Insider Trading & Ownership of Dirk A. Kempthorne

Location
Philadelphia, PA
Summary
The estimated net worth of Dirk A. Kempthorne is at least $1,318,171 dollars as of 17 Apr 2026. Dirk A. Kempthorne is the Director of FMC CORP and owns shares of FMC CORP (FMC) stock worth about $980K. Dirk A. Kempthorne is the Director of ROBERT HALF INC. and owns shares of ROBERT HALF INC. (RHI) stock worth about $338.1K.
Signature
/s/ Sara Ponessa, as attorney in fact for Dirk A. Kempthorne
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Quick Takeaways

  • Dirk A. Kempthorne has 3 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $1,318,171.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: FMC CORP ($980,024).
  • 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 Dirk A. Kempthorne

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
FMC FMC CORP Director $980,024 16 Apr 2026
RHI ROBERT HALF INC. Director $338,147 -$187,812 -36% 28 Oct 2025
ZEUS OLYMPIC STEEL INC Director $0 13 Feb 2026

Insider Transactions Reported by Dirk A. Kempthorne:

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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