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SLNO

Soleno Therapeutics Inc

Company with tickers: SLNO

CIK
1484565
CUSIP
834203309
Shares Outstanding
52,120,147
13F Activity (30d)
165 filings 161 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 228
Total Value: $2,209,926,664
Total Shares: 66,007,372
Showing 1–100 of 239 holdings by value · page 1 of 3

Institutional Ownership Trend

15 quarters

Holder Concentration

Across 228 13F filers · Δ vs Dec 31, 2025
Top Holder
10.8%
Jun 2023 → Mar 2026 · range 8.4% – 45.5%
−1.1 pts
Top 5
36.0%
Jun 2023 → Mar 2026 · range 31.0% – 93.6%
−1.7 pts
Top 10
51.5%
Jun 2023 → Mar 2026 · range 48.1% – 99.5%
−3.3 pts
HHI
381
Jun 2023 → Mar 2026 · range 326 – 2,933
Broadly held −50

Quarterly Activity

vs Dec 31, 2025
New
44
Increased
90
Decreased
73
Sold Out
68
Unchanged
21
Holder count: -24
Institutional value: -30.2%
Shares held: -3.5%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Showing 100 of 239
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Holder Value (USD) % of 13F Shares Open