Companies: 10,795·Total market cap: $144.5T
Spirax-Sarco Engineering plc

Spirax-Sarco Engineering plc

SPXSFOTCIndustrials● Active
$87.00
$-8.43(-8.83%)
Market Cap$6.4B
P/E Ratio
52W High$108
52W Low$77.23

Spirax-Sarco Engineering plc (SPXSF) Shares Outstanding — Overview

Basic and diluted weighted average shares, YoY change, float context, and historical trend from SEC filings and FMP.

SPXSF · shares outstanding · updated Jun 9, 2026

Key metrics

Basic Shares Outstanding · Weighted average · fiscal year
73.7M +0.00% YoY Change
FY · as of Dec 31, 2025 · Reported in GBP
vs 73.7M in FY 2024
Diluted Shares Outstanding
73.9M
incl. options, RSUs, convertibles
Dilution Spread
+0.27%
Diluted vs Basic
YoY Change
+0.00%
year-over-year
Source: FMP /income-statement · /shares-float · SEC 10-K / 10-QUpdated: 2026-06-09

Shares Outstanding Growth Rate

3-Year CAGRincreasing
+0.1%
2022 → 2025
5-Year CAGR
+0.0%
2020 → 2025
10-Year CAGRdeclining
-0.1%
2015 → 2025

Negative CAGR typically indicates share buyback or retirement activity. Interpret alongside Splits and Financials tabs. Splits / Financials

Shares outstanding history

↓ Decrease — typically buyback / retirement
↑ Increase — issuance / equity compensation
Latest
* most recent reported · FMP /income-statement · weightedAverageShsOut

Annual shares outstanding by year

FY 2025Latest
Diluted Shares: 73.9M
73.7M
+0.00%
FY 2024
Diluted Shares: 73.9M
73.7M
-0.09%
FY 2023
Diluted Shares: 73.8M
73.8M
+0.22%
FY 2022
Diluted Shares: 73.8M
73.6M
-0.14%
FY 2021
Diluted Shares: 73.9M
73.7M
+0.00%
FMP /income-statement · weightedAverageShsOut · weightedAverageShsOutDilUnit: Billions (B)

Industrials sector shares outstanding comparison

Shares Outstanding for similar companies or competitors in the Industrials sector.

#SymbolCompanyShares (Basic)vs SPXSF
#1
RTX CorporationRTX
RTX Corporation
1.341B+>999%
#2
GE AerospaceGE
GE Aerospace
1.067B+>999%
#3
The Boeing CompanyBA
The Boeing Company
762.3M+934.3%
#4
Union Pacific CorporationUNP
Union Pacific Corporation
592.5M+703.9%
#5
Caterpillar Inc.CAT
Caterpillar Inc.
466.5M+533.0%
#6
Eaton Corporation plcETN
Eaton Corporation plc
388.2M+426.7%
#7
Spirax-Sarco Engineering plcSPXSF
Spirax-Sarco Engineering plcYOU
73.7M

/company-screener · per-peer /income-statement · cache 86400s

Understanding Shares Outstanding

What Are Shares Outstanding? (Basic)

Spirax-Sarco Engineering plc (SPXSF) shares outstanding is the total number of issued shares held by shareholders — the basis for Basic EPS and market capitalization. As of December 31, 2025, Spirax-Sarco Engineering plc reports 73.7M basic shares outstanding (weighted average).

Basic vs. Diluted Shares Outstanding

Spirax-Sarco Engineering plc's basic shares outstanding (73.7M) represents currently issued shares. Diluted shares outstanding (73.9M) also includes potential shares from stock options, RSUs, and convertibles. Dilution spread: +0.27%.

Shares Outstanding vs. Float (Free Float)

Spirax-Sarco Engineering plc's float is — (— of total shares outstanding) — shares freely available for public trading, excluding insider-held and restricted shares.

Float data from /shares-float reflects the most recent SEC filing period-end. The weighted average shares (from /income-statement) may differ — this is a normal reporting window difference, not a data error.

FMP /income-statement · /shares-float · SEC EDGAR · GBP

About shares outstanding & methodology

Spirax-Sarco Engineering plc (SPXSF) shares outstanding history from 2006 to 2025. Shares outstanding can be defined as the total number of shares held by all shareholders — including institutional investors, retail investors, and company insiders — assuming conversion of all convertible debt, securities, warrants, and options. This metric excludes the company's treasury shares.

Spirax-Sarco Engineering plc shares outstanding for the fiscal year ending December 31, 2025 were 73.7M, a 0.00% increase year-over-year. Spirax-Sarco Engineering plc FY 2025 shares outstanding were 73.7M, a +0.00% increase from FY 2024.

Spirax-Sarco Engineering plc is a leading company operating in the Industrials sector. The company's share count trajectory — with a 10-year CAGR of -0.1% — is a key signal for investors evaluating capital return policy, EPS accretion, and long-term shareholder value creation.

Figures tie to SEC 10-K/10-Q income statement disclosures and FMP /income-statement · /shares-float where noted.

Frequently asked questions

SPXSF shares outstanding · 4 questions

As of December 31, 2025, Spirax-Sarco Engineering plc (SPXSF) has approximately 73.7M basic shares outstanding and 73.9M diluted shares outstanding. This represents a +0.00% year-over-year increase from FY 2024 (73.7M). The increase may reflect equity compensation issuances or secondary offerings.

SPXSF shares outstandinghow many shares does SPXSF haveSPXSF basic shares 2025SPXSF diluted shares

Data: FMP /income-statement · /shares-float · SEC EDGAR · weighted average basis · Spirax-Sarco Engineering plc SEC 10-K & 10-Q filings · US GAAP · Last updated: 2026-06-09