Martin Marietta Materials, Inc.
Martin Marietta Materials, Inc. (MLM) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · MLM · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
1
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Martin Marietta Materials, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
MLM insider buying and selling by quarter
MLM insider selling · MLM insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · MLM ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
MLM executive sell shares · MLM board member insider trading · MLM insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 29, 2026 | WAJSGRAS DAVID C Director | Award | 69 | $40K | Form 4 |
| May 29, 2026 | Pike Thomas Director | Award | 59 | $34K | Form 4 |
| May 29, 2026 | LYONS MARTIN J Director | Award | 61 | $35K | Form 4 |
| May 14, 2026 | WAJSGRAS DAVID C Director | Award | 313 | — | Form 4 |
| May 14, 2026 | SLAGER DONALD W Director | Award | 313 | — | Form 4 |
| May 14, 2026 | Pike Thomas Director | Award | 313 | — | Form 4 |
| May 14, 2026 | PEREZ LAREE E Director | Award | 313 | — | Form 4 |
| May 14, 2026 | Mack Mary T Director | Award | 313 | — | Form 4 |
| May 14, 2026 | LYONS MARTIN J Director | Award | 313 | — | Form 4 |
| May 14, 2026 | Foxx Anthony R Director | Award | 313 | — | Form 4 |
| May 14, 2026 | DELLY GAYLA J Director | Award | 313 | — | Form 4 |
| May 14, 2026 | Ables Dorothy M Director | Award | 313 | — | Form 4 |
| May 1, 2026 | Samborski Christopher William EVP, COO | Award | 8,101 | — | Form 4 |
| Mar 1, 2026 | Schoen George Frederick EVP, GC and Corp. Secretary | Award | 23,673 | — | Form 4 |
| Mar 1, 2026 | Petro Michael J SVP and CFO | Award | 2,960 | — | Form 4 |
| Mar 1, 2026 | Nye C Howard Chairman, Pres & CEO · Director | Award | 5,919 | — | Form 4 |
| Mar 1, 2026 | McCunniff Donald A. EVP and CHRO | Award | 2,960 | — | Form 4 |
| Feb 27, 2026 | WAJSGRAS DAVID C Director | Award | 56 | $38K | Form 4 |
| Feb 27, 2026 | Pike Thomas Director | Award | 47 | $32K | Form 4 |
| Feb 27, 2026 | KORALESKI JOHN J Director | Award | 69 | $47K | Form 4 |
| Feb 23, 2026 | Petro Michael J SVP and CFO | Other | 211 | $144K | Form 4 |
| Feb 24, 2026 | Petro Michael J SVP and CFO | Other | 94 | $66K | Form 4 |
| Feb 23, 2026 | Nye C Howard Chairman, Pres & CEO · Director | Other | 1,805 | $1.23M⚡ | Form 4 |
| Feb 24, 2026 | Nye C Howard Chairman, Pres & CEO · Director | Other | 1,221 | $851K | Form 4 |
| Feb 23, 2026 | McCunniff Donald A. EVP and CHRO | Other | 192 | $131K | Form 4 |
Schoen George Frederick
EVP, GC and Corp. Secretary
Date
Mar 1
Shares
23,673
Price
—
Value
—
Nye C Howard
Chairman, Pres & CEO · Director
Date
Mar 1
Shares
5,919
Price
—
Value
—
Nye C Howard
Chairman, Pres & CEO · Director
Date
Feb 23
Shares
1,805
Price
$683.60
Value
$1.23M ⚡
Nye C Howard
Chairman, Pres & CEO · Director
Date
Feb 24
Shares
1,221
Price
$696.85
Value
$851K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About MLM insider trading
MLM insider trades
Martin Marietta Materials, Inc. (MLM) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Nye C Howard (Chairman, Pres & CEO · Director), Petro Michael J (SVP and CFO), Flynn Jason Paul (SVP and CIO). Over the past 12 months, 5 insiders have filed transactions with the SEC. MLM insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Martin Marietta Materials, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
MLM insider trading · 5 questionsThe insiders of Martin Marietta Materials, Inc. (MLM) include executives and directors such as Nye C Howard (Chairman, Pres & CEO · Director), Petro Michael J (SVP and CFO), Flynn Jason Paul (SVP and CIO), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026