FEDERAL SIGNAL CORP /DE/ 8-K

What Happened

• Federal Signal Corporation (FSS) announced on May 20, 2026 that it posted investor presentation materials to its website. The materials were furnished as Exhibit 99.1 to the Form 8-K and are incorporated by reference into the filing. The disclosure was made under Regulation FD to ensure public availability of the information.

Key Details

• Date of disclosure: May 20, 2026.
• Exhibit furnished: Exhibit 99.1 — Investor presentation materials dated May 2026.
• Purpose: Materials "may be used in conversations with investors and analysts."
• Signature: Form 8-K signed by Ian A. Hudson, Senior Vice President and Chief Financial Officer.

Why It Matters

• This is a public, Reg FD disclosure (furnished, not filed) making the company’s investor presentation broadly available to all investors and analysts at the same time. While the 8-K does not announce earnings, executive changes, or a transaction, investors should review the posted presentation for any updated strategy, outlook, or financial information it may contain.