STOCK TITAN

Standard Nuclear (STDN) CEO discloses stock and option holdings

(Neutral)
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Standard Nuclear, Inc. reports the initial beneficial ownership of President and CEO Kurt Amir Terrani. He holds 3,425,000 shares of Class A common stock through a restricted stock award and an incentive stock option covering 1,900,844 Class A shares at an exercise price of $0.60 per share, expiring January 10, 2036.

The option was granted on January 11, 2026 and vests 25% on January 1, 2027, with an additional 1/48th vesting monthly thereafter. An extra 10% of the total option shares vests and becomes exercisable upon the closing of the company’s initial public offering, subject to his continued service.

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Insider Terrani Kurt Amir
Role President and CEO
Type Security Shares Price Value
holding Incentive stock options F2 -- -- --
holding Class A common stock F1 -- -- --
Holdings After Transaction: Incentive stock options — 1,900,844 shares (Direct); Class A common stock — 3,425,000 shares (Direct)
Footnotes (2)
  1. F1. Represents 3,425,000 shares of Class A Common Stock pursuant to a restricted stock award.
  2. F2. Represents a stock option to purchase 1,900,844 shares of Class A Common Stock granted on January 11, 2026 with an exercise price of $0.60 per share, which vests as follows: 25% vests on January 1, 2027, with an additional 1/48th vesting monthly thereafter, and with 10% of the total number of shares subject to the option vesting and becoming exercisable upon the closing of the Issuer's initial public offering, subject to the Reporting Person's continued service.
Restricted Class A shares 3,425,000 shares Direct restricted stock award of Class A common stock held by Kurt Amir Terrani
Option underlying shares 1,900,844 shares Class A common shares subject to incentive stock option granted January 11, 2026
Exercise price $0.60 per share Exercise price of incentive stock option for 1,900,844 Class A shares
Option expiration date January 10, 2036 Expiration date of the incentive stock option reported by Kurt Amir Terrani
Initial vesting tranche 25% Portion of the option that vests on January 1, 2027
IPO-related vesting tranche 10% Portion of total option shares vesting upon closing of the initial public offering
restricted stock award financial
"Represents 3,425,000 shares of Class A Common Stock pursuant to a restricted stock award."
A restricted stock award is company shares given to an employee or executive that cannot be sold or fully owned until certain conditions—like staying with the company for a set time or hitting performance targets—are met. Think of it as a gift that only becomes yours after you fulfill specific obligations; for investors, these awards matter because they can increase the total shares outstanding when they vest, reveal how management is being paid and motivated, and create potential selling pressure when restrictions lift.
incentive stock options financial
"Security title listed as Incentive stock options with underlying Class A common stock."
Incentive stock options are a type of employee stock option that gives eligible workers the right to buy company shares at a fixed price later on, often below future market value. They matter to investors because they align employee incentives with company performance, can dilute existing ownership when exercised, and create potential tax advantages for option holders if certain holding-time rules are met — think of them as a coupon to buy stock at today’s price with extra tax rules attached.
exercise price financial
"granted on January 11, 2026 with an exercise price of $0.60 per share"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
initial public offering financial
"10% of the total number of shares subject to the option vesting upon the closing of the Issuer's initial public offering"
An initial public offering (IPO) is when a private company first sells its shares to the public and becomes a stock-listed company. It matters because it allows the company to raise money from a wide range of investors, helping it grow, while giving early shareholders a way to sell some of their ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider ownership does STDN President and CEO Kurt Amir Terrani report on this Form 3?

Kurt Amir Terrani reports 3,425,000 Class A shares held via a restricted stock award and an incentive stock option for 1,900,844 additional Class A shares. These positions reflect his initial beneficial ownership as a director and President and CEO of Standard Nuclear, Inc.

How many Class A common shares of Standard Nuclear (STDN) are covered by Kurt Terrani’s options?

Terrani holds an incentive stock option covering 1,900,844 shares of Class A common stock. The option was granted on January 11, 2026, has an exercise price of $0.60 per share, and expires on January 10, 2036, subject to the stated vesting schedule.

What are the key terms of Kurt Terrani’s incentive stock options in STDN?

The incentive stock option allows purchase of 1,900,844 Class A shares at an exercise price of $0.60 per share, expiring January 10, 2036. It was granted January 11, 2026 and becomes exercisable over time based on both time-based and IPO-related vesting conditions.

When do Kurt Terrani’s Standard Nuclear (STDN) options vest?

Terrani’s option vests 25% on January 1, 2027, with an additional 1/48th vesting monthly thereafter. A further 10% of the total option shares vests and becomes exercisable upon the closing of Standard Nuclear’s initial public offering, subject to his continued service.

Does this STDN Form 3 show any open-market buying or selling by the CEO?

No. The Form 3 lists holdings only: a restricted stock award and an incentive stock option position. The structured transaction summary shows no buy or sell transactions, only initial reporting of beneficial ownership as of the stated dates.
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Terrani Kurt Amir

(Last)(First)(Middle)
C/O STANDARD NUCLEAR, INC.
200 EUROPIA AVE

(Street)
OAK RIDGE TENNESSEE 37830

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
07/15/2026
3. Issuer Name and Ticker or Trading Symbol
Standard Nuclear, Inc. [ STDN ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President and CEO
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A common stock3,425,000(1)D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Incentive stock options (2)01/10/2036Class A common stock1,900,844$0.6D
Explanation of Responses:
1. Represents 3,425,000 shares of Class A Common Stock pursuant to a restricted stock award.
2. Represents a stock option to purchase 1,900,844 shares of Class A Common Stock granted on January 11, 2026 with an exercise price of $0.60 per share, which vests as follows: 25% vests on January 1, 2027, with an additional 1/48th vesting monthly thereafter, and with 10% of the total number of shares subject to the option vesting and becoming exercisable upon the closing of the Issuer's initial public offering, subject to the Reporting Person's continued service.
Remarks:
/s/ Kurt Terrani07/15/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)