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GROSSO CHRISTOPHER G

SEC insider (Form 3/4/5 filer). CIK 0001332430. Director & 10% Owner at RADNOSTIX INC (INIS). 13 reported Form 4/5 transactions since Sep 2024; latest on Oct 10, 2025. Located in IDAHO FALLS, ID.

Companies GROSSO CHRISTOPHER G has filed insider reports for

  • RADNOSTIX INC (INIS): Director, 10% Owner
GROSSO CHRISTOPHER G profile photo

GROSSO CHRISTOPHER G

CIK: 0001332430

Transaction Breakdown

Open Market Buys (P)3 (23.1%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (15.4%)

Compensation grants

Other (G, F, J, C, D, …)8 (61.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

RADNOSTIX INC logo
INIS

RADNOSTIX INC

Director10% Owner

Discretionary Trading P&L

Holdings

Transaction History (13 total)

  • INTERNATIONAL ISOTOPES INC logo
    INIS

    INTERNATIONAL ISOTOPES INC

    Oct 10, 2025
    Award

    Stock Option (Right to Buy)

    Direct
    500K shares-
  • RADNOSTIX INC logo
    INIS

    RADNOSTIX INC

    Feb 17, 2025
    Other
    Indirect
    230.8K shares-
  • RADNOSTIX INC logo
    INIS

    RADNOSTIX INC

    Feb 17, 2025
    Other
    Indirect
    40.4K shares-
  • RADNOSTIX INC logo
    INIS

    RADNOSTIX INC

    Feb 17, 2025
    Other
    Indirect
    40.4K shares-
  • RADNOSTIX INC logo
    INIS

    RADNOSTIX INC

    Feb 17, 2025
    Other
    Direct
    270K shares-
  • INTERNATIONAL ISOTOPES INC logo
    INIS

    INTERNATIONAL ISOTOPES INC

    Nov 14, 2024
    Purchase
    Indirect
    401.1K shares at avg. $0.03$12K
  • INTERNATIONAL ISOTOPES INC logo
    INIS

    INTERNATIONAL ISOTOPES INC

    Oct 30, 2024
    Award

    Stock Option (Right to Buy)

    Direct
    1.5M shares-
  • INTERNATIONAL ISOTOPES INC logo
    INIS

    INTERNATIONAL ISOTOPES INC

    Sep 18, 2024
    Purchase
    Indirect
    300K shares at avg. $0.03$9K
  • INTERNATIONAL ISOTOPES INC logo
    INIS

    INTERNATIONAL ISOTOPES INC

    Sep 18, 2024
    Purchase
    Direct
    500K shares at avg. $0.03$15K
  • INTERNATIONAL ISOTOPES INC logo
    INIS

    INTERNATIONAL ISOTOPES INC

    Feb 17, 2024
    Other
    Indirect
    240K shares-

1-10 of 13