LCII

SEC source: 0000763744-26-000065 · wk-form4_1784545721.xml · derivative · entry 1

Hureau Robert Paul · CIK 0001483898 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,133

Underlying: Common Stock · 1,133 shares

Expires 2027-07-18

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

SEC source: 0001793726-26-000003 · wk-form4_1780690618.xml · derivative · entry 3

SIRPILLA JOHN A. · CIK 0001793726 · Director · Interim CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,503

Underlying: Common Stock · 16,503 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F3 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of the date of the 2027 annual meeting of stockholders or June 3, 2027, the one-year anniversary of the Reporting Person's start date as Interim CEO.

F3 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of the date of the 2027 annual meeting of stockholders or June 3, 2027, the one-year anniversary of the Reporting Person's start date as Interim CEO.

SEC source: 0001238361-26-000005 · wk-form4_1780690571.xml · derivative · entry 7

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,066 shares

Expires 2029-03-01

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F12 · shares: Includes 245 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F13 · shares: Represents the forfeiture and cancellation of performance stock units previously granted to the Reporting Person on March 1, 2026, in connection with the Reporting Person's resignation from the Issuer on June 3, 2026, pursuant to the terms of the Separation Agreement and General Release.

SEC source: 0001238361-26-000005 · wk-form4_1780690571.xml · derivative · entry 6

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 38,033 shares

Expires 2028-03-01

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F10 · shares: Includes 357 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F11 · shares: Represents the forfeiture and cancellation of performance stock units previously granted to the Reporting Person on March 1, 2025, in connection with the Reporting Person's resignation from the Issuer on June 3, 2026, pursuant to the terms of the Separation Agreement and General Release.

SEC source: 0001544055-26-000007 · wk-form4_1780690597.xml · derivative · entry 2

Graham Tracy D · CIK 0001544055 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Represents the forfeiture of restricted stock units previously granted to the reporting person on May 12, 2026, which were canceled in connection with the reporting person's resignation from the Board of Directors on June 3, 2026.

F3 · derivative.exercise_date: These restricted stock units were originally scheduled to vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units were originally scheduled to vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001628280-26-034387 · wk-form4_1778678469.xml · derivative · entry 3

O'SULLIVAN KIERAN M · CIK 0001566534 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001628280-26-034387 · wk-form4_1778678469.xml · derivative · entry 2

O'SULLIVAN KIERAN M · CIK 0001566534 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001628280-26-034387 · wk-form4_1778678469.xml · nonDerivative · entry 1

O'SULLIVAN KIERAN M · CIK 0001566534 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,722

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: 0001793726-26-000002 · wk-form4_1778678357.xml · derivative · entry 3

SIRPILLA JOHN A. · CIK 0001793726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001793726-26-000002 · wk-form4_1778678357.xml · derivative · entry 2

SIRPILLA JOHN A. · CIK 0001793726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001793726-26-000002 · wk-form4_1778678357.xml · nonDerivative · entry 1

SIRPILLA JOHN A. · CIK 0001793726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,294

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: 0001506839-26-000005 · wk-form4_1778678156.xml · derivative · entry 3

Henkels Virginia · CIK 0001506839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001506839-26-000005 · wk-form4_1778678156.xml · derivative · entry 2

Henkels Virginia · CIK 0001506839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001506839-26-000005 · wk-form4_1778678156.xml · nonDerivative · entry 1

Henkels Virginia · CIK 0001506839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,086

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: 0001805486-26-000003 · wk-form4_1778678257.xml · derivative · entry 3

Myers Linda Kristine · CIK 0001805486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001805486-26-000003 · wk-form4_1778678257.xml · derivative · entry 2

Myers Linda Kristine · CIK 0001805486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001805486-26-000003 · wk-form4_1778678257.xml · nonDerivative · entry 1

Myers Linda Kristine · CIK 0001805486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,267

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: 0001544055-26-000004 · wk-form4_1778678091.xml · derivative · entry 3

Graham Tracy D · CIK 0001544055 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001544055-26-000004 · wk-form4_1778678091.xml · derivative · entry 2

Graham Tracy D · CIK 0001544055 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001544055-26-000004 · wk-form4_1778678091.xml · nonDerivative · entry 1

Graham Tracy D · CIK 0001544055 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,427

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: 0001766980-26-000003 · wk-form4_1778678213.xml · derivative · entry 3

Mains Stephanie K. · CIK 0001766980 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001766980-26-000003 · wk-form4_1778678213.xml · derivative · entry 2

Mains Stephanie K. · CIK 0001766980 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001766980-26-000003 · wk-form4_1778678213.xml · nonDerivative · entry 1

Mains Stephanie K. · CIK 0001766980 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,254

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: 0001327580-26-000002 · wk-form4_1778678025.xml · derivative · entry 3

Deely Brendan · CIK 0001327580 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,335

Underlying: Common Stock · 1,335 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · derivative.exercise_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 12, 2027 or the date of next year's annual meeting of stockholders.

SEC source: 0001327580-26-000002 · wk-form4_1778678025.xml · derivative · entry 2

Deely Brendan · CIK 0001327580 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 74 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, December 12, 2025, and March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F3 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001327580-26-000002 · wk-form4_1778678025.xml · nonDerivative · entry 1

Deely Brendan · CIK 0001327580 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,160

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: 0001213182-26-000007 · wk-form4_1778791127.xml · derivative · entry 4

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,876 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F3 · shares: Includes 5 stock unit(s) received as a result of an administrative adjustment.

F4 · derivative.exercise_date: These shares represent deferred stock units "DSUs" earned from quarterly director fees. Per the election of the director, these DSUs vested on May 12, 2026 upon the conclusion of the director's board service with the Company.

F4 · derivative.expiration_date: These shares represent deferred stock units "DSUs" earned from quarterly director fees. Per the election of the director, these DSUs vested on May 12, 2026 upon the conclusion of the director's board service with the Company.

SEC source: 0001213182-26-000007 · wk-form4_1778791127.xml · derivative · entry 3

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,761 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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · derivative.exercise_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

F2 · derivative.expiration_date: These restricted stock units vested in full on May 12, 2026, the date of the 2026 annual meeting of stockholders.

SEC source: 0001213182-26-000007 · wk-form4_1778791127.xml · nonDerivative · entry 2

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 333,123

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: 0001213182-26-000007 · wk-form4_1778791127.xml · nonDerivative · entry 1

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 321,247

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: 0001693376-26-000005 · wk-form4_1776690891.xml · derivative · entry 3

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,131 shares

Expires 2026-04-17

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 Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 10 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was April 17, 2023.

SEC source: 0001693376-26-000005 · wk-form4_1776690891.xml · nonDerivative · entry 2

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,122

SEC source: 0001693376-26-000005 · wk-form4_1776690891.xml · nonDerivative · entry 1

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,621

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: 0001628280-26-022799 · wk-form4_1775074281.xml · derivative · entry 2

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,871

Underlying: Common Stock · 234 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · derivative.exercise_date: These shares represent deferred stock units "DSUs" earned from quarterly director fees, the settlement of these DSUs will vest upon the conclusion of the director's board service with the Company per the election of the director.

F2 · derivative.expiration_date: These shares represent deferred stock units "DSUs" earned from quarterly director fees, the settlement of these DSUs will vest upon the conclusion of the director's board service with the Company per the election of the director.

F3 · balance_after: Includes 109 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 27, 2026 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

SEC source: 0001700779-26-000004 · wk-form4_1772573999.xml · derivative · entry 8

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,680

Underlying: Common Stock · 1,680 shares

Expires 2029-03-01

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F10 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2026.

SEC source: 0001700779-26-000004 · wk-form4_1772573999.xml · derivative · entry 7

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,587

Underlying: Common Stock · 793 shares

Expires 2028-03-01

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_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F7 · shares: Includes 36 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 21, 2025, June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F8 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2025.

F9 · balance_after: Includes 73 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 21, 2025, June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

SEC source: 0001700779-26-000004 · wk-form4_1772573999.xml · derivative · entry 6

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 671

Underlying: Common Stock · 668 shares

Expires 2027-03-01

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_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · shares: Includes 31 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 21, 2025, June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F5 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2024.

F6 · balance_after: Includes 30 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 21, 2025, June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

SEC source: 0001700779-26-000004 · wk-form4_1772573999.xml · derivative · entry 5

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 491 shares

Expires 2026-03-01

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_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F2 · shares: Includes 22 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 21, 2025, June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F3 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2023.

SEC source: 0001700779-26-000004 · wk-form4_1772573999.xml · nonDerivative · entry 4

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,886

SEC source: 0001700779-26-000004 · wk-form4_1772573999.xml · nonDerivative · entry 3

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,457

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: 0001700779-26-000004 · wk-form4_1772573999.xml · nonDerivative · entry 2

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,664

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: 0001700779-26-000004 · wk-form4_1772573999.xml · nonDerivative · entry 1

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,996

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: 0001693376-26-000003 · wk-form4_1772573955.xml · derivative · entry 11

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,265 shares

Expires 2026-03-01

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F13 · shares: Represents the forfeiture of PSUs granted to the reporting person on April 17, 2023 that were eligible to vest based on certain financial performance objectives. Upon grant, the target vesting amount was reported in Table II of Form 4. On March 1, 2026, the Company determined that, based on the Company's performance over the applicable performance period, all PSUs under this grant would be forfeited.

F14 · shares: Includes 142 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

SEC source: 0001693376-26-000003 · wk-form4_1772573955.xml · derivative · entry 10

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,063

Underlying: Common Stock · 5,063 shares

Expires 2029-03-01

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F12 · shares: These Performance Stock Units ("PSUs") represent the contingent right to receive shares of LCII Common Stock, if and to the extent certain Return on Invested Capital and Free Cash Flow performance goals are achieved by the end of 2028. Earned PSUs, if any, will vest on March 1, 2029.

SEC source: 0001693376-26-000003 · wk-form4_1772573955.xml · derivative · entry 7

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,342

Underlying: Common Stock · 3,342 shares

Expires 2029-03-01

F1 · derivative.exercise_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F9 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2026.

SEC source: 0001693376-26-000003 · wk-form4_1772573955.xml · derivative · entry 6

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,253

Underlying: Common Stock · 1,624 shares

Expires 2028-03-01

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_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F6 · shares: Includes 54 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F7 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries fo the grant date, which was March 1, 2025

F8 · balance_after: Includes 108 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

SEC source: 0001693376-26-000003 · wk-form4_1772573955.xml · derivative · entry 5

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,353

Underlying: Common Stock · 1,351 shares

Expires 2027-03-01

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_price: Each Stock Unit represents a contingent right to receive one share of LCII Common Stock.

F4 · shares: Includes 45 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

F5 · derivative.exercise_date: These restricted stock units vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2024.

F4 · balance_after: Includes 45 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 13, 2025, September 12, 2025, and December 12, 2025 to holders of registrant's common stock on the related reported record date(s). In accordance with the registrant's 2018 Omnibus Incentive Plan for underlying units granted under that plan, holders of stock units on the reported dividend record date(s) received additional dividend equivalent stock unit(s) subject to the same terms and conditions as the underlying stock units held on the reported record date(s).

SEC source: 0001693376-26-000003 · wk-form4_1772573955.xml · nonDerivative · entry 3

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,490

SEC source: 0001693376-26-000003 · wk-form4_1772573955.xml · nonDerivative · entry 2

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,393

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: 0001693376-26-000003 · wk-form4_1772573955.xml · nonDerivative · entry 1

Etzkorn Lillian · CIK 0001693376 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,769

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.