Curis CDO granted 48,285 stock options at $5.29

CURIS INC Chief Development Officer Jonathan B. Zung received a grant of employee stock options covering 48,285 shares of common stock at an exercise price of $5.29 per share.

Rhea-AI Filing Summary

CURIS INC Chief Development Officer Jonathan B. Zung received a grant of employee stock options covering 48,285 shares of common stock at an exercise price of $5.29 per share. These options expire on July 6, 2036 and represent his entire reported option position in this filing.

The grant vests over time. According to the terms, 25% of the original option shares vest on July 7, 2027, with an additional 6.25% vesting each successive quarter until July 7, 2030. This structure ties a significant portion of his compensation to the company’s long-term stock performance.

Insider Trade Summary

Grant/Award: 48,285 shares

Grant/Award 1 txn

Insider Zung Jonathan B.

Role CDO

Type	Security	Shares	Price	Value
Grant/Award	Employee stock option (right to buy)	48,285	$5.29	$255K

Holdings After Transaction: Employee stock option (right to buy) — 48,285 contracts (Direct)

Footnotes (1)

1. F1. The option grant described in this Form 4 filing vests as to 25% of the original shares on July 7, 2027 and as to an additional 6.25% of the original shares each successive quarter and until July 7, 2030.

Key Figures

Option grant size: 48,285 options Exercise price: $5.29 per share Post‑grant derivative holdings: 48,285 options +3 more

6 metrics

Option grant size 48,285 options Employee stock option grant to CDO Jonathan B. Zung

Exercise price $5.29 per share Strike price for the 48,285 CURIS common stock options

Post‑grant derivative holdings 48,285 options Total options held following this reported transaction

Initial vesting date July 7, 2027 25% of original option shares vest on this date

Quarterly vesting rate 6.25% of original shares Additional vesting each quarter until July 7, 2030

Option expiration July 6, 2036 Expiration date of the employee stock option grant

Key Terms

Employee stock option, exercise price, vesting, expiration date

4 terms

Employee stock option financial

"Employee stock option (right to buy)"

An employee stock option is a promise that lets a worker buy company shares later at a predetermined price, often after they stay for a certain period or meet performance goals — think of it like a coupon that locks in today's price for a future purchase. It matters to investors because options align employees’ incentives with company performance, can increase the number of shares outstanding (dilution) when exercised, and represent a compensation cost that affects reported profits and shareholder value.

exercise price financial

"conversion_or_exercise_price: "5.2900""

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

"vests as to 25% of the original shares on July 7, 2027"

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.

expiration date financial

"expiration_date: "2036-07-06T00:00:00.000Z""

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

FAQ

What did CURIS INC (CRIS) disclose about Jonathan Zung in this Form 4?

CURIS INC reported that Chief Development Officer Jonathan B. Zung received an employee stock option grant for 48,285 shares. The options are tied to CURIS common stock and are structured as long-term equity compensation rather than an immediate cash transaction or open-market stock purchase.

How many CURIS INC (CRIS) options were granted to Jonathan Zung and at what price?

Jonathan Zung was granted options on 48,285 shares of CURIS common stock at an exercise price of $5.29 per share. This means he can buy shares at that fixed price once the options vest, subject to the grant’s vesting schedule and expiration date.

When do Jonathan Zung’s CURIS INC (CRIS) stock options vest?

The option grant vests 25% of the original shares on July 7, 2027. After that, an additional 6.25% of the original 48,285 shares vests each successive quarter until July 7, 2030, creating a multi‑year, performance-tied incentive for the executive.

What is the expiration date of Jonathan Zung’s CURIS INC (CRIS) option grant?

The employee stock option grant to Jonathan Zung expires on July 6, 2036. If he does not exercise the 48,285 options by that date, they lapse. The long duration provides an extended window to benefit from potential stock appreciation, subject to vesting.

Did Jonathan Zung buy or sell CURIS INC (CRIS) shares in the market in this Form 4?

The Form 4 shows a grant of employee stock options, not an open‑market stock purchase or sale. The transaction is coded as a grant or award acquisition, meaning it is compensation-related equity rather than a discretionary market trade in CURIS shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/09/2026 - 04:10 PM Accepted by SEC EDGAR 07/09/2026 - 04:09 PM Learn about SEC filing dates

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^*

Zung Jonathan B.

(Last) (First) (Middle)

128 SPRING STREET

BUILDING C - SUITE 500

(Street)

LEXINGTON MASSACHUSETTS 02421

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CURIS INC [ CRIS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/07/2026

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
Employee stock option (right to buy)	$5.29	07/07/2026		A		48,285		(1)	07/06/2036	Common Stock	48,285	$5.29	48,285	D

Explanation of Responses:

1. The option grant described in this Form 4 filing vests as to 25% of the original shares on July 7, 2027 and as to an additional 6.25% of the original shares each successive quarter and until July 7, 2030.

Remarks:

Exhibit Index: 24.1 Power of Attorney

	/s/ Diantha Duvall, Attorney-in-fact	07/09/2026
	** 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)