SOLENO THERAPEUTICS INC SLNO
COM · Common Stock · CUSIP 834203309
* 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. Holder counts are more reliable.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 20 |
| Q4 2022 | 26 |
| Q1 2023 | 21 |
| Q2 2023 | 23 |
| Q3 2023 | 55 |
| Q4 2023 | 77 |
| Q1 2024 | 99 |
| Q2 2024 | 115 |
| Q3 2024 | 144 |
| Q4 2024 | 168 |
| Q1 2025 | 219 |
| Q2 2025 | 236 |
| Q3 2025 | 241 |
| Q4 2025 | 250 |
| Q1 2026 | 227 |
| Q2 2026 | 0 |
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 2024 | 96 | 42 |
| Q4 2024 | 114 | 50 |
| Q1 2025 | 142 | 70 |
| Q2 2025 | 156 | 91 |
| Q3 2025 | 170 | 101 |
| Q4 2025 | 156 | 114 |
| Q1 2026 | 126 | 130 |
| Q2 2026 | 0 | 222 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $154.1m | $174.6m | 1.13 |
| Q4 2025 | $112.3m | $59.8m | 0.53 |
| Q1 2026 | $52.0m | $87.0m | 1.67 |
| Q2 2026 | $0 | $0 | — |
Biggest buyers
| None |
Biggest sellers
| FMR LLC | Sold out | -5.8m |
| WELLINGTON MANAGEMENT GROUP LLP | Sold out | -4.4m |
| BlackRock, Inc. | Sold out | -3.7m |
| STATE STREET CORP | Sold out | -2.7m |
| Avoro Capital Advisors LLC | Sold out | -2.3m |
| VANGUARD CAPITAL MANAGEMENT LLC | Sold out | -2.2m |
| Nantahala Capital Management, LLC | Sold out | -1.7m |
| Polar Capital Holdings Plc | Sold out | -1.7m |
| Khrom Capital Management LLC | Sold out | -1.5m |
| GEODE CAPITAL MANAGEMENT, LLC | Sold out | -1.2m |
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 |
|---|---|
| BlackRock, Inc. 13G · institution +1.4 pts · filed 2026-04-24 | 6.9% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 13G · institution filed 2025-02-12 | 6.4% |
| STATE STREET CORP 13G · institution new · filed 2026-05-12 | 5.2% |
Fell to 5% or below in the last year: WELLINGTON MANAGEMENT GROUP LLP (0.0%, 2026-08-13), PRICE T ROWE ASSOCIATES INC /MD/ (2.0%, 2026-05-15), Avoro Capital Advisors LLC (4.5%, 2026-05-15), JANUS HENDERSON GROUP PLC (2.3%, 2026-05-07), FMR LLC (0.4%, 2026-05-07), VANGUARD GROUP INC (0.0%, 2026-03-27), Vivo Opportunity Fund Holdings, L.P. (4.2%, 2025-11-14), Adage Capital Management, L.P. (2.6%, 2025-11-13; now reported by ADAGE CAPITAL PARTNERS GP, L.L.C.)
Holders, Q2 2026
| Manager | Shares | Change |
|---|