Viridian Therapeutics, Inc.
Viridian Therapeutics, Inc. (VRDN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · VRDN · as of Sep 30, 2025
Ownership Breakdown
175
Institutional Holders
▲ 1 vs Q2
$2.01B
Total Inst. Value
▲ $689.36M vs Q2
90.00M
Shares Outstanding
freeFloat 81.98%
93.21M
13F Shares Held
▼ 1.35M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
VRDN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC services-medical laboratories | 12.25M | 15.01% | 15.01% | $264.34B | Nov 13, 2025 | ▲ 10.6K |
BLACKROCK, INC. services-medical laboratories | 5.43M | 6.65% | 6.65% | $117.15B | Nov 12, 2025 | ▼ 92.5K |
DEEP TRACK CAPITAL, LP services-medical laboratories | 5.38M | 6.59% | 6.59% | $116.11B | Nov 14, 2025 | — held |
KYNAM CAPITAL MANAGEMENT, LP services-medical laboratories | 4.43M | 5.43% | 5.43% | $95.55B | Nov 14, 2025 | — held |
VANGUARD GROUP INC services-medical laboratories | 4.33M | 5.31% | 5.31% | $93.48B | Nov 7, 2025 | ▼ 176.5K |
VR ADVISER, LLC services-medical laboratories | 3.88M | 4.76% | 4.76% | $83.79B | Nov 14, 2025 | — held |
FAIRMOUNT FUNDS MANAGEMENT LLC services-medical laboratories | 3.46M | 4.24% | 4.24% | $74.66B | Nov 14, 2025 | — held |
COMMODORE CAPITAL LP services-medical laboratories | 3.20M | 3.92% | 3.92% | $69.06B | Nov 14, 2025 | ▼ 1.68M |
TANG CAPITAL MANAGEMENT LLC services-medical laboratories | 2.84M | 3.48% | 3.48% | $61.35B | Nov 14, 2025 | — held |
PARADIGM BIOCAPITAL ADVISORS LP services-medical laboratories | 2.61M | 3.20% | 3.20% | $56.31B | Nov 14, 2025 | ▼ 132.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
17
Increased
+4.09M shares1
New Positions
first time holders20
Decreased
−4.15M shares0
Sold Out
fully exitedNet shares change (top 50)
62.9K
+4.09M / −4.15M
Net new holders
-2
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
VRDN insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Fairmount Funds Management LLC
| May 11, 2026 | Purchase | 1,176,470 | $17.00 | $20.00M | 5.09M | Form 4 ↗ |
Harmon Seth Chief Financial Officer | Mar 3, 2026 | Tax Withhold | 2,031 | $30.19 | $61.3K | 7.8K | Form 4 ↗ |
Beetham Thomas W. Chief Operating Officer | Mar 3, 2026 | Tax Withhold | 3,048 | $30.19 | $92.0K | 13.4K | Form 4 ↗ |
Tousignant Jennifer Chief Legal Officer | Mar 3, 2026 | Tax Withhold | 1,675 | $30.19 | $50.6K | 3.5K | Form 4 ↗ |
Mahoney Stephen F. President and CEO | Mar 3, 2026 | Tax Withhold | 7,408 | $30.19 | $223.6K | 33.3K | Form 4 ↗ |
Tousignant Jennifer Chief Legal Officer | Mar 2, 2026 | Award | 119,300 | $30.25 | $3.61M | 119.3K | Form 4 ↗ |
Tousignant Jennifer Chief Legal Officer | Mar 2, 2026 | Award | 23,850 | — | — | 23.9K | Form 4 ↗ |
Tousignant Jennifer Chief Legal Officer | Mar 3, 2026 | Tax Withhold | 1,724 | $29.32 | $50.5K | 3.4K | Form 4 ↗ |
Harmon Seth Chief Financial Officer | Mar 2, 2026 | Award | 102,850 | $30.25 | $3.11M | 102.8K | Form 4 ↗ |
Harmon Seth Chief Financial Officer | Mar 2, 2026 | Award | 20,550 | — | — | 20.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Viridian Therapeutics, Inc. (VRDN) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 18.02%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Viridian Therapeutics, Inc. is FMR LLC, holding approximately 12.25 million shares — equal to 15.01% of outstanding shares — as of September 30, 2025.
A total of 175 institutional investors currently hold VRDN stock, with a combined institutional value of approximately $2.01 billion as of the most recent 13F filing period.
Frequently asked questions
VRDN ownershipViridian Therapeutics, Inc. (VRDN) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is FMR LLC with a 15.01% stake. Company insiders hold 18.02%. Data sourced from SEC Form 13F as of September 30, 2025.