# EDGAR Filing Document

**Accession Number:** 0000277509
**File Stem:** 0001628280-25-051250
**Filing Date:** 2025-11
**Character Count:** 10453
**Document Hash:** ee3a7590629aec27433b12ada98efd95
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-25-051250.hdr.sgml**: 20251110

**ACCESSION NUMBER**: 0001628280-25-051250

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251106

**FILED AS OF DATE**: 20251110

**DATE AS OF CHANGE**: 20251110

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** WEBER MARK
- **CENTRAL INDEX KEY:** 0001302928

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-06003
- **FILM NUMBER:** 251468023

**MAIL ADDRESS:**
- **STREET 1:** 1333 BUTTERFIELD ROAD
- **STREET 2:** SUITE 500
- **CITY:** DOWNERS GROVE
- **STATE:** IL
- **ZIP:** 60515
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FEDERAL SIGNAL CORP /DE/
- **CENTRAL INDEX KEY:** 0000277509
- **STANDARD INDUSTRIAL CLASSIFICATION:** MOTOR VEHICLES & PASSENGER CAR BODIES [3711]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 361063330
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1333 BUTTERFIELD ROAD
- **STREET 2:** SUITE 500
- **CITY:** DOWNERS GROVE
- **STATE:** IL
- **ZIP:** 60515
- **BUSINESS PHONE:** 630-954-2000

**MAIL ADDRESS:**
- **STREET 1:** 1333 BUTTERFIELD ROAD
- **STREET 2:** SUITE 500
- **CITY:** DOWNERS GROVE
- **STATE:** IL
- **ZIP:** 60515

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FEDERAL SIGN & SIGNAL CORP /DE/
- **DATE OF NAME CHANGE:** 19600201

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>WEBER MARK<br><sub>(Last) (First) (Middle)</sub><br>1333 BUTTERFIELD ROAD<br>SUITE 500<br><sub>(Street)</sub><br>DOWNERS GROVE, IL 60515<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-06 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_SVP & COO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>FEDERAL SIGNAL CORP /DE/ [ FSS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-11-06 |  | M |  | 2546 | A | $27.80 | 76420 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 2546 | D | 112.5457<sup>(1)</sup> | 73874 | D |  |
| Common Stock | 2025-11-06 |  | M |  | 15682 | A | $42.86 | 89556 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 1640 | D | 112.5001<sup>(2)</sup> | 87916 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 14042 | D | 111.7011<sup>(3)</sup> | 73874 | D |  |
| Common Stock | 2025-11-06 |  | M |  | 19780 | A | $35.80 | 93654 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 19760 | D | 111.6109<sup>(4)</sup> | 73894 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 20 | D | $112.34 | 73874 | D |  |
| Common Stock | 2025-11-06 |  | M |  | 11470 | A | $51.81 | 85344 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 11470 | D | 111.0531<sup>(5)</sup> | 73874 | D |  |
| Common Stock | 2025-11-06 |  | M |  | 1709 | A | $82.31 | 75583 | D |  |
| Common Stock | 2025-11-06 |  | S |  | 1709 | D | 110.745<sup>(6)</sup> | 73874 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (right-to-buy) | $27.80 | 2025-11-06 |  | M |  |  | 2546 | <sup>(7)</sup> | 2030-05-08 | Common Stock | 2546 | $0 | 0 | D |  |
| Stock Option (right-to-buy) | $42.86 | 2025-11-06 |  | M |  |  | 15682 | <sup>(8)</sup> | 2031-05-06 | Common Stock | 15682 | $0 | 0 | D |  |
| Stock Option (right-to-buy) | $35.80 | 2025-11-06 |  | M |  |  | 19780 | <sup>(9)</sup> | 2032-05-04 | Common Stock | 19780 | $0 | 0 | D |  |
| Stock Option (right-to-buy) | $51.81 | 2025-11-06 |  | M |  |  | 11470 | <sup>(10)</sup> | 2033-05-04 | Common Stock | 11470 | $0 | 5734 | D |  |
| Stock Option (right-to-buy) | $82.31 | 2025-11-06 |  | M |  |  | 1709 | <sup>(11)</sup> | 2034-05-02 | Common Stock | 1709 | $0 | 8545 | D |  |

---

### Footnotes:

(1) This transaction was executed in multiple trades at prices ranging from $112.05 to $112.63; the price reported above reflects the weighted average sale price. The reporting person herebyundertakes 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.

(2) This transaction was executed in multiple trades at prices ranging from $112.46 to $112.69; the price reported above reflects the weighted average sale price. The reporting person herebyundertakes 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.

(3) This transaction was executed in multiple trades at prices ranging from $111.28 to $112.13; the price reported above reflects the weighted average sale price. The reporting person hereby undertakesto 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.

(4) This transaction was executed in multiple trades at prices ranging from $111.25 to $112.20; the price reported above reflects the weighted average sale price. The reporting person herebyundertakes 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.

(5) This transaction was executed in multiple trades at prices ranging from $110.71 to $111.51; the price reported above reflects the weighted average sale price. The reporting person herebyundertakes 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.

(6) This transaction was executed in multiple trades at prices ranging from $110.71 to $110.78; the price reported above reflects the weighted average sale price. The reporting person herebyundertakes 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.

(7) The option vested as to 8,122 shares on 05/08/2021, 8,121 shares on 05/08/2022 and 8,121 shares on 05/08/2023.

(8) The option vested as to 5,228 shares on 05/06/2022, 5,227 shares on 05/06/2023 and 5,227 shares on 05/06/2024.

(9) The option vested as to 6,594 shares on 05/04/2023, 6,593 shares on 05/04/2024 and 6,593 shares on 05/04/2025.

(10) The option vested as to 5,735 shares on 05/04/2024 and 5,735 shares on 05/04/2025. The remaining 5,734 options will vest on 05/04/2026.

(11) The option vested as to 3,418 shares on 05/02/2025. The remaining options will vest as to 3,418 shares on 05/02/2026 and 3,418 shares on 05/02/2027.

**Signature:** Diane I. Bonina, attorney-in-fact for Mark Weber  
**Date:** 2025-11-10

### Remarks:

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.**