Tax withholding changes Federal Signal (NYSE: FSS) COO share count

Rhea-AI Filing Summary

Federal Signal Corp SVP & COO Mark Weber reported a tax-related share disposition. On May 4, 2026, 2,278 shares of Common Stock were withheld at $117.49 per share to satisfy tax liabilities, leaving him with 86,500 directly owned shares. The Form 4 classifies this as a tax-withholding disposition rather than an open-market sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider WEBER MARK

Role SVP & COO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,278	$117.49	$268K

Holdings After Transaction: Common Stock — 86,500 shares (Direct, null)

Footnotes (1)

Key Figures

Shares withheld for taxes: 2,278 shares Per-share value for withholding: $117.49 per share Shares owned after transaction: 86,500 shares +1 more

4 metrics

Shares withheld for taxes 2,278 shares Tax-withholding disposition on May 4, 2026

Per-share value for withholding $117.49 per share Valuation used in tax-withholding disposition

Shares owned after transaction 86,500 shares Directly owned Common Stock following Form 4 transaction

Tax-withholding share count 2,278 shares Form 4 taxWithholdingShares in transaction summary

Key Terms

tax-withholding disposition, Common Stock, Form 4

3 terms

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

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.

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.

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^*

WEBER MARK

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026

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	05/04/2026		F		2,278	D	$117.49	86,500	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 Mark Weber	05/05/2026
	** 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 Federal Signal (FSS) report for Mark Weber?

Federal Signal reported that SVP & COO Mark Weber had 2,278 shares of Common Stock withheld to cover tax liabilities. The Form 4 classifies this as a tax-withholding disposition, not an open-market sale, and reflects administrative handling of equity compensation.

How many Federal Signal (FSS) shares were affected by Mark Weber’s tax withholding?

The Form 4 shows 2,278 Federal Signal Common Stock shares were disposed of through tax withholding. This payment method delivers shares back to the company to satisfy tax obligations tied to equity awards, rather than selling them on the open market for cash proceeds.

At what price were Mark Weber’s Federal Signal (FSS) shares valued for tax withholding?

The withheld 2,278 Federal Signal shares were valued at $117.49 per share in the tax-withholding disposition. This price is used to determine the value of shares applied toward Mark Weber’s tax liability associated with his equity compensation event on that date.

How many Federal Signal (FSS) shares does Mark Weber hold after this Form 4 transaction?

After the tax-withholding disposition, Mark Weber directly owns 86,500 Federal Signal Common Stock shares. This figure reflects his remaining position following the return of 2,278 shares to cover tax obligations, as disclosed in the Form 4 filing’s post-transaction holdings column.

Was Mark Weber’s Federal Signal (FSS) transaction an open-market sale or a tax event?

The transaction was a tax event, not an open-market sale. The Form 4 uses code F and describes it as payment of a tax liability by delivering securities, meaning shares were withheld to satisfy taxes rather than sold through regular market trading.