Martin Marietta director Niemann reports no holdings

MARTIN MARIETTA MATERIALS INC (MLM) reported that Philipp Niemann has become an insider, filing an initial Form 3 as a director.

Rhea-AI Filing Summary

MARTIN MARIETTA MATERIALS INC (MLM) reported that Philipp Niemann has become an insider, filing an initial Form 3 as a director. The filing lists his role but shows no reported share holdings or transactions in Martin Marietta securities at this time.

Key Figures

Buy transactions: 0 Sell transactions: 0 Holding entries: 0

3 metrics

Buy transactions 0 Number of buy transactions reported in the Form 3

Sell transactions 0 Number of sell transactions reported in the Form 3

Holding entries 0 Number of holdings positions reported in the Form 3

Key Terms

Form 3, beneficial ownership, Rule 10b5-1

3 terms

Form 3 regulatory

"filed an initial Form 3 as a director"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficial ownership regulatory

"initial statement of beneficial ownership"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Rule 10b5-1 regulatory

"Rule 10b5-1 indicator is null"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 3 filing for MLM disclose about Philipp Niemann?

The filing shows that Philipp Niemann is a director of MARTIN MARIETTA MATERIALS INC (MLM). It is an initial statement of beneficial ownership and reports no transactions or specific share holdings at this time.

Does Philipp Niemann report any share ownership in MLM on this Form 3?

No. The Form 3 for MARTIN MARIETTA MATERIALS INC (MLM) reports no holdings entries and no transactions, so it does not disclose any specific number of MLM shares currently owned by Philipp Niemann.

Are there any buy or sell transactions reported for MLM in this Form 3?

No. The transaction summary shows 0 buy and 0 sell transactions and no derivative transactions, indicating there were no trades in MLM securities reported with this Form 3.

Does the Form 3 for MLM indicate use of a Rule 10b5-1 trading plan?

No. The document-level Rule 10b5-1 indicator is null, which means the filing does not state that any transactions were made under a Rule 10b5-1 trading plan. There are also no transactions reported.

What insider role does Philipp Niemann have at MARTIN MARIETTA MATERIALS INC (MLM)?

Philipp Niemann is identified as a director of MARTIN MARIETTA MATERIALS INC (MLM). He is not reported as an officer or ten percent owner in this Form 3.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/24/2026 - 04:31 PM EDT Accepted by SEC EDGAR 08/24/2026 - 04:30 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Niemann Philipp

(Last) (First) (Middle)

C/O LHOIST GROUP,

RUE CHARLES DUBOIS 28

(Street)

LIMELETTE BE - 1342

(City) (State) (Zip)

BELGIUM

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/21/2026

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

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Philipp Niemann	08/24/2026
	** 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 5 (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 3: SEC 1473 (03-26)