# EDGAR Filing Document

**Accession Number:** 0000936468
**File Stem:** 0000936468-26-000006
**Filing Date:** 2026-3
**Character Count:** 4257
**Document Hash:** e1d3b3343056853f1586b448292c0677
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000936468-26-000006.hdr.sgml**: 20260326

**ACCESSION NUMBER**: 0000936468-26-000006

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 6

**FILED AS OF DATE**: 20260326

**DATE AS OF CHANGE**: 20260326

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LOCKHEED MARTIN CORP
- **CENTRAL INDEX KEY:** 0000936468
- **STANDARD INDUSTRIAL CLASSIFICATION:** GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 521893632
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-11437
- **FILM NUMBER:** 26794402

**BUSINESS ADDRESS:**
- **STREET 1:** 6801 ROCKLEDGE DR
- **CITY:** BETHESDA
- **STATE:** MD
- **ZIP:** 20817
- **BUSINESS PHONE:** 3018976000

**MAIL ADDRESS:**
- **STREET 1:** 6801 ROCKLEDGE DRIVE
- **CITY:** BETHESDA
- **STATE:** MD
- **ZIP:** 20817

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 14A**

**Proxy Statement Pursuant to Section 14(a) of the**

**Securities Exchange Act of 1934 <br>(Amendment No.)**

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| | |
|:---|:---|
| ☑ | Filed by the Registrant |
| ☐ | Filed by a Party other than the Registrant |
| Check the appropriate box: | Check the appropriate box: |
| ☐ | Preliminary Proxy Statement |
| ☐ | **Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** |
| ☐ | Definitive Proxy Statement |
| ☑ | Definitive Additional Materials |
| ☐ | Soliciting Material under § 240.14a-12 |

---

![lm-logo_blue2.jpg](lm-logo_blue2.jpg)

**Lockheed Martin Corporation**

(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

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| | |
|:---|:---|
| Payment of Filing Fee (Check all boxes that apply): | Payment of Filing Fee (Check all boxes that apply): |
| ☑ | No fee required |
| ☐ | Fee paid previously with preliminary materials |
| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |

---

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![a048woc_lockheedxnoticex03b.jpg](a048woc_lockheedxnoticex03b.jpg)

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![a048woc_lockheedxnoticex03c.jpg](a048woc_lockheedxnoticex03c.jpg)

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![oconnoremployeeemla.jpg](oconnoremployeeemla.jpg)

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Email to Employee Plan Participants (to be sent 03/31/2026)

Email subject:

Lockheed Martin 2026 Annual Meeting – Please Vote Your Shares

Important Notice Regarding the Availability of Proxy Materials for the Lockheed Martin Corporation Stockholder Meeting to be Held on May 12, 2026.

You are receiving this email because you own shares of Lockheed Martin Corporation in your Lockheed Martin Corporation savings plan.

You may now conveniently access Lockheed Martin's annual report and proxy statement and vote online for Lockheed Martin's Annual Stockholder Meeting at www.investorvote.com/LMT. We encourage you to access and review all of the important information contained in the proxy materials before voting.

How to Vote:

Online: Go to: www.investorvote.com/LMT, enter the Proxy Login Control Number below (without any spaces) and follow the on-screen instructions.

By Phone: Call 1-800-652-VOTE (8683) or 1-781-575-2300 and following the prompts (you must have your Proxy Login Control Number below available).

Proxy Login Control Number: [[SingleControlNumber]]

Voting deadline: Thursday, May 7, 2026, at 11:59 p.m. Eastern Daylight Time

To obtain a hard copy of the proxy materials (free of charge) call 1-866-641-4276.

Please note: you may receive multiple proxy packages and voting instructions (electronically and/or by mail). These materials may not be duplicates as you may hold shares of Lockheed Martin stock in multiple accounts. Please be sure to vote all of your shares in each of your accounts in accordance with the directions on the proxy card(s) and/or voting instruction form(s) you receive.

Your vote matters – please cast your vote today.

Computershare Trust Company, N.A.

Independent Registrar and Transfer Agent for Lockheed Martin Corporation

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![computershareregisteredemla.jpg](computershareregisteredemla.jpg)

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