Mark J. Barrenechea Appointed to SentinelOne Board of Directors

Key Terms

ai-native cybersecurity technical

AI-native cybersecurity is an approach that builds security tools and defenses around artificial intelligence from the ground up, using machine learning to detect threats, adapt to new attacks, and automate responses. For investors, it matters because these systems can reduce breach risk and operating costs while scaling faster than traditional tools—like a self-driving guard that learns new break-in tactics in real time—potentially protecting revenue, reputation, and valuation.

autonomous cybersecurity technical

Autonomous cybersecurity is security software and systems that detect, respond to, and fix cyber threats with minimal human intervention, using automated decision-making and machine learning. For investors it matters because these systems can reduce breach costs and downtime, scale protection as a company grows, and signal a lower operational risk profile—similar to installing a smart, self-driving security guard that keeps watch 24/7 and acts when danger appears.

audit committee financial

A company's audit committee is a small group of board members who act like independent inspectors for the firm's finances, overseeing how financial reports are prepared, monitoring internal controls, and managing the relationship with external auditors. Investors care because a strong audit committee reduces the risk of accounting errors, fraud, or misleading statements, making financial statements more trustworthy and helping protect shareholder value.

Veteran Technology Leader Bolsters Innovation and Executive Depth on SentinelOne Board

MOUNTAIN VIEW, Calif.--(BUSINESS WIRE)-- SentinelOne (NYSE: S), the leader in AI-native cybersecurity, today announced the appointment of Mark J. Barrenechea to its board of directors.

Mr. Barrenechea brings over four decades of leadership and innovation experience to SentinelOne, having served as CEO, CTO and Director for multiple technology leaders. He previously served as the CEO, CTO and Vice Chairman of the board of OpenText, the CEO and President of SGI and Rackable Systems, and the EVP and CTO of Computer Associates. Mr. Barrenechea recently served as a director on the boards of OpenText and Avery Dennison, and currently serves as a director and chair of the audit committee on the board of Dick’s Sporting Goods.

“Mark has a strong track record of guiding and scaling innovative companies through their growth from category disruptors to market leaders,” said Tomer Weingarten, CEO, SentinelOne. “Mark’s experience leading scaled, category-defining technology companies will be both a great complement to our board and a great asset to our leadership team as SentinelOne enters its next chapter of growth.”

“In the AI era, SentinelOne is a company that has been years ahead of its peers and the industry – one that from the start believed that autonomous cybersecurity was the best way to help human defenders maintain an advantage over increasingly sophisticated threats,” said Barrenechea. “With AI rapidly emerging as a transformative force and new attack surface, SentinelOne is well positioned to define and dominate the emerging AI security category. It’s a great opportunity to work with Tomer and the brightest AI and security professionals to help organizations protect their people, data and infrastructure.”

About SentinelOne

SentinelOne is a leading AI-powered cybersecurity platform. Built on the first unified Data Lake, SentinelOne empowers the world to run securely by creating intelligent, data-driven systems that think for themselves, stay ahead of complexity and risk, and evolve on their own. Leading organizations—including Fortune 10, Fortune 500, and Global 2000 companies, as well as prominent governments—trust SentinelOne to Secure Tomorrow™. Learn more at sentinelone.com.

Category: Investors

View source version on businesswire.com: https://www.businesswire.com/news/home/20251203787683/en/

Investor Contact:

Saad Nazir

investors@sentinelone.com

Media Contact:

Regan Schiappa

press@sentinelone.com

Source: SentinelOne