The M&A landscape continues to heat up, with high-profile transactions across aviation, semiconductors, wealth management, energy, and AI.
Below are the top five m&A deals announced in the week ending September 07, 2025. The data is curated from the Intellizence mergers & acquisitions Dataset.
Acquiring Company – Air Lease (ALC)
Acquired Company – SMBC Aviation Capital & a Consortium of Investors
Deal Amount – $7.4 Billion
Air Lease (ALC) is set to be acquired by a consortium of investors led by SMBC Aviation Capital in a $7.4 billion cash transaction. The deal marks one of the largest shake-ups in the global aircraft leasing market, bringing together two major players in an industry critical to global air travel and airline financing.
Acquiring Company – Cadence Design Systems
Acquired Company – Hexagon’s Design and Engineering Unit
Deal Amount – $3.16 Billion
Cadence Design Systems will purchase Hexagon’s design and engineering unit in a deal valued at $3.16 billion. This move expands Cadence’s portfolio in electronic design automation (EDA) and strengthens its reach into digital twin and simulation markets—bolstering its role in accelerating innovation across industries.
Acquiring Company – Madison Dearborn Partners
Acquired Company – Aon’s Wealthspire Wealth Management Business
Deal Amount – $2.7 Billion
Private equity firm Madison Dearborn Partners has agreed to acquire Aon’s Wealthspire wealth management business for $2.7 billion. The divestiture allows Aon to sharpen its focus on core insurance and risk services, while Wealthspire gains a dedicated partner to fuel growth in the competitive wealth management sector.
Acquiring Company – Plains All American Pipeline
Acquired Company – Epic Crude (55% Stake)
Deal Amount – $1.6 Billion
Plains All American Pipeline will acquire a 55% stake in EPIC Crude from Diamondback Energy and Kinetik Holdings in a deal worth $1.6 billion. The acquisition strengthens Plains’ position in the crude oil transportation and infrastructure space, particularly in the energy-rich Permian Basin.
Acquiring Company – OpenAI
Acquired Company – Statsig
Deal Amount – $1.1 Billion
In a move that blends artificial intelligence with product innovation, OpenAI is acquiring product testing startup Statsig in a deal valued at $1.1 billion. The acquisition provides OpenAI with advanced experimentation and feature-testing capabilities, enhancing its ability to deploy and refine new AI-powered products.
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