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EX-99.1

2 d149508dex991.htm

EX-99.1

EX-99.1

Exhibit 99.1

Viridian Therapeutics Reports First Quarter 2026 Financial Results and Highlights Recent Progress

- PDUFA target action date of June 30, 2026 for veligrotug in thyroid eye disease (TED); organization is launch-ready -

- Marketing Authorization Application (MAA) for veligrotug in TED submitted to the European Medicines Agency (EMA) in January 2026 and accepted for review in February 2026 -

- Subcutaneous elegrobart showed positive topline data in REVEAL-1 and REVEAL-2 phase 3 clinical trials in active and chronic TED, respectively; Biologics License Application (BLA) submission anticipated in Q1 2027 with the potential to be the first subcutaneous autoinjector treatment for TED -

- FcRn portfolio on track to share VRDN-006 development plan in 2026, and for VRDN-008 phase 1 healthy volunteer data 2H 2026 -

- Cash, cash equivalents, and short-term investments of $762M as of March 31, 2026 –

WALTHAM, Mass. – (BUSINESS WIRE) – Viridian Therapeutics, Inc. (Nasdaq: VRDN), a biotechnology company focused on discovering, developing, and commercializing potentially best-in-class medicines for autoimmune and rare diseases, today reported recent business highlights and financial results for the first quarter ended March 31, 2026.

“Our team continues its strong execution across our portfolio as we are launch ready ahead of veligrotug’s PDUFA target date. We delivered positive topline data from both of elegrobart’s pivotal REVEAL phase 3 clinical trials, and earlier programs are moving ahead as planned,” said Steve Mahoney, President and Chief Executive Officer of Viridian Therapeutics. “With veligrotug’s PDUFA target date next month, we have hired and deployed our full field teams, readied commercial supply and supply chain infrastructure, and continue to engage physicians, payers, and key opinion leaders. We believe we are well-prepared and well-positioned to deliver a successful launch. With the positive topline data from REVEAL-1 and REVEAL-2, in active and chronic TED, respectively, we believe that subcutaneous elegrobart has the potential to be the simplest and most convenient treatment for TED.”

Recent Business Highlights

TED PORTFOLIO

•

Veligrotug: PDUFA target action date of June 30, 2026; ready to launch

•

The veligrotug BLA is under Priority Review at the U.S. Food and Drug Administration (FDA) with a Prescription Drug User Fee Act (PDUFA) target action date of June 30, 2026. Veligrotug received Breakthrough Therapy Designation and Priority Review from the FDA in 2025.

•

Field team hiring, including sales, market access, and patient services, are complete and ready for launch. Commercial supply and manufacturing, distribution, and supply chain infrastructure are also established and ready for launch.

•

Submitted an MAA to the EMA in January 2026, which was accepted for review in February 2026.

•

Veligrotug was designed to offer a differentiated clinical profile compared to the current approved treatment option. Across pivotal trials in active and chronic TED, following five infusions, veligrotug demonstrated rapid onset of treatment effect, clinically meaningful improvements in proptosis and diplopia, durable responses, and was generally well-tolerated.

•

Elegrobart (VRDN-003): positive pivotal phase 3 data and potential to be first subcutaneous autoinjector treatment in TED

•

Announced positive topline data in both REVEAL-1 and REVEAL-2, elegrobart’s two pivotal phase 3 clinical trials for active and chronic TED, respectively.

•

Elegrobart is the only subcutaneous program to demonstrate positive pivotal phase 3 clinical data in both active and chronic TED.

•

REVEAL-1 in Active TED: met its primary endpoint with a highly

statistically significant treatment effect. Both elegrobart Q4W and Q8W treatment arms showed rapid onset of treatment effect and achieved clinically meaningful 54% and 63% proptosis responder rates, respectively, versus 18% placebo at week 24. The Q4W treatment arm additionally provided meaningful diplopia benefit to patients with active TED.

•

REVEAL-2 in Chronic TED: met its primary endpoint with a highly

statistically significant treatment effect. Both elegrobart Q4W and Q8W treatment arms achieved statistically significant and clinically meaningful 50% and 54% proptosis responder rates, respectively, versus 15% placebo at week 24. The Q4W treatment arm additionally provided meaningful diplopia benefit to patients with chronic TED.

•

Generally Well-Tolerated: Elegrobart was generally well-tolerated in both pivotal clinical trials, with

low rates of hearing impairment.

•

Viridian plans to submit a BLA to the FDA in Q1 2027 and seek approval for both Q4W and Q8W elegrobart dosing regimens. Viridian plans to launch elegrobart as the first simple and convenient autoinjector that patients can administer at home.

•

Viridian anticipates that the veligrotug commercial and medical affairs infrastructure w

8-K

Viridian Therapeutics, Inc.\DE false 0001590750 0001590750 2026-02-26 2026-02-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 26, 2026

VIRIDIAN THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-36483

47-1187261

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

221 Crescent Street, Suite 103A Waltham, MA

02453

(Address of principal executive offices)

(Zip Code) Registrant’s telephone number, including area code: (617) 272-4600 N/A (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, $0.01 par value

VRDN

The Nasdaq Stock Market LLC Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 - Results of Operations and Financial Condition On February 26, 2026, Viridian Therapeutics, Inc. issued a press release reporting financial results for the fourth quarter and year ended December 31, 2025. The press release is attached hereto as Exhibit 99.1, which is furnished under Item 2.02 of this Current Report on Form 8-K and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Exchange Act or the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing. Item 9.01 - Financial Statements and Exhibits (d) Exhibits.

99.1

Press release, dated February 26, 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Viridian Therapeutics, Inc.

Date: February 26, 2026

By:

/s/ Stephen Mahoney

Stephen Mahoney

President and Chief Executive Officer