →

Price

Daily candles with volume. Pins mark insider trades, rating changes, 13F stakes, reports, catalysts and short-interest jumps.

E Sep 24 Trading halt: Halt Resumed: ONEN — trading resumed after LUDP (Volatilit…
E Sep 24 Trading halt: Trading Halt: ONEN — LUDP (Volatility Trading Pause)
R Sep 29 ONE Nuclear Energy Inc. (formerly Hennessy Capital Investment Corp.…
X Sep 30 Short interest jumps 100.5% to 74.1K

Signal stack

Where each data set points today.

InsidersNO TRADES

No open-market buys or sells in 12 months. Recent filings are awards, exercises and tax withholding.
InstitutionsMIXED

Q2 2026: 2 added (0 new), 0 trimmed or exited.
Short sellersBUILDING

Short interest +100.5% to 74.1K shares. 1.0 days to cover, ≈0.3% of shares.
TrendDOWNTREND

77% below its 50-day average. New closing low $1.30 on Oct 26.

Who's buying

13F· Q2 2026

new positions

exits

Fund	Move	Shares	Value
Clear Street Group Inc.	DOUBLED	247,078	$2.6M
Brevan Howard Capital Management LP	DOUBLED	200,000	$2.1M

Quarterly 13F filings are due 45 days after each quarter ends.

Recent activity

The latest filings, insider trades, analyst actions, press and options flow — newest first.

Oct 26, 2026 SEC

🔒 Fresh report (last 24h), subscribers only

Oct 2, 2026 SEC

Darryl Keith Willis filed a Form 3 initial statement of beneficial ownership with the SEC, reporting that he does not…

3 — Impact 2/10

Sep 30, 2026 SEC

New Circle Capital Solutions LP and related entities filed a Schedule 13D disclosing a 4.6% stake in ONE Nuclear…

SC 13D — Impact 4/10

Sep 24, 2026 Trading halt

Halt Resumed: ONEN — trading resumed after LUDP (Volatility Trading Pause)

Halted 2026-09-24T13:37:46.000Z | Resumed 2026-09-24T13:42:46.000Z

Sep 23, 2026 Insider

HENNESSY DANIEL J acquired via exercise 500,000 shares

Director

Sep 23, 2026 Insider

Hennessy Thomas D acquired via exercise 750,000 shares

Sep 23, 2026 Insider

HENNESSY DANIEL J acquired via exercise 5,203,333 shares

Director

Jun 30, 2026 Inst.

Clear Street Group Inc. — DOUBLED

247,078 shares ($2.6M)

Insider ledger

Form 4

open-market buys or sells · 12 mo

Date	Insider	Type	Value
Sep 23, 2026	HENNESSY DANIEL J Director	EXERCISE	500,000 sh
Sep 23, 2026	Hennessy Thomas D	EXERCISE	750,000 sh
Sep 23, 2026	HENNESSY DANIEL J Director	EXERCISE	5,203,333 sh
Sep 23, 2026	Allen Grant R	EXERCISE	25,000 sh
Sep 23, 2026	Bonner Brian	EXERCISE	25,000 sh
Sep 23, 2026	BRUNELLE ANNA S.	EXERCISE	25,000 sh
Sep 23, 2026	HENNESSY DANIEL J Director	EXERCISE	41,666 sh
Sep 23, 2026	Hennessy Thomas D	EXERCISE	5,203,333 sh