Soleno Therapeutics, Inc. - Common Stock (SLNO)

CUSIP: 834203309

Q2 2025 13F Holders as of 30 Jun 2025

Holder snapshot 7 signals
Share change
+2,177,111
Put/Call ratio
116%
SEC-reported price per share
$83.78
Number of holders
231
Value change
+$213,454,357
Number of buys
155
Open additional details 1 more signal available
Number of sells
91
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
51,293,400

Security key

834203309

Report period

Q2 2025

Institutions

231

Top holders

10

Ownership snapshot

Top reported holders of SLNO - Soleno Therapeutics, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
ADAGE CAPITAL PARTNERS GP...
Disclosed value leader
Janus Henderson Group Ltd.
Comparable rows
15/15
Latest evidence
05 Jun 2025
13F 13D/G 3/4/5 Lead comparable stake: 6.4% 13D/G row: ADAGE CAPITAL PARTNERS GP, L.L.C. Showing 1-6 of 15 holder rows.

Quick read

ADAGE CAPITAL PARTNERS GP, L.L.C. leads the comparable SEC ownership view at 6.4%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens ADAGE CAPITAL PARTNERS GP, L.L.C.'s linked filing trail.
Comparable ownership Top 5
ADAGE CAPITAL PARTNERS GP, L.L.C. 6.4%
Nantahala Capital Management, LLC 2%
William G. Harris 0.04%
Janus Henderson Group Ltd. 10%
Vivo Capital, LLC 8.7%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F 13D/G
Company · Adage Capital Management, L.P.
6.4%
from 13D/G
$313,858,129
4,392,696 shares
31 Mar 2025
Nantahala Capital Management, LLC
13F 13D/G
Company
2%
from 13D/G
$125,539,293
1,757,023 shares
31 Mar 2025
William G. Harris
3/4/5
Director
0.04%
$1,478,833
19,392 shares
05 Jun 2025
Janus Henderson Group Ltd.
13F
Company
13F
10%
$370,024,378
5,140,899 shares
31 Mar 2025
Vivo Capital, LLC
13F
Company
13F
8.7%
$318,545,106
4,458,294 shares
31 Mar 2025
Avoro Capital Advisors LLC
13F
Company
13F
4.9%
$180,411,250
2,525,000 shares
31 Mar 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
231
Shares
56,749,470
Rows available
231
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders
215
Q2 2025 holders
231
Holder diff
16
Investor Q1 2025 Shares Q2 2025 Shares Share Diff Share Chg % Q1 2025 value Q2 2025 value Value change Value Chg %
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