Corey E. Thomas - 18 Dec 2025 Form 4 Insider Report for Rapid7, Inc. (RPD)

Role: CEO, Director
Signature: /s/ Peter Kaes, Attorney-in-Fact
Issuer symbol: RPD
Transactions as of: 18 Dec 2025
Net transactions value: -$259,147
Form type: 4
Filing time: 19 Dec 2025, 16:15:02 UTC
Previous filing: 03 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Thomas Corey E.	CEO, Director	C/O RAPID7, INC., 120 CAUSEWAY STREET, BOSTON	/s/ Peter Kaes, Attorney-in-Fact	19 Dec 2025	0001647486

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RPD	COMMON STOCK	Options Exercise	$2,596,000	+200,000	+34%	$12.98	795,066	18 Dec 2025	Direct	F1
transaction	RPD	COMMON STOCK	Tax liability	$2,855,147	-182,321	-23%	$15.66	612,745	18 Dec 2025	Direct	F1
holding	RPD	COMMON STOCK						218,748	18 Dec 2025	By Thomas Family Holdings LLC	F2
holding	RPD	COMMON STOCK						30,000	18 Dec 2025	By Trust	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RPD	Employee Stock Option (Right to Buy)	Options Exercise	$0	-200,000	-100%	$0.000000	0	18 Dec 2025	COMMON STOCK	200,000	$12.98	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Reporting Person exercised non-qualified stock options for 200,000 shares at an exercise price of $12.98 per share. The Issuer withheld 182,321 shares to cover the exercise price and related withholding taxes, resulting in 17,679 shares issued.
F2	Represents shares held by the Thomas Family Holdings LLC ("LLC"). The reporting person is the manager of LLC and has the power to vote and dispose of the shares held by LLC. The reporting person disclaims beneficial ownership of the shares owned by LLC except to the extent of his pecuniary interest therein.
F3	Represents shares held by the Corey E. Thomas Irrevocable Trust of 2016, which is administrated by an independent trustee, and is for the benefit of the reporting person's immediate and other family members. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.
F4	This non-qualified stock option vested and became exercisable in sixteen equal quarterly installments on the 15th day of each calendar quarter beginning on May 15, 2016, subject to the Reporting Person's continued service with the Issuer.