Federal Signal Corp (FSS) CEO Sherman reports stock gift and 401(k) adjustment

Rhea-AI Filing Summary

Federal Signal Corp12/18/2025, she disposed of 1,805 shares of common stock in connection with a bona fide gift to the University of Michigan. After this gift, she held 570,164.8353 shares of common stock directly.

The filing also notes that 2,152.0834 shares were acquired through a dividend reinvestment plan. In addition, units held in the issuer’s 401(k) plan, which are convertible into Federal Signal common stock, were adjusted from 59,887.0215 to 60,000.5812 units based on an issuer price per share of $111.20 on 12/18/2025.

12/19/2025 - 05:37 PM

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

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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^*

SHERMAN JENNIFER L

(Last) (First) (Middle)

1333 BUTTERFIELD ROAD

SUITE 500

(Street)

DOWNERS GROVE IL 60515

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FEDERAL SIGNAL CORP /DE/ [ FSS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	12/18/2025		G		1,805(1)	D	$0	570,164.8353(2)	D
Common Stock								60,000.5812(3)	I	held by 401(k) plan

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:

1. The shares were disposed of in connection with a bona fide gift by the Reporting Person to the University of Michigan.

2. 2,152.0834 shares were acquired through the dividend reinvestment plan.

3. Units held in the Issuer 401(k) plan, which are convertible into Issuer common stock, were adjusted from 59,887.0215 to 60,000.5812 based on the Issuer price per share of $111.20 on 12/18/2025.

Remarks:

	Diane I. Bonina, attorney-in-fact for Jennifer L. Sherman	12/19/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did Federal Signal Corp (FSS) report for Jennifer L. Sherman?

The filing reports that Jennifer L. Sherman, president, CEO and director of Federal Signal Corp, made a bona fide gift of 1,805 shares of common stock on 12/18/2025 to the University of Michigan.

How many Federal Signal (FSS) shares does Jennifer L. Sherman hold after the reported gift?

Following the reported gift, Jennifer L. Sherman beneficially owned 570,164.8353 shares of Federal Signal common stock directly.

What changes were disclosed for Jennifer L. Sherman’s 401(k) holdings in Federal Signal (FSS)?

The filing states that units in the issuer’s 401(k) plan, which are convertible into Federal Signal common stock, were adjusted from 59,887.0215 to 60,000.5812 units based on an issuer price per share of $111.20 on 12/18/2025.

Did Jennifer L. Sherman acquire any Federal Signal (FSS) shares through a dividend reinvestment plan?

Yes. The filing explains that 2,152.0834 shares of Federal Signal common stock were acquired through a dividend reinvestment plan.

What is the nature of the 1,805-share disposition reported for Federal Signal (FSS)?

The 1,805 shares were not sold in the market; they were disposed of as part of a bona fide gift by Jennifer L. Sherman to the University of Michigan, as described in the explanation of responses.

What roles does Jennifer L. Sherman hold at Federal Signal Corp (FSS)?

Jennifer L. Sherman is identified in the filing as both a director and an officer, serving as President & CEO of Federal Signal Corp.