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 ($3.4m this quarter). Holder counts are more reliable. Shares outstanding: 95.4m as of 2025-10-31, 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 ≈ $31.12. Options: 4 managers hold calls ($1.5m notional), 3 hold puts ($728.2k).
Trends to Q4 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 |
| Q3 2025 | 170 |
| Q4 2025 | 230 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 85 | 53 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $1.8m | $940.7k | 0.51 |
| Q2 2025 | $1.8m | $6.0m | 3.29 |
| Q3 2025 | $1.0m | $2.1m | 2.10 |
| Q4 2025 | $1.5m | $728.2k | 0.48 |
Biggest buyers
| Bellevue Group AG | New | +4.4m |
| FMR LLC | Added | +2.1m |
| PERCEPTIVE ADVISORS LLC | Added | +1.6m |
| MORGAN STANLEY | Added | +1.5m |
| Avoro Capital Advisors LLC | New | +1.5m |
| VANGUARD GROUP INC | Added | +1.3m |
| JENNISON ASSOCIATES LLC | New | +1.2m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +1.0m |
| BlackRock, Inc. | Added | +1.0m |
| D. E. Shaw & Co., Inc. | New | +1.0m |
Biggest sellers
| Commodore Capital LP | Sold out | -3.2m |
| Kynam Capital Management, LP | Reduced | -3.0m |
| Deep Track Capital, LP | Reduced | -2.9m |
| MAVERICK CAPITAL LTD | Sold out | -2.2m |
| Paradigm Biocapital Advisors LP | Reduced | -1.2m |
| TANG CAPITAL MANAGEMENT LLC | Reduced | -1.1m |
| DEUTSCHE BANK AG\ | Reduced | -457.7k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -445.3k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -430.1k |
| Parkman Healthcare Partners LLC | Reduced | -366.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $896.3k28.8k shares |
| CITADEL ADVISORS LLC | Reduced | $454.4k14.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $80.9k2.6k shares |
| GROUP ONE TRADING LLC | Added | $74.7k2.4k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $510.4k16.4k shares |
| CITADEL ADVISORS LLC | New | $211.6k6.8k shares |
| Walleye Capital LLC | Unchanged | $6.2k200 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 Q4 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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 1 | $10.0m | 1 | $70.8k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-12-31 | Tousignant Jennifer Chief Legal Officer | Sold | $70.8k2.3k shares |
| 2025-10-23 | Fairmount Healthcare Fund II L.P. +2 Director · Fairmount Healthcare Fund II LP | Bought | $10.0m454.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.02% of their portfolio | 14.4m $447.6m | Added +2.1m |
| BlackRock, Inc. 0.00% of their portfolio | 6.4m $200.2m | Added +1.0m |
| VANGUARD GROUP INC 0.00% of their portfolio | 5.6m $174.6m | Added +1.3m |
| Bellevue Group AG 2.57% of their portfolio | 4.4m $135.6m | New |
| Fairmount Funds Management LLC 9.27% of their portfolio | 3.9m $121.8m | Added +454.5k |
| Venrock Adviser, LLC 5.97% of their portfolio | 3.9m $120.8m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 3.5m $107.9m | Added +912.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 3.4m $107.0m | Added +1.0m |
| PERCEPTIVE ADVISORS LLC 1.73% of their portfolio | 3.0m $94.7m | Added +1.6m |
| Deep Track Capital, LP 1.79% of their portfolio | 2.5m $78.6m | Reduced -2.9m |
| NOVO HOLDINGS A/S 5.75% of their portfolio | 2.4m $74.1m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.0m $62.0m | Added +226.0k |
| BAKER BROS. ADVISORS LP 0.36% of their portfolio | 2.0m $61.4m | Added +227.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 2.0m $61.4m | Added +848.9k |
| TANG CAPITAL MANAGEMENT LLC 2.76% of their portfolio | 1.8m $55.8m | Reduced -1.1m |
| Eversept Partners, LP 3.11% of their portfolio | 1.8m $55.5m | Reduced -142.1k |
| Fisher Asset Management, LLC 0.02% of their portfolio | 1.8m $55.4m | Added +579.1k |
| MORGAN STANLEY 0.00% of their portfolio | 1.7m $54.1m | Added +1.5m |
| Avoro Capital Advisors LLC 0.46% of their portfolio | 1.5m $46.7m | New |
| LOOMIS SAYLES & CO L P 0.06% of their portfolio | 1.5m $46.1m | Reduced -69.2k |
| Kynam Capital Management, LP 2.98% of their portfolio | 1.5m $45.8m | Reduced -3.0m |
| Paradigm Biocapital Advisors LP 1.20% of their portfolio | 1.4m $44.9m | Reduced -1.2m |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 1.4m $44.0m | Reduced -445.3k |
| MARSHALL WACE, LLP 0.04% of their portfolio | 1.4m $42.8m | Added +506.6k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.3m $39.3m | Added +499.5k |
| JENNISON ASSOCIATES LLC 0.02% of their portfolio | 1.2m $35.9m | New |
| Woodline Partners LP 0.13% of their portfolio | 1.1m $34.7m | Added +300.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.0m $31.4m | Added +392.0k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 1.0m $31.1m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 990.1k $30.8m | Added +744.4k |
| Vivo Capital, LLC 1.98% of their portfolio | 982.6k $30.6m | Unchanged |
| Pictet Asset Management Holding SA 0.03% of their portfolio | 922.8k $28.7m | Reduced -126.6k |
| RICE HALL JAMES & ASSOCIATES, LLC 1.52% of their portfolio | 884.5k $27.5m | Added +32.9k |
| Elmind Capital, LP 7.89% of their portfolio | 858.6k $26.7m | First filing |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio | 790.0k $24.6m | Reduced -430.1k |
| Parkman Healthcare Partners LLC 2.33% of their portfolio | 788.1k $24.5m | Reduced -366.4k |
| Candriam S.C.A. 0.12% of their portfolio | 785.1k $24.4m | Reduced -75.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 749.0k $23.3m | Added +153.6k |
| Nuveen, LLC 0.01% of their portfolio | 742.3k $23.1m | Added +580.5k |
| 5AM Venture Management, LLC 7.21% of their portfolio | 736.6k $22.9m | Unchanged |
| First Turn Management, LLC 2.46% of their portfolio | 690.5k $21.5m | New |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 679.7k $21.2m | Added +602.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 668.4k $20.8m | Added +47.6k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 555.6k $17.3m | Reduced -83.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 517.4k $16.1m | Added +275.1k |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 503.9k $15.7m | Added +301.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 479.8k $14.9m | Reduced -457.7k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 460.1k $14.3m | Added +323.8k |
| Rosalind Advisors, Inc. 5.10% of their portfolio | 450.0k $14.0m | Reduced -150.0k |
| ALGERT GLOBAL LLC 0.21% of their portfolio | 425.0k $13.2m | New |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. 1.17% of their portfolio | 423.3k $13.2m | Unchanged |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 416.4k $13.0m | Added +416.2k |
| HighVista Strategies LLC 2.99% of their portfolio | 372.5k $11.6m | Reduced -96.9k |
| SILVERARC CAPITAL MANAGEMENT, LLC 1.57% of their portfolio | 348.6k $10.8m | Added +89.1k |
| Voleon Capital Management LP 0.23% of their portfolio | 345.7k $10.8m | New |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 341.3k $10.6m | New |
| PANAGORA ASSET MANAGEMENT INC 0.04% of their portfolio | 324.7k $10.1m | Reduced -53.0k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 303.8k $9.4m | Reduced -9.0k |
| Skandinaviska Enskilda Banken AB (publ) 0.04% of their portfolio | 286.3k $8.9m | New |
| Propel Bio Management, LLC 7.51% of their portfolio | 282.5k $8.8m | Added +192.5k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 279.6k $8.7m | Added +244.2k |
| Davern Capital Partners, LP 2.63% of their portfolio | 261.6k $8.1m | First filing |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 254.3k $7.9m | New |
| Affinity Asset Advisors, LLC 0.56% of their portfolio | 250.0k $7.8m | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 244.3k $7.6m | Added +36.0k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 226.8k $7.1m | Reduced -205.6k |
| Schonfeld Strategic Advisors LLC 0.03% of their portfolio | 217.4k $6.6m | Added +159.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 215.9k $6.7m | Added +18.7k |
| Yiheng Capital Management, L.P. 2.83% of their portfolio | 208.7k $6.5m | Reduced -291.5k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 193.5k $6.0m | Added +58.5k |
| Invesco Ltd. 0.00% of their portfolio | 183.5k $5.7m | Added +102.7k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 175.9k $5.5m | Reduced -37.4k |
| Privium Fund Management B.V. 0.99% of their portfolio | 173.5k $5.4m | New |
| Kopp Family Office, LLC 3.44% of their portfolio | 173.2k $5.4m | Reduced -20.7k |
| Hennion & Walsh Asset Management, Inc. 0.18% of their portfolio | 169.2k $5.3m | Added +14.8k |
| Driehaus Capital Management LLC 0.04% of their portfolio | 167.9k $5.2m | Reduced -176.2k |
| UBS Group AG 0.00% of their portfolio | 164.8k $5.1m | Reduced -282.9k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.01% of their portfolio | 154.7k $4.8m | First filing |
| STEMPOINT CAPITAL LP 0.82% of their portfolio | 154.3k $4.8m | New |
| Hudson Bay Capital Management LP 0.03% of their portfolio | 151.5k $4.7m | Reduced -23.8k |
| MOORE CAPITAL MANAGEMENT, LP 0.10% of their portfolio | 150.0k $4.7m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 147.3k $4.6m | Added +41.4k |
| Knott David M Jr 2.09% of their portfolio | 145.0k $4.5m | Added +28.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 139.4k $4.3m | Added +380 |
| CenterBook Partners LP 0.21% of their portfolio | 136.7k $4.3m | New |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 129.5k $4.0m | New |
| Swiss National Bank 0.00% of their portfolio | 128.6k $4.0m | Added +17.9k |
| NORGES BANK 0.00% of their portfolio | 122.8k $3.8m | Not comparable |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 119.9k $3.7m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 116.5k $3.6m | Added +78.9k |
| TD Asset Management Inc 0.00% of their portfolio | 114.0k $3.5m | Added +35.2k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 112.7k $3.5m | Added +29.2k |
| Simplify Asset Management Inc. 0.05% of their portfolio | 103.5k $3.2m | Added +53.5k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.11% of their portfolio | 101.1k $3.1m | Unchanged |
| SEVEN GRAND MANAGERS, LLC 0.24% of their portfolio | 100.0k $3.1m | New |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 99.8k $3.1m | Added +31.7k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 97.5k $3.0m | Reduced -6.9k |
| Moody Aldrich Partners LLC 0.56% of their portfolio | 96.2k $3.0m | Added +22.1k |
| Merck & Co., Inc. 1.13% of their portfolio | 93.4k $2.9m | Unchanged |
| ExodusPoint Capital Management, LP 0.03% of their portfolio | 92.7k $2.9m | Added +78.3k |