Every Form 4 that Martin Mari Mat (MLM) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow MLM and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MLM filings page.
MARTIN MARIETTA MATERIALS INC (symbol: MLM) is the issuer of record for a Form 4 filing submitted to the SEC. Petro Michael J reported acquisition or exercise transactions in this Form 4 filing.
MARTIN MARIETTA MATERIALS INC (MLM) reported that Senior Vice President and Chief Financial Officer Michael J. Petro received an award of 9,331 shares of common stock in the form of restricted stock units on September 1, 2026. Following this grant, he holds 24,321.6026 shares of common stock directly.
The award was granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan and 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. No Rule 10b5-1 trading plan is indicated for this award.
MARTIN MARIETTA MATERIALS INC (MLM) reported that director David C. Wajsgras acquired 78 common stock units on August 31, 2026 under the company’s Common Stock Purchase Plan for Directors. These units are to be settled in stock at a future date, and his direct holdings after the award total 5,106 shares.
MARTIN MARIETTA MATERIALS INC (symbol: MLM) is the issuer of record for a Form 4 filing submitted to the SEC. Pike Thomas reported acquisition or exercise transactions in this Form 4 filing.
MARTIN MARIETTA MATERIALS INC (MLM) reports that director Thomas Pike received a grant of 66 common stock units on August 31, 2026 at a reference value of $518.70 per unit under the company’s Common Stock Purchase Plan for Directors. Following this award, he holds 5,029 units/shares directly, which are to be settled in stock in a lump sum or installments in accordance with his deferred-election terms under the plan.
MARTIN MARIETTA MATERIALS INC (MLM) director Martin J. Lyons reported an acquisition of 68 common stock units on August 31, 2026, as a grant or award under the company’s Common Stock Purchase Plan for Directors. Following this award, he holds a total of 442 shares/units in direct ownership.
The common stock units were accrued under the director stock purchase plan and will be settled in company stock, either in a lump sum or in installments, at future dates tied to when he ceases to be a Non-Employee Director and his elections under the plan. No Rule 10b5-1 trading plan is reported for this transaction.
MARTIN MARIETTA MATERIALS INC (MLM) reported that director Philipp Niemann received a grant of 337 shares of Common Stock on 2026-08-21, classified as a "grant, award, or other acquisition." The shares were acquired at a stated price of $0.0000 per share, bringing Niemann's directly held position to 337 shares.
Martin Marietta Materials SVP and CFO Michael J. Petro reported a Form 4 transaction in which 368.0000 shares of Common Stock were withheld on August 3, 2026 at $542.2700 per share to satisfy an exercise price or tax obligation. After this disposition, he directly owned 14990.6026 shares.
Martin Marietta Materials director David C. Wajsgras received a stock-based compensation award of 69 shares of Common Stock at $581.64 per share. The award was reported as an acquisition under a director compensation plan, not as an open-market purchase or sale.
After this grant, Wajsgras directly holds 5,028 shares of Martin Marietta Materials Common Stock. According to the related plan, these common stock units are deferred and will be settled in stock in a lump sum or installments after he ceases to be a non-employee director or at an elected later date.
Pike Thomas reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Thomas Pike reported a routine equity award. On May 29, 2026, he received a grant of 59 shares of Common Stock at a reference price of $581.64 per share as non-cash compensation.
Following this award, Pike directly holds 4,963 shares of Martin Marietta Materials common stock. According to the company’s Common Stock Purchase Plan for Directors, these common stock units are accrued and will be settled in stock in a lump sum or installments, generally after he ceases to be a Non-Employee Director or on a later elected date within plan limits.
LYONS MARTIN J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Martin J. Lyons received an award of 61 common stock units on May 29, 2026. The units were accrued under the company’s Common Stock Purchase Plan for Directors and are to be settled in company stock in the future.
Settlement will occur in a lump sum or installments over up to 10 years, beginning after he ceases to be a non-employee director or on a later date he previously elected under the plan. Following this grant, he directly holds 374 shares of common stock.
WAJSGRAS DAVID C reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director David C. Wajsgras received a grant of 313 shares of Common Stock on May 14, 2026. The shares were awarded at no cash cost to him, and his directly held stake increased to 4,959 shares following this compensation-related award.
SLAGER DONALD W reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Donald W. Slager received a grant of 313 shares of Common Stock as compensation. The shares were awarded at a stated price of $0.00 per share, indicating a non-cash equity award rather than an open-market purchase. Following this grant, his directly held position increased to 5,064 shares of Martin Marietta Materials Common Stock.
Pike Thomas reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Thomas Pike received a grant of 313 shares of Common Stock. The award was recorded at a price of $0.00 per share, indicating a compensation-related stock grant rather than an open-market purchase. Following this transaction, Pike directly owns 4,904 shares of Martin Marietta Materials Common Stock, reflecting a modest increase in his equity stake aligned with director compensation.
PEREZ LAREE E reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Laree E. Perez received a grant of 313 shares of Common Stock on May 14, 2026 at a stated price of $0.0000 per share, reflecting a compensation-related award rather than an open-market purchase. Following this award, Perez directly holds 15,730 shares of Martin Marietta Materials Common Stock, indicating the transaction is small relative to her overall reported position.
Mack Mary T reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Mary T. Mack received a stock award. On May 14, 2026, she was granted 313 shares of Common Stock in a non-cash transaction at a reported price of $0.0000 per share. After this grant, she directly holds 914 Common Stock shares. This reflects routine equity-based director compensation rather than an open-market purchase or sale.
LYONS MARTIN J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Martin J. Lyons received an equity grant of 313 shares of Common Stock. The award was recorded on May 14, 2026 at a reported price of $0.0000 per share, indicating a compensation-related grant rather than an open-market purchase. Following this grant, Lyons holds 313 shares directly.
MARTIN MARIETTA MATERIALS INC director Anthony R. Foxx received a grant of 313 shares of Common Stock on May 14, 2026. The shares were acquired as a compensation-related award at no stated purchase price. Following this grant, he directly holds a total of 2,615 Common Stock shares.
DELLY GAYLA J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials director Gayla J. Delly received an equity grant of 313 shares of common stock. The award was reported at a price of $0.00 per share on May 14, 2026, and brought her direct holdings to 313 shares following the transaction.
Ables Dorothy M reported acquisition or exercise transactions in this Form 4 filing.
MARTIN MARIETTA MATERIALS INC director Dorothy M. Ables received a grant of 313 shares of Common Stock on May 14, 2026. The award was recorded at a price of $0.00 per share, indicating it is a compensation-related grant rather than an open-market purchase. After this grant, she directly holds 4,221 shares of the company’s common stock.
Samborski Christopher William reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials executive Christopher William Samborski, EVP and COO, reported an equity grant. On May 1, he received 8,101 shares of Common Stock through a restricted stock unit award at a stated price of $0.00 per share.
Following this award, his directly held Common Stock position increased to 21,762 shares. The restricted stock unit award was granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan and vests pro rata in three equal installments on the sixth, seventh, and eighth anniversaries of the award date, subject to continued employment and other conditions in the award agreement.
Schoen George Frederick reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials executive George Frederick Schoen, EVP, General Counsel and Corporate Secretary, received a grant of 23,673 restricted stock units of common stock at no cost. The award was made under the company’s Amended and Restated Stock-Based Award Plan and vests in equal installments over eight years, subject to continued employment and other award conditions. Following this grant, he directly holds 23,673 shares/units.
Petro Michael J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials SVP and CFO Michael J. Petro received an equity award of 2,960 shares of common stock. The shares were granted as a restricted stock unit award at no cash purchase price and increased his directly held common stock to 15,358.6026 shares.
The award was granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan. It vests in three equal installments on the third, fourth, and fifth anniversaries of the award date, subject to continued employment and other conditions in the award agreement.
Nye C Howard reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials Chairman, President and CEO C. Howard Nye received an equity grant tied to company stock. He was awarded 5,919 restricted stock units on common stock at no cash cost, increasing his directly held shares to 176,038.
The award was granted under the company’s Amended and Restated Stock-Based Award Plan and will cliff vest on the third anniversary of the award date, subject to continued employment and other terms in the award agreement. Nye also indirectly holds 70,400 shares through the Charles Howard Nye Irrevocable Trust.
McCunniff Donald A. reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials executive Donald A. McCunniff, EVP and CHRO, received a grant of 2,960 shares of common stock as a restricted stock unit award. The award was granted under the company’s Amended and Restated Stock-Based Award Plan and will cliff vest on the third anniversary of the award date, subject to continued employment and other conditions in the award agreement. Following this award, his directly owned common stock holdings total 7,518 shares.
Martin Marietta Materials director David C. Wajsgras reported an equity award under the company’s director stock plan. On this date, he acquired 56 common stock units at a reference price of $676.57 per share, increasing his directly held common stock to 4,646 shares.
The units were accrued under the Common Stock Purchase Plan for Directors and will be settled in stock in a lump sum or installments over time, generally after he ceases to be a non-employee director, according to his prior election under the plan.
Martin Marietta Materials director Pike Thomas reported an acquisition of company stock through an equity award. On the reported date, he received 47 shares of Martin Marietta Materials common stock at a price of $676.57 per share, classified as a grant or award acquisition.
Following this transaction, his directly held common stock position increased to 4,591 shares. The footnote explains that these common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors and will be settled in stock at future dates elected under that plan.
Martin Marietta Materials director John J. Koraleski reported an automatic equity award. On February 27, 2026, he acquired 69 shares of Common Stock as a grant or award acquisition at a reported price of $676.57 per share under the company’s Common Stock Purchase Plan for Directors.
Following this grant, his directly held Common Stock balance increased to 8,822 shares. The filing also shows indirect ownership of 2,000 shares through SJK HOLDINGS and INVESTMENTS, LLC and 4,900 shares held via the KORALESKI LIVING TRUST, reflecting additional positions associated with the director.
Martin Marietta Materials SVP and CFO Michael J. Petro reported two Form 4 transactions involving company common stock. On February 23, he had a tax-withholding disposition of 211 shares at $683.60 per share, and on February 24 a similar disposition of 94 shares at $696.85 per share. After these transactions, he directly owned 12,398.6026 shares of Martin Marietta Materials common stock.
Martin Marietta Materials Chairman, President & CEO C. Howard Nye reported two tax-withholding dispositions of common stock related to equity compensation. On February 24, he disposed of 1,221 shares at $696.85 per share, and on February 23 he disposed of 1,805 shares at $683.60 per share, both to cover tax liabilities rather than open-market sales. After these transactions, he held 170,119 shares directly, and 70,400 shares were held indirectly through the Charles Howard Nye Irrevocable Trust.
Martin Marietta Materials EVP and CHRO Donald A. McCunniff reported a tax-related share disposition under a benefit transaction. On February 23, 2026, he disposed of 192 shares of common stock at $683.60 per share to satisfy tax withholding obligations. After this transaction, his reported direct holdings totaled 4,558 shares of Martin Marietta Materials common stock.
Martin Marietta Materials senior vice president and CIO Jason Paul Flynn reported two tax-related share dispositions under an equity award. On February 23, 177 shares of common stock were withheld at $683.60 per share, and on February 24, 30 shares were withheld at $696.85 per share. After these transactions, he directly owned 5,494 common shares.
Martin Marietta Materials senior vice president, controller and chief accounting officer Robert J. Cardin reported two tax-related share dispositions. On February 24, he disposed of 103 common shares at $696.85 per share to satisfy tax withholding obligations. On February 23, he similarly disposed of 209 shares at $683.60 per share for tax withholding. Following these transactions, he directly held 12,459 common shares.
Petro Michael J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials reported that Senior Vice President and Chief Financial Officer Michael J. Petro received an equity compensation grant of 931 shares of common stock on February 20, 2026. These shares were awarded as restricted stock units under the company’s Amended and Restated Stock-Based Award Plan and carry no purchase price.
The award vests in equal installments over three years from the grant date, meaning Petro earns the shares gradually over time as he continues in his role. Following this grant, his directly held common stock position increased to 12,703.6026 shares, reflecting ongoing alignment of executive compensation with shareholder interests through stock-based awards.
Martin Marietta Materials’ Chairman, President and CEO C. Howard Nye received equity awards of company common stock. On February 20, 2026, he acquired 2,216 shares at a grant value of $548.75 per share and an additional 6,405 shares at no cost, including a restricted stock unit award that vests in equal installments over three years. Following these grants, he directly owns 173,145 shares, with a further 70,400 shares held indirectly through the Charles Howard Nye Irrevocable Trust.
McCunniff Donald A. reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials executive vice president and chief human resources officer Donald A. McCunniff received an award of 1,277 shares of common stock in the form of restricted stock units. The grant was made at no cash cost to him and was issued under the company’s Amended and Restated Stock-Based Award Plan.
The restricted stock units vest in equal annual installments over three years from the grant date, encouraging longer-term retention and alignment with shareholders. After this grant, McCunniff directly holds 4,750 shares of Martin Marietta common stock.
Martin Marietta Materials senior vice president and CIO Jason Paul Flynn reported stock awards on common shares. On February 20, 2026, he acquired 592 shares at a reported value of $548.75 per share and a further 595 shares at a stated price of $0.00 per share through grants.
Following these transactions, his directly held common stock increased to 5,701 shares. A related footnote explains that one award is a restricted stock unit grant under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan, vesting in equal annual installments over three years from the grant date.
Cardin Robert J reported acquisition or exercise transactions in this Form 4 filing.
Martin Marietta Materials senior vice president, controller and chief accounting officer Robert J. Cardin received an equity award of 658 shares of common stock in the form of restricted stock units. The award was granted at no cash cost to him and will vest in equal installments over three years from the grant date, encouraging longer-term alignment with the company’s performance.
Martin Marietta Materials reported equity compensation activity for SVP and CFO Michael J. Petro. He acquired 1,724 shares of common stock at no cost through the settlement of previously granted performance share units. These units were granted on February 24, 2023, and tied to performance goals measured from January 1, 2023 through December 31, 2025.
On February 17, 2026, the company’s Management Development and Compensation Committee certified the achievement of the applicable performance goals and approved settlement of the grant. On the same date, 758 shares were disposed of at $666.53 per share to cover tax obligations, a tax-withholding disposition rather than an open-market sale. Following these transactions, Petro directly holds 11,772.6026 common shares.
Martin Marietta Materials senior vice president and CIO Jason Paul Flynn reported equity compensation activity involving company common stock. He acquired 222 shares at no cost as a grant and award settlement, increasing his direct holdings as part of long-term incentive compensation.
These 222 shares reflect the settlement of previously granted performance share units tied to goals measured from January 1, 2023 through December 31, 2025, which were certified and approved for settlement on February 17, 2026. In a separate tax-withholding disposition, 107 shares were delivered at a price of $666.53 per share to cover tax obligations, leaving him with 4,514 directly owned shares after the transactions.
Martin Marietta Materials Chairman, President and CEO C. Howard Nye reported equity compensation activity in the form of common stock. He acquired 22,365 shares at $0.00 per share as a grant/award, reflecting settlement of performance share units previously granted under the company’s stock-based award plan.
On the same date, 9,717 shares of common stock were disposed of at $666.53 per share to satisfy tax obligations through a tax-withholding disposition. Following these transactions, Nye directly owned 164,524 common shares, and an additional 70,400 shares were held indirectly through the Charles Howard Nye Irrevocable Trust.
Martin Marietta Materials senior vice president, controller and chief accounting officer Robert J. Cardin reported equity compensation activity in company common stock. He acquired 1,869 shares at no cost through the settlement of previously granted performance share units, increasing his direct holdings before tax withholding.
On the same date, 822 shares were disposed of to satisfy tax obligations related to this award, leaving him with 12,113 directly owned shares afterward. The performance share units were granted in February 2023 and vested based on achievement of performance goals over the 2023–2025 period, with goals certified and settlement approved on February 17, 2026.
Martin Marietta Materials’ top executive reported a small sale of company stock. On December 16, 2025, a transaction coded “F” shows 298 shares of common stock were disposed of at $629.49 per share. After this transaction, the reporting person, who is a Director and also Chairman, President and CEO, directly beneficially owns 151,876 common shares and indirectly beneficially owns 70,400 common shares through the Charles Howard Nye Irrevocable Trust.
Martin Marietta Materials reported an insider stock transaction by an executive serving as EVP and CHRO. On 12/16/2025, the insider disposed of 50 shares of common stock, shown with transaction code F at a price of $629.49. After this transaction, the insider beneficially owned 3,473 shares of Martin Marietta Materials common stock directly.
Martin Marietta Materials reported an insider stock transaction by an officer serving as SVP, Controller & CAO. On 12/16/2025, the insider disposed of 32 shares of common stock in a transaction coded "F," which typically indicates shares withheld to cover taxes on an equity award.
The shares were valued at $629.49 each for this transaction. After the withholding, the officer beneficially owns 11,066 shares of Martin Marietta common stock, held in direct ownership.
Martin Marietta Materials reported an insider stock transaction by an executive vice president. On 12/16/2025, the officer disposed of 66 shares of common stock at $629.49 per share, identified as transaction code F.
After this transaction, the executive vice president directly beneficially owned 62,594 shares of Martin Marietta Materials common stock.
Martin Marietta Materials senior vice president and chief information officer reported an insider stock transaction. On 12/01/2025, the officer disposed of 123 shares of common stock at a price of $615.25 per share, as shown with transaction code "F". After this transaction, the officer beneficially owns 4,399 shares, held directly.
Martin Marietta Materials, Inc. executive vice president reported two transactions in company common stock. On 12/01/2025, the reporting person disposed of 420 shares of common stock in a transaction coded "F" at a price of $615.25 per share, leaving 63,148 shares beneficially owned directly. On 12/02/2025, the reporting person disposed of a further 488 shares in a transaction coded "G" at a reported price of $0, resulting in 62,660 shares of common stock beneficially owned directly after the transactions.
Martin Marietta Materials director reports routine stock accrual. A company director of Martin Marietta Materials, Inc. acquired 61 shares of common stock on 11/28/2025 at a price of $623.24 per share under the company’s Common Stock Purchase Plan for Directors. After this transaction, the director beneficially owns 4,590 shares of common stock in direct form.
The 61 shares were accrued as common stock units under the director stock purchase plan and will be settled in Martin Marietta stock. Settlement can occur in a lump sum or installments over up to 10 years after the individual ceases to be a non-employee director, based on the timing elected under the plan. This filing reflects ongoing director compensation in equity rather than an open-market purchase or sale.
Martin Marietta Materials director reports small stock acquisition
A director of Martin Marietta Materials, Inc. acquired 51 shares of common stock on 11/28/2025 at a price of $623.24 per share, bringing the director’s directly held position to 4,544 shares. The filing notes that common stock units were accrued under the company’s Common Stock Purchase Plan for Directors and are to be settled in stock in a lump sum or in installments over a period that may extend up to 10 years, depending on when the individual ceases to be a non-employee director and on elections made under the plan.
Martin Marietta Materials director reports acquisition of stock units under board plan. A company director acquired 75 common stock units of Martin Marietta Materials, Inc. on 11/28/2025 at a price of $623.24 per share. Following this transaction, the director beneficially owns 8,753 shares directly, plus 2,000 shares held through SJK Holdings and Investments, LLC and 4,900 shares held through the JJ Koraleski and SF Koraleski Co-Trustee Koraleski Living Trust.
The 75 common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors and will be settled in stock in a lump sum or installments over up to 10 years after the individual ceases to be a Non-Employee Director or on a later date elected under the plan.