Director Donald Slager receives 313-share grant in Martin Marietta (MLM)

Rhea-AI Filing Summary

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.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider SLAGER DONALD W

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	313	$0.00	--

Holdings After Transaction: Common Stock — 5,064 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 313 shares Grant price: $0.00 per share Shares held after grant: 5,064 shares +2 more

5 metrics

Shares granted 313 shares Equity grant to director Donald W. Slager

Grant price $0.00 per share Stated price for 313-share award

Shares held after grant 5,064 shares Total direct holdings after transaction

Buy transactions 0 No open-market purchases reported

Sell transactions 0 No share sales reported

Key Terms

Grant, award, or other acquisition, Common Stock, direct ownership, Form 4

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

direct ownership financial

"ownership_type: direct"

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SLAGER DONALD W

(Last) (First) (Middle)

4123 PARKLAKE AVENUE

(Street)

RALEIGH NORTH CAROLINA 27612

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MARTIN MARIETTA MATERIALS INC [ MLM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/14/2026		A		313	A	$0	5,064	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Sara W. Brown, attorney-in-fact	05/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Martin Marietta Materials (MLM) report for Donald W. Slager?

Martin Marietta Materials reported that director Donald W. Slager received a grant of 313 shares of Common Stock. This was a compensation-related award at a stated price of $0.00 per share, rather than an open-market purchase, increasing his direct holdings.

How many Martin Marietta Materials (MLM) shares were granted to Donald W. Slager?

Donald W. Slager was granted 313 shares of Martin Marietta Materials Common Stock. The transaction was coded as a grant, award, or other acquisition, reflecting equity compensation and not a market trade, and modestly increased his overall ownership position in the company.

What is Donald W. Slager’s total direct ownership in Martin Marietta Materials (MLM) after this Form 4?

After the reported grant, Donald W. Slager directly holds 5,064 shares of Martin Marietta Materials Common Stock. This total includes the newly awarded 313 shares, showing his updated direct equity stake as a company director based on this filing.

Was the Martin Marietta Materials (MLM) insider transaction an open-market buy or a grant?

The transaction was a grant, not an open-market buy. It is coded as a “Grant, award, or other acquisition,” with 313 shares of Common Stock awarded at a stated price of $0.00 per share, indicating standard equity compensation to the director.

Does the Martin Marietta Materials (MLM) Form 4 show any insider share sales?

The Form 4 does not report any share sales. It shows one acquisition transaction where director Donald W. Slager received 313 shares of Common Stock as a grant, increasing his direct holdings to 5,064 shares, with no dispositions disclosed in this filing.