Director Richard Maue of Federal Signal (FSS) receives 1,277-share stock grant

Rhea-AI Filing Summary

Maue Richard A reported acquisition or exercise transactions in this Form 4 filing.

Federal Signal Corporation director Richard A. Maue received a grant of 1,277 shares of Common Stock of FSS on April 21, 2026. The award was reported at a price of $0.00 per share, indicating a non-cash grant or award rather than a market purchase. Following this transaction, Maue directly holds 3,320 shares of Federal Signal Common Stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Maue Richard A

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,277	$0.00	--

Holdings After Transaction: Common Stock — 3,320 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 1,277 shares Grant price: $0.00 per share Total shares after transaction: 3,320 shares +1 more

4 metrics

Shares granted 1,277 shares Common Stock grant on April 21, 2026

Grant price $0.00 per share Reported transaction price for the award

Total shares after transaction 3,320 shares Maue’s direct Common Stock holdings following the grant

Transaction code A Grant, award, or other acquisition of securities

Key Terms

Common Stock, Grant, award, or other acquisition, Form 4, transaction code "A"

4 terms

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.

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

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.

transaction code "A" regulatory

"transaction_code_description: "Grant, award, or other acquisition""

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 ILLINOIS 60515

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/21/2026

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	04/21/2026		A		1,277	A	$0	3,320	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:

	Diane I. Bonina, attorney-in-fact for Richard A. Maue	04/23/2026
	** 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 Richard A. Maue report for FSS?

Richard A. Maue reported receiving a grant of 1,277 shares of Federal Signal (FSS) Common Stock. The shares were awarded at a reported price of $0.00 per share, reflecting a non-cash grant rather than an open-market purchase.

Was the Federal Signal (FSS) insider transaction a purchase or a grant?

The transaction was a grant or award acquisition, coded "A" on the Form 4. This indicates Maue received 1,277 shares of Common Stock as compensation or an award, not an open-market buy or sell transaction.

How many Federal Signal (FSS) shares does Richard A. Maue hold after this grant?

After the reported grant, Richard A. Maue directly holds 3,320 shares of Federal Signal Common Stock. This total includes the newly awarded 1,277 shares reported in the Form 4 insider transaction.

What does transaction code "A" mean in the Federal Signal (FSS) Form 4?

Transaction code "A" stands for a grant, award, or other acquisition of securities. For Federal Signal, it shows Richard A. Maue received 1,277 Common Stock shares as a non-cash award, rather than buying them in the open market.

Does the Federal Signal (FSS) Form 4 show any stock sales by Richard A. Maue?

No stock sales are reported in this Form 4. The filing shows only a grant of 1,277 shares of Common Stock to Richard A. Maue, increasing his direct holdings to 3,320 shares, with no dispositions listed.