Director at Curis (NASDAQ: CRIS) makes open-market share buy

Rhea-AI Filing Summary

Curis Inc. director Kenneth I. Kaitin reported an open-market purchase of 10,000 shares of Curis common stock at $0.5487 per share. After this transaction, his direct ownership increased to 11,407 shares, indicating a meaningful addition relative to his prior holdings.

Insider Trade Summary

Net Buyer: 10,000 shares ($5,487)

Net Buy 1 txn

Insider KAITIN KENNETH I

Role Director

Bought 10,000 shs ($5K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	10,000	$0.5487	$5K

Holdings After Transaction: Common Stock — 11,407 shares (Direct)

Footnotes (1)

Key Figures

Shares purchased: 10,000 shares Purchase price: $0.5487 per share Total value of purchase: $5,487 +2 more

5 metrics

Shares purchased 10,000 shares Open-market purchase of Curis common stock

Purchase price $0.5487 per share Price paid for Curis common stock

Total value of purchase $5,487 10,000 shares at $0.5487 per share

Shares owned after transaction 11,407 shares Director’s direct Curis holdings post-transaction

Net buy-sell shares 10,000 shares Net change in reported non-derivative position

Key Terms

open-market purchase, Common Stock, Form 4

3 terms

open-market purchase financial

"transaction_action: "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

"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.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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^*

KAITIN KENNETH I

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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
Common Stock	03/31/2026		P		10,000	A	$0.5487	11,407	D

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

Explanation of Responses:

Remarks:

	/s/ Diantha Duvall, Attorney-in-fact	04/01/2026
	** 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 Curis (CRIS) report on this Form 4?

Curis reported that director Kenneth I. Kaitin made an open-market purchase of 10,000 shares of the company’s common stock. This transaction increases his direct equity stake and reflects a deliberate decision to add exposure at the reported share price.

How many Curis (CRIS) shares did the director buy and at what price?

Director Kenneth I. Kaitin bought 10,000 Curis common shares at $0.5487 per share. This open-market purchase indicates he was willing to commit additional capital at that trading level, modestly increasing his overall stake in the company.

What are Kenneth I. Kaitin’s total Curis (CRIS) holdings after the transaction?

Following the reported purchase, Kenneth I. Kaitin directly owns 11,407 shares of Curis common stock. This figure reflects his position after adding 10,000 shares in the open market on the reported transaction date.

Is the Curis (CRIS) insider transaction a buy or a sell?

The Form 4 shows a buy transaction. Director Kenneth I. Kaitin executed an open-market purchase of 10,000 Curis common shares, classified under transaction code “P,” which denotes a purchase in the open market or a private transaction.

What does transaction code "P" mean in the Curis (CRIS) Form 4 filing?

Transaction code “P” indicates a purchase in the open market or a private transaction. In this Curis filing, it confirms that director Kenneth I. Kaitin actively bought 10,000 common shares rather than receiving shares through compensation or other non-market mechanisms.