Soleno Therapeutics, Inc.
US ˙ NasdaqCM ˙ US8342033094
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecuritySLNO / Soleno Therapeutics, Inc.
InstitutionBarclays Plc
Latest Disclosed Ownership157,685 shares
Latest Disclosed Value $ 7,300,816
Barclays Plc ownership in SLNO / Soleno Therapeutics, Inc.

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 157,685 shares of Soleno Therapeutics, Inc. (US:SLNO) valued at $7,300,816 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 170,980 shares of Soleno Therapeutics, Inc.. This represents a change in shares of -7.78% during the quarter. The current value of the position is $8,358,882 USD.

Barclays Plc has a history of taking positions in derivatives of the underlying security (SLNO) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

SLNO / Soleno Therapeutics, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F SOLENO THERAPEUTICS COM 834203309 157,685 -13,295 -7.78 7,301 -36.84 0.0018
2026-03-31 2025-09-30 13F/A-3 SOLENO THERAPEUTICS COM 834203309 170,980 32,565 23.53 11,558 -0.33 0.0025
2026-03-19 2025-09-30 13F/A-2 SOLENO THERAPEUTICS COM 834203309 52,545 -85,870 2,653 0.0007
2025-11-12 2025-09-30 13F SOLENO THERAPEUTICS COM 834203309 170,980 32,565 11,558 0.0025
2026-02-27 2025-06-30 13F/A-2 SOLENO THERAPEUTICS COM 834203309 138,415 60,086 76.71 11,596 107.22 0.0027
2025-08-14 2025-06-30 13F/A-1 SOLENO THERAPEUTICS COM 834203309 138,415 60,086 12 0.0027
2025-08-13 2025-06-30 13F SOLENO THERAPEUTICS COM 834203309 138,415 60,086 12 0.0009
2026-03-17 2025-03-31 13F/A-1 SOLENO THERAPEUTICS COM 834203309 78,329 -48,346 -38.17 5,597 -1.72 0.0016
2025-05-15 2025-03-31 13F SOLENO THERAPEUTICS COM 834203309 78,329 -48,346 6 0.0016
2026-03-19 2024-12-31 13F/A-1 SOLENO THERAPEUTICS COM 834203309 126,675 74,130 141.08 5,694 114.71 0.0016
2025-02-13 2024-12-31 13F SOLENO THERAPEUTICS COM 834203309 126,675 74,130 6 0.0016
2026-03-31 2024-09-30 13F/A-2 SOLENO THERAPEUTICS COM 834203309 52,545 31,467 149.29 2,653 208.73 0.0007
2024-11-19 2024-09-30 13F/A-1 SOLENO THERAPEUTICS COM 834203309 52,545 31,467 3 0.0007
2024-11-15 2024-09-30 13F SOLENO THERAPEUTICS COM 834203309 52,545 31,467 3 0.0002
2026-03-23 2024-06-30 13F/A-1 SOLENO THERAPEUTICS COM 834203309 21,078 459 2.23 860 -2.61 0.0003
2024-08-14 2024-06-30 13F SOLENO THERAPEUTICS COM 834203309 21,078 459 1 0.0003
2026-03-24 2024-03-31 13F/A-1 SOLENO THERAPEUTICS COM 834203309 20,619 -686 -3.22 882 2.92 0.0003
2024-05-15 2024-03-31 13F SOLENO THERAPEUTICS COM 834203309 20,619 -686 1 0.0003
2026-03-25 2023-12-31 13F/A-1 SOLENO THERAPEUTICS COM 834203309 21,305 21,305 858 0.0003
2024-02-15 2023-12-31 13F SOLENO THERAPEUTICS COM 834203309 21,305 21,305 1 0.0003
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-13 2025-12-31 13F SOLENO THERAPEUTICS OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-03-31 2025-09-30 13F/A SOLENO THERAPEUTICS OPT Call 50,000 3,380 n/a n/a n/a
2025-11-12 2025-09-30 13F SOLENO THERAPEUTICS OPT Call 50,000 3,380 n/a n/a n/a
2025-08-14 2025-06-30 13F/A SOLENO THERAPEUTICS OPT Call 0 0 n/a n/a n/a
2026-02-27 2025-06-30 13F/A SOLENO THERAPEUTICS OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F SOLENO THERAPEUTICS OPT Call 0 0 n/a n/a n/a
2026-03-17 2025-03-31 13F/A SOLENO THERAPEUTICS OPT Call 94,700 6,766 n/a n/a n/a
2025-05-15 2025-03-31 13F SOLENO THERAPEUTICS OPT Call 94,700 7 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-13 2025-12-31 13F SOLENO THERAPEUTICS OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-03-31 2025-09-30 13F/A SOLENO THERAPEUTICS OPT Put 28,400 1,920 n/a n/a n/a
2025-11-12 2025-09-30 13F SOLENO THERAPEUTICS OPT Put 28,400 1,920 n/a n/a n/a
2025-08-14 2025-06-30 13F/A SOLENO THERAPEUTICS OPT Put 0 0 n/a n/a n/a
2026-02-27 2025-06-30 13F/A SOLENO THERAPEUTICS OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F SOLENO THERAPEUTICS OPT Put 0 0 n/a n/a n/a
2026-03-17 2025-03-31 13F/A SOLENO THERAPEUTICS OPT Put 10,000 714 n/a n/a n/a
2025-05-15 2025-03-31 13F SOLENO THERAPEUTICS OPT Put 10,000 1 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.