Ian A. Hudson - 02 May 2025 Form 4 Insider Report for FEDERAL SIGNAL CORP /DE/ (FSS)

Role: S.V.P. & CFO
Signature: Diane I. Bonina, attorney-in-fact for Ian A. Hudson
Issuer symbol: FSS
Transactions as of: 02 May 2025
Net transactions value: +$581,298
Form type: 4
Filing time: 06 May 2025, 18:02:47 UTC
Previous filing: 28 Feb 2025
Next filing: 02 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hudson Ian A.	S.V.P. & CFO	1333 BUTTERFIELD ROAD, SUITE 500, DOWNERS GROVE	Diane I. Bonina, attorney-in-fact for Ian A. Hudson	06 May 2025	0001584756

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FSS	Common Stock	Award	$0	+3,176	+3.6%	$0.000000	90,205	02 May 2025	Direct	F1
transaction	FSS	Common Stock	Tax liability	$194,199	-2,243	-2.5%	$86.58	87,962	05 May 2025	Direct

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	FSS	Stock Option (right to buy)	Award	$775,497	+8,957		$86.58	8,957	02 May 2025	Common Stock	8,957	$86.58	Direct	F2

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

Explanation of Responses:

Id	Content
F1	This represents a restricted stock award. All 3,176 shares vest on 05/02/2028.
F2	Options become exercisable as to 2,986 shares on 05/02/2026, 2,985 shares on 05/02/2027 and the remaining 2,986 shares on 05/02/2028.