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 ($613.5k this quarter). Holder counts are more reliable. Shares outstanding: 81.7m as of 2025-08-01, 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 ≈ $13.98. Options: 6 managers hold calls ($1.8m notional), 5 hold puts ($6.0m).
Trends to Q2 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 69 | 54 |
| Q4 2023 | 66 | 59 |
| Q1 2024 | 85 | 53 |
| Q2 2024 | 88 | 44 |
| Q3 2024 | 107 | 56 |
| Q4 2024 | 108 | 66 |
| Q1 2025 | 91 | 79 |
| Q2 2025 | 81 | 93 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $13.9m | $12.9m | 0.93 |
| Q4 2024 | $9.8m | $20.4m | 2.09 |
| Q1 2025 | $1.8m | $940.7k | 0.51 |
| Q2 2025 | $1.8m | $6.0m | 3.29 |
Biggest buyers
| BAKER BROS. ADVISORS LP | New | +1.7m |
| Commodore Capital LP | Added | +1.3m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +1.2m |
| ROYAL BANK OF CANADA | Added | +691.6k |
| Paradigm Biocapital Advisors LP | Added | +646.5k |
| CITADEL ADVISORS LLC | Added | +561.0k |
| Eversept Partners, LP | Added | +524.9k |
| DIMENSIONAL FUND ADVISORS LP | New | +485.7k |
| HighVista Strategies LLC | Added | +304.0k |
| Parkman Healthcare Partners LLC | Added | +234.3k |
Biggest sellers
| Driehaus Capital Management LLC | Reduced | -893.6k |
| GREAT POINT PARTNERS LLC | Sold out | -750.0k |
| Octagon Capital Advisors LP | Sold out | -450.0k |
| GOLDMAN SACHS GROUP INC | Reduced | -331.3k |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -320.3k |
| STATE STREET CORP | Reduced | -312.1k |
| Kynam Capital Management, LP | Reduced | -272.1k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -238.5k |
| Exome Asset Management LLC | Sold out | -217.3k |
| PERCEPTIVE ADVISORS LLC | Reduced | -212.2k |
Biggest calls
| Caption Management, LLC | Added | $559.2k40.0k shares |
| GROUP ONE TRADING LLC | Added | $441.8k31.6k shares |
| CITADEL ADVISORS LLC | Reduced | $373.3k26.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $265.0k19.0k shares |
| JANE STREET GROUP, LLC | Reduced | $170.6k12.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.2m231.7k shares |
| Caption Management, LLC | New | $2.6m185.0k shares |
| GROUP ONE TRADING LLC | Added | $134.2k9.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 Q2 2025
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 |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 1 | $10.0m | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 3 | $30.6m | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.01% of their portfolio | 12.2m $171.1m | Added +15.8k |
| BlackRock, Inc. 0.00% of their portfolio | 5.5m $77.2m | Reduced -187.1k |
| Deep Track Capital, LP 2.42% of their portfolio | 5.4m $75.2m | Unchanged |
| Commodore Capital LP 4.81% of their portfolio | 4.9m $68.2m | Added +1.3m |
| VANGUARD GROUP INC 0.00% of their portfolio | 4.5m $63.0m | Reduced -54.6k |
| Kynam Capital Management, LP 6.66% of their portfolio | 4.4m $61.9m | Reduced -272.1k |
| Venrock Adviser, LLC 4.07% of their portfolio | 3.9m $54.3m | Unchanged |
| Fairmount Funds Management LLC 6.27% of their portfolio | 3.5m $48.4m | Added +14.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 2.9m $40.5m | Added +1.2m |
| TANG CAPITAL MANAGEMENT LLC 2.01% of their portfolio | 2.8m $39.7m | Added +50.0k |
| Paradigm Biocapital Advisors LP 1.64% of their portfolio | 2.7m $38.3m | Added +646.5k |
| STATE STREET CORP 0.00% of their portfolio | 2.6m $35.7m | Reduced -312.1k |
| NOVO HOLDINGS A/S 2.35% of their portfolio | 2.4m $33.3m | Added +129.7k |
| MAVERICK CAPITAL LTD 0.48% of their portfolio | 2.3m $31.6m | Added +195.7k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 1.9m $27.2m | Reduced -77.6k |
| Eversept Partners, LP 2.68% of their portfolio | 1.9m $26.6m | Added +524.9k |
| BAKER BROS. ADVISORS LP 0.24% of their portfolio | 1.7m $24.4m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.7m $24.3m | Added +20.1k |
| LOOMIS SAYLES & CO L P 0.02% of their portfolio | 1.3m $18.7m | Reduced -31.9k |
| Parkman Healthcare Partners LLC 2.10% of their portfolio | 1.3m $18.2m | Added +234.3k |
| Pictet Asset Management Holding SA 0.02% of their portfolio | 1.3m $17.7m | Added +17.0k |
| MARSHALL WACE, LLP 0.02% of their portfolio | 1.2m $16.9m | Added +123.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio | 1.1m $15.5m | Reduced -6.0k |
| Vivo Capital, LLC 1.41% of their portfolio | 982.6k $13.7m | Unchanged |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 899.8k $12.6m | Reduced -331.3k |
| Candriam S.C.A. 0.07% of their portfolio | 862.3k $12.1m | Reduced -18.2k |
| Woodline Partners LP 0.06% of their portfolio | 815.5k $11.4m | Added +1.8k |
| 5AM Venture Management, LLC 3.96% of their portfolio | 736.6k $10.3m | Unchanged |
| Rosalind Advisors, Inc. 4.74% of their portfolio | 700.0k $9.8m | Added +105.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 691.8k $9.7m | Added +691.6k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 649.5k $9.1m | Added +561.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 596.9k $8.3m | Reduced -105.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 574.0k $8.0m | Added +8.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 564.8k $7.9m | Added +11.9k |
| UBS Group AG 0.00% of their portfolio | 533.6k $7.5m | Added +29.5k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.39% of their portfolio | 515.6k $7.2m | Added +152.7k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 510.0k $7.1m | Reduced -27.1k |
| Yiheng Capital Management, L.P. 2.53% of their portfolio | 500.3k $7.0m | Unchanged |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 485.7k $6.8m | New |
| HighVista Strategies LLC 2.49% of their portfolio | 484.6k $6.8m | Added +304.0k |
| Ikarian Capital, LLC 2.17% of their portfolio | 469.9k $6.6m | Reduced -25.0k |
| PERCEPTIVE ADVISORS LLC 0.23% of their portfolio | 447.5k $6.3m | Reduced -212.2k |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. 0.70% of their portfolio | 423.3k $5.9m | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 416.0k $5.8m | Added +117.4k |
| Affinity Asset Advisors, LLC 0.81% of their portfolio | 390.0k $5.5m | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 386.9k $5.4m | Reduced -9.9k |
| Driehaus Capital Management LLC 0.04% of their portfolio | 376.8k $5.3m | Reduced -893.6k |
| PANAGORA ASSET MANAGEMENT INC 0.02% of their portfolio | 351.9k $4.9m | Reduced -2.9k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 332.1k $4.6m | Added +13.8k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 270.5k $3.8m | Added +21.4k |
| BARCLAYS PLC 0.00% of their portfolio | 231.1k $3.2m | Added +107.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 230.8k $3.2m | Added +50.7k |
| Nuveen, LLC 0.00% of their portfolio | 223.2k $3.1m | Reduced -25.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 203.8k $2.8m | Reduced -5.0k |
| Kopp Family Office, LLC 1.84% of their portfolio | 203.2k $2.8m | Reduced -2.2k |
| MORGAN STANLEY 0.00% of their portfolio | 200.4k $2.8m | Reduced -141.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 192.5k $2.7m | Reduced -5.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 190.2k $2.7m | Added +51.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 190.1k $2.7m | Added +59.5k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.08% of their portfolio | 182.5k $2.6m | Added +37.1k |
| J. Safra Sarasin Holding AG 0.04% of their portfolio | 171.1k $2.4m | Added +98.4k |
| ADAR1 Capital Management, LLC 0.39% of their portfolio | 170.6k $2.4m | Added +91.6k |
| Hennion & Walsh Asset Management, Inc. 0.10% of their portfolio | 168.3k $2.4m | Reduced -30.9k |
| MACQUARIE GROUP LTD 0.00% of their portfolio | 157.2k $2.2m | Reduced -3.8k |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 138.8k $1.9m | Added +57.2k |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.05% of their portfolio | 131.3k $1.8m | Added +24.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 126.0k $1.8m | Added +16.0k |
| DIADEMA PARTNERS LP 1.06% of their portfolio | 122.1k $1.7m | Reduced -40.0k |
| Hudson Bay Capital Management LP 0.01% of their portfolio | 119.6k $1.7m | New |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.04% of their portfolio | 111.5k $1.6m | Reduced -65.6k |
| Swiss National Bank 0.00% of their portfolio | 108.9k $1.5m | Added +1.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 107.4k $1.5m | Added +2.8k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 104.6k $1.5m | Reduced -18.3k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 104.0k $1.5m | Reduced -100.7k |
| J. Goldman & Co LP 0.04% of their portfolio | 100.8k $1.4m | Reduced -17.8k |
| Vestal Point Capital, LP 0.07% of their portfolio | 100.0k $1.4m | New |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 93.8k $1.3m | Reduced -99.5k |
| Merck & Co., Inc. 0.64% of their portfolio | 93.4k $1.3m | Unchanged |
| Knott David M Jr 0.58% of their portfolio | 91.5k $1.3m | Added +61.5k |
| TD Asset Management Inc 0.00% of their portfolio | 89.6k $1.3m | Added +57.0k |
| Moody Aldrich Partners LLC 0.24% of their portfolio | 89.2k $1.2m | Added +31.3k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 87.9k $1.2m | Reduced -110.4k |
| Velan Capital Investment Management LP 1.21% of their portfolio | 86.5k $1.2m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 79.8k $1.1m | Added +3.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 78.5k $1.1m | Added +18.3k |
| Rafferty Asset Management, LLC 0.00% of their portfolio | 76.4k $1.1m | Reduced -29.5k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 70.0k $978.3k | Reduced -152.4k |
| Walleye Capital LLC 0.01% of their portfolio | 64.6k $902.5k | Reduced -39.5k |
| Invesco Ltd. 0.00% of their portfolio | 62.2k $869.8k | Added +14.4k |
| DCF Advisers, LLC 0.42% of their portfolio | 62.0k $867.2k | Unchanged |
| Legal & General Group Plc 0.00% of their portfolio | 60.0k $838.6k | Reduced -232 |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 59.4k $830.9k | Reduced -238.5k |
| Knights of Columbus Asset Advisors LLC 0.05% of their portfolio | 58.0k $811.2k | Reduced -1.3k |
| Graham Capital Management, L.P. 0.02% of their portfolio | 55.2k $771.6k | Added +37.0k |
| Verition Fund Management LLC 0.00% of their portfolio | 53.9k $753.9k | Added +36.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 53.7k $750.6k | Reduced -1.0k |
| Susquehanna Portfolio Strategies, LLC 0.02% of their portfolio | 52.6k $734.9k | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 51.4k $718.9k | Added +7.0k |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 50.7k $708.3k | Reduced -11.0k |
| ALPS ADVISORS INC 0.00% of their portfolio | 44.0k $614.7k | Reduced -17.5k |