Latest filingSep 02, 2026Most recent Form 4
MLM
MARTIN MARIETTA MATERIALS INC
NYSEMaterialsMining & Quarrying of Nonmetallic Minerals (No Fuels)
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$00 sells
Net open-market+$04 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period4transactions
- A · Grants / awards · dominant4 · 100%
Activity by reported role
A joint filing can contribute to multiple roles4transactions
- Director · dominant3 · 75%
- SC1 · 25%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeLyons Martin JCommon Stock · Direct
442Aug 31, 2026
Pike ThomasCommon Stock · Direct
5,029Aug 31, 2026
Wajsgras David CCommon Stock · Direct
5,106Aug 31, 2026
Petro Michael JCommon Stock · Direct
24,321.6026Sep 01, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
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Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
No filing-only signal badges matched this period.
MLM transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
No transactions match your filtersOnce the backend ingests and parses SEC filings, they will appear here. Try removing a filter or picking a wider date range. | ||||||||||
MARTIN MARIETTA MATERIALS INC Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at MARTIN MARIETTA MATERIALS INC?
Petro Michael J, WAJSGRAS DAVID C, Pike Thomas, LYONS MARTIN J.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
No code-P purchases or code-S sales were reported in the selected period.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.