FSSFEDERAL SIGNAL CORP /DE/CIK 0000277509Published annual result · newer filing being checked

ANNUAL DILUTED WEIGHTED-AVERAGE SHARES · SEC FILINGS

FEDERAL SIGNAL CORP /DE/ Diluted Share Count History

FEDERAL SIGNAL CORP /DE/ annual diluted weighted-average shares by fiscal year. Period-average diluted EPS shares, not shares outstanding on a single date.

At a glance

Shrinking-0.3%

5-year change · FY2020 to FY2025

FEDERAL SIGNAL CORP /DE/'s diluted weighted-average shares were 61.5M in FY2025, down 200,000 (0.3%) from FY2020 and down 200,000 (0.3%) year over year.

Latest61.5MFY2025

1 year-0.3%FY2024 to FY2025

5 years-0.3%FY2020 to FY2025

3 years+0.5%FY2022 to FY2025

10 years-3.0%FY2015 to FY2025

How this answer is calculated

Only the displayed annual diluted weighted-average share windows were reviewed; blocked windows remain unavailable and this metric is not period-end shares outstanding or a buyback-causality conclusion.

Filing checkNew quarterly filing observed

10-Q filed 2026-07-30 is being checked; the published annual result remains FY2025 (2025-12-31).

Data through: FY2025 (2025-12-31)
Published result source: 10-K filed 2026-02-25
Latest filing found: 10-Q filed 2026-07-30
Last checked: 2026-09-16 06:00 UTC

Source details Open SEC filing ↗

Update history0 recorded checks · 1 important event

Checks recordedNot recordedThe current filing status is available; detailed check history has not been recorded yet.

Filing updates1New filings and completed checks, excluding routine unchanged checks

Published result versionFirst published resultPublished 2026-09-08

2026-09-16 06:00 UTCNew quarterly filing observed
10-Q filed 2026-07-30 is being checked; the published annual result remains the current reviewed fiscal year.
0001628280-26-050993
Checked 2026-09-08 15:00 UTCPublished result
10-K filed 2026-02-25 contains the latest displayed annual observation.
0001628280-26-011576

Another lookup

Check another company

A company page opens when one exists. Other searches show current availability.

Annual history

Inspect the annual values behind the chart

Each annual value opens the SEC filing that contains the displayed fact.

Historical table

FEDERAL SIGNAL CORP /DE/ annual diluted weighted-average shares

View all SEC sources

Source filing is the exact SEC document used for the displayed fact, not necessarily the filing that first reported that fiscal year. Later comparative filings are labeled below.

Coverage: Reviewed selected fiscal years. The table includes FY2015, FY2020, FY2022, FY2024, FY2025; years not shown have not been presented as a continuous reviewed series.

Fiscal year	Diluted weighted-average shares	Change from previous displayed period	Filing containing fact
FY20252025-12-31	61.5M	-0.3%FY2024 to FY2025	10-K2026-02-25
FY20242024-12-31	61.7M	+0.8%FY2022 to FY2024	10-K2026-02-25comparative period
FY20222022-12-31	61.2M	-0.8%FY2020 to FY2022	10-K2025-02-26comparative period
FY20202020-12-31	61.7M	-2.7%FY2015 to FY2020	10-K2023-03-01comparative period
FY20152015-12-31	63.4M	n/a	10-K2018-02-28comparative period

Repurchases and stock-based compensationContext only; these figures do not explain the share-count changeOptional context

Source and calculation detailsDisplayed values, SEC filing links, and methodologyTechnical details

Values used on this page

5 of 5 rows shown

					Adjustment	Basis		Accession	Source location
FY2015, period ended 2015-12-31	2015-12-31	DWA shares	63.4M	63.4M	none	as reported	10-K2018-02-28comparative period	0000277509-18-000006	Exact XBRL fact
FY2020, period ended 2020-12-31	2020-12-31	DWA shares	61.7M	61.7M	none	as reported	10-K2023-03-01comparative period	0000277509-23-000004	Exact XBRL fact
FY2022, period ended 2022-12-31	2022-12-31	DWA shares	61.2M	61.2M	none	as reported	10-K2025-02-26comparative period	0000277509-25-000012	Exact XBRL fact
FY2024, period ended 2024-12-31	2024-12-31	DWA shares	61.7M	61.7M	none	as reported	10-K2026-02-25comparative period	0001628280-26-011576	Exact XBRL fact
FY2025, period ended 2025-12-31	2025-12-31	DWA shares	61.5M	61.5M	none	as reported	10-K (FY2025)2026-02-25	0001628280-26-011576	Exact XBRL fact

SEC filing and XBRL source details

5 displayed observations
5/5 filing-linked
5/5 exact source references
4 accessions

Official SEC EDGAR and Company Facts data · source notes

Each row connects a displayed value to an SEC filing and taxonomy tag. Open Technical details for the XBRL context, unit, decimals, and dimensions available for that row.

Period	Metric	Chart value	Filing	Accession	Taxonomy tag	Source location	Source
		value					links
FY2015, period ended 2015-12-312015-12-31	DWA shares	63.4M	10-K2018-02-28comparative period	`0000277509-18-000006`	`us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding`	Exact XBRL fact Technical details Context `FD2015Q4YTD` Unit `shares` Decimals `-5`	View filing View source document Company Facts
FY2020, period ended 2020-12-312020-12-31	DWA shares	61.7M	10-K2023-03-01comparative period	`0000277509-23-000004`	`us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding`	Exact XBRL fact Technical details Context `i8d874d6194c44a6fa725107db6adf2ef_D20200101-20201231` Unit `shares` Decimals `-5`	View filing View source document Company Facts
FY2022, period ended 2022-12-312022-12-31	DWA shares	61.2M	10-K2025-02-26comparative period	`0000277509-25-000012`	`us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding`	Exact XBRL fact Technical details Context `c-6` Unit `shares` Decimals `-5`	View filing View source document Company Facts
FY2024, period ended 2024-12-312024-12-31	DWA shares	61.7M	10-K2026-02-25comparative period	`0001628280-26-011576`	`us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding`	Exact XBRL fact Technical details Context `c-5` Unit `shares` Decimals `-5`	View filing View source document Company Facts
FY2025, period ended 2025-12-312025-12-31	DWA shares	61.5M	10-K (FY2025)2026-02-25	`0001628280-26-011576`	`us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding`	Exact XBRL fact Technical details Context `c-1` Unit `shares` Decimals `-5`	View filing View source document Company Facts

How this measure is calculated

What is measured?

Period-average diluted EPS denominator; not period-end shares outstanding.

How are windows compared?

Changes compare matching fiscal-year observations. A window is unavailable unless its exact start and end fiscal years are present in the checked series.

What is excluded?

Repurchase cash and stock-based compensation are contextual USD measures. They are not components of the share-count calculation and do not establish causation.

Display and calculation notes

Display rules

X-axis uses fiscal period end.
Share-line y-axis is range-scaled; USD bar charts use a zero baseline.
DWA is a period-average EPS denominator, not period-end shares outstanding.
Repurchase cash and SBC are USD context; not netted.
Split-adjusted displays keep both reported and chart values.

Calculation limits

Use the source trace and displayed data table to inspect filing, accession, period, unit, and XBRL trace.

Not investment advice. This page describes what filings report about share counts — research and education only, not investment, trading, tax, legal, or personalized financial advice.