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BURRITT DAVID B

Disclosed activity across 3 companies

Tapewire entity
13159
SEC CIK
0001204586

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CATERPILLAR INCCAT · Entity 2808V.P./Chief Financial OfficerMay 28, 2010June 01, 2010
LOCKHEED MARTIN CORPLMT · Entity 2882DirectorSeptember 30, 2026October 02, 2026
UNITED STATES STEEL CORPX · Entity 78343Director · Pres. & CEOJune 18, 2025June 18, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CATERPILLAR INC

Report date May 28, 2010 · Filed June 01, 2010

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Phantom Stock UnitsSEC Table II · derivative / convertible securityDirect14,022 Reported balance After 2010-05-28 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2010-05-28 · Grant · Acquired 73 · Balance 14,022

F3: Security converts to common stock on a one-for-one basis.

F4: The reported phantom stock units were acquired under Caterpillar Inc.'s deferred employee investment plan and will be settled upon the reporting person's retirement or separation from service.

CommonSEC Table I · non-derivativeDirect25,723 Reported balance Holding disclosure · report date 2010-05-28 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 25,723

F1: This amount includes 13,849 shares in 401K and 374 shares in dividend reinvestment.

CommonSEC Table I · non-derivativeIndirectOwned by Wife13,314 Reported balance Holding disclosure · report date 2010-05-28 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 13,314

F2: Reporting person disclaims beneficial ownership.

Filing footnotes · ownership attribution and instrument terms

F1: This amount includes 13,849 shares in 401K and 374 shares in dividend reinvestment.

F2: Reporting person disclaims beneficial ownership.

F3: Security converts to common stock on a one-for-one basis.

F4: The reported phantom stock units were acquired under Caterpillar Inc.'s deferred employee investment plan and will be settled upon the reporting person's retirement or separation from service.

LOCKHEED MARTIN CORP

Report date September 30, 2026 · Filed October 02, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Phantom Stock UnitsSEC Table II · derivative / convertible securityIndirectLockheed Martin Directors Deferred Comp Plan11,632.9162 Reported balance After 2026-09-30 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-09-30 · Grant · Acquired 83.456 · Balance 11,632.9162

F1: Phantom stock units convert to common stock on a one-for-one basis.

F2: The information pertains to phantom stock units acquired at $509.25 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3: Holdings as of reportable transaction date include additional acquisitions through dividend reinvestment.

Phantom Stock UnitsSEC Table II · derivative / convertible securityIndirectLockheed Martin Directors Equity Plan14,278.1072 Reported balance Holding disclosure · report date 2026-09-30 · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · Balance 14,278.1072

F1: Phantom stock units convert to common stock on a one-for-one basis.

F4: The information pertains to previously acquired stock units under the Lockheed Martin Corporation Amended and Restated Directors Equity Plan exempt under Section 16(b). Settlement in cash or stock (as elected by the director) will occur upon the reporting person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have payment of awards granted on or after January 1, 2018 (together with any dividend equivalents thereon) made on the first business day of April following vesting of the award.

F3: Holdings as of reportable transaction date include additional acquisitions through dividend reinvestment.

Filing footnotes · ownership attribution and instrument terms

F1: Phantom stock units convert to common stock on a one-for-one basis.

F2: The information pertains to phantom stock units acquired at $509.25 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3: Holdings as of reportable transaction date include additional acquisitions through dividend reinvestment.

F4: The information pertains to previously acquired stock units under the Lockheed Martin Corporation Amended and Restated Directors Equity Plan exempt under Section 16(b). Settlement in cash or stock (as elected by the director) will occur upon the reporting person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have payment of awards granted on or after January 1, 2018 (together with any dividend equivalents thereon) made on the first business day of April following vesting of the award.

UNITED STATES STEEL CORP

Report date June 18, 2025 · Filed June 18, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
COMMON STOCKSEC Table I · non-derivativeDirect0 Ending reported balance After 2025-06-18 transaction · row 3
3 source rows · reconciled sequence

Row 1 · 2025-06-18 · Disposition to issuer · Disposed 1,196,647 · Balance 0

F2: Reflects (i) shares of common stock of the Company, par value $1.00 (the "Shares"), held directly by the reporting person, (ii) restricted stock units previously granted to the reporting person, and (iii) ROCE-based and TSR-based performance stock units previously granted to the reporting person that relate to performance periods that were completed prior to the Effective Time that, in each case, as of immediately prior to the Effective Time, were converted into the right to receive $55 in cash per Share (the "Per Share Merger Consideration"), less any applicable tax withholdings in accordance with the terms of the Merger Agreement.

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

Row 2 · 2025-06-18 · Grant · Acquired 372,812 · Balance 372,812

F3: Reflects the acquisition of ROCE-based and TSR-based performance stock units and other performance-based stock awards (collectively, "PSUs") that were deemed to have been earned as of immediately prior to the Effective Time in accordance with the terms of the Merger Agreement.

Row 3 · 2025-06-18 · Disposition to issuer · Disposed 372,812 · Balance 0

F4: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these PSUs was converted into the right to receive the Per Share Merger Consideration, less any applicable tax withholdings.

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

COMMON STOCKSEC Table I · non-derivativeIndirectBy Trust0 Reported balance After 2025-06-18 transaction · row 4 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 4 · 2025-06-18 · Disposition to issuer · Disposed 290,082 · Balance 0

F5: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these Shares was converted into the right to receive the Per Share Merger Consideration, less any applicable tax withholdings.

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

COMMON STOCKSEC Table I · non-derivativeIndirectBy 401(k) Plan0 Reported balance After 2025-06-18 transaction · row 5 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 5 · 2025-06-18 · Disposition to issuer · Disposed 11,783.483 · Balance 0

F6: As a result of the Effective Time, each of the Shares that the reporting person previously reported as beneficially owned under the Company's 401(k) retirement plan was liquidated in exchange for the Per Share Merger Consideration.

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $39.27 · Expires 2027-02-28Direct0 Reported balance After 2025-06-18 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2025-06-18 · Disposition to issuer · Disposed 30,020 · Balance 0

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

F7: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these stock options was converted into the right to receive an amount in cash equal to the positive difference, if any, between the Per Share Merger Consideration and the applicable exercise price, less any applicable tax withholdings.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $23.52 · Expires 2028-12-30Direct0 Reported balance After 2025-06-18 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2025-06-18 · Disposition to issuer · Disposed 171,000 · Balance 0

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

F7: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these stock options was converted into the right to receive an amount in cash equal to the positive difference, if any, between the Per Share Merger Consideration and the applicable exercise price, less any applicable tax withholdings.

Filing footnotes · ownership attribution and instrument terms

F1: On June 18, 2025, United States Steel Corporation (the "Company") consummated the merger transaction (the "Merger") contemplated by that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of December 18, 2023, by and among Nippon Steel North America, Inc., a New York corporation ("Parent"), 2023 Merger Subsidiary, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, and the Company. The effective time of the Merger is referred to herein as the "Effective Time".

F2: Reflects (i) shares of common stock of the Company, par value $1.00 (the "Shares"), held directly by the reporting person, (ii) restricted stock units previously granted to the reporting person, and (iii) ROCE-based and TSR-based performance stock units previously granted to the reporting person that relate to performance periods that were completed prior to the Effective Time that, in each case, as of immediately prior to the Effective Time, were converted into the right to receive $55 in cash per Share (the "Per Share Merger Consideration"), less any applicable tax withholdings in accordance with the terms of the Merger Agreement.

F3: Reflects the acquisition of ROCE-based and TSR-based performance stock units and other performance-based stock awards (collectively, "PSUs") that were deemed to have been earned as of immediately prior to the Effective Time in accordance with the terms of the Merger Agreement.

F4: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these PSUs was converted into the right to receive the Per Share Merger Consideration, less any applicable tax withholdings.

F5: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these Shares was converted into the right to receive the Per Share Merger Consideration, less any applicable tax withholdings.

F6: As a result of the Effective Time, each of the Shares that the reporting person previously reported as beneficially owned under the Company's 401(k) retirement plan was liquidated in exchange for the Per Share Merger Consideration.

F7: Immediately prior to the Effective Time, in accordance with the terms of the Merger Agreement, each of these stock options was converted into the right to receive an amount in cash equal to the positive difference, if any, between the Per Share Merger Consideration and the applicable exercise price, less any applicable tax withholdings.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 06, 2020 Filed Feb 11, 2021 20:59 UTC UNITED STATES STEEL CORP X · Entity 78343 GiftCommon Stock 95,016 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-009944 · doc5.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 638,252

F1 · kind: For estate planning purposes, the reporting person transferred these shares from a living trust to an irrevocable trust for the benefit of members of his immediate family. The reporting person remains the beneficial owner of the shares held in the irrevocable trust.

Read SEC document
June 30, 2020 Filed Jul 2, 2020 19:04 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 111.3258 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-20-009464 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 7,648.1382

Underlying: Common Stock · 111.3258 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of Lockheed Martin Corporation common stock.

F2 · price: The information pertains to phantom stock units acquired at $364.92 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $364.92 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $364.92 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
May 31, 2020 Filed Jun 2, 2020 18:10 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingUnited States Steel Corporation Common Stock 3,017 $8.25 $24,890.25
Disclosure

SEC source: 0001209191-20-033702 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 733,268

F1 · kind: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on May 31, 2017. RSUs vest ratably over a three year period.

Read SEC document
March 31, 2020 Filed Apr 2, 2020 21:56 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 119.8554 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-20-005970 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 7,486.4495

Underlying: Common Stock · 119.8554 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of Lockheed Martin Corporation common stock.

F2 · price: The information pertains to phantom stock units acquired at $338.95 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $338.95 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $338.95 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
February 28, 2020 Filed Mar 2, 2020 17:33 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingUnited States Steel Corporation Common Stock 1,314 $7.76 $10,196.64
Disclosure

SEC source: 0001209191-20-014652 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 736,285

F2 · shares: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on February 28, 2017.

Read SEC document
February 27, 2020 Filed Mar 2, 2020 17:33 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingUnited States Steel Corporation Common Stock 5,202 $7.84 $40,783.68
Disclosure

SEC source: 0001209191-20-014652 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 737,599

F1 · shares: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on February 27, 2018.

Read SEC document
February 26, 2020 Filed Feb 27, 2020 18:38 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingUnited States Steel Corporation Common Stock 12,545 $8.46 $106,130.70
Disclosure

SEC source: 0001209191-20-013533 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 742,801

F2 · shares: This line reflects the tax withholding on the vesting of performance based restricted stock units (RSUs) that were granted on February 26, 2019.

Read SEC document
February 25, 2020 Filed Feb 27, 2020 18:38 UTC UNITED STATES STEEL CORP X · Entity 78343 GrantUnited States Steel Corporation Common Stock 362,610 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-013533 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 755,346

F1 · shares: This line reflects the grant of restricted stock units (RSUs). RSUs vest ratably over three years, one-third on each of the first, second and third grant date anniversaries. RSUs are payable in stock only.

Read SEC document
January 30, 2020 Filed Feb 3, 2020 23:17 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 372.7919 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-20-001508 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Equity Plan

Disclosed balance after: 9,758.3428

Underlying: Common Stock · 372.7919 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of Lockheed Martin Corporation common stock.

F2 · price: In accordance with the Amended and Restated Lockheed Martin Corporation Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $435.90 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards made after January 1, 2018 (together with any dividend equivalents thereon) made on the first business day of April following vesting of the award.

F2 · derivative.exercise_date: In accordance with the Amended and Restated Lockheed Martin Corporation Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $435.90 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards made after January 1, 2018 (together with any dividend equivalents thereon) made on the first business day of April following vesting of the award.

F2 · derivative.expiration_date: In accordance with the Amended and Restated Lockheed Martin Corporation Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $435.90 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards made after January 1, 2018 (together with any dividend equivalents thereon) made on the first business day of April following vesting of the award.

Read SEC document
December 31, 2019 Filed Jan 3, 2020 21:18 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 99.5172 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-20-000290 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 7,316.1926

Underlying: Common Stock · 99.5172 shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of phantom stock is the economic equivalent of one share of Lockheed Martin Corporation common stock.

F2 · price: The information pertains to phantom stock units acquired at $389.38 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $389.38 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $389.38 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
September 30, 2019 Filed Oct 1, 2019 20:43 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 99.3437 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-19-012909 · doc4.xml · derivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 7,172.9381

Underlying: Common Stock · 99.3437 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $390.06 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $390.06 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $390.06 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
August 16, 2019 Filed Oct 1, 2019 20:43 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GiftCommon Stock 27 $0.00 $0.00
Disclosure

SEC source: 0001225208-19-012909 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,003

Read SEC document
June 28, 2019 Filed Jul 2, 2019 20:07 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 106.5907 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-19-009821 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 7,033.6992

Underlying: Common Stock · 106.5907 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $363.54 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $363.54 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $363.54 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
May 31, 2019 Filed Jun 4, 2019 16:16 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 3,017 $11.87 $35,811.79
Disclosure

SEC source: 0001209191-19-034241 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 392,736

F2 · kind: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on May 31, 2017. RSUs vest ratably over a three year period.

Read SEC document
May 31, 2019 Filed Jun 4, 2019 16:16 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 4,594 $11.87 $54,530.78
Disclosure

SEC source: 0001209191-19-034241 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 395,753

F1 · kind: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on May 31, 2016. RSUs vest ratably over a three year period.

Read SEC document
April 24, 2019 Filed Apr 25, 2019 20:16 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 SaleCommon Stock 2,100 $330.21 $693,442.68
Disclosure

SEC source: 0001225208-19-007179 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,030

Read SEC document
March 29, 2019 Filed Apr 2, 2019 21:24 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 129.0978 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-19-006180 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 6,885.4405

Underlying: Common Stock · 129.0978 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $300.16 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $300.16 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $300.16 per share through director retainer fee deferral under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
February 28, 2019 Filed Mar 4, 2019 16:11 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 2,015 $23.05 $46,445.75
Disclosure

SEC source: 0001209191-19-015538 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 400,347

F1 · shares: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on February 28, 2018. RSUs vest ratably over a three year period.

Read SEC document
February 27, 2019 Filed Feb 28, 2019 18:13 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 7,975 $24.06 $191,878.50
Disclosure

SEC source: 0001209191-19-014681 · doc4.xml · nonDerivative · entry 4

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 402,362

F4 · shares: This line reflects the tax withholding on the vesting RSUs that were granted on February 27, 2018. RSUs vest ratably over a three year period.

Read SEC document
February 26, 2019 Filed Feb 28, 2019 18:13 UTC UNITED STATES STEEL CORP X · Entity 78343 GrantCommon Stock 133,780 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-014681 · doc4.xml · nonDerivative · entry 3

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 410,337

F3 · shares: This line reflects the grant of RSUs. RSUs vest ratably over three years, one-third on each of the first, second and third grant date anniversaries. RSUs are payable in stock only.

Read SEC document
February 26, 2019 Filed Feb 28, 2019 18:13 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 34,013 $23.92 $813,590.96
Disclosure

SEC source: 0001209191-19-014681 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 276,557

F2 · shares: This line reflects the tax withholding on the vesting of performance-based RSUs that were granted on February 22, 2016.

Read SEC document
February 26, 2019 Filed Feb 28, 2019 18:13 UTC UNITED STATES STEEL CORP X · Entity 78343 GrantCommon Stock 88,600 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-014681 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 310,570

F1 · shares: This line represents performance-based restricted stock units (RSUs) that were granted on February 22, 2016 and vested on February 26, 2019. Performance awards vest depending upon the performance of U. S. Steel's common stock performance vs. that of a peer group over a three-year period.

Read SEC document
January 31, 2019 Filed Feb 4, 2019 21:15 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 535.0547 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-19-001735 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Equity Plan

Disclosed balance after: 9,153.1701

Underlying: Common Stock · 535.0547 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: In accordance with the Lockheed Martin Corporation Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $289.69 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have payment begin on March 30 following vesting of the award.

F2 · derivative.exercise_date: In accordance with the Lockheed Martin Corporation Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $289.69 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have payment begin on March 30 following vesting of the award.

F2 · derivative.expiration_date: In accordance with the Lockheed Martin Corporation Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $289.69 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have payment begin on March 30 following vesting of the award.

Read SEC document
December 31, 2018 Filed Jan 3, 2019 23:18 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 147.9911 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-19-000500 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 6,707.1829

Underlying: Common Stock · 147.9911 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $261.84 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $261.84 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $261.84 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
September 28, 2018 Filed Oct 2, 2018 21:28 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 112.0072 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-18-014170 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 6,504.4199

Underlying: Common Stock · 112.0072 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $345.96 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $345.96 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $345.96 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
June 29, 2018 Filed Jul 3, 2018 19:01 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 131.1647 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-18-011284 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 6,355.6705

Underlying: Common Stock · 131.1647 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $295.43 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $295.43 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $295.43 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
May 31, 2018 Filed Jun 4, 2018 16:05 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 3,181 $37.85 $120,400.85
Disclosure

SEC source: 0001209191-18-035008 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 221,970

F2 · kind: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on May 31, 2017. RSUs vest ratably over a three year period.

Read SEC document
May 31, 2018 Filed Jun 4, 2018 16:05 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 4,594 $37.85 $173,882.90
Disclosure

SEC source: 0001209191-18-035008 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 225,151

F1 · kind: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on May 31, 2016. RSUs vest ratably over a three year period.

Read SEC document
March 30, 2018 Filed Apr 3, 2018 20:11 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 114.6687 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-18-007159 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 6,183.1992

Underlying: Common Stock · 114.6687 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $337.93 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $337.93 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $337.93 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
February 28, 2018 Filed Mar 2, 2018 17:52 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 2,124 $44.11 $93,689.64
Disclosure

SEC source: 0001209191-18-015938 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 229,745

F1 · shares: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on February 28, 2017. RSUs vest ratably over a three year period.

Read SEC document
February 27, 2018 Filed Mar 1, 2018 19:16 UTC UNITED STATES STEEL CORP X · Entity 78343 GrantCommon Stock 55,470 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-015248 · doc4.xml · nonDerivative · entry 3

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 231,869

F3 · shares: This line reflects the grant of restricted stock units (RSUs). RSUs vest ratably over three years, one-third on each of the first, second and third grant date anniversaries. RSUs are payable in stock only.

Read SEC document
February 27, 2018 Filed Mar 1, 2018 19:16 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 11,141 $43.99 $490,092.59
Disclosure

SEC source: 0001209191-18-015248 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176,399

F2 · shares: This line reflects the tax withholding on the vesting of performance based restricted stock units (RSUs) that were granted on February 24, 2015.

Read SEC document
February 27, 2018 Filed Mar 1, 2018 19:16 UTC UNITED STATES STEEL CORP X · Entity 78343 GrantCommon Stock 24,495 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-015248 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,540

F1 · shares: This line represents performance-based restricted stock units (RSUs) that were granted on February 24, 2015 and vested on February 27, 2018. Performance awards vest depending upon the performance of U. S. Steel's common stock performance vs. that of a peer group over a three-year period.

Read SEC document
February 24, 2018 Filed Feb 27, 2018 18:07 UTC UNITED STATES STEEL CORP X · Entity 78343 Tax withholdingCommon Stock 3,366 $44.77 $150,695.82
Disclosure

SEC source: 0001209191-18-014102 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 163,045

F1 · kind: This line reflects the tax withholding on the vesting of restricted stock units (RSUs) that were granted on February 24, 2015. RSUs vest ratably over a three year period.

Read SEC document
February 16, 2018 Filed Feb 21, 2018 17:03 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock Option · Derivative 18,260 $0.00 Strike: $24.78 $0.00
Disclosure

SEC source: 0001209191-18-011986 · doc4.xml · derivative · entry 7

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,260

Underlying: Common Stock · 18,260 shares

Expires 2025-02-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

F2 · derivative.exercise_date: Option grant vests ratably over three years, one-third on each of the first, second and third grant date anniversaries.

Read SEC document
February 16, 2018 Filed Feb 21, 2018 17:03 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock Option · Derivative 16,780 $0.00 Strike: $24.29 $0.00
Disclosure

SEC source: 0001209191-18-011986 · doc4.xml · derivative · entry 6

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,780 shares

Expires 2024-05-27

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
February 16, 2018 Filed Feb 21, 2018 17:03 UTC UNITED STATES STEEL CORP X · Entity 78343 SaleCoomon Stock 18,260 $43.95 $802,527.00
Disclosure

SEC source: 0001209191-18-011986 · doc4.xml · nonDerivative · entry 4

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,411

F1 · kind: The transactions reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
February 16, 2018 Filed Feb 21, 2018 17:03 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock 18,260 $24.78 $452,482.80
Disclosure

SEC source: 0001209191-18-011986 · doc4.xml · nonDerivative · entry 3

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,671

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
February 16, 2018 Filed Feb 21, 2018 17:03 UTC UNITED STATES STEEL CORP X · Entity 78343 SaleCommon Stock 16,780 $43.95 $737,481.00
Disclosure

SEC source: 0001209191-18-011986 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,411

F1 · kind: The transactions reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
February 16, 2018 Filed Feb 21, 2018 17:03 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock 16,780 $24.29 $407,502.30
Disclosure

SEC source: 0001209191-18-011986 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,191

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The transactions reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 21:16 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 436.8043 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-18-002063 · doc4.xml · derivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Equity Plan

Disclosed balance after: 8,390.7429

Underlying: Common Stock · 436.8043 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: In accordance with the Lockheed Martin Corporation 2009 Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $354.85 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards made after January 1, 2018 begin on March 30 following vesting of the award.

F2 · derivative.exercise_date: In accordance with the Lockheed Martin Corporation 2009 Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $354.85 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards made after January 1, 2018 begin on March 30 following vesting of the award.

F2 · derivative.expiration_date: In accordance with the Lockheed Martin Corporation 2009 Directors' Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $354.85 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards made after January 1, 2018 begin on March 30 following vesting of the award.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

Read SEC document
January 23, 2018 Filed Jan 25, 2018 17:20 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock Option · Derivative 22,916 $0.00 Strike: $14.78 $0.00
Disclosure

SEC source: 0001209191-18-005440 · doc4.xml · derivative · entry 5

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,834

Underlying: Common Stock · 22,916 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: The option exercise and sale reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

F4 · derivative.exercise_date: Option grant vests ratably over three years, one-third on each of the first, second and third grant date anniversaries.

Read SEC document
January 23, 2018 Filed Jan 25, 2018 17:20 UTC UNITED STATES STEEL CORP X · Entity 78343 SaleCommon Stock 22,916 $39.95 $915,494.20
Disclosure

SEC source: 0001209191-18-005440 · doc4.xml · nonDerivative · entry 3

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,411

F3 · kind: The option exercise and sale reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
January 23, 2018 Filed Jan 25, 2018 17:20 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock 22,916 $14.78 $338,698.48
Disclosure

SEC source: 0001209191-18-005440 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,327

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: The option exercise and sale reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
January 23, 2018 Filed Jan 25, 2018 17:20 UTC UNITED STATES STEEL CORP X · Entity 78343 SaleCommon Stock 13,156 $39.95 $525,608.51
Disclosure

SEC source: 0001209191-18-005440 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,411

F1 · kind: This transaction was completed pursuant to the terms of a 10b5-1 trading plan entered into on June 5, 2017.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.95 to $39.955, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
January 16, 2018 Filed Jan 17, 2018 16:51 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock Option · Derivative 1,000 $0.00 Strike: $14.78 $0.00
Disclosure

SEC source: 0001209191-18-003999 · doc4.xml · derivative · entry 5

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,750

Underlying: Common Stock · 1,000 shares

Expires 2026-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: The option exercise and sale reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

F4 · derivative.exercise_date: Option grant vests ratably over three years, one-third on each of the first, second and third grant date anniversaries.

Read SEC document
January 16, 2018 Filed Jan 17, 2018 16:51 UTC UNITED STATES STEEL CORP X · Entity 78343 SaleCommon Stock 1,000 $39.96 $39,960.00
Disclosure

SEC source: 0001209191-18-003999 · doc4.xml · nonDerivative · entry 3

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,567

F3 · shares: The option exercise and sale reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

Read SEC document
January 16, 2018 Filed Jan 17, 2018 16:51 UTC UNITED STATES STEEL CORP X · Entity 78343 Exercise / conversionCommon Stock 1,000 $14.78 $14,780.00
Disclosure

SEC source: 0001209191-18-003999 · doc4.xml · nonDerivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 180,567

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: The option exercise and sale reported on this Form 4 were completed pursuant to the terms of a 10b5-1 trading plan entered into on June 2, 2017.

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January 16, 2018 Filed Jan 17, 2018 16:51 UTC UNITED STATES STEEL CORP X · Entity 78343 SaleCommon Stock 5,936 $39.95 $237,149.14
Disclosure

SEC source: 0001209191-18-003999 · doc4.xml · nonDerivative · entry 1

BURRITT DAVID B · CIK 0001204586 · Director · Pres. & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,567

F1 · shares: This transaction was completed pursuant to the terms of a 10b5-1 trading plan entered into on June 5, 2017.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.95 to $39.96, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

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December 29, 2017 Filed Jan 3, 2018 22:28 UTC LOCKHEED MARTIN CORP LMT · Entity 2882 GrantPhantom Stock Units · Derivative 120.6977 Not disclosed Not disclosed
Disclosure

SEC source: 0001225208-18-000419 · doc4.xml · derivative · entry 2

BURRITT DAVID B · CIK 0001204586 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lockheed Martin Directors Deferred Comp Plan

Disclosed balance after: 6,032.6549

Underlying: Common Stock · 120.6977 shares

Expires not disclosed

F1 · derivative.exercise_price: The stock units convert on a 1-for-1 basis.

F2 · price: The information pertains to phantom stock units acquired at $321.05 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.exercise_date: The information pertains to phantom stock units acquired at $321.05 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F2 · derivative.expiration_date: The information pertains to phantom stock units acquired at $321.05 per share through director retainer fee deferral under the Lockheed Martin Directors Deferred Compensation Plan exempt under Section 16(b). Units are settled in cash upon the reporting person's retirement or termination of service.

F3 · balance_after: End of period holdings include additional acquisitions through dividend reinvestment.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.