person · Reporting owner
Samborski Christopher William
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MARTIN MARIETTA MATERIALS INCMLM · Entity 587 | EVP, COO | May 01, 2026 | May 05, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
MARTIN MARIETTA MATERIALS INC
Report date May 01, 2026 · Filed May 05, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 21,762 |
Reported balance
After 2026-05-01 transaction · row 1
1 source rowRow 1 · 2026-05-01 · Grant · Acquired 8,101 · Balance 21,762 F1: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eighth anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement. |
Filing footnotes · ownership attribution and instrument terms
F1: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eighth anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 01, 2026 Filed May 5, 2026 20:22 UTC | MARTIN MARIETTA MATERIALS INC MLM · Entity 587 | GrantCommon Stock | 8,101 | $0.00 | $0.00 |
DisclosureSEC source: 0000916076-26-000051 · form4.xml · nonDerivative · entry 1 Samborski Christopher William · CIK 0002131980 · EVP, COO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,762 F1 · shares: Restricted stock unit award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, which award vests pro rata in three equal installments on the sixth, seventh and eighth anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.