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  • Insider Ownership

Insider Trading & Ownership of Marcio Souza

Location
South Plainfield, NJ
Summary
The estimated net worth of Marcio Souza is at least $23,009,143 dollars as of 12 Jan 2026. Marcio Souza is the Chief Executive Officer, Director of Praxis Precision Medicines, Inc. and owns shares of Praxis Precision Medicines, Inc. (PRAX) stock worth about $22.95M. Marcio Souza is the Director of Aeglea BioTherapeutics, Inc. and owns shares of Spyre Therapeutics, Inc. (SYRE) stock worth about $63.9K.
Signature
/s/ Alex Nemiroff, as Attorney-in-Fact
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Quick Takeaways

  • Marcio Souza has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $23,009,143.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Praxis Precision Medicines, Inc. ($22,945,243).
  • 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.

Official SEC Source

Filed on Form 4

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

See Original Filing

Ownership of Marcio Souza

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
PRAX Praxis Precision Medicines, Inc. Chief Executive Officer, Director $22,945,243 08 Jan 2026
SYRE Aeglea BioTherapeutics, Inc. Director $63,900 25 Aug 2022

Insider Transactions Reported by Marcio Souza:

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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