Altair Engineering Inc (ALTR) Stock

DelistedNasdaq: ALTRAltair Engineering Inc., together with its subsidiaries, develops and offers software and cloud solutions in the areas of simulation, high-performance computing, data analytics, and artificial intelligence in the United States and internationally.

111.69
Final close · Mar 24, 2025

ALTR is no longer traded. Altair Engineering was acquired by Siemens on March 26, 2025.

Each ALTR share was exchanged for $113.00 in cash. Prices on this page are historical; the last trade was March 24, 2025 at $111.69.

Altair Engineering stock price history

Split-adjusted closes, 2017–2025

ALTR final trading statistics

Final close
$111.69
Final trading day
Mar 24, 2025
Market cap at delisting
$6.78B
Shares outstanding
60.73M
Final 52-week range
$75.71 – $113.12
Avg. volume (final 3 mo.)
763,578
All-time high (split-adj.)
$111.78 · Feb 2025
All-time low (split-adj.)
$17.41 · Nov 2017
Return since IPO
+510.0%
Beta
1.45
Book value / share
$10.02
Price / book
11.15
Final 52 wk
75.71113.12

Altair Engineering earnings per share

Earnings per share

Altair Engineering revenue & net income

RevenueNet income

Altair Engineering annual financials

Altair Engineering Inc revenue, net income and EPS by fiscal year
Fiscal yearRevenueNet incomeEPS
FY2024$665.79M$14.2M$1.32
FY2023$612.70M-$8.9M$1.11
FY2022$572.22M-$43.4M$0.87
FY2021$532.18M-$8.8M$0.68
FY2020$469.92M-$10.5M$0.31

Last five fiscal years reported before the delisting; fiscal year ending December. EPS is adjusted (non-GAAP) EPS as reported. Source: company filings via EODHD.

About Altair Engineering Inc

Altair Engineering Inc., together with its subsidiaries, develops and offers software and cloud solutions in the areas of simulation, high-performance computing, data analytics, and artificial intelligence in the United States and internationally. It operates through two segments, Software and Client Engineering Services. The Software segment offers solvers and optimization technology products, high-performance computing software applications and hardware products, modeling and visualization tools, data analytics and analysis products, and Internet of Things platform and analytics tools, as well as support and the complementary software products. This segment also provides software technologies in the areas of computational fluid dynamics and fatigue, manufacturing process simulation, and cost estimation for the applications in automotive, marine, motorcycle, aerospace, chemical, and architecture industries; and software-related services, such as consulting, implementation, and training services that focuses on the product design and development expertise and analysis from the component level up to complete product engineering at various stage of the lifecycle. The Client Engineering Services segment provides client engineering services. In addition, the company develops and sells solid state lighting technology along with communication and control protocols based on its intellectual property for the direct replacement of fluorescent tubes with LED lighting. Its integrated suite of software optimizes design performance across various disciplines, including structures, motion, fluids, thermal management, electromagnetics, system modeling, and embedded systems. The company serves universities, government agencies, manufacturers, pharmaceutical firms, banking, financial services, and insurance, weather prediction agencies, and electronics design companies. Altair Engineering Inc. was founded in 1985 and is based in Troy, Michigan. As of March 26, 2025, Altair Engineering Inc. operates as a subsidiary of Siemens Prod

Altair Engineering stock FAQ

What happened to Altair Engineering stock?

Altair Engineering was acquired by Siemens on March 26, 2025. Shareholders received $113.00 in cash for each share. ALTR stock stopped trading on the Nasdaq, with a final close of $111.69 on March 24, 2025.

What did Altair Engineering shareholders receive?

Each ALTR share was converted into $113.00 in cash. The deal was valued at about $10 billion.

Is ALTR stock still trading?

No. ALTR was delisted from the Nasdaq on March 26, 2025 and no longer trades on a U.S. exchange.

What was the last price of ALTR stock?

ALTR closed at $111.69 on its final trading day, March 24, 2025, for a market value of about $6.78B.

What were Altair Engineering's revenue and earnings in its last full fiscal year?

Altair Engineering reported revenue of $665.79M and net income of $14.2M in fiscal 2024, its last full year as a public company.

When did Altair Engineering go public?

Altair Engineering Inc stock began trading on November 1, 2017.

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