Insider Trading & Ownership of Rosemary L. Klein

Location
St. Louis, MO
Summary
The estimated net worth of Rosemary L. Klein is at least $9,942,848 dollars as of 20 Mar 2026. Rosemary L. Klein is the SVP, CLO & Corp. Sec. of Core Natural Resources, Inc. and owns shares of Core Natural Resources, Inc. (CNR) stock worth about $5.94M. Rosemary L. Klein is the Sr. VP, Gen Counsel and Secary of ARCH RESOURCES, INC. and owns shares of ARCH RESOURCES, INC. stock worth about $4M.
Signature
/s/ Rosemary L. Klein
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Quick Takeaways

  • Rosemary L. Klein has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $9,942,848.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Core Natural Resources, Inc. ($5,937,970).
  • Past-year value change for that position: -$1,603,100.

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 Rosemary L. Klein

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
CNR Core Natural Resources, Inc. SVP, CLO & Corp. Sec. $5,937,970 -$1,603,100 -21% 19 Mar 2026
ARCH ARCH RESOURCES, INC. Sr. VP, Gen Counsel and Secary $4,004,878 14 Jan 2025

Insider Transactions Reported by Rosemary L. Klein:

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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