Director Richard Maue buys 2,000 Federal Signal (FSS) shares

Rhea-AI Filing Summary

Federal Signal Corp director Richard A. Maue bought 2,000 shares of common stock in an open-market purchase. The transaction occurred at a weighted average price of $110.766 per share, executed in multiple trades between $110.61 and $110.78. Following the purchase, he directly owns 2,000 shares.

Insider Trade Summary

Net Buyer: 2,000 shares ($221,532)

Net Buy 1 txn

Insider Maue Richard A

Role Director

Bought 2,000 shs ($222K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,000	$110.766	$222K

Holdings After Transaction: Common Stock — 2,000 shares (Direct)

Footnotes (1)

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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^*

Maue Richard A

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/10/2026

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	03/10/2026		P		2,000	A	$110.766(1)	2,000	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:

1. This transaction was executed in multiple trades at prices ranging from $110.61 to $110.78; the price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC, Federal Signal Corporation, or a security holder of Federal Signal Corporation.

Remarks:

	Diane I. Bonina, attorney-in-fact for Richard A. Maue	03/10/2026
	** 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.

FAQ

What did Federal Signal (FSS) director Richard A. Maue do in this Form 4?

Director Richard A. Maue purchased 2,000 shares of Federal Signal common stock in an open-market transaction. The filing shows this as a direct ownership position, indicating these shares are now held personally in his name after the reported trades.

How many Federal Signal (FSS) shares did Richard A. Maue buy and at what price?

Richard A. Maue bought 2,000 shares of Federal Signal common stock. The weighted average purchase price reported was $110.766 per share, with individual trade prices ranging from $110.61 to $110.78 during the execution of the transaction.

What is Richard A. Maue’s Federal Signal (FSS) shareholding after this transaction?

After the reported purchase, Richard A. Maue holds 2,000 shares of Federal Signal common stock directly. The Form 4 lists this as his total direct ownership position immediately following the open-market transaction disclosed in the filing.

Was Richard A. Maue’s Federal Signal (FSS) trade a market purchase or another type of transaction?

The transaction was an open-market purchase of common stock, coded as “P” on the Form 4. This code indicates a standard market or private purchase, rather than an option exercise, grant, gift, or tax-related share withholding event.

Did Richard A. Maue’s Federal Signal (FSS) trade occur in a single block or multiple trades?

The purchase was executed in multiple trades, not a single block. The footnote explains that individual trades occurred at prices between $110.61 and $110.78, with the Form 4 reporting the weighted average purchase price of $110.766 per share.