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Soleno Therapeutics (SLNO) director’s shares and options cancelled for $53 cash in Neurocrine merger

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Soleno Therapeutics director Birgitte Volck reported the cancellation of her equity in connection with Soleno’s merger with Neurocrine Biosciences. She disposed of 17,536 shares of Common Stock to the issuer on May 18, 2026, with each share converted into the right to receive $53.00 in cash as merger consideration.

Previously granted restricted stock units were also cancelled and similarly converted into the cash consideration. Multiple stock option awards, including 10,000 options with a $5.25 exercise price, were cancelled in exchange for cash equal to $53.00 minus the exercise price, multiplied by the options’ share count. Following these transactions, the filing shows Volck with no remaining Soleno shares or options.

Positive

  • None.

Negative

  • None.
Insider Volck Birgitte
Role null
Type Security Shares Price Value
Disposition Stock Option (Right to buy) 1,333 $0.00 --
Disposition Stock Option (Right to buy) 635 $0.00 --
Disposition Stock Option (Right to buy) 2,666 $0.00 --
Disposition Stock Option (Right to buy) 2,124 $0.00 --
Disposition Stock Option (Right to buy) 2,666 $0.00 --
Disposition Stock Option (Right to buy) 2,666 $0.00 --
Disposition Stock Option (Right to buy) 10,000 $0.00 --
Disposition Common Stock 17,536 $0.00 --
Holdings After Transaction: Stock Option (Right to buy) — 0 shares (Direct, null); Common Stock — 0 shares (Direct, null)
Footnotes (1)
  1. Certain of these shares are represented by previously reported restricted stock units ("RSUs"). Pursuant to the Agreement and Plan of Merger, dated as of April 5, 2026, by and among Soleno Therapeutics, Inc. (the "Company"), Neocrine Biosciences, Inc. ("Parent") and Sigma Merger Sub, Inc. ("Merger Sub"), on May 18, 2026, Merger Sub merged with and into the Company (the "Merger"), with the Company continuing as the surviving corporation and a wholly owned subsidiary of Parent. In connection with the Merger, each issued and outstanding vested and unvested RSU was cancelled and converted into the right to receive an amount equal to $53.00 in cash (the "Merger Consideration"). In connection with the Merger, each issued and outstanding share of the Company's Common Stock was cancelled and converted into the right to receive an amount in cash equal to the Merger Consideration. At the effective time of the Merger, this option was cancelled in exchange for a cash payment equal to (x) the difference between the Merger Consideration and the per share exercise price of the option, multiplied by (y) the number of shares covered by the option as of immediately prior to such cancellation.
Common shares disposed 17,536 shares Common Stock cancelled and converted into $53.00 cash on May 18, 2026
Merger consideration $53.00 per share Cash paid for each share of Soleno Common Stock and RSUs in merger
Option grant cancelled 10,000 options at $5.25 Stock Option (Right to buy) cancelled for cash equal to ($53.00 - $5.25) × shares
Option grant cancelled 2,666 options at $5.03 Stock Option cancelled for cash equal to ($53.00 - $5.03) × 2,666 shares
Option grant cancelled 2,666 options at $2.55 Stock Option cancelled for cash equal to ($53.00 - $2.55) × 2,666 shares
restricted stock units ("RSUs") financial
"Certain of these shares are represented by previously reported restricted stock units ("RSUs")."
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Agreement and Plan of Merger regulatory
"Pursuant to the Agreement and Plan of Merger, dated as of April 5, 2026..."
An Agreement and Plan of Merger is a formal document where two companies agree to combine into one, outlining how the process will happen. It’s like a step-by-step plan for merging, and it matters because it shows both sides have agreed on the details before the official transition takes place.
Merger Consideration financial
"converted into the right to receive an amount equal to $53.00 in cash (the "Merger Consideration")."
Merger consideration is the total payment a company or buyer offers to shareholders of a target company in exchange for combining the two businesses, and can include cash, shares in the surviving company, debt assumption, or a mix of these. Investors care because the form and amount affect the deal’s value, tax consequences, immediate cash received versus future ownership, and the risk and upside of holding new shares — similar to choosing between cash now or stock that could grow later.
wholly owned subsidiary financial
"the Company continuing as the surviving corporation and a wholly owned subsidiary of Parent."
A wholly owned subsidiary is a company whose entire ownership is held by another company (the parent), so the parent controls decisions, operations, and finances. Think of it as a fully controlled branch that runs as its own legal entity but whose results flow straight into the parent’s financial statements; investors watch these structures because they affect consolidated revenue, risk exposure, and how profits, liabilities, and cash flow are allocated across the corporate group.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
X
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Volck Birgitte

(Last)(First)(Middle)
100 MARINE PARKWAY, SUITE 400

(Street)
REDWOOD CITY CALIFORNIA 94065

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
SOLENO THERAPEUTICS INC [ SLNO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/18/2026D17,536(1)D(2)0D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to buy)$39.4505/18/2026D1,333 (3)06/10/2029Common Stock1,333(3)0D
Stock Option (Right to buy)$51.1505/18/2026D635 (3)05/18/2030Common Stock635(3)0D
Stock Option (Right to buy)$33.605/18/2026D2,666 (3)01/08/2031Common Stock2,666(3)0D
Stock Option (Right to buy)$15.305/18/2026D2,124 (3)06/01/2031Common Stock2,124(3)0D
Stock Option (Right to buy)$2.5505/18/2026D2,666 (3)06/01/2032Common Stock2,666(3)0D
Stock Option (Right to buy)$5.0305/18/2026D2,666 (3)05/25/2033Common Stock2,666(3)0D
Stock Option (Right to buy)$5.2505/18/2026D10,000 (3)05/26/2033Common Stock10,000(3)0D
Explanation of Responses:
1. Certain of these shares are represented by previously reported restricted stock units ("RSUs"). Pursuant to the Agreement and Plan of Merger, dated as of April 5, 2026, by and among Soleno Therapeutics, Inc. (the "Company"), Neocrine Biosciences, Inc. ("Parent") and Sigma Merger Sub, Inc. ("Merger Sub"), on May 18, 2026, Merger Sub merged with and into the Company (the "Merger"), with the Company continuing as the surviving corporation and a wholly owned subsidiary of Parent. In connection with the Merger, each issued and outstanding vested and unvested RSU was cancelled and converted into the right to receive an amount equal to $53.00 in cash (the "Merger Consideration").
2. In connection with the Merger, each issued and outstanding share of the Company's Common Stock was cancelled and converted into the right to receive an amount in cash equal to the Merger Consideration.
3. At the effective time of the Merger, this option was cancelled in exchange for a cash payment equal to (x) the difference between the Merger Consideration and the per share exercise price of the option, multiplied by (y) the number of shares covered by the option as of immediately prior to such cancellation.
/s/ Anish Bhatnagar, Attorney-in-Fact05/18/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Soleno Therapeutics (SLNO) director Birgitte Volck report in this Form 4?

Birgitte Volck reported disposals of Soleno equity back to the issuer in connection with a merger. Her common shares, RSUs, and stock options were cancelled and converted into cash consideration, leaving no Soleno shares or options reported after the transactions.

How many Soleno Therapeutics (SLNO) common shares were cancelled for Birgitte Volck?

The filing shows 17,536 shares of Soleno common stock disposed of to the issuer. Each share was cancelled in the merger and converted into the right to receive cash equal to the merger consideration of $53.00 per share, as described in the footnotes.

What cash consideration did Soleno (SLNO) shareholders receive in the Neurocrine merger?

Each issued and outstanding share of Soleno common stock was cancelled and converted into the right to receive $53.00 in cash. This same $53.00 merger consideration also applied when converting RSUs and calculating cash payments for cancelled stock options.

How were Birgitte Volck’s Soleno (SLNO) stock options treated in the merger?

At the merger’s effective time, each option was cancelled for a cash payment equal to $53.00 minus the option’s exercise price, multiplied by the number of underlying shares. Several grants, including 10,000 options at $5.25, were settled this way.

Does Birgitte Volck still hold Soleno Therapeutics (SLNO) equity after these transactions?

According to the Form 4, total shares following each reported transaction are zero for both common stock and the listed stock options. This indicates that, after the merger-related cancellations and cash payments, no Soleno shares or options remain reported for Volck.

What corporate event triggered these Soleno (SLNO) Form 4 dispositions?

The transactions occurred in connection with a merger where Sigma Merger Sub, Inc. merged into Soleno Therapeutics. Soleno continued as the surviving corporation and became a wholly owned subsidiary of Neurocrine Biosciences, Inc., with all common shares converted into $53.00 cash rights.