Stock report · Delisted · Nasdaq
Altair Engineering Inc (ALTR)
111.69USD Delisted Final close · Mar 24, 2025
ALTR no longer trades. Altair Engineering was acquired by Siemens on March 26, 2025.
All prices on this page are historical. The last trade was on March 24, 2025, at $111.69.
ALTR stock price history
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
- $111.78 · Feb 2025
- All-time low
- $17.41 · Nov 2017
- Return since IPO
- +510.0%
- Beta
- 1.45
- Book value / share
- $10.02
- Price / book
- 11.15
About Altair Engineering Inc
Altair Engineering, with its subsidiaries, developed software and cloud tools for simulation, high-performance computing, data analytics and artificial intelligence in the U.S. and abroad. It reported two segments: Software and Client Engineering Services.
The Software segment offered solvers and optimization tools, HPC software and hardware, modeling and visualization, data analytics and IoT tools. It covered areas such as fluid dynamics, fatigue, manufacturing simulation and cost estimation for automotive, marine, aerospace, chemical and architecture uses, plus consulting, implementation and training. Its suite addressed structures, motion, fluids, thermal, electromagnetics, system modeling and embedded systems.
The company also sold LED lighting technology designed to directly replace fluorescent tubes. Customers included universities, government agencies, manufacturers, drug companies, financial firms, weather agencies and electronics designers. Altair was founded in 1985 and based in Troy, Michigan.
Siemens acquired Altair on March 26, 2025 for $113.00 in cash per share, making it a Siemens subsidiary. The final trade was on March 24, 2025 at $111.69.
- Exchange (former)
- Nasdaq
- Sector
- Technology
- Industry
- Software - Application
- Headquarters
- Troy, MI
- Employees
- 3,500
- IPO date
- November 1, 2017
- Delisted
- March 26, 2025
- SEC CIK
- 1701732
Altair Engineering financials before the delisting
The last 5 fiscal years Altair Engineering reported as a public company, fiscal year ending December.
ALTR revenue and net income
ALTR earnings per share
ALTR annual financials
| Fiscal year | Revenue | Net income | EPS |
|---|---|---|---|
| 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 |
Net income is GAAP. EPS is adjusted (non-GAAP) EPS, as reported.
Altair Engineering stock FAQ
What happened to Altair Engineering stock?
Altair Engineering was acquired by Siemens on March 26, 2025. The final close was $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.
Can I still buy ALTR stock?
No. ALTR is no longer listed on the Nasdaq or any other U.S. exchange; it was removed on March 26, 2025.
What was the last price of ALTR?
ALTR last closed at $111.69 on March 24, 2025, which valued the company at about $6.78B.
How did Altair Engineering do in its last full fiscal year?
In fiscal 2024, its last full year as a public company, Altair Engineering reported revenue of $665.79M and net income of $14.2M.
When did Altair Engineering go public?
Altair Engineering shares started trading on November 1, 2017.
ALTR no longer trades, so there is no live quote. The information on this page is for reference only and is not investment advice; see our disclaimer.