Mark B. Templeton

Companies

• NutanixBoard member Jul 25, 2023 to now¹
• Arista NetworksBoard member Jun 5, 2017 to now²
• Health Catalyst, Inc.Board member Jun 17, 2020 to Jun 16, 2023³
• EquifaxBoard member Feb 11, 2008 to May 7, 2018⁴
• Keysight TechnologiesBoard member Dec 3, 2015 to Mar 26, 2018⁵
• Citrix SystemsBoard member Jan 24, 2006 to Aug 4, 2015⁶
• Citrix SystemsChief executive officer Jan 24, 2006 to Aug 4, 2015⁶
• Citrix SystemsPresident Jan 24, 2006 to Aug 4, 2015⁶

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Arista Networks ANET128,610 shares⁷$23.5M at $182.85Sep 10, 2026
• Equifax EFX44,330 shares⁸$7.1M at $159.30May 7, 2018
• Nutanix NTNX29,711 shares⁹$2.0M at $67.61Dec 12, 2025
• HCHealth Catalyst, Inc. HCAT39,360 shares¹⁰$66.5K at $1.69Jun 14, 2023

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 8, 2026Sold 300 shares at $199.32 of Arista Networks⁷
• Sep 8, 2026Sold 1,700 shares at $198.44 of Arista Networks⁷
• Sep 8, 2026Sold 1,000 shares at $197.46 of Arista Networks⁷
• Sep 8, 2026Sold 700 shares at $196.20 of Arista Networks⁷
• Sep 8, 2026Sold 1,300 shares at $195.27 of Arista Networks⁷
• Aug 20, 2026Exercised options 538 shares of Arista Networks¹¹
• May 20, 2026Exercised options 971 shares of Arista Networks¹²
• Feb 20, 2026Exercised options 971 shares of Arista Networks¹³
• Dec 12, 2025Granted 4,588 shares of Nutanix⁹
• Nov 20, 2025Exercised options 971 shares of Arista Networks¹⁴
• Aug 20, 2025Exercised options 971 shares of Arista Networks¹⁵
• May 20, 2025Exercised options 844 shares of Arista Networks¹⁶
• Feb 20, 2025Exercised options 844 shares of Arista Networks¹⁷
• Dec 13, 2024Granted 3,646 shares of Nutanix¹⁸
• Nov 20, 2024Exercised options 212 shares of Arista Networks¹⁹
• Aug 20, 2024Exercised options 211 shares of Arista Networks²⁰
• May 20, 2024Exercised options 372 shares of Arista Networks²¹
• Feb 20, 2024Exercised options 373 shares of Arista Networks²²
• Dec 8, 2023Granted 6,088 shares of Nutanix²³
• Nov 20, 2023Exercised options 372 shares of Arista Networks²⁴
• Aug 21, 2023Exercised options 373 shares of Arista Networks²⁵
• Jul 24, 2023Granted 3,389 shares of Nutanix²⁶
• Jun 14, 2023Granted 12,505 shares of Health Catalyst, Inc.¹⁰
• Jun 14, 2023Granted 5,359 shares of Health Catalyst, Inc.¹⁰
• May 22, 2023Exercised options 510 shares of Arista Networks²⁷