LeonaBio (LONA) director Peter B. Silverman files initial Form 3

Rhea-AI Filing Summary

LeonaBio, Inc. director Peter B. Silverman filed an initial Form 3 as a reporting person for the company. The filing lists him as a director but shows no reported purchases, sales, or other transactions in LeonaBio securities, and no derivative holdings in this snapshot.

Key Figures

Buy transactions: 0 Sell transactions: 0 Net buy/sell shares: 0 shares

3 metrics

Buy transactions 0 Form 3 transaction summary buyCount

Sell transactions 0 Form 3 transaction summary sellCount

Net buy/sell shares 0 shares Form 3 transactionSummary netBuySellShares

Key Terms

Form 3, reporting person, director

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3):"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reporting person regulatory

""reportingPersons": [ { "name": "Silverman Peter B.""

director financial

""is_director": 1"

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
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hours per response:			0.5

1. Name and Address of Reporting Person^*

Silverman Peter B.

(Last) (First) (Middle)

C/O LEONABIO, INC.

18706 NORTH CREEK PARKWAY, SUITE 104

(Street)

BOTHELL WASHINGTON 98011

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
05/05/2026

3. Issuer Name and Ticker or Trading Symbol
LeonaBio, Inc. [ LONA ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Mark Worthington, Attorney-in-Fact for Peter B. Silverman	05/07/2026
	** Signature of Reporting Person	Date
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 5 (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 3: SEC 1473 (03-26)

FAQ

What does Peter B. Silverman’s Form 3 filing for LONA indicate?

The Form 3 shows Peter B. Silverman as a director of LeonaBio, Inc. It serves as his initial beneficial ownership report and, in this snapshot, discloses no purchases, sales, or derivative positions in LeonaBio securities.

Were any LeonaBio (LONA) shares bought or sold in this Form 3?

No. The transaction summary in the Form 3 reports zero buy and sell transactions, with net buy/sell shares also at zero, indicating no trading activity is being disclosed in this filing.

Does this LeonaBio (LONA) Form 3 show any option or derivative positions?

No. The derivativeSummary section is empty and the derivativeTransactionCount is zero, meaning the filing does not list any stock options, warrants, or other derivative securities for the reporting person.

What role does the reporting person hold at LeonaBio (LONA)?

The filing identifies Peter B. Silverman as a director of LeonaBio, Inc. He is not listed as an officer and is not flagged as a ten percent owner in this Form 3 snapshot.

Does the LeonaBio (LONA) Form 3 mention any gifts or tax-related share dispositions?

No. The transaction summary shows zero gifts and zero tax-withholding dispositions, indicating there are no reported gifts of shares or shares withheld for taxes in this particular Form 3.