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Sionna Therapeutics (SION) director granted 17,340 non-qualified stock options

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

Rhea-AI Filing Summary

Sionna Therapeutics director Paul J. Clancy received a new stock option award. He was granted a non-qualified option for 17,340 shares of common stock at an exercise price of $36.73 per share, expiring on June 16, 2036.

The option vests in full on the earlier of June 17, 2027 or the date of Sionna Therapeutics' next annual meeting, as long as he continues to serve through that vesting date. Following this grant, the filing shows Clancy holding 17,340 option shares directly.

Positive

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Insider Clancy Paul J
Role null
Type Security Shares Price Value
Grant/Award Non-Qualified Stock Option (right to buy) 17,340 $0.00 --
Holdings After Transaction: Non-Qualified Stock Option (right to buy) — 17,340 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Option shares granted 17,340 shares Non-qualified stock option grant to director Paul J. Clancy
Exercise price $36.73 per share Exercise price of granted options
Expiration date June 16, 2036 Option expiration for the grant
Vesting date trigger June 17, 2027 Latest vesting date, or earlier next annual meeting
Post-transaction holdings 17,340 option shares Total option shares held following grant
Non-Qualified Stock Option financial
"He was granted a non-qualified option for 17,340 shares of common stock"
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
exercise price financial
"at an exercise price of $36.73 per share, expiring on June 16, 2036"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
vesting financial
"The option vests in full on the earlier of June 17, 2027 or the date of Sionna Therapeutics' next annual meeting"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
annual meeting financial
"the earlier of June 17, 2027 or the date of Sionna Therapeutics' next annual meeting"
A company's annual meeting is a yearly gathering where owners (shareholders) and the board review performance, ask questions, and vote on key matters like electing directors, approving auditor choices, and sometimes setting pay or dividend policies. For investors it matters because decisions made and votes cast can change who runs the company, influence strategy and payouts, and affect the value or direction of their investment—similar to a homeowners’ meeting where rules and leaders that shape your property’s value are decided.
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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
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*
Clancy Paul J

(Last)(First)(Middle)
C/O SIONNA THERAPEUTICS, INC.
21 HICKORY DRIVE, SUITE 500

(Street)
WALTHAM MASSACHUSETTS 02451

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Sionna Therapeutics, Inc. [ SION ]
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)
06/17/2026
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
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
Non-Qualified Stock Option (right to buy)$36.7306/17/2026A17,340 (1)06/16/2036Common Stock17,340$0.017,340D
Explanation of Responses:
1. This option vests in full upon the earlier of June 17, 2027 or the date of the next annual meeting of Sionna Therapeutics, Inc., subject to the Reporting Person's continued service on such vesting date.
By: Jennifer Fitzpatrick, Attorney-in-Fact For: Paul Clancy06/18/2026
** 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 insider transaction did Sionna Therapeutics (SION) report for Paul J. Clancy?

Sionna Therapeutics reported that director Paul J. Clancy received a grant of non-qualified stock options for 17,340 shares. These options give him the right to purchase common stock at a fixed exercise price if the award eventually vests.

How many Sionna Therapeutics (SION) option shares were granted to Paul J. Clancy?

Paul J. Clancy received options covering 17,340 shares of Sionna Therapeutics common stock. This entire amount is shown as his post-transaction option position in the filing, reflecting a single grant rather than multiple transactions.

What is the exercise price of Paul J. Clancy’s Sionna Therapeutics (SION) stock options?

The granted non-qualified stock options have an exercise price of $36.73 per share. This means Clancy can buy Sionna Therapeutics common stock at $36.73 per share if and when the options vest and he chooses to exercise them.

When do Paul J. Clancy’s Sionna Therapeutics (SION) options vest?

The option award vests in full on the earlier of June 17, 2027 or the date of Sionna Therapeutics’ next annual meeting. Vesting is conditioned on Clancy’s continued service with the company through that vesting date, according to the footnote.

When do Paul J. Clancy’s Sionna Therapeutics (SION) options expire?

The options expire on June 16, 2036, if not exercised earlier. After that expiration date, Clancy would no longer have the right to purchase Sionna Therapeutics common stock under this specific non-qualified stock option grant.

Was Paul J. Clancy’s Form 4 transaction in Sionna Therapeutics (SION) a market buy or sell?

The Form 4 shows a grant or award acquisition of derivative securities, not a market purchase or sale. Clancy received non-qualified stock options from Sionna Therapeutics as compensation, with no open-market buying or selling reported in this transaction.