Dirk A. Kempthorne

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
Philadelphia, PA
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ Sara Ponessa, as attorney in fact for Dirk A. Kempthorne
Source: Latest parsed Forms 3/4/5 signature
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Dirk A. Kempthorne

Form 4 holding Director

FMC CORP

Security class
Common Stock
Shares / value
56,912
Estimated value
$980,024
Report date
16 Apr 2026
Price
$17.22
Ownership
Direct
Form 4 holding Director

OLYMPIC STEEL INC

Security class
Restricted Share Units
Shares / value
0
Estimated value
Report date
13 Feb 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by Dirk A. Kempthorne

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