LTBR

SEC source: 0000891839-26-000430 · form4.xml · nonDerivative · entry 1

Goodman Sherri · CIK 0001969973 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,130

F1 · shares: The reported sale of 1,116 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 20, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.26 to $6.31, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000382 · form4.xml · nonDerivative · entry 1

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 57,132

F1 · shares: The reported sale of 717 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

SEC source: 0000891839-26-000378 · form4.xml · nonDerivative · entry 1

GRAE SETH · CIK 0001357549 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 872,084

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000379 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP & Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 457,668

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000377 · form4.xml · nonDerivative · entry 2

Holcombe Scott Randall · CIK 0002146259 · SVP & Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By spouse

Disclosed balance after: 9,153

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000377 · form4.xml · nonDerivative · entry 1

Holcombe Scott Randall · CIK 0002146259 · SVP & Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 312,717

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000376 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 377,688

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000355 · form4.xml · nonDerivative · entry 1

Tobin Mark Robert · CIK 0001641799 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,669

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.925 to $9.05, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000345 · form4.xml · nonDerivative · entry 1

MAGRAW DANIEL B · CIK 0001379756 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,686

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000344 · form4.xml · nonDerivative · entry 1

Tobin Mark Robert · CIK 0001641799 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,669

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000343 · form4.xml · nonDerivative · entry 1

Goodman Sherri · CIK 0001969973 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,246

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000342 · form4.xml · nonDerivative · entry 1

Funches Jesse L. · CIK 0001874150 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,022

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000341 · form4.xml · nonDerivative · entry 1

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,849

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000340 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP & Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 464,485

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000339 · form4.xml · nonDerivative · entry 1

GRAE SETH · CIK 0001357549 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 883,014

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000338 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 384,827

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000337 · form4.xml · nonDerivative · entry 2

Holcombe Scott Randall · CIK 0002146259 · SVP & Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By spouse

Disclosed balance after: 9,256

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000337 · form4.xml · nonDerivative · entry 1

Holcombe Scott Randall · CIK 0002146259 · SVP & Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 316,447

F1 · kind: Represents a grant of restricted stock awards (RSAs). These RSAs vest in six equal semi-annual installments over a three-year period, starting on the first semi-annual anniversary of the grant date, contingent on the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000285 · form4.xml · nonDerivative · entry 1

Goodman Sherri · CIK 0001969973 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 60,246

F1 · shares: The reported sale of 1,116 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 20, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.24 to $9.31, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000293 · form4.xml · nonDerivative · entry 1

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 47,849

F1 · shares: The reported sale of 1,143 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.24 to $9.31, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000256 · form4.xml · nonDerivative · entry 1

Goodman Sherri · CIK 0001969973 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 61,362

F1 · shares: The reported sale of 1,116 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 20, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.56 to $9.68, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000141 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319,827

F1 · shares: Shares withheld to cover taxes upon the vesting of performance-based restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000139 · form4.xml · nonDerivative · entry 1

GRAE SETH · CIK 0001357549 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 778,014

F1 · shares: Shares withheld to cover taxes upon the vesting of performance-based restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000140 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 380,485

F1 · shares: Shares withheld to cover taxes upon the vesting of performance-based restricted stock awards. No shares were sold.

SEC source: 0000891839-26-000042 · form4.xml · nonDerivative · entry 3

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 389,082

F1 · shares: The reported sale of an aggregate of 30,289 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 30, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.9076 to $16.1108, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000042 · form4.xml · nonDerivative · entry 2

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 391,909

F1 · shares: The reported sale of an aggregate of 30,289 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 30, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.12 to $17.115, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000042 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 416,838

F1 · shares: The reported sale of an aggregate of 30,289 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 30, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.13 to $18.12, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000037 · form4.xml · nonDerivative · entry 2

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 328,840

F1 · shares: The reported sales of an aggregate of 8,869 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.30, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000037 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 335,190

F1 · shares: The reported sales of an aggregate of 8,869 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.0012. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000032 · form4.xml · nonDerivative · entry 1

Funches Jesse L. · CIK 0001874150 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,022

F1 · shares: The reported sale of 1,449 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.91 to $17.01, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000020 · form4.xml · nonDerivative · entry 1

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 48,992

F1 · shares: The reported sale of 1,245 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.65 to $15.7012, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-26-000015 · form4.xml · nonDerivative · entry 2

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,237

F2 · kind: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

F2 · price: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000015 · form4.xml · nonDerivative · entry 1

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,606

F1 · shares: The reported sale of 1,947 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2025.

SEC source: 0000891839-26-000014 · form4.xml · nonDerivative · entry 1

Tobin Mark Robert · CIK 0001641799 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,669

F1 · kind: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

F1 · price: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000013 · form4.xml · nonDerivative · entry 1

MAGRAW DANIEL B · CIK 0001379756 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,686

F1 · kind: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

F1 · price: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000012 · form4.xml · nonDerivative · entry 1

Goodman Sherri · CIK 0001969973 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,478

F1 · kind: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

F1 · price: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

SEC source: 0000891839-26-000011 · form4.xml · nonDerivative · entry 1

Funches Jesse L. · CIK 0001874150 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,471

F1 · kind: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

F1 · price: Represents an equity grant, which vests equally in four installments on March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, subject to the reporting person's continued service on each such vesting date.

SEC source: 0000891839-25-000187 · form4.xml · nonDerivative · entry 2

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 337,709

F2 · shares: The reported sale of 5,451 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.

SEC source: 0000891839-25-000187 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 343,160

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-25-000186 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 419,371

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-25-000182 · form4.xml · nonDerivative · entry 1

GRAE SETH · CIK 0001357549 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 791,270

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-25-000170 · form4.xml · nonDerivative · entry 2

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 351,647

F2 · shares: The reported sale of 8,030 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.39 to $17.905, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-25-000170 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 359,677

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-25-000168 · form4.xml · nonDerivative · entry 1

GRAE SETH · CIK 0001357549 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 804,263

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-25-000169 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 427,475

F1 · shares: Shares withheld to cover taxes upon vesting of restricted stock awards. No shares were sold.

SEC source: 0000891839-25-000157 · form4.xml · nonDerivative · entry 1

MUSHAKOV ANDREY · CIK 0001371007 · EVP, Nuclear Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 439,411

F1 · kind: Represents a grant of restricted stock awards. The restricted stock awards will vest in three equal parts, beginning on the first anniversary of the date of grant, over the next three years.

F1 · price: Represents a grant of restricted stock awards. The restricted stock awards will vest in three equal parts, beginning on the first anniversary of the date of grant, over the next three years.

SEC source: 0000891839-25-000155 · form4.xml · nonDerivative · entry 1

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 372,177

F1 · kind: Represents a grant of restricted stock awards. The restricted stock awards will vest in three equal parts, beginning on the first anniversary of the date of grant, over the next three years.

F1 · price: Represents a grant of restricted stock awards. The restricted stock awards will vest in three equal parts, beginning on the first anniversary of the date of grant, over the next three years.

SEC source: 0000891839-25-000156 · form4.xml · nonDerivative · entry 1

Chakraborty Sweta · CIK 0001885308 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,553

F1 · shares: The reported sale of 1,948 shares of common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.30 to $15.815, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000891839-25-000154 · form4.xml · nonDerivative · entry 1

GRAE SETH · CIK 0001357549 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 823,400

F1 · kind: Represents a grant of restricted stock awards. The restricted stock awards will vest in three equal parts, beginning on the first anniversary of the date of grant, over the next three years.

F1 · price: Represents a grant of restricted stock awards. The restricted stock awards will vest in three equal parts, beginning on the first anniversary of the date of grant, over the next three years.

SEC source: 0000891839-25-000143 · form4.xml · nonDerivative · entry 2

GOLDMAN LARRY · CIK 0001305758 · CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 325,511

F2 · shares: The reported sale of 4,527 shares of common stock were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.12 to $15.315, inclusive. The reporting person undertakes to provide to Lightbridge Corporation, any security holder of Lightbridge Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.