MTRN

SEC source: 0001204034-26-000018 · wk-form4_1778874795.xml · nonDerivative · entry 3

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,774

F1 · price: The Reporting Person undertakes to provide 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 ranges set forth in footnotes (2) through (5) of this Form 4.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $207.330 to $208.190, inclusive.

SEC source: 0001204034-26-000018 · wk-form4_1778874795.xml · nonDerivative · entry 2

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,184

F1 · price: The Reporting Person undertakes to provide 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 ranges set forth in footnotes (2) through (5) of this Form 4.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $206.260 to $207.140, inclusive.

SEC source: 0001204034-26-000018 · wk-form4_1778874795.xml · nonDerivative · entry 1

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,936

F1 · price: The Reporting Person undertakes to provide 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 ranges set forth in footnotes (2) through (5) of this Form 4.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.140 to $206.030, inclusive.

SEC source: 0001541300-26-000015 · wk-form4_1778874789.xml · derivative · entry 3

Vijayvargiya Jugal K. · CIK 0001541300 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,071 shares

Expires 2027-02-19

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 · derivative.exercise_date: The Stock Appreciation Rights vested in three substantially equal annual installments beginning on February 19, 2021.

SEC source: 0001541300-26-000015 · wk-form4_1778874789.xml · nonDerivative · entry 2

Vijayvargiya Jugal K. · CIK 0001541300 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,587

SEC source: 0001541300-26-000015 · wk-form4_1778874789.xml · nonDerivative · entry 1

Vijayvargiya Jugal K. · CIK 0001541300 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,770

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.

SEC source: 0001048858-26-000004 · wk-form4_1778522472.xml · derivative · entry 1

EDMAN THOMAS T · CIK 0001048858 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001078942-26-000010 · wk-form4_1778522467.xml · derivative · entry 4

SHULAR CRAIG S · CIK 0001078942 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001231898-26-000005 · wk-form4_1778522509.xml · derivative · entry 4

LIGGETT EMILY M · CIK 0001231898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001204034-26-000016 · wk-form4_1778522502.xml · derivative · entry 4

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 837

Underlying: Common Stock · 837 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001392923-26-000005 · wk-form4_1778522496.xml · derivative · entry 3

Toth Robert B · CIK 0001392923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001526849-26-000005 · wk-form4_1778522485.xml · derivative · entry 3

Solomon Darlene J. S. · CIK 0001526849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001422978-26-000010 · wk-form4_1778522479.xml · derivative · entry 3

Prevost Patrick M. · CIK 0001422978 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001213190-26-000013 · wk-form4_1778522460.xml · derivative · entry 4

PHILLIPPY ROBERT J · CIK 0001213190 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 758

Underlying: Common Stock · 758 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F4 · derivative.exercise_date: The restricted stock units generally vest on the earlier of (1) the first anniversary of the grant date and (2) the next annual meeting of MTRN's shareholders that follows the grant.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001688289-26-000014 · wk-form4_1778615200.xml · derivative · entry 4

Chadwick Shelly Marie · CIK 0001688289 · Vice President, Finance & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,912 shares

Expires 2030-03-01

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 · derivative.exercise_date: The Stock Appreciation Rights vested in three equal annual installments beginning March 1, 2024.

SEC source: 0001688289-26-000014 · wk-form4_1778615200.xml · nonDerivative · entry 3

Chadwick Shelly Marie · CIK 0001688289 · Vice President, Finance & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,246

SEC source: 0001688289-26-000014 · wk-form4_1778615200.xml · nonDerivative · entry 2

Chadwick Shelly Marie · CIK 0001688289 · Vice President, Finance & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,438

SEC source: 0001688289-26-000014 · wk-form4_1778615200.xml · nonDerivative · entry 1

Chadwick Shelly Marie · CIK 0001688289 · Vice President, Finance & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,158

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.

SEC source: 0001078942-26-000010 · wk-form4_1778522467.xml · derivative · entry 3

SHULAR CRAIG S · CIK 0001078942 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001078942-26-000010 · wk-form4_1778522467.xml · nonDerivative · entry 1

SHULAR CRAIG S · CIK 0001078942 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held In Directors Deferred Comp. Plan

Disclosed balance after: 54,793.053

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001231898-26-000005 · wk-form4_1778522509.xml · derivative · entry 3

LIGGETT EMILY M · CIK 0001231898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001231898-26-000005 · wk-form4_1778522509.xml · nonDerivative · entry 1

LIGGETT EMILY M · CIK 0001231898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,782

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001204034-26-000016 · wk-form4_1778522502.xml · derivative · entry 3

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001204034-26-000016 · wk-form4_1778522502.xml · nonDerivative · entry 1

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,671

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001392923-26-000005 · wk-form4_1778522496.xml · derivative · entry 2

Toth Robert B · CIK 0001392923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001392923-26-000005 · wk-form4_1778522496.xml · nonDerivative · entry 1

Toth Robert B · CIK 0001392923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,832

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001526849-26-000005 · wk-form4_1778522485.xml · derivative · entry 2

Solomon Darlene J. S. · CIK 0001526849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001526849-26-000005 · wk-form4_1778522485.xml · nonDerivative · entry 1

Solomon Darlene J. S. · CIK 0001526849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,423

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001422978-26-000010 · wk-form4_1778522479.xml · derivative · entry 2

Prevost Patrick M. · CIK 0001422978 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001422978-26-000010 · wk-form4_1778522479.xml · nonDerivative · entry 1

Prevost Patrick M. · CIK 0001422978 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held In Directors Deferred Comp. Plan

Disclosed balance after: 18,316.28

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001213190-26-000013 · wk-form4_1778522460.xml · derivative · entry 3

PHILLIPPY ROBERT J · CIK 0001213190 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001213190-26-000013 · wk-form4_1778522460.xml · nonDerivative · entry 1

PHILLIPPY ROBERT J · CIK 0001213190 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,164

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001209386-26-000005 · wk-form4_1778522454.xml · derivative · entry 3

REDDY N MOHAN · CIK 0001209386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,006 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These shares were issued pursuant to the vesting of a restricted stock unit award made May 8, 2025 that vested on May 7, 2026.

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001209386-26-000005 · wk-form4_1778522454.xml · nonDerivative · entry 1

REDDY N MOHAN · CIK 0001209386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

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 · price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

SEC source: 0001078942-26-000007 · wk-form4_1775744927.xml · nonDerivative · entry 1

SHULAR CRAIG S · CIK 0001078942 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held In Directors Deferred Comp. Plan

Disclosed balance after: 52,787.053

SEC source: 0001422978-26-000007 · wk-form4_1775744920.xml · nonDerivative · entry 1

Prevost Patrick M. · CIK 0001422978 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held In Directors Deferred Comp. Plan

Disclosed balance after: 16,310.28

SEC source: 0001541300-26-000013 · wk-form4_1773166905.xml · nonDerivative · entry 2

Vijayvargiya Jugal K. · CIK 0001541300 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,699

SEC source: 0001688289-26-000012 · wk-form4_1773166900.xml · nonDerivative · entry 2

Chadwick Shelly Marie · CIK 0001688289 · Vice President, Finance & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,246

SEC source: 0001519910-26-000010 · wk-form4_1773166888.xml · nonDerivative · entry 2

Chemnitz Gregory R. · CIK 0001519910 · VP General Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,930

SEC source: 0001078942-26-000004 · wk-form4_1773166894.xml · derivative · entry 3

SHULAR CRAIG S · CIK 0001078942 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001078942-26-000004 · wk-form4_1773166894.xml · nonDerivative · entry 1

SHULAR CRAIG S · CIK 0001078942 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held In Directors Deferred Comp. Plan

Disclosed balance after: 52,624.053

SEC source: 0001204034-26-000011 · wk-form4_1773166948.xml · derivative · entry 3

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001204034-26-000011 · wk-form4_1773166948.xml · nonDerivative · entry 1

KHILNANI VINOD M · CIK 0001204034 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held in Directors Deferred Compensation Plan.

Disclosed balance after: 20,011.843

SEC source: 0001213190-26-000008 · wk-form4_1773166943.xml · derivative · entry 3

PHILLIPPY ROBERT J · CIK 0001213190 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: The restricted stock units, which were acquired upon the reinvestment of the dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001213190-26-000008 · wk-form4_1773166943.xml · nonDerivative · entry 1

PHILLIPPY ROBERT J · CIK 0001213190 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held in Directors Deferred Compensation Plan

Disclosed balance after: 12,027.253

SEC source: 0001526849-26-000002 · wk-form4_1773166938.xml · derivative · entry 1

Solomon Darlene J. S. · CIK 0001526849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: The restricted stock units, which were acquired upon the reinvestment of the dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001392923-26-000002 · wk-form4_1773166932.xml · derivative · entry 1

Toth Robert B · CIK 0001392923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001231898-26-000002 · wk-form4_1773166928.xml · derivative · entry 3

LIGGETT EMILY M · CIK 0001231898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: The restricted stock units, which were acquired upon the reinvestment of the dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.

SEC source: 0001231898-26-000002 · wk-form4_1773166928.xml · nonDerivative · entry 1

LIGGETT EMILY M · CIK 0001231898 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Held in Directors Deferred Comp. Plan

Disclosed balance after: 1,270.561

SEC source: 0001209386-26-000002 · wk-form4_1773166923.xml · derivative · entry 2

REDDY N MOHAN · CIK 0001209386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006

Underlying: Common Stock · 2 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a right to receive one share of MTRN common stock.

F2 · derivative.exercise_date: These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

F3 · derivative.expiration_date: Expiration Date is the same as the Date Exercisable.