Soleno Therapeutics, Inc. - Common Stock (SLNO)

CUSIP: 834203309

Q3 2025 13F Holders as of 30 Sep 2025

Holder snapshot 7 signals
Share change
+8,420,099
Put/Call ratio
115%
SEC-reported price per share
$67.60
Number of holders
237
Value change
+$507,196,048
Number of buys
168
Open additional details 1 more signal available
Number of sells
102
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
51,293,400

Security key

834203309

Report period

Q3 2025

Institutions

237

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
30 Sep 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%
Vivo Opportunity Fund Holdings, L.P. 4.2%
Adage Capital Management, L.P. 2.6%
Nantahala Capital Management, LLC 2%
William G. Harris 0.04%

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
$299,594,264
3,575,964 shares
30 Jun 2025
Vivo Opportunity Fund Holdings, L.P.
13D/G
4.2%
$152,178,416
2,251,160 shares
-$115,402,258 30 Sep 2025
Adage Capital Management, L.P.
13D/G
2.6%
$94,746,538
1,401,576 shares
-$146,988,629 30 Sep 2025
Nantahala Capital Management, LLC
13D/G 13F
Company
2%
$86,766,978
1,001,350 shares
-$140,918,982 30 Jun 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%
$444,593,980
5,308,009 shares
30 Jun 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 Q3 2025

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

Institutions
237
Shares
65,165,847
Rows available
237
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 Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders
231
Q3 2025 holders
237
Holder diff
6
Investor Q2 2025 Shares Q3 2025 Shares Share Diff Share Chg % Q2 2025 value Q3 2025 value Value change Value Chg %
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