VRDN · Viridian Therapeutics, Inc.\DE

The option vests in full upon the earlier to occur of (i) July 1, 2027 or (ii) the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2027 or (ii) the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2027 or (ii) the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2027 or (ii) the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

The option vests in full upon the earlier to occur of (i) July 1, 2027 or (ii) the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

The option vests in full upon the earlier to occur of (i) July 1, 2027 or (ii) the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

Fairmount Funds Management LLC ("Fairmount") and Fairmount Healthcare Fund II GP LLC ("Fairmount GP II") have voting power and investment power over the securities held by Fairmount Healthcare Fund II LP ("Fund II"). They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

This amendment corrects the number of shares and price sold to cover taxes on the initial Form 4 filed on March 4, 2026, as well as the resulting total number of shares beneficially owned following all transactions reported in the initial Form 4.

This amendment corrects the number of shares and price sold to cover taxes on the initial Form 4 filed on March 4, 2026, as well as the resulting total number of shares beneficially owned following all transactions reported in the initial Form 4.

This amendment corrects the number of shares and price sold to cover taxes on the initial Form 4 filed on March 4, 2026, as well as the resulting total number of shares beneficially owned following all transactions reported in the initial Form 4.

This amendment corrects the number of shares and price sold to cover taxes on the initial Form 4 filed on March 4, 2026, as well as the resulting total number of shares beneficially owned following all transactions reported in the initial Form 4.

Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of common stock of the Issuer.

The RSUs vest over a four year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, March 2, 2026, subject to the Reporting Person's continued service to Issuer through each vesting date.

The option vests and becomes exercisable in 48 equal monthly installments following the date of the grant, subject to the Reporting Person's continued service to Issuer through each vesting date. The date of the grant is March 2, 2026.

Consists of shares purchased under the Issuer's employee stock purchase plan.

Fairmount Funds Management LLC ("Fairmount") and Fairmount Healthcare Fund II GP LLC ("Fairmount GP II") have voting power and investment power over the securities held by Fairmount Healthcare Fund II LP ("Fund II"). They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

The option vests in full upon the earlier to occur of (i) July 1, 2026 or (ii) the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2026 or (ii) the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2026 or (ii) the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2026 or (ii) the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

The option vests in full upon the earlier to occur of (i) July 1, 2026 or (ii) the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests in full upon the earlier to occur of (i) July 1, 2026 or (ii) the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

Fairmount Funds Management LLC ("Fairmount") and Fairmount Healthcare Fund II GP LLC ("Fairmount GP II") have voting power and investment power over the securities held by Fairmount Healthcare Fund II LP ("Fund II"). They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

Under Mr. Harwin's arrangement with Fairmount, Mr. Harwin held options received as director compensation from the Issuer for one or more investment vehicles managed by Fairmount (each, a "Fairmount Fund"). Mr. Harwin is obligated to turn over to Fairmount any net cash or stock received from such options for the benefit of such Fairmount Fund. Mr. Harwin therefore disclaims beneficial ownership of the option and underlying common stock. Fairmount disclaims beneficial ownership of any of the reported securities, except to the extent of its pecuniary interest therein.

Beginning on October 27, 2020, the option vested monthly over a three-year period, subject to Peter Harwin's continued service to the Issuer. Mr. Harwin, a Managing Member of Fairmount and Fairmount GP II, served on the Issuer's Board of Directors through March 10, 2025.

Under Mr. Harwin's arrangement with Fairmount, Mr. Harwin held options received as director compensation from the Issuer for one or more investment vehicles managed by Fairmount (each, a "Fairmount Fund"). Mr. Harwin is obligated to turn over to Fairmount any net cash or stock received from such options for the benefit of such Fairmount Fund. Mr. Harwin therefore disclaims beneficial ownership of the option and underlying common stock. Fairmount disclaims beneficial ownership of any of the reported securities, except to the extent of its pecuniary interest therein.

Fairmount Funds Management LLC ("Fairmount") and Fairmount Healthcare Fund II GP LLC ("Fairmount GP II") have voting power and investment power over the securities held by Fairmount Healthcare Fund II LP ("Fund II"). They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

The option vests and becomes exercisable in 36 equal monthly installments, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

The option vests and becomes exercisable in 36 equal monthly installments, subject to the Reporting Person's continued service on the Board of Directors of the Issuer.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

The option vests as to 25% on March 10, 2026 and then in equal monthly installments over the following 36 months, subject to the Reporting Person's continued service to Issuer through each vesting date.

The option vests and becomes exercisable in 48 equal monthly installments following the date of the grant, subject to the Reporting Person's continued service to Issuer through each vesting date. The date of the grant is March 3, 2025.

Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of common stock of the Issuer.

The RSUs vest over a four year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, March 3, 2025, subject to the Reporting Person's continued service to Issuer through each vesting date.

Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of common stock of the Issuer.

The RSUs vest over a four year period, with 25% of the RSUs vesting on each yearly anniversary of the date of grant, March 3, 2025, subject to the Reporting Person's continued service to Issuer through each vesting date.

The option vests and becomes exercisable in 48 equal monthly installments following the date of the grant, subject to the Reporting Person's continued service to Issuer through each vesting date. The date of the grant is March 3, 2025.

Includes 1,000 shares acquired under Viridian Therapeutics, Inc.'s 2016 Employee Stock Purchase Plan (the "ESPP") on September 19, 2024 in transactions that were exempt under Rule 16b-3(c).

Fairmount Funds Management LLC and Fairmount Healthcare Fund II GP LLC have voting power and investment power over the securities held by Fairmount Healthcare Fund II LP ("Fund II"). They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

The option vests in full upon the earlier to occur of (i) June 26, 2025 or (ii) the Issuer's 2025 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board.

The option vests in full upon the earlier to occur of (i) June 26, 2025 or (ii) the Issuer's 2025 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

The option vests in full upon the earlier to occur of (i) June 26, 2025 or (ii) the Issuer's 2025 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board.

The option vests in full upon the earlier to occur of (i) June 26, 2025 or (ii) the Issuer's 2025 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board.

The option vests in full upon the earlier to occur of (i) June 26, 2025 or (ii) the Issuer's 2025 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board.

Under the Reporting Person's arrangement with Fairmount Funds Management LLC (the "Adviser"), the Reporting Person holds the option for one or more investment vehicles managed by the Adviser (each, a "Fairmount Fund"). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received from the option for the benefit of such Fairmount Fund. The Reporting Person therefore disclaims beneficial ownership of the option and underlying common stock.

Each share of Series A Non-Voting Convertible Preferred Stock is convertible into shares of common stock at any time at the option of the holder thereof, into 66.67 shares of common stock, subject to certain limitations, including that a holder of Series A Non-Voting Convertible Preferred Stock is prohibited from converting shares of Series A Non-Voting Convertible Preferred Stock into shares of common stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own more than 19.99% of the total number of shares of common stock issued and outstanding immediately after giving effect to such conversion.

On March 28, 2024, in connection with the wind down of Fairmount Healthcare Fund LP ("Fund I"), all shares of common stock and Series A Non-Voting Convertible Preferred Stock held by Fund I were transferred to Fairmount Healthcare Fund II LP ("Fund II").

Fairmount Funds Management LLC and Fairmount Healthcare Fund GP LLC have voting power and investment power over the securities held by Fund I. They disclaim beneficial ownership of securities held by Fund I for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

Each share of Series A Non-Voting Convertible Preferred Stock is convertible into shares of common stock at any time at the option of the holder thereof, into 66.67 shares of common stock, subject to certain limitations, including that a holder of Series A Non-Voting Convertible Preferred Stock is prohibited from converting shares of Series A Non-Voting Convertible Preferred Stock into shares of common stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own more than 19.99% of the total number of shares of common stock issued and outstanding immediately after giving effect to such conversion.

On March 28, 2024, in connection with the wind down of Fairmount Healthcare Fund LP ("Fund I"), all shares of common stock and Series A Non-Voting Convertible Preferred Stock held by Fund I were transferred to Fairmount Healthcare Fund II LP ("Fund II").

Fairmount Funds Management LLC and Fairmount Healthcare Fund II GP LLC have voting power and investment power over the securities held by Fund II. They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

On March 28, 2024, in connection with the wind down of Fairmount Healthcare Fund LP ("Fund I"), all shares of common stock and Series A Non-Voting Convertible Preferred Stock held by Fund I were transferred to Fairmount Healthcare Fund II LP ("Fund II").

Fairmount Funds Management LLC and Fairmount Healthcare Fund II GP LLC have voting power and investment power over the securities held by Fund II. They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

On March 28, 2024, in connection with the wind down of Fairmount Healthcare Fund LP ("Fund I"), all shares of common stock and Series A Non-Voting Convertible Preferred Stock held by Fund I were transferred to Fairmount Healthcare Fund II LP ("Fund II").

Fairmount Funds Management LLC and Fairmount Healthcare Fund GP LLC have voting power and investment power over the securities held by Fund I. They disclaim beneficial ownership of securities held by Fund I for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.

The option vests as to 25% on February 12, 2025 and then in equal monthly installments over the following 36 months, subject to the Reporting Person's continued service to Issuer through each vesting date.

The option vests in 48 equal monthly installments, subject to the Reporting Person's continued service to Issuer through each vesting date.

Fairmount Funds Management LLC and Fairmount Healthcare Fund II GP LLC have voting power and investment power over the securities held by Fairmount Healthcare Fund II LP ("Fund II"). They disclaim beneficial ownership of securities held by Fund II for purposes of Rule 16a-1(a)(2), except to the extent of their pecuniary interest therein.