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Elliott and Siris explore $2 billion-plus Gigamon sale, sources say

Reported by Reuters
Oct 7, 2026· 2 min read
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Key Takeaways
  • • Elliott Investment Management and Siris are exploring a sale of Gigamon that could value the infrastructure software provider at more than $2 billion, according to people familiar with the matter (Reuters, Oct 7, 2026).
  • • Bank of America and Perella Weinberg Partners have been hired to advise on the process, which is in its early stages.
  • • Gigamon generates more than $400 million in annual recurring revenue and roughly $170 million in EBITDA, per the sources cited.
  • • Elliott took Gigamon private in 2017 in a deal valuing the company at about $1.6 billion; Siris acquired a minority stake in 2024, so a sale would yield a substantial return on the original entry valuation.
  • • Private equity firms and strategic buyers in network monitoring, cybersecurity and cloud infrastructure management are the likely bidder pools.
Summary
Elliott Investment Management and Siris are exploring a sale of Gigamon that could value the Santa Clara, California-based infrastructure software provider at more than $2 billion, according to people familiar with the matter, as reported by Reuters on October 7, 2026. The firms have engaged Bank of America and Perella Weinberg Partners to advise on the process, which remains at an early stage. The sources requested anonymity because the deliberations are confidential. Neither Gigamon, Siris, Elliott nor Bank of America commented, and Perella Weinberg did not respond to a request for comment.

Gigamon provides software that helps companies monitor network traffic and detect security threats. Founded in 2004, the company serves more than 4,000 customers globally, including banks, healthcare providers and government agencies, according to its website. The sources said Gigamon generated more than $400 million in annual recurring revenue and around $170 million in earnings before interest, taxes, depreciation and amortization (EBITDA).

Elliott acquired Gigamon in 2017 through a take-private transaction that valued the company at about $1.6 billion. Private equity firm Siris bought a minority stake in 2024. A sale at the reported level would represent a meaningful increase on the 2017 valuation, though the report does not specify how ownership would be divided among the current investors.

According to the sources, a sale process could attract private equity firms as well as strategic buyers seeking to expand their capabilities in network monitoring, cybersecurity and cloud infrastructure management. The potential transaction comes as investors continue to show strong interest in software companies that supply critical infrastructure tools underpinning cloud computing, cybersecurity and artificial intelligence deployments.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Reuters Elliott and Siris explore $2 billion-plus Gigamon sale, sources say