2026 has been a blockbuster year for mergers and acquisitions (M&A), with global M&A volume totaling $4.4 trillion across more than 32,000 deals. This marks the second-strongest first three-quarters of the year on record. Mega-deals have been a dominant trend, accounting for nearly half of recorded activity for the year.
Three deals account for more than half of the combined value of 2026’s 10 largest transactions: SpaceX's $250 billion merger with xAI, NextEra's $119.5 billion purchase of Dominion, and Marvell’s $119 billion acquisition of Lumentum, announced November 2.
AI has been the ultimate catalyst for M&A activity, driving technology, media, and telecom (TMT) deal volume to $763 billion year to date, a 27% increase from last year. The demand for data center capacity is further fueling M&A in the energy and industrials sectors, with deal value surging 53% year over year.
In this article, we take a closer look at this year’s top deals, leveraging in-depth findings from AlphaSense’s SuperAnalyst.
Source: SuperAnalyst prompt in AlphaSense: Create a dashboard highlighting the top M&A deals of 2026
SpaceX/xAI ($250 Billion, Closed in February 2026)
This year’s largest deal was SpaceX’s acquisition of xAI for $250 billion. The acquisition and rebranding of the business as SpaceX AI in February 2026 as its “Super Intelligence” business integrated frontier AI models with its existing space and connectivity infrastructure.
According to broker research, the development accelerated the launch of advanced reasoning models like Grok-4 and Grok-4 Heavy, positioning SpaceX to control the full physical and software stack, from orbital compute to enterprise AI applications.
NextEra Energy/Dominion Energy ($119.5 Billion, Targeted 2H27 Close)
In a proposed deal worth nearly $120 billion, NextEra Energy’s acquisition of Dominion Energy aims to create a regulated powerhouse, with management targeting 9%+ adjusted EPS growth through 2035 post-close. To secure approval in Virginia, the companies offered $2.25 billion in concessions, including bill credits and $100 million for workforce development.
Analysts believe NextEra is a technology leader that will continue scaling following the Dominion deal, with the combined entity being well-funded and well-positioned to lead the energy transition in the U.S. Analysts see the use of AI in joint operations as a value-add that will maintain or even expand operational and cost leadership.
Marvell/Lumentum ($119 Billion, Targeted 1H28 Close)
On November 2, Marvell, a fabless chip designer, announced a $119 billion all-stock acquisition of Lumentum, an optical and photonic technology company. As one of the largest semiconductor deals in history, the acquisition would bolster Marvell’s existing dominant market share in wired networking.
According to broker research, the deal would create the “largest pure-play AI optical connectivity company.” Analysts believe that while strategic rationale for the acquisition is high, the deal raises some concerns with a nearly 46% share count dilution and a lengthy expected close in 1H28. Beyond concerns of EPS dilution, analysts also question whether the limited premium fits with Lumentum’s strong optics outlook.
Paramount Skydance/Warner Bros ($110 Billion, Closed in October 2026)
The Paramount acquisition of Warner Bros. Discovery (WBD) closed in early October 2026, representing a transformative $110 billion consolidation and uniting two of Hollywood's “Big Five” studios. The transaction, valued at $31.02 per share in cash, was the result of an intense bidding war where Paramount ultimately prevailed over a competing $72 billion offer from Netflix.
Analyst sentiment on the acquisition is mixed, with concerns around actual value creation. Broker research finds that while the combined IP library is a “content juggernaut,” the commitment to a 30-film theatrical slate could become a liability if the company is unable to cut volume during periods of underperformance.
Pershing Square SPARC/Universal Music Group ($64.9 Billion, Rejected)
Pershing Square, the hedge fund led by Bill Ackman, first bought into Universal Music Group (UMG) in 2021 — taking a 10% stake from Vivendi, a French investment company, for about $3.95 billion in two tranches. In April 2026, Pershing sent UMG an unsolicited proposal, offering to purchase the firm at €22 per share in total for nearly $65 billion, which was ultimately rejected by major shareholder Bolloré as “insufficient.” Pershing sold its last position in June 2026, a week after UMG's board rejected its proposal.
Recent broker research finds that while UMG has held preliminary take-private talks with Apollo, TPG, and Blackstone, a potential deal faces many hurdles with a transaction being completed on favorable terms with its shareholders. Analysts note that while take-private speculation continues, the financing requirements for such a deal would imply an enterprise value approaching €50 billion, presenting a high bar for any suitor.
GameStop/eBay ($64.9 billion, Rejected)
In May, GameStop made an unsolicited offer to acquire eBay, one of the world’s largest online marketplaces, for nearly $56 billion in equity at $125 per share paid half in cash and half in stock. eBay's board rejected the offer as “neither credible nor attractive.” GameStop continued to build a significant equity position in the marketplace, owning nearly 10% of eBay’s shares as of August 2026.
GameStop CEO Ryan Cohen argued that GameStop's retail footprint could provide physical hubs for eBay's collectibles business, though market analysts remain skeptical of the financing and strategic viability of such a combination. Since the offer, eBay’s share-price gains have eroded the premium, making the original terms less attractive.
SpaceX/Anysphere ($60 billion, Closed August 2026)
SpaceX’s second massive acquisition of the year took Anysphere, the developer of the AI-native code editor Cursor, in August 2026 for an implied equity value of $60 billion, including a $42.5 billion purchase price and $23.4 billion of equity awards tied to future service.
The strategic move integrates Grok models directly into developer workflows, providing xAI with first-party usage data to train specialized coding models. The deal is a key component of SpaceX’s broader pivot toward enterprise AI software, with Cursor becoming the fastest-ever ramp to $500 million in ARR prior to its acquisition.
GIP/EQT Consortium/AES ($42.2 Billion, Pending)
A consortium led by BlackRock’s Global Infrastructure Partners (GIP) and EQT Infrastructure reached a definitive agreement to acquire AES Corporation for $15 per share in cash. The transaction, which values the clean energy firm at an enterprise value of $33.4 billion, was approved by AES stockholders in June 2026 and is expected to close by early 2027.
The take-private deal provides AES with the massive capital required to support its high-growth utility and renewable energy segments, particularly as AI-driven power demand surges across North America. Ohio and New York utility regulators, FERC, and CFIUS approvals are still outstanding, with closing targeted for late 2026 or early 2027.
McCormick & Co./Unilever Foods ($44.8 Billion, Mid-2027 Close)
McCormick agreed to acquire Unilever’s foods business in a Reverse Morris Trust transaction to scale its presence in the global condiments market. Unilever is set to receive a $15.7 billion cash payment, with holders owning about 65% of the combined company. The deal creates a combined entity with roughly $20 billion in annual revenue, though analysts have raised concerns about eroding trends in Unilever’s U.S. mayonnaise portfolio.
According to broker research, management expects $1.9 billion in cost synergies following a mid-2027 completion. Analysts believe that McCormick needs access to faster-growing international markets, and Unilever Foods provides established brands that McCormick “could never build organically.”
Intesa Sanpaolo/Monte dei Paschi (€31.4 Billion, Pending)
In a wave of Italian bank consolidation, Intesa Sanpaolo, Italy's largest bank, launched a voluntary tender offer for Banca Monte dei Paschi di Siena (MPS), Italy’s oldest bank, offering 1.66 new shares and €1 in cash per MPS share, valued at €31.4 billion. Delfin, MPS’s largest shareholder, has committed its 17.6% stake.
The deal received European Central Bank authorization in October 2026 and positions the entity as a dominant player with net income targeted to exceed €16 billion. According to broker research, to mitigate antitrust concerns, Intesa entered into an agreement with Unipol to sell approximately 635 branches and associated banking assets for up to €3.5 billion.
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