Insider Trading & Ownership of Mark B. Templeton

Location
Fort Lauderdale, FL
Summary
The estimated net worth of Mark B. Templeton is at least $19,567,645 dollars as of 24 Feb 2026. Mark B. Templeton is the Director of Arista Networks, Inc. and owns shares of Arista Networks, Inc. (ANET) stock worth about $17.4M. Mark B. Templeton is the Director of Nutanix, Inc. and owns shares of Nutanix, Inc. (NTNX) stock worth about $1.75M. Mark B. Templeton is the Director of Health Catalyst, Inc. and owns shares of Health Catalyst, Inc. (HCAT) stock worth about $426.2K.
Signature
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Mark Templeton
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Quick Takeaways

  • Mark B. Templeton has 3 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $19,567,645.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Arista Networks, Inc. ($17,395,375).
  • Past-year value change for that position: .

Why This Matters

  • This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
  • You can cross-check role, issuer, and filing chronology directly against the SEC source.

Source Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Mark B. Templeton

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
ANET Arista Networks, Inc. Director $17,395,375 20 Feb 2026
NTNX Nutanix, Inc. Director $1,746,115 12 Dec 2025
HCAT Health Catalyst, Inc. Director $426,155 14 Jun 2023

Insider Transactions Reported by Mark B. Templeton:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
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