20 Biggest Tech Buyouts of All Time: $71B Disney-Fox to $32B Google-Wiz

The tech industry has seen over $600 billion in acquisition deal value over the last decade, reshaping entire sectors from gaming and cloud computing to cybersecurity and enterprise software. Every deal on this list required sophisticated due diligence — thousands of confidential documents shared through virtual data rooms. Peony (free, $0) is an AI-native data room (VDR) that helps deal teams organize diligence materials, track reviewer engagement with page-level analytics, and control document access throughout the M&A process.

TL;DR: The 20 largest tech acquisitions from 2014–2026 total over $600 billion in deal value. Disney–Fox ($71.3B) leads, followed by Broadcom–VMware ($69B) and Microsoft–Activision ($68.7B). 2025 was a record year with 5 mega-deals closing. Cybersecurity is the fastest-consolidating sector (4 deals in the top 20). The longest regulatory battle: Microsoft–Activision at 21 months.

Below are the 20 biggest tech acquisitions from 2014 to 2026, ranked by deal value, along with what made each transaction significant.

By the Numbers

• $600B+ in total acquisition value across the 20 largest tech deals
• $71.3B — largest completed deal (Disney → 21st Century Fox, 2019)
• $82.7B — largest proposed deal (Netflix → Warner Bros., abandoned February 2026)
• 5 mega-deals closed in 2025 alone, a record year for tech M&A
• 4 cybersecurity deals in the top 20, reflecting the sector's rapid consolidation
• 21 months — longest regulatory battle (Microsoft → Activision Blizzard, 2022–2023)
• $1B — largest termination fee paid (Adobe → Figma, abandoned 2023)

The 20 Largest Tech Acquisitions (Ranked by Deal Value)

1. Walt Disney → 21st Century Fox ($71.3B, 2019)

Disney acquired the entertainment and media assets of 21st Century Fox in March 2019, including 20th Century Fox film and TV studios, FX Networks, National Geographic, and Fox's 30% stake in Hulu. The deal gave Disney control of franchises like Avatar, X-Men, and The Simpsons while significantly expanding its content library ahead of the Disney+ streaming launch in November 2019. Rupert Murdoch retained Fox News, Fox Sports, and the Fox broadcast network as the new Fox Corporation. At $71.3 billion, it remains the largest media-tech acquisition in history and fundamentally reshaped the streaming landscape by concentrating major IP under Disney's umbrella.

2. Broadcom → VMware ($69B, 2023)

Broadcom completed its $69 billion acquisition of VMware in November 2023, creating a combined infrastructure technology giant. VMware, the pioneer of virtualization software used by nearly every Fortune 500 company, gave Broadcom a massive enterprise software business to complement its semiconductor operations. The deal faced scrutiny from regulators in the EU, UK, and China before clearing all hurdles. Post-acquisition, Broadcom controversially restructured VMware's licensing from perpetual licenses to subscription-only models, which drew backlash from customers but significantly boosted Broadcom's recurring revenue. The acquisition transformed Broadcom from primarily a chipmaker into one of the world's largest infrastructure software companies.

3. Microsoft → Activision Blizzard ($68.7B, 2023)

Microsoft closed its acquisition of Activision Blizzard in October 2023 after a contentious 21-month regulatory battle. The deal — valued at $68.7 billion ($95 per share) — was the largest gaming acquisition ever, giving Microsoft ownership of Call of Duty, World of Warcraft, Overwatch, Candy Crush, and Diablo. The U.S. Federal Trade Commission sued to block the merger, but a federal judge ruled in Microsoft's favor. The UK's Competition and Markets Authority initially blocked it before approving a restructured deal. The acquisition made Microsoft the world's third-largest gaming company by revenue, behind Tencent and Sony, and strengthened its Game Pass subscription service with a massive content library.

4. Dell → EMC ($67B, 2016)

Dell's $67 billion buyout of EMC Corporation in September 2016 was the largest technology acquisition at the time and created Dell Technologies, a privately held powerhouse spanning PCs, servers, storage, and cloud infrastructure. EMC brought its market-leading data storage business plus majority ownership of VMware (which Dell later spun off and Broadcom eventually acquired). The deal was engineered by Dell founder Michael Dell and private equity firm Silver Lake, funded through a complex mix of cash, stock, and debt. It demonstrated that even in the age of cloud computing, controlling enterprise hardware and storage infrastructure remained strategically valuable.

5. AMD → Xilinx ($49B, 2022)

AMD completed its $49 billion all-stock acquisition of Xilinx in February 2022, combining AMD's high-performance CPUs and GPUs with Xilinx's industry-leading FPGA (field-programmable gate array) chips. FPGAs are reconfigurable processors used in telecommunications, data centers, automotive systems, and defense applications — markets where AMD had limited presence. The merger positioned AMD to compete more broadly against Intel and Nvidia across a wider range of computing workloads, particularly in the rapidly growing AI and machine learning acceleration market. Under AMD's leadership, Xilinx's adaptive computing technology has been integrated into AMD's data center and embedded product lines.

6. Elon Musk → Twitter ($44B, 2022)

Elon Musk completed his $44 billion leveraged buyout of Twitter in October 2022, taking the social media platform private after months of legal drama. Musk initially offered $54.20 per share in April 2022, then tried to back out citing concerns about bot accounts, before Twitter sued to enforce the deal and Musk ultimately proceeded at the original price. He funded the acquisition with approximately $13 billion in bank loans, $7.1 billion from equity co-investors, and roughly $25 billion of his own equity. Post-acquisition, Musk rebranded the platform to X, laid off approximately 80% of staff, overhauled content moderation policies, and introduced new revenue streams including premium subscriptions. The acquisition remains one of the most scrutinized and polarizing tech deals of the decade.

7. Avago Technologies → Broadcom ($37B, 2016)

Avago Technologies acquired Broadcom Corporation for approximately $37 billion in February 2016, then took the Broadcom name for the combined entity — making it one of the rare acquisitions where the buyer adopts the target's brand. Avago, a Singapore-headquartered chipmaker spun out of Hewlett-Packard, gained Broadcom's extensive networking, broadband, and wireless semiconductor portfolio. The deal was orchestrated by CEO Hock Tan, whose acquisition-driven strategy has defined Broadcom's growth playbook ever since. The combined company went on to become one of the world's largest semiconductor firms and later attempted a hostile $117 billion bid for Qualcomm (blocked by the Trump administration in 2018 on national security grounds) before eventually acquiring VMware for $69 billion.

8. Synopsys → Ansys ($35B, 2025)

Synopsys completed its $35 billion acquisition of Ansys in July 2025, combining the world's largest electronic design automation (EDA) company with the leading simulation and multiphysics software provider. The deal required divestitures of Synopsys's Optical Solutions Group and Ansys PowerArtist businesses to Keysight Technologies to satisfy regulators in the US, EU, and UK. Together, Synopsys and Ansys aim to offer an integrated platform that lets engineers design, simulate, and verify chips and systems in a single workflow — from silicon to full product. The acquisition reflects the increasing complexity of modern chip design, where simulation at every stage has become essential as chips shrink to 2nm and below.

9. IBM → Red Hat ($34B, 2019)

IBM acquired Red Hat for $34 billion in July 2019, making it the largest open-source software acquisition in history. Red Hat, the company behind Red Hat Enterprise Linux and OpenShift container platform, was the dominant commercial vendor in the open-source enterprise market. IBM CEO Ginni Rometty positioned the deal as a pivot toward hybrid cloud — the strategy of running workloads across private data centers and public clouds — which successor CEO Arvind Krishna has continued to execute. Notably, IBM committed to keeping Red Hat operationally independent and preserving its open-source development model, a promise that has largely been maintained. The acquisition transformed IBM from a declining legacy IT vendor into a hybrid cloud platform company.

10. Google → Wiz ($32B, pending)

Google agreed to acquire cloud security startup Wiz for $32 billion in March 2025, marking Alphabet's largest acquisition ever. Wiz, founded in Israel in 2020 by former Microsoft engineers, had grown to over $500 million in annual recurring revenue by identifying and fixing cloud security vulnerabilities across AWS, Azure, and Google Cloud environments. Google had previously attempted to buy Wiz for $23 billion in 2024, but Wiz rejected the offer and briefly explored an IPO before ultimately accepting the higher bid. The deal is expected to close in 2026 pending regulatory review and would significantly bolster Google Cloud's security capabilities as it competes with AWS and Azure for enterprise customers.

11. Oracle → Cerner ($28.3B, 2022)

Oracle completed its $28.3 billion acquisition of Cerner Corporation in June 2022, marking Oracle's largest deal ever and a major bet on healthcare technology. Cerner was one of the two dominant electronic health records (EHR) providers in the U.S., alongside Epic Systems, with its software running in hospitals and health systems managing millions of patient records. The acquisition gave Oracle immediate scale in the healthcare IT market, which founder Larry Ellison described as a once-in-a-generation opportunity to modernize medical records with cloud computing and AI. Post-acquisition, Oracle rebranded Cerner as Oracle Health and has been migrating Cerner's on-premises systems to Oracle Cloud Infrastructure.

12. Cisco → Splunk ($28B, 2024)

Cisco completed its $28 billion acquisition of Splunk in March 2024, the largest deal in Cisco's 40-year history. Splunk, known for its data analytics and security information and event management (SIEM) platform, processes machine data from IT infrastructure to help organizations detect cybersecurity threats and troubleshoot operational issues. The acquisition shifted Cisco's business model from hardware-centric networking toward software and recurring revenue in the fast-growing observability and cybersecurity markets. Together, the companies aim to provide end-to-end visibility across an organization's entire digital infrastructure — from network hardware to application logs to security alerts.

13. Salesforce → Slack ($27.7B, 2021)

Salesforce closed its $27.7 billion acquisition of Slack Technologies in July 2021, integrating the popular workplace messaging platform into its enterprise software ecosystem. Slack, which had pioneered channel-based business communication and grown to over 12 million daily active users, became the primary interface for Salesforce's Customer 360 platform. The deal was widely seen as Salesforce's answer to Microsoft Teams, which had been rapidly gaining market share in enterprise communication. Under Salesforce, Slack has been integrated with Sales Cloud, Service Cloud, and other Salesforce products, though it continues to face intense competition from Microsoft Teams' bundled distribution advantage.

14. Microsoft → LinkedIn ($26.2B, 2016)

Microsoft acquired LinkedIn for $26.2 billion in December 2016, gaining the world's largest professional social network with over 430 million members at the time (now over 1 billion). The deal gave Microsoft a unique data asset — professional identity and relationship data — that it has integrated across Outlook, Teams, Dynamics 365, and its AI products. LinkedIn has proven to be one of the most successful tech acquisitions of the decade, growing revenue from $3 billion at the time of acquisition to over $16 billion annually. The platform's advertising and premium subscription business has become a significant profit center for Microsoft, and LinkedIn data now powers features across Microsoft's Copilot AI products.

15. Palo Alto Networks → CyberArk ($25B, 2026)

Palo Alto Networks completed its $25 billion acquisition of CyberArk on February 11, 2026, establishing identity security as a new core pillar of its cybersecurity platform. CyberArk, founded in Israel in 1999, was the market leader in privileged access management — controlling who can access an organization's most sensitive systems and data. The acquisition nearly collapsed during negotiations before ultimately clearing regulatory review in the US, EU, UK, and Israel. The deal reflects the cybersecurity industry's rapid consolidation, with Palo Alto Networks building a comprehensive platform spanning network security, cloud security, and now identity security under a single vendor.

16. Meta (Facebook) → WhatsApp ($22B, 2014)

Facebook acquired WhatsApp for approximately $22 billion in October 2014, paying a staggering premium for a messaging app with 600 million users but minimal revenue. At the time, it was the largest acquisition of a venture-backed company in history. Mark Zuckerberg recognized that WhatsApp's explosive growth in mobile messaging — particularly in international markets across Asia, Latin America, and Europe — posed an existential competitive threat to Facebook's core communication business. WhatsApp has since grown to over 2 billion monthly active users worldwide and become the dominant messaging platform in most countries outside the US and China. Meta has gradually monetized the platform through WhatsApp Business and payment features while maintaining end-to-end encryption.

17. Salesforce → Tableau ($15.7B, 2019)

Salesforce acquired Tableau Software for $15.7 billion in August 2019, adding the market's most popular data visualization and business intelligence platform to its enterprise suite. Tableau had built a loyal user base among data analysts with its intuitive drag-and-drop interface for exploring and visualizing data from virtually any source. The acquisition gave Salesforce powerful analytics capabilities that complemented its CRM data, allowing customers to create dashboards and reports combining Salesforce records with external data. Tableau continues to operate as a distinct product within the Salesforce ecosystem and remains one of the leading BI tools alongside Microsoft Power BI and Looker.

18. HPE → Juniper Networks ($14B, 2025)

Hewlett Packard Enterprise completed its $14 billion acquisition of Juniper Networks in July 2025, doubling the size of HPE's networking business. The deal required settling a lawsuit from the U.S. Department of Justice, which had challenged the acquisition on competition grounds before reaching an agreement in June 2025. Juniper, known for its high-performance routers and switches used by major internet service providers and enterprises, brought AI-native networking technology including its Mist AI platform for automated network management. The combined company now offers one of the most comprehensive AI-driven networking portfolios in the enterprise market, competing directly with Cisco and Arista Networks.

19. Take-Two Interactive → Zynga ($12.7B, 2022)

Take-Two Interactive completed its $12.7 billion acquisition of Zynga in May 2022, creating one of the largest gaming companies spanning both console and mobile platforms. Take-Two, the publisher behind Grand Theft Auto, Red Dead Redemption, and NBA 2K, gained Zynga's massive mobile gaming portfolio including FarmVille, Words With Friends, and a suite of mobile casino and casual games. The strategic logic was straightforward: Take-Two dominated the console and PC gaming market but had virtually no mobile presence, while Zynga generated nearly all its revenue from mobile. The deal gave Take-Two access to mobile advertising technology and a player base of hundreds of millions of casual gamers.

20. Microsoft → ZeniMax Media ($7.5B, 2021)

Microsoft completed its $7.5 billion acquisition of ZeniMax Media in March 2021, adding legendary game studio Bethesda Softworks and its franchises — The Elder Scrolls, Fallout, Doom, and Starfield — to Xbox Game Studios. The deal was Microsoft's opening move in its gaming acquisition spree, coming nearly two years before the much larger Activision Blizzard purchase. ZeniMax's portfolio of beloved single-player RPGs and first-person shooters complemented Xbox's existing lineup and gave Game Pass subscribers access to a deep catalog of critically acclaimed titles. Microsoft made the controversial decision to make several formerly multiplatform Bethesda titles, including Starfield, exclusive to Xbox and PC.

Summary Table

Bottom line: 2025 was the biggest year for tech M&A since the Dell–EMC era, with 5 mega-deals closing including Synopsys–Ansys ($35B) and HPE–Juniper ($14B). Cybersecurity consolidation is accelerating — 4 of the top 20 deals involve security companies, with Google–Wiz ($32B) and Palo Alto–CyberArk ($25B) both closing in 2026.

Notable Failed or Pending Deals

Not every mega-deal reaches the finish line. Two of the decade's most ambitious tech acquisitions ultimately fell apart:

Netflix → Warner Bros. Discovery ($82.7B, abandoned 2026). In December 2025, Netflix entered exclusive negotiations to acquire Warner Bros.' streaming and studio business (excluding the Discovery cable networks). Had it closed, the $82.7 billion enterprise value deal would have been the largest tech-media acquisition ever. But in February 2026, Paramount Skydance swooped in with a rival $110.9 billion offer, and Netflix decided not to match — ending the proposed deal.

Adobe → Figma ($20B, abandoned 2023). Adobe announced its $20 billion acquisition of collaborative design tool Figma in September 2022, which would have been the largest SaaS acquisition in history. Antitrust regulators in the US, EU, and UK raised concerns about eliminating competition in the design software market, where Adobe's Creative Cloud (including Photoshop and Illustrator) and Figma's browser-based tool were seen as close competitors. Both companies jointly abandoned the deal in December 2023 after concluding regulatory approval was unlikely, with Adobe paying a $1 billion termination fee.

Key Themes Across the Biggest Tech Buyouts

Several strategic patterns emerge from the decade's largest tech acquisitions and mergers:

Platform consolidation. The biggest deals consistently involve companies acquiring capabilities to build comprehensive platforms rather than point solutions. Salesforce's serial acquisitions (Slack for communication, Tableau for analytics, Informatica for data management) illustrate this strategy — each deal filled a gap in its Customer 360 vision. Similarly, Microsoft's gaming acquisitions (ZeniMax, Activision) built a content moat around Game Pass.

Cybersecurity arms race. Four of the 20 deals involve cybersecurity (Google-Wiz, Palo Alto-CyberArk, Cisco-Splunk, plus Broadcom-VMware's security components). As enterprises move to cloud infrastructure and AI-powered threats grow more sophisticated, comprehensive security platforms have become must-haves rather than nice-to-haves.

Semiconductor consolidation. The chip industry saw massive mergers (Avago-Broadcom, AMD-Xilinx, Synopsys-Ansys) driven by the exponential complexity and cost of advanced chip design. As cutting-edge fabrication moved to 3nm and below, only the largest companies can afford the R&D investment, driving consolidation.

Cloud infrastructure. From Dell-EMC and IBM-Red Hat to Broadcom-VMware, many of the decade's biggest deals reflect the ongoing shift from on-premises computing to hybrid and multi-cloud architectures. Companies have been willing to pay enormous premiums for established cloud infrastructure and tooling.

How Acquisitions Use Data Rooms

Every major acquisition on this list required sophisticated due diligence — financial reviews, legal assessments, IP audits, and regulatory filings involving thousands of confidential documents. Modern M&A transactions rely on virtual data rooms to securely share these materials with buyers, lawyers, and regulators while maintaining access controls and audit trails.

Peony (free, $0) provides AI-native data rooms built for M&A transactions, with features like page-level engagement analytics to track which investors are most active, dynamic watermarks to prevent leaks, screenshot protection for sensitive deal materials, and granular access controls to manage what each party can see throughout the deal process.

Data Room Tools for M&A

Bottom line: Traditional M&A data room providers charge $400+/month with basic analytics. Peony starts free with AI-native features including page-level analytics, watermarking, and screenshot protection — purpose-built for deal execution.

Conclusion

The last decade of tech M&A tells a clear story: platform consolidation, cybersecurity arms race, and semiconductor vertical integration are the three dominant strategic motives. Deal sizes are getting bigger — 5 mega-deals closed in 2025 alone — and regulatory scrutiny is intensifying (Microsoft–Activision took 21 months, Adobe–Figma collapsed entirely). For deal teams navigating this environment, organized data rooms with proper access controls and audit trails aren't optional — they're essential to moving complex transactions through due diligence and regulatory review.

Deal values sourced from SEC filings, company press releases, and verified financial reporting. Last updated February 2026.

Frequently Asked Questions

What is the biggest tech acquisition of all time?

The biggest completed tech acquisition of the last decade is Disney's $71.3 billion purchase of 21st Century Fox in 2019. In pure tech, Broadcom's $69 billion acquisition of VMware (2023) and Microsoft's $68.7 billion Activision Blizzard deal (2023) are the largest. Netflix's proposed $82.7 billion bid for Warner Bros. would have been the largest, but Netflix dropped it in February 2026.

How many tech mega-deals happened in 2025?

2025 was a record year with 5 mega-deals closing: Synopsys–Ansys ($35B), HPE–Juniper Networks ($14B), and Salesforce–Informatica ($8B), plus Google agreeing to buy Wiz ($32B) and Palo Alto Networks agreeing to acquire CyberArk ($25B), both closing in early 2026.

What was the most expensive failed tech acquisition?

Netflix's proposed $82.7 billion bid for Warner Bros. Discovery in December 2025, dropped in February 2026. Adobe's proposed $20 billion acquisition of Figma, abandoned in December 2023 due to antitrust concerns, is another notable failure — Adobe paid a $1 billion termination fee.

Why do big tech companies make large acquisitions?

Strategic reasons include: entering new markets (Microsoft buying Activision for gaming), acquiring technology faster than building it (Google buying Wiz for cloud security), building comprehensive platforms (Salesforce acquiring Slack, Tableau, and Informatica), consolidating fragmented markets (AMD–Xilinx), and eliminating competitive threats (Meta buying WhatsApp).

What role do data rooms play in tech acquisitions?

Every acquisition on this list required a virtual data room for sharing thousands of confidential documents — financials, legal contracts, IP documentation, and regulatory filings — with buyers, lawyers, and regulators. Peony (free, $0) provides AI-native data rooms with page-level analytics, dynamic watermarks, and granular access controls purpose-built for M&A due diligence.

Related Resources

• M&A Virtual Data Room Complete Guide
• Best Data Room Software for M&A
• Role of Data Rooms in M&A Due Diligence
• Due Diligence Cost Breakdown
• What Is a Virtual Data Room?