Climb Bio (CLYM) director Alexander Cumbo awarded options on 40,000 shares

Rhea-AI Filing Summary

Climb Bio, Inc. director Alexander Cumbo reported a grant of stock options covering 40,000 shares of common stock. The options have an exercise price of $10.55 per share, expire on June 4, 2036, and vest on the earlier of June 5, 2027 or immediately before the next annual stockholder meeting, subject to continued service.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Cumbo Alexander

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	40,000	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 40,000 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Option grant size: 40,000 options Exercise price: $10.55 per share Total options after grant: 40,000 options +2 more

5 metrics

Option grant size 40,000 options Stock Option (Right to Buy) granted to director

Exercise price $10.55 per share Strike price for Climb Bio common stock options

Total options after grant 40,000 options Holdings following reported transaction

Option expiration date June 4, 2036 Expiration of granted stock options

Vesting date benchmark June 5, 2027 Latest vesting date, or earlier before next annual meeting

Key Terms

Stock Option (Right to Buy), Common Stock, exercise price, vest, +1 more

5 terms

Stock Option (Right to Buy) financial

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

Common Stock financial

"underlying_security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

exercise price financial

"conversion_or_exercise_price: "10.5500""

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.

vest financial

"The shares subject to the option will vest on the earlier of June 5, 2027"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

annual meeting of stockholders financial

"or the date immediately prior to the date of the next annual meeting of stockholders"

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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^*

Cumbo Alexander

(Last) (First) (Middle)

C/O CLIMB BIO, INC.

20 WILLIAM STREET, SUITE 145

(Street)

WELLESLEY HILLS MASSACHUSETTS 02481

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Climb Bio, Inc. [ CLYM ]

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)
06/05/2026

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)	$10.55	06/05/2026		A		40,000		(1)	06/04/2036	Common Stock	40,000	$0	40,000	D

Explanation of Responses:

1. The shares subject to the option will vest on the earlier of June 5, 2027 or the date immediately prior to the date of the next annual meeting of stockholders, subject to the reporting person's continued service through such date.

Remarks:

Exhibit Index: 24.1 - Power of Attorney

	Chandra Adams, as Attorney-in-Fact	06/08/2026
	** 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 Climb Bio (CLYM) disclose for Alexander Cumbo?

Climb Bio disclosed that director Alexander Cumbo received stock options for 40,000 shares of common stock. These options were granted as compensation, not purchased on the open market, and represent a new derivative position reported on the Form 4 filing.

What is the exercise price of Alexander Cumbo’s Climb Bio (CLYM) stock options?

The stock options granted to Alexander Cumbo carry an exercise price of $10.55 per share. This means he can buy Climb Bio common stock at $10.55 once the options vest, regardless of the market price at that time.

When do Alexander Cumbo’s Climb Bio (CLYM) stock options vest?

The options vest on the earlier of June 5, 2027 or the date immediately before the next annual meeting of stockholders. Vesting is conditioned on Cumbo’s continued service with Climb Bio through the applicable vesting date.

How many Climb Bio (CLYM) options does Alexander Cumbo hold after this grant?

Following this transaction, Alexander Cumbo holds 40,000 stock options in Climb Bio. The entire reported position comes from this single grant and represents his derivative holdings as shown in the Form 4 data.

When do Alexander Cumbo’s Climb Bio (CLYM) options expire?

The granted stock options expire on June 4, 2036. After this expiration date, any unexercised options will no longer be usable, so exercise must occur between vesting and that expiration, subject to plan and company policies.