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Cisco Acquires Splunk

Executive Summary

Cisco has announced its intention to acquire Splunk for $28 billion in an all-cash deal, marking its largest acquisition to date.

The move aims to reshape the security information and event management (SIEM) landscape.

Cisco and Splunk are combining their capabilities to enhance digital resiliency and move organizations from threat detection and response to threat prediction and prevention.

While industry watchers were surprised by the announcement, analysts see potential for Cisco to become a dominant player in the next-generation SIEM (NG-SIEM) market.

However, there are concerns about Cisco’s track record with large acquisitions and the need for Splunk to continue delivering its SIEM and observability offerings.

About Splunk

Splunk is well-regarded for its expertise in AI, security, and observability, providing premium Security Information and Event Management (SIEM) solutions. Its platform is used globally to manage security events, and its software is employed by a wide range of customers, including universities and enterprises, for data analysis and insights.

Headquartered in San Francisco, California, Splunk was founded in 2003. Splunk offers user-friendly software for searching, monitoring, and analyzing machine-generated data. The company achieved profitability in 2009 and and went public in 2012, trading on NASDAQ as SPLK.

About the Acquisition

The acquisition of Splunk is part of Cisco’s strategy to securely connect everything and make organizations more secure and resilient. Cisco plans to leverage Splunk’s capabilities to create an end-to-end data platform and enhance its cybersecurity protection portfolio.

Cisco’s CEO, Chuck Robbins, believes that the combined capabilities of the two companies will drive the next generation of AI-enabled security and observability.

The deal involves Cisco acquiring Splunk for $28 billion in an all-cash agreement. Cisco will be purchasing Splunk shares at $157 each, representing a 31% premium over Splunk’s closing stock price. The transaction is expected to close in the third quarter of 2024, pending regulatory and shareholder approvals.

It is set to make Cisco and Splunk one of the world’s largest software companies, focusing on AI, security, and observability.

Potential Impact to Splunk Users

The acquisition presents both opportunities and concerns for Splunk users.


  • Access to Cisco’s resources for innovation and development.
  • The potential for stronger security integrations, enhancing threat detection and response.

Possible Concerns:

  • Potential changes in the quality and flexibility of Splunk’s offerings.
  • Vendor lock-in if Cisco’s technologies become tightly integrated.
  • Degregation of Splunk’s long-term product roadmap and support for third-party integrations.



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