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Insider Trading & Ownership of David W. Mason

Location
Boston, MA
Summary
The estimated net worth of David W. Mason is at least $5,433,370 dollars as of 09 Mar 2026. David W. Mason is the Chief Legal Officer of SEMrush Holdings, Inc. and owns shares of SEMrush Holdings, Inc. (SEMR) stock worth about $3.24M. David W. Mason is the General Counsel and Secretary of EverQuote, Inc. and owns shares of EverQuote, Inc. (EVER) stock worth about $2.2M.
Signature
/s/ David Mason
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Quick Takeaways

  • David W. Mason has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $5,433,370.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: SEMrush Holdings, Inc. ($3,235,988).
  • Past-year value change for that position: -$1,236,873.

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 David W. Mason

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
SEMR SEMrush Holdings, Inc. Chief Legal Officer $3,235,988 -$1,236,873 -28% 05 Mar 2026
EVER EverQuote, Inc. General Counsel and Secretary $2,197,382 03 Oct 2022

Insider Transactions Reported by David W. Mason:

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.