VIRIDIAN THERAPEUTICS INC VRDN
COM · Common Stock · CUSIP 92790C104
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersWaltham, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($930.4k this quarter). Holder counts are more reliable. Shares outstanding: 103.1m as of 2026-05-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $19.69. Options: 5 managers hold calls ($6.3m notional), 6 hold puts ($10.7m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 105 |
| Q4 2022 | 123 |
| Q1 2023 | 137 |
| Q2 2023 | 130 |
| Q3 2023 | 126 |
| Q4 2023 | 134 |
| Q1 2024 | 138 |
| Q2 2024 | 140 |
| Q3 2024 | 167 |
| Q4 2024 | 181 |
| Q1 2025 | 179 |
| Q2 2025 | 173 |
| Q3 2025 | 170 |
| Q4 2025 | 230 |
| Q1 2026 | 226 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 88 | 44 |
| Q3 2024 | 107 | 56 |
| Q4 2024 | 108 | 66 |
| Q1 2025 | 91 | 79 |
| Q2 2025 | 81 | 93 |
| Q3 2025 | 70 | 82 |
| Q4 2025 | 149 | 60 |
| Q1 2026 | 119 | 115 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $1.8m | $6.0m | 3.29 |
| Q3 2025 | $1.0m | $2.1m | 2.10 |
| Q4 2025 | $1.5m | $728.2k | 0.48 |
| Q1 2026 | $6.3m | $10.7m | 1.71 |
Biggest buyers
| Bellevue Group AG | Added | +2.4m |
| Balyasny Asset Management L.P. | Added | +1.8m |
| Paradigm Biocapital Advisors LP | Added | +1.7m |
| CITADEL ADVISORS LLC | Added | +1.6m |
| BlackRock, Inc. | Added | +1.4m |
| STATE STREET CORP | Added | +1.2m |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +1.1m |
| FMR LLC | Added | +994.9k |
| Kynam Capital Management, LP | Added | +871.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +748.9k |
Biggest sellers
| PERCEPTIVE ADVISORS LLC | Reduced | -1.9m |
| Deep Track Capital, LP | Reduced | -1.1m |
| JENNISON ASSOCIATES LLC | Reduced | -1.1m |
| MARSHALL WACE, LLP | Reduced | -1.1m |
| Eversept Partners, LP | Reduced | -1.1m |
| MORGAN STANLEY | Reduced | -868.1k |
| Vivo Capital, LLC | Reduced | -816.3k |
| 5AM Venture Management, LLC | Sold out | -736.6k |
| Pictet Asset Management Holding SA | Reduced | -608.7k |
| LOOMIS SAYLES & CO L P | Reduced | -553.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.4m174.1k shares |
| J. Goldman & Co LP | New | $1.3m67.5k shares |
| LMR Partners LLP | New | $1.3m65.6k shares |
| SIMPLEX TRADING, LLC | Added | $248.4k12.7k shares |
| GROUP ONE TRADING LLC | Reduced | $3.9k200 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.6m233.3k shares |
| JANE STREET GROUP, LLC | New | $3.0m151.1k shares |
| CITADEL ADVISORS LLC | Added | $1.3m64.7k shares |
| GROUP ONE TRADING LLC | New | $1.2m61.5k shares |
| SIMPLEX TRADING, LLC | New | $637.7k32.6k shares |
| Rosalind Advisors, Inc. | New | $52.7k263.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Fairmount Funds Management LLC
13D · may seek influence
-1.1 pts · filed 2026-05-13
Stated purposeItem 4 is hereby amended and supplemented as follows: Fund II purchased the shares of Common Stock referenced in Item 3 for investment purposes. Full filing |
14.0% |
| Bellevue Group AG 13G · institution new · filed 2026-05-15 | 6.6% |
| Paradigm Biocapital Advisors LP 13G · passive investor +1.0 pts · filed 2026-08-14 | 6.1% |
| Kynam Capital Management, LP 13G · institution +4.2 pts · filed 2026-08-14 | 5.7% |
| STATE STREET CORP 13G · institution new · filed 2026-08-07 | 5.5% |
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution new · filed 2026-08-14 | 5.2% |
| Point72 Asset Management, L.P. 13G · passive investor new · filed 2026-08-20 | 5.0% |
Fell to 5% or below in the last year: Deep Track Capital, LP (3.2%, 2026-08-14), VANGUARD GROUP INC (0.0%, 2026-03-27), Commodore Capital LP (3.9%, 2025-11-14)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 3 | $30.6m | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 1 | $10.0m | 1 | $70.8k | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.02% of their portfolio | 15.4m $300.8m | Added +994.9k |
| BlackRock, Inc. 0.00% of their portfolio | 7.8m $153.2m | Added +1.4m |
| Bellevue Group AG 3.13% of their portfolio | 6.7m $131.6m | Added +2.4m |
| STATE STREET CORP 0.00% of their portfolio | 4.7m $91.4m | Added +1.2m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 4.2m $81.5m | First filing |
| Fairmount Funds Management LLC 5.53% of their portfolio | 3.9m $76.6m | Unchanged |
| Venrock Adviser, LLC 2.83% of their portfolio | 3.9m $75.9m | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 3.2m $62.7m | Reduced -233.4k |
| Paradigm Biocapital Advisors LP 1.26% of their portfolio | 3.1m $61.6m | Added +1.7m |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 3.1m $60.2m | Added +1.1m |
| Kynam Capital Management, LP 2.91% of their portfolio | 2.3m $45.8m | Added +871.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.3m $45.6m | Added +341.0k |
| CITADEL ADVISORS LLC 0.03% of their portfolio | 2.3m $45.3m | Added +1.6m |
| Balyasny Asset Management L.P. 0.09% of their portfolio | 2.3m $45.3m | Added +1.8m |
| NOVO HOLDINGS A/S 3.17% of their portfolio | 2.0m $39.1m | Reduced -380.0k |
| BAKER BROS. ADVISORS LP 0.22% of their portfolio | 2.0m $38.6m | Unchanged |
| TANG CAPITAL MANAGEMENT LLC 1.78% of their portfolio | 1.8m $35.1m | Unchanged |
| Fisher Asset Management, LLC 0.01% of their portfolio | 1.8m $34.6m | Reduced -12.0k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 1.6m $32.1m | First filing |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 1.6m $31.1m | Added +327.9k |
| Avoro Capital Advisors LLC 0.29% of their portfolio | 1.5m $29.3m | Unchanged |
| Deep Track Capital, LP 0.56% of their portfolio | 1.4m $27.3m | Reduced -1.1m |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 1.4m $43.3m | Reduced -22.1k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 1.3m $24.7m | Added +261.8k |
| PERCEPTIVE ADVISORS LLC 0.45% of their portfolio | 1.2m $22.9m | Reduced -1.9m |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 1.2m $22.8m | Added +173.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.1m $19.6m | Added +49.6k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 1.0m $20.2m | Added +552.6k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio | 970.0k $19.0m | Added +180.0k |
| LOOMIS SAYLES & CO L P 0.02% of their portfolio | 927.7k $18.1m | Reduced -553.4k |
| First Turn Management, LLC 1.99% of their portfolio | 911.3k $17.8m | Added +220.8k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.98% of their portfolio | 898.6k $17.6m | Added +14.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 888.3k $17.4m | Added +748.9k |
| MORGAN STANLEY 0.00% of their portfolio | 870.2k $17.0m | Reduced -868.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 727.9k $14.2m | Reduced -21.0k |
| Eversept Partners, LP 0.92% of their portfolio | 713.3k $14.0m | Reduced -1.1m |
| Candriam S.C.A. 0.07% of their portfolio | 711.7k $13.9m | Reduced -73.4k |
| MetLife Investment Management, LLC 0.07% of their portfolio | 708.5k $13.9m | Added +664.5k |
| Woodline Partners LP 0.05% of their portfolio | 700.9k $13.7m | Reduced -415.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 697.0k $13.6m | Added +28.6k |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 669.0k $13.1m | Added +252.6k |
| MPM BIOIMPACT LLC 0.98% of their portfolio | 649.9k $12.7m | New |
| Nuveen, LLC 0.00% of their portfolio | 604.9k $11.8m | Reduced -137.4k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 591.2k $11.6m | First filing |
| ALGERT GLOBAL LLC 0.17% of their portfolio | 564.0k $11.0m | Added +139.0k |
| Parkman Healthcare Partners LLC 1.13% of their portfolio | 557.9k $10.9m | Reduced -230.1k |
| Elmind Capital, LP 2.97% of their portfolio | 534.9k $10.5m | Reduced -323.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 529.8k $10.4m | Reduced -25.8k |
| ExodusPoint Capital Management, LP 0.06% of their portfolio | 330.4k $6.5m | Added +237.7k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 322.8k $6.3m | Added +68.6k |
| Pictet Asset Management Holding SA 0.01% of their portfolio | 314.0k $6.1m | Reduced -608.7k |
| PANAGORA ASSET MANAGEMENT INC 0.02% of their portfolio | 313.7k $6.1m | Reduced -11.0k |
| UBS Group AG 0.00% of their portfolio | 307.1k $6.0m | Added +142.3k |
| ADAR1 Capital Management, LLC 0.36% of their portfolio | 304.4k $6.0m | Added +227.2k |
| Davern Capital Partners, LP 1.62% of their portfolio | 302.5k $5.9m | Added +40.8k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 301.5k $5.9m | Added +181.6k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 293.3k $5.4m | Reduced -10.5k |
| Voleon Capital Management LP 0.11% of their portfolio | 269.7k $5.3m | Reduced -76.0k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 269.6k $5.3m | Reduced -1.1m |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 266.4k $5.2m | Reduced -251.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 262.0k $5.1m | Added +248.3k |
| XTX Topco Ltd 0.09% of their portfolio | 254.0k $5.0m | Added +206.9k |
| Rosalind Advisors, Inc. 2.01% of their portfolio | 250.4k $4.9m | Reduced -199.6k |
| Affinity Asset Advisors, LLC 0.29% of their portfolio | 250.0k $4.9m | Unchanged |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 234.6k $4.6m | Added +41.1k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 231.3k $4.5m | Added +101.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 216.5k $4.2m | Added +659 |
| Propel Bio Management, LLC 2.58% of their portfolio | 210.2k $4.1m | Reduced -72.4k |
| Yiheng Capital Management, L.P. 1.77% of their portfolio | 208.7k $4.1m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 203.1k $4.0m | New |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 188.2k $3.7m | Reduced -38.6k |
| Knott David M Jr 2.11% of their portfolio | 181.0k $3.5m | Added +36.0k |
| Hennion & Walsh Asset Management, Inc. 0.12% of their portfolio | 174.9k $3.4m | Added +5.7k |
| Privium Fund Management B.V. 0.71% of their portfolio | 173.5k $3.4m | Unchanged |
| Vivo Capital, LLC 0.27% of their portfolio | 166.3k $3.3m | Reduced -816.3k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.03% of their portfolio | 158.4k $3.1m | New |
| SEB Asset Management AB 0.01% of their portfolio | 157.0k $3.1m | First filing |
| Invesco Ltd. 0.00% of their portfolio | 152.6k $3.0m | Reduced -30.9k |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 142.0k $2.8m | Added +42.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 140.6k $2.8m | Reduced -319.5k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% of their portfolio | 140.3k $2.7m | Added +139.4k |
| HighVista Strategies LLC 0.72% of their portfolio | 134.2k $2.6m | Reduced -238.2k |
| Swiss National Bank 0.00% of their portfolio | 128.6k $2.5m | Unchanged |
| KVP Capital Advisors, LP 1.83% of their portfolio | 125.0k $2.4m | New |
| Nicholas Investment Partners, LP 0.18% of their portfolio | 124.3k $2.4m | Added +57.2k |
| BARCLAYS PLC 0.00% of their portfolio | 100.6k $2.0m | Reduced -143.7k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 100.0k $2.0m | Added +2.6k |
| Moody Aldrich Partners LLC 0.34% of their portfolio | 95.2k $1.9m | Reduced -952 |
| Merck & Co., Inc. 0.56% of their portfolio | 93.4k $1.8m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 93.2k $1.8m | Reduced -54.1k |
| Velan Capital Investment Management LP 1.12% of their portfolio | 91.1k $1.8m | Added +4.6k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.00% of their portfolio | 85.4k $1.7m | Reduced -69.3k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 81.4k $1.6m | Reduced -31.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 81.0k $1.6m | Added +17.7k |
| TWINBEECH CAPITAL LP 0.16% of their portfolio | 76.9k $1.5m | Added +29.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 75.2k $1.5m | Reduced -100.7k |
| J. Safra Sarasin Holding AG 0.02% of their portfolio | 73.1k $1.4m | Reduced -15.2k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 70.2k $1.4m | Added +2.5k |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. 0.05% of their portfolio | 69.5k $1.4m | Added +6.8k |
| Aquatic Capital Management LLC 0.04% of their portfolio | 68.5k $1.3m | Added +44.0k |