LeonaBio (LONA) director Grant Pickering receives 28,000 stock options

Rhea-AI Filing Summary

LeonaBio, Inc. director Grant Pickering received a grant of stock options covering 28,000 shares of common stock. The options have an exercise price of $9.54 per share and expire on April 8, 2036. This is a compensation-related award, not an open-market trade.

The filing shows Pickering holding 28,000 options after the transaction. According to the footnote, the options vest monthly over 24 months from the grant date, contingent on continued service as a Service Provider under LeonaBio’s 2026 Equity Incentive Plan.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider PICKERING GRANT

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	28,000	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 28,000 shares (Direct)

Footnotes (1)

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Key Figures

Option grant size: 28,000 options Exercise price: $9.54 per share Expiration date: April 8, 2036 +2 more

5 metrics

Option grant size 28,000 options Stock Option (Right to Buy) granted to director Grant Pickering

Exercise price $9.54 per share Exercise price for LeonaBio common stock under the option

Expiration date April 8, 2036 Option expiration for the 28,000-share grant

Vesting period 24 months Monthly vesting over 24 months from grant date

Post-transaction options held 28,000 options Total derivative holdings following this grant

Key Terms

Stock Option (Right to Buy), exercise price, vesting, 2026 Equity Incentive Plan

4 terms

Stock Option (Right to Buy) financial

"security_title: "Stock Option (Right to Buy)""

exercise price financial

"conversion_or_exercise_price: "9.5400""

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

"shares subject to the option shall be scheduled to vest monthly"

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.

2026 Equity Incentive Plan financial

"as defined in the Issuer's 2026 Equity Incentive Plan"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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^*

PICKERING GRANT

(Last) (First) (Middle)

C/O LEONABIO, INC.

18706 NORTH CREEK PARKWAY, SUITE 104

(Street)

BOTHELL WASHINGTON 98011

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/09/2026

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

X	Form 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)
			Code	V	Amount	(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$9.54	04/09/2026		A		28,000		(1)	04/08/2036	Common Stock	28,000	$0	28,000	D

Explanation of Responses:

1. The shares subject to the option shall be scheduled to vest monthly over a term of 24 months on the monthly anniversaries of the grant date, subject to the optionee continuing to be a Service Provider (as defined in the Issuer's 2026 Equity Incentive Plan) through the applicable vesting dates.

	/s/ Mark Worthington, Attorney in fact for Grant Pickering	04/13/2026
	** 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 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 ATHA director Grant Pickering report?

Grant Pickering reported receiving a stock option grant for 28,000 shares of LeonaBio common stock. The award is a compensation-related grant, not an open-market trade, and reflects options that can be exercised later at a fixed price if vesting conditions are met.

What is the exercise price of Grant Pickering’s new stock options at ATHA?

The stock options granted to Grant Pickering carry an exercise price of $9.54 per share. This means he can later buy LeonaBio common stock at $9.54, subject to vesting, regardless of the market price at the time of exercise.

How many shares are covered by Grant Pickering’s stock option grant at ATHA?

The stock option award covers 28,000 shares of LeonaBio common stock. These options are a form of equity compensation and do not represent currently owned shares; they become exercisable over time as vesting requirements are satisfied.

When do Grant Pickering’s LeonaBio stock options expire?

Grant Pickering’s stock options are scheduled to expire on April 8, 2036. He can exercise vested portions of the 28,000-share grant any time before that date, subject to the company’s plan rules and his continued eligibility as a Service Provider.

How do Grant Pickering’s options vest under LeonaBio’s 2026 Equity Incentive Plan?

The 28,000 options vest in equal monthly installments over 24 months from the grant date. Vesting requires that Grant Pickering continue as a Service Provider under LeonaBio’s 2026 Equity Incentive Plan through each monthly vesting date described in the footnote.