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  • Insider Ownership

Insider Trading & Ownership of Robert P. Ragusa

Location
Menlo Park, CA
Summary
The estimated net worth of Robert P. Ragusa is at least $26,881,644 dollars as of 09 Apr 2026. Robert P. Ragusa is the Chief Executive Officer, Director of GRAIL, Inc. and owns shares of GRAIL, Inc. (GRAL) stock worth about $25.89M. Robert P. Ragusa is the Director of Twist Bioscience Corp and owns shares of Twist Bioscience Corp (TWST) stock worth about $995.3K.
Signature
/s/Donald Lang, as Attorney-in-Fact for Robert Ragusa
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Quick Takeaways

  • Robert P. Ragusa has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $26,881,644.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: GRAIL, Inc. ($25,886,368).
  • Past-year value change for that position: -$15,954,351.

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 Robert P. Ragusa

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
GRAL GRAIL, Inc. Chief Executive Officer, Director $25,886,368 -$15,954,351 -38% 08 Apr 2026
TWST Twist Bioscience Corp Director $995,276 05 Feb 2026

Insider Transactions Reported by Robert P. Ragusa:

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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