Insider Trading & Ownership of Sandra Horning

Location
Foster City, CA
Summary
The estimated net worth of Sandra Horning is at least $6,259,896 dollars as of 04 May 2026. Sandra Horning is the Director of Revolution Medicines, Inc. and owns shares of Revolution Medicines, Inc. (RVMD) stock worth about $3.82M. Sandra Horning is the Director of GILEAD SCIENCES, INC. and owns shares of GILEAD SCIENCES, INC. (GILD) stock worth about $1.39M. Sandra Horning is the Director of Moderna, Inc. and owns shares of Moderna, Inc. (MRNA) stock worth about $1.06M.
Signature
/s/ James Dillon, as Attorney-in-Fact
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Quick Takeaways

  • Sandra Horning has 5 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $6,259,896.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Revolution Medicines, Inc. ($3,818,535).
  • 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 Sandra Horning

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
RVMD, RVMDW Revolution Medicines, Inc. Director $3,818,535 26 Jun 2025
GILD GILEAD SCIENCES, INC. Director $1,386,226 30 Apr 2026
MRNA Moderna, Inc. Director $1,055,135 30 Apr 2026
EQRX EQRx, Inc. Director 09 Nov 2023
OLMA Olema Pharmaceuticals, Inc. Director 11 Jun 2025

Insider Transactions Reported by Sandra Horning:

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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