Insider Trading & Ownership of Stelios Papadopoulos

Location
Alameda, CA
Summary
The estimated net worth of Stelios Papadopoulos is at least $61,644,179 dollars as of 09 Apr 2026. Stelios Papadopoulos is the Director of EXELIXIS, INC. and owns shares of EXELIXIS, INC. (EXEL) stock worth about $51.79M. Stelios Papadopoulos is the Director of BIOGEN INC. and owns shares of BIOGEN INC. (BIIB) stock worth about $9.5M. Stelios Papadopoulos is the Director of Ovid Therapeutics Inc. and owns shares of Ovid Therapeutics Inc. (OVID) stock worth about $354.7K.
Signature
/s/ Jeffrey Rona, Attorney-in-Fact
All Insider Reports
All Insider Reports

Follow Filing Activity

Follow Stelios Papadopoulos and return when a new Insider Trading filing changes the record on this page.

This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.

Sign up to save research and follow filings

Quick Takeaways

  • Stelios Papadopoulos has 4 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $61,644,179.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: EXELIXIS, INC. ($51,790,879).
  • Past-year value change for that position: -$5,974,130.

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 Stelios Papadopoulos

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
EXEL EXELIXIS, INC. Director $51,790,879 -$5,974,130 -10% 12 Nov 2025
BIIB BIOGEN INC. Director $9,498,648 15 Jun 2022
OVID Ovid Therapeutics Inc. Director $354,652 07 Apr 2026
RGLS Regulus Therapeutics Inc. Director $0 25 Jun 2025

Insider Transactions Reported by Stelios Papadopoulos:

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.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Here you can make detailed settings or revoke your consent (in part if necessary) with effect for the future. For further information, please refer to our Privacy Policy .