IRISH SIMON enters TERRESTRIAL ENERGY INC. /DE/ with 5.17M shares plus derivative instruments

Holding both equity and derivatives at entry signals strong long-term conviction in the company.

Direct Indirect Derivatives

IRISH SIMON

Filed: 11/7/2025ACC: 0001104659-25-108622

InsiderIRISH SIMONCIK 2091865

→

IssuerTERRESTRIAL ENERGY INC. /DE/CIK 2019804

DirectorOfficer· Chief Executive Officer

Since Oct 2025

5.17M

Baseline shares

44% direct

2.30M

Direct ownership

1 position

6.52M

Derivative underlying

17 instruments

Security positions

2.87M indirect

Non-Derivative Holdings3

Common Stock

Indirect

Shares owned52.26K

Common Stock

Indirect

Shares owned2.82M

Common Stock, par value $0.0001 per share ("Common Stock")

Direct

Shares owned2.30M

Total

2.30M direct·2.87M indirect5.17M

Security Title	Shares Owned	Ownership Type
Common Stock	52.26K	Indirect
Common Stock	2.82M	Indirect
Common Stock, par value $0.0001 per share ("Common Stock")	2.30M	Direct
Total	5.17M	2.30M direct·2.87M indirect

Derivative Holdings17

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

98.35K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

107.29K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

26.29K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

178.81K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Contingent Value Right

Indirect

Underlying security

Common Stock

Underlying shares

N/A

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

1.02M

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Contingent Value Right

Direct

Underlying security

Common Stock

Underlying shares

N/A

Shares owned

N/A

Exercise price

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2.17M

Shares owned

N/A

Exercise price

0.2013

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

21.91K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

24.14K

Shares owned

N/A

Exercise price

2.0133

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

89.41K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

4.38K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2.28M

Shares owned

N/A

Exercise price

0.2013

Expiration

—

Exercise window

—

Warrants (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

89.41K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

178.81K

Shares owned

N/A

Exercise price

0.2013

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

178.81K

Shares owned

N/A

Exercise price

0.2013

Expiration

—

Exercise window

—

Warrants (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

44.70K

Shares owned

N/A

Exercise price

2.2370

Expiration

—

Exercise window

—

Total

Underlying

6.52M

Owned

0.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	98.35K	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	107.29K	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	26.29K	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	178.81K	N/A
Contingent Value Right Indirect	Common Stock		—	—	N/A	N/A
Restricted Stock Units Direct	Common Stock		—	—	1.02M	N/A
Contingent Value Right Direct	Common Stock		—	—	N/A	N/A
Stock Option (Right to Buy) Direct	Common Stock	0.2013	—	—	2.17M	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	21.91K	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.0133	—	—	24.14K	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	89.41K	N/A
Stock Option (Right to Buy) Direct	Common Stock	2.2370	—	—	4.38K	N/A
Stock Option (Right to Buy) Direct	Common Stock	0.2013	—	—	2.28M	N/A
Warrants (Right to Buy) Indirect	Common Stock	2.2370	—	—	89.41K	N/A
Stock Option (Right to Buy) Direct	Common Stock	0.2013	—	—	178.81K	N/A
Stock Option (Right to Buy) Direct	Common Stock	0.2013	—	—	178.81K	N/A
Warrants (Right to Buy) Direct	Common Stock	2.2370	—	—	44.70K	N/A
Total					6.52M	0.00