AVIDITY BIOSCIENCES INC RNA
COM · Common Stock · CUSIP 05370A108
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersSan Diego, CA
- 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 ($1.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $28.40. Options: 7 managers hold calls ($10.4m notional), 8 hold puts ($4.2m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 127 |
| Q4 2022 | 149 |
| Q1 2023 | 140 |
| Q2 2023 | 144 |
| Q3 2023 | 144 |
| Q4 2023 | 145 |
| Q1 2024 | 159 |
| Q2 2024 | 198 |
| Q3 2024 | 247 |
| Q4 2024 | 238 |
| Q1 2025 | 222 |
| Q2 2025 | 208 |
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 | 81 | 59 |
| Q4 2023 | 71 | 70 |
| Q1 2024 | 86 | 72 |
| Q2 2024 | 131 | 67 |
| Q3 2024 | 152 | 86 |
| Q4 2024 | 121 | 130 |
| Q1 2025 | 127 | 106 |
| Q2 2025 | 108 | 113 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $10.7m | $10.4m | 0.97 |
| Q4 2024 | $19.5m | $21.2m | 1.08 |
| Q1 2025 | $9.0m | $30.3m | 3.35 |
| Q2 2025 | $10.4m | $4.2m | 0.40 |
Biggest buyers
| TORONTO DOMINION BANK | New | +3.5m |
| ROYAL BANK OF CANADA | Added | +1.2m |
| RA CAPITAL MANAGEMENT, L.P. | Added | +965.6k |
| RTW INVESTMENTS, LP | Added | +871.9k |
| Logos Global Management LP | Added | +600.0k |
| FMR LLC | Added | +570.7k |
| GOLDMAN SACHS GROUP INC | Added | +360.8k |
| BANK OF AMERICA CORP /DE/ | Added | +264.8k |
| D. E. Shaw & Co., Inc. | New | +237.4k |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Added | +234.7k |
Biggest sellers
| Driehaus Capital Management LLC | Sold out | -1.3m |
| Boxer Capital Management, LLC | Sold out | -865.0k |
| JANUS HENDERSON GROUP PLC | Reduced | -649.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -618.9k |
| BlackRock, Inc. | Reduced | -580.6k |
| Avoro Capital Advisors LLC | Reduced | -575.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -529.4k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -434.9k |
| MARSHALL WACE, LLP | Reduced | -395.0k |
| Finepoint Capital LP | Sold out | -380.7k |
Biggest calls
| Caption Management, LLC | Added | $4.6m162.0k shares |
| CITADEL ADVISORS LLC | Added | $2.1m75.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.1m73.5k shares |
| JANE STREET GROUP, LLC | Added | $826.4k29.1k shares |
| GROUP ONE TRADING LLC | Reduced | $511.2k18.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $244.0k8.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.9m68.5k shares |
| Caption Management, LLC | Reduced | $766.8k27.0k shares |
| CITADEL ADVISORS LLC | Reduced | $607.8k21.4k shares |
| MILLENNIUM MANAGEMENT LLC | Unchanged | $426.0k15.0k shares |
| JANE STREET GROUP, LLC | Reduced | $366.4k12.9k shares |
| GROUP ONE TRADING LLC | Reduced | $59.6k2.1k shares |
| SIMPLEX TRADING, LLC | Added | $45.0k1.6k 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 |
|---|---|
| VANGUARD GROUP INC 13G · institution filed 2025-10-30 | 9.6% |
| BlackRock, Inc. 13G · institution -1.1 pts · filed 2025-10-17 | 6.4% |
| Avoro Capital Advisors LLC 13G · institution filed 2026-02-17 | 5.5% |
Fell to 5% or below in the last year: RA CAPITAL MANAGEMENT, L.P. (0.0%, 2026-05-15), PRICE T ROWE ASSOCIATES INC /MD/ (0.1%, 2026-02-17), JANUS HENDERSON GROUP PLC (4.6%, 2026-02-17), WELLINGTON MANAGEMENT GROUP LLP (0.5%, 2026-02-10)
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.
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.03% of their portfolio | 16.2m $459.7m | Added +570.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.03% of their portfolio | 10.8m $307.0m | Reduced -529.4k |
| JANUS HENDERSON GROUP PLC 0.15% of their portfolio | 10.8m $306.1m | Reduced -649.4k |
| RTW INVESTMENTS, LP 3.89% of their portfolio | 9.6m $273.2m | Added +871.9k |
| BlackRock, Inc. 0.01% of their portfolio | 9.3m $265.2m | Reduced -580.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.05% of their portfolio | 9.2m $262.7m | Reduced -434.9k |
| VANGUARD GROUP INC 0.00% of their portfolio | 9.2m $262.7m | Added +5.1k |
| RA CAPITAL MANAGEMENT, L.P. 3.48% of their portfolio | 7.3m $206.4m | Added +965.6k |
| Avoro Capital Advisors LLC 3.51% of their portfolio | 7.0m $200.2m | Reduced -575.0k |
| STATE STREET CORP 0.00% of their portfolio | 4.2m $119.3m | Reduced -119.9k |
| TORONTO DOMINION BANK 0.22% of their portfolio | 3.5m $100.3m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 2.8m $80.9m | Added +92.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 1.8m $52.2m | Added +264.8k |
| ORBIMED ADVISORS LLC 1.29% of their portfolio | 1.8m $51.5m | Unchanged |
| Casdin Capital, LLC 4.59% of their portfolio | 1.8m $50.4m | Reduced -270.0k |
| Polar Capital Holdings Plc 0.26% of their portfolio | 1.8m $50.3m | Reduced -18.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.07% of their portfolio | 1.5m $43.4m | Reduced -618.9k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.2m $34.5m | Added +1.2m |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.1m $32.5m | Added +360.8k |
| Siren, L.L.C. 1.63% of their portfolio | 1.1m $31.5m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.0m $29.8m | Added +24.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 997.1k $28.3m | Reduced -21.4k |
| NORGES BANK 0.00% of their portfolio | 995.1k $28.3m | Added +156.9k |
| Pictet Asset Management Holding SA 0.03% of their portfolio | 967.6k $27.5m | Added +94.4k |
| Logos Global Management LP 3.60% of their portfolio | 950.0k $27.0m | Added +600.0k |
| Artisan Partners Limited Partnership 0.04% of their portfolio | 882.0k $25.0m | Reduced -46.3k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 813.9k $23.1m | Added +42.7k |
| Fiera Capital Corp 0.08% of their portfolio | 781.9k $22.2m | Added +9.6k |
| MPM BIOIMPACT LLC 3.74% of their portfolio | 760.0k $21.6m | Added +45.8k |
| Woodline Partners LP 0.10% of their portfolio | 635.1k $18.0m | Reduced -230.8k |
| Frazier Life Sciences Management, L.P. 0.71% of their portfolio | 625.0k $17.8m | Added +100.0k |
| UBS Group AG 0.00% of their portfolio | 596.6k $16.9m | Reduced -1.4k |
| Sofinnova Investments, Inc. 1.13% of their portfolio | 584.8k $16.6m | Added +204.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 580.3k $16.5m | Added +139.5k |
| Ensign Peak Advisors, Inc 0.03% of their portfolio | 530.8k $15.1m | Added +200.8k |
| EcoR1 Capital, LLC 0.84% of their portfolio | 500.0k $14.2m | Reduced -57.6k |
| MORGAN STANLEY 0.00% of their portfolio | 445.9k $12.7m | Reduced -79.8k |
| Candriam S.C.A. 0.07% of their portfolio | 442.8k $12.6m | Added +3.7k |
| ALETHEA CAPITAL MANAGEMENT, LLC 9.21% of their portfolio | 428.6k $12.2m | Added +6.9k |
| SILVERARC CAPITAL MANAGEMENT, LLC 2.38% of their portfolio | 410.0k $11.6m | Reduced -1.3k |
| TD Asset Management Inc 0.01% of their portfolio | 404.4k $11.5m | Reduced -28.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 396.0k $11.2m | Added +38.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 383.2k $10.9m | Added +16.6k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.19% of their portfolio | 375.9k $10.7m | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 371.8k $10.6m | Added +47.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 349.2k $9.9m | Reduced -315.2k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 343.7k $9.8m | Added +234.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 330.6k $9.4m | Added +180.5k |
| CITIGROUP INC 0.01% of their portfolio | 289.9k $8.2m | Reduced -87.4k |
| Aberdeen Group plc 0.01% of their portfolio | 279.8k $7.9m | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 272.3k $7.7m | Unchanged |
| Nuveen, LLC 0.00% of their portfolio | 269.4k $7.7m | Reduced -161.8k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 263.3k $7.5m | Reduced -1.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 255.6k $7.3m | Added +34.8k |
| Invesco Ltd. 0.00% of their portfolio | 243.1k $6.9m | Reduced -45.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 241.0k $6.8m | Added +56.4k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 237.4k $6.7m | New |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 237.0k $6.7m | Added +219.9k |
| Cormorant Asset Management, LP 0.42% of their portfolio | 200.0k $5.7m | Reduced -200.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 175.9k $5.0m | Reduced -17.1k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 175.6k $5.0m | Added +10.8k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 175.4k $5.0m | Added +10.6k |
| Swiss National Bank 0.00% of their portfolio | 172.2k $4.9m | Added +10.3k |
| EFG Asset Management (North America) Corp. 0.68% of their portfolio | 169.5k $4.8m | Added +14.1k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 151.2k $4.3m | Reduced -8.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio | 137.3k $3.9m | Reduced -6.5k |
| Ally Bridge Group (NY) LLC 3.30% of their portfolio | 132.7k $3.8m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 130.8k $3.7m | Added +3.1k |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 126.9k $3.6m | Reduced -17.9k |
| SPHERA FUNDS MANAGEMENT LTD. 0.94% of their portfolio | 126.0k $3.6m | Added +20.0k |
| Alyeska Investment Group, L.P. 0.01% of their portfolio | 125.0k $3.5m | Added +25.0k |
| Palo Alto Investors LP 0.72% of their portfolio | 118.9k $3.4m | New |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 113.0k $3.2m | Reduced -43.6k |
| Legal & General Group Plc 0.00% of their portfolio | 103.1k $2.9m | Added +3.9k |
| AXA S.A. 0.01% of their portfolio | 101.4k $2.9m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 90.3k $2.6m | Added +466 |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 81.4k $2.3m | Reduced -103.8k |
| Hudson Bay Capital Management LP 0.01% of their portfolio | 75.0k $2.1m | New |
| MetLife Investment Management, LLC 0.01% of their portfolio | 68.2k $1.9m | Added +2.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 65.6k $1.9m | Reduced -3.7k |
| ALPS ADVISORS INC 0.01% of their portfolio | 65.0k $1.8m | Reduced -22.3k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 65.0k $1.8m | Added +6.3k |
| Susquehanna Portfolio Strategies, LLC 0.04% of their portfolio | 64.2k $1.8m | New |
| Aquatic Capital Management LLC 0.04% of their portfolio | 62.1k $1.8m | New |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 61.1k $1.7m | Reduced -2.2k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 60.2k $1.7m | Reduced -395.0k |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 60.0k $1.6m | Unchanged |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 55.9k $1.6m | Reduced -5.7k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 55.7k $1.6m | Added +1.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 52.5k $1.5m | Added +22.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 47.5k $1.3m | Added +5.8k |
| SUPERSTRING CAPITAL MANAGEMENT LP 1.66% of their portfolio | 47.0k $1.3m | Added +24.8k |
| Privium Fund Management B.V. 0.28% of their portfolio | 46.0k $1.3m | Added +11.5k |
| Mirador Capital Partners LP 0.19% of their portfolio | 41.4k $1.2m | Added +13.2k |
| HighVista Strategies LLC 0.43% of their portfolio | 40.9k $1.2m | Reduced -13.3k |
| Foresite Capital Management VI LLC 0.64% of their portfolio | 40.0k $1.1m | New |
| Creative Planning 0.00% of their portfolio | 39.3k $1.1m | Added +6.6k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 37.4k $1.1m | Reduced -29.5k |
| Artia Global Partners LP 0.25% of their portfolio | 34.6k $982.6k | New |
| GUGGENHEIM CAPITAL LLC 0.01% of their portfolio | 32.6k $925.9k | Added +519 |