LCII

SEC source: 0000763744-25-000035 · wk-form4_1741096104.xml · derivative · entry 8

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,842

Underlying: Common Stock · 4,842 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 · 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.

SEC source: 0000763744-25-000035 · wk-form4_1741096104.xml · derivative · entry 7

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,581

Underlying: Common Stock · 1,290 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.

F7 · shares: Includes 48 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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, 2024.

F9 · balance_after: Includes 97 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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: 0000763744-25-000035 · wk-form4_1741096104.xml · derivative · entry 6

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,403

Underlying: Common Stock · 1,403 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.

F4 · shares: Includes 53 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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, 2023.

F6 · balance_after: Includes 52 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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: 0000763744-25-000035 · wk-form4_1741096104.xml · derivative · entry 5

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,360 shares

Expires 2025-03-01

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 51 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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, 2022.

SEC source: 0000763744-25-000035 · wk-form4_1741096104.xml · nonDerivative · entry 4

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,229

SEC source: 0000763744-25-000035 · wk-form4_1741096104.xml · nonDerivative · entry 3

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,408

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: 0000763744-25-000035 · wk-form4_1741096104.xml · nonDerivative · entry 2

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,118

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: 0000763744-25-000035 · wk-form4_1741096104.xml · nonDerivative · entry 1

NAMENYE ANDREW J · CIK 0001723219 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,715

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: 0000763744-25-000034 · wk-form4_1741096044.xml · derivative · entry 12

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 39,877 shares

Expires 2025-03-01

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 March 1, 2022 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, 2025, 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 392 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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: 0000763744-25-000034 · wk-form4_1741096044.xml · derivative · entry 11

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,956

Underlying: Common Stock · 35,956 shares

Expires 2028-03-01

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 a 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 2027. Earned PSUs, if any, will vest on March 1, 2028.

SEC source: 0000763744-25-000034 · wk-form4_1741096044.xml · derivative · entry 8

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,971

Underlying: Common Stock · 23,971 shares

Expires 2028-03-01

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, 2025.

SEC source: 0000763744-25-000034 · wk-form4_1741096044.xml · derivative · entry 7

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,621

Underlying: Common Stock · 7,309 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.

F6 · shares: Includes 72 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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 of the grant date, which was March 1, 2024.

F8 · balance_after: Includes 144 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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: 0000763744-25-000034 · wk-form4_1741096044.xml · derivative · entry 6

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,204

Underlying: Common Stock · 7,203 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.

F4 · shares: Includes 71 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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, 2023.

F4 · balance_after: Includes 71 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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: 0000763744-25-000034 · wk-form4_1741096044.xml · derivative · entry 5

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,647 shares

Expires 2025-03-01

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 65 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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, 2022.

SEC source: 0000763744-25-000034 · wk-form4_1741096044.xml · nonDerivative · entry 4

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 384,973

SEC source: 0000763744-25-000034 · wk-form4_1741096044.xml · nonDerivative · entry 3

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 394,304

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: 0000763744-25-000034 · wk-form4_1741096044.xml · nonDerivative · entry 2

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 386,995

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: 0000763744-25-000034 · wk-form4_1741096044.xml · nonDerivative · entry 1

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 379,792

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: 0000763744-25-000033 · wk-form4_1741095968.xml · derivative · entry 12

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,601 shares

Expires 2025-03-01

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

F14 · shares: Includes 434 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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).

F15 · shares: Represents the forfeiture of PSUs granted to the reporting person on March 1, 2022 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, 2025, the Company determined that, based on the Company's performance over the applicable performance period, all PSUs under this grant would be forfeited.

SEC source: 0000763744-25-000033 · wk-form4_1741095968.xml · derivative · entry 11

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,478

Underlying: Common Stock · 17,478 shares

Expires 2028-03-01

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

F13 · 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 2027. Earned PSUs, if any, will vest on March 1, 2028.

SEC source: 0000763744-25-000033 · wk-form4_1741095968.xml · derivative · entry 8

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,652

Underlying: Common Stock · 11,652 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 · 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

SEC source: 0000763744-25-000033 · wk-form4_1741095968.xml · derivative · entry 7

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,108

Underlying: Common Stock · 3,552 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.

F7 · shares: Includes 133 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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, 2024.

F9 · balance_after: Includes 266 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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: 0000763744-25-000033 · wk-form4_1741095968.xml · derivative · entry 6

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,752

Underlying: Common Stock · 3,749 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.

F4 · shares: Includes 141 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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, 2023.

F6 · balance_after: Includes 140 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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: 0000763744-25-000033 · wk-form4_1741095968.xml · derivative · entry 5

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,626 shares

Expires 2025-03-01

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 136 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) March 22, 2024, June 14, 2024, September 13, 2024, and December 13, 2024 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, 2022.

SEC source: 0000763744-25-000033 · wk-form4_1741095968.xml · nonDerivative · entry 4

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,092

SEC source: 0000763744-25-000033 · wk-form4_1741095968.xml · nonDerivative · entry 3

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,938

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: 0000763744-25-000033 · wk-form4_1741095968.xml · nonDerivative · entry 2

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,386

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: 0000763744-25-000033 · wk-form4_1741095968.xml · nonDerivative · entry 1

SMITH RYAN RICHARD · CIK 0001814112 · Group President - N.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,637

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: 0000763744-25-000032 · wk-form4_1741095892.xml · derivative · entry 8

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,271

Underlying: Common Stock · 2,271 shares

Expires 2028-03-01

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, 2025.

SEC source: 0000763744-25-000032 · wk-form4_1741095892.xml · derivative · entry 7

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,278

Underlying: Common Stock · 637 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.

F6 · shares: Includes 24 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024, September 13, 2024, June 14, 2024, and March 22, 2024 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 of the grant date, which was March 1, 2024.

F8 · balance_after: Includes 48 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024, September 13, 2024, June 14, 2024, and March 22, 2024 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: 0000763744-25-000032 · wk-form4_1741095892.xml · derivative · entry 6

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 468

Underlying: Common Stock · 468 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.

F4 · shares: Includes 18 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024, September 13, 2024, June 14, 2024, and March 22, 2024 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, 2023.

F2 · balance_after: Includes 17 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024, September 13, 2024, June 14, 2024, and March 22, 2024 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: 0000763744-25-000032 · wk-form4_1741095892.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 · 454 shares

Expires 2025-03-01

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 17 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024, September 13, 2024, June 14, 2024, and March 22, 2024 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, 2022.

SEC source: 0000763744-25-000032 · wk-form4_1741095892.xml · nonDerivative · entry 4

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,505

SEC source: 0000763744-25-000032 · wk-form4_1741095892.xml · nonDerivative · entry 3

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,962

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: 0000763744-25-000032 · wk-form4_1741095892.xml · nonDerivative · entry 2

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,325

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: 0000763744-25-000032 · wk-form4_1741095892.xml · nonDerivative · entry 1

EMENHISER KIP A. · CIK 0001700779 · VP of Finance

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,857

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: 0000763744-25-000052 · wk-form4a_1744980019.xml · derivative · entry 2

NAMENYE ANDREW J · CIK 0001723219 · EVP, CLO, CHRO, & Corp Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,345

Underlying: Common Stock · 6,345 shares

Expires 2028-03-01

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

F2 · shares: The purpose of this amendment is to correct the number of Restricted Stock Units ("RSUs") and Performance Stock Units ("PSUs") granted to the reporting person on March 1, 2025, which were originally reported on a Form 4 filed on March 4, 2025 (the "Original Form 4"). The correct number of RSUs is 4,230 (instead of 4,842 as reported on the Original Form 4) and the correct number of PSUs is 6,345 (instead of 7,262 as reported on the Original Form 4). All other information reported in the Original Form 4 remains unchanged and is not repeated in this filing.

F4 · shares: These 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 2027. Earned PSUs, if any, will vest on March 1, 2028.

SEC source: 0000763744-25-000052 · wk-form4a_1744980019.xml · derivative · entry 1

NAMENYE ANDREW J · CIK 0001723219 · EVP, CLO, CHRO, & Corp Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,230

Underlying: Common Stock · 4,230 shares

Expires 2028-03-01

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

F2 · shares: The purpose of this amendment is to correct the number of Restricted Stock Units ("RSUs") and Performance Stock Units ("PSUs") granted to the reporting person on March 1, 2025, which were originally reported on a Form 4 filed on March 4, 2025 (the "Original Form 4"). The correct number of RSUs is 4,230 (instead of 4,842 as reported on the Original Form 4) and the correct number of PSUs is 6,345 (instead of 7,262 as reported on the Original Form 4). All other information reported in the Original Form 4 remains unchanged and is not repeated in this filing.

F3 · derivative.exercise_date: These RSUs vest ratably each year on the first through third anniversaries of the grant date, which was March 1, 2025.

SEC source: 0000763744-25-000006 · wk-form4_1735826051.xml · derivative · entry 2

REED DAVID A · CIK 0001192096 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 539

Underlying: Common Stock · 70 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 on January 15, 2026 and January 15, 2027 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 on January 15, 2026 and January 15, 2027 per the election of the director.

F3 · balance_after: Includes 5 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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: 0000763744-25-000004 · wk-form4_1735825916.xml · derivative · entry 2

Mains Stephanie K. · CIK 0001766980 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,063

Underlying: Common Stock · 279 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 18 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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: 0000763744-25-000002 · wk-form4_1735825841.xml · derivative · entry 2

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,845

Underlying: Common Stock · 279 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 94 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) December 13, 2024 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: 0000763744-24-000147 · wk-form4_1732741992.xml · nonDerivative · entry 2

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 373,145

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1(c) trading plan adopted by the Reporting Person on March 1, 2024.

SEC source: 0000763744-24-000147 · wk-form4_1732741992.xml · nonDerivative · entry 1

LIPPERT JASON · CIK 0001238361 · Director · President , CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 378,145

F1 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1(c) trading plan adopted by the Reporting Person on March 1, 2024.

SEC source: 0000763744-24-000123 · wk-form4_1727789409.xml · derivative · entry 2

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,472

Underlying: Common Stock · 239 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 82 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) September 13, 2024 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: 0000763744-24-000124 · wk-form4_1727789435.xml · derivative · entry 2

REED DAVID A · CIK 0001192096 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 464

Underlying: Common Stock · 60 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 on January 15, 2026 and January 15, 2027 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 on January 15, 2026 and January 15, 2027 per the election of the director.

F3 · balance_after: Includes 4 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) September 13, 2024 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: 0000763744-24-000122 · wk-form4_1727789382.xml · derivative · entry 2

Mains Stephanie K. · CIK 0001766980 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,766

Underlying: Common Stock · 239 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 13 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) September 13, 2024 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: 0000763744-24-000099 · wk-form4_1719865158.xml · derivative · entry 2

REED DAVID A · CIK 0001192096 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400

Underlying: Common Stock · 70 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 on January 15, 2026 and January 15, 2027 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 on January 15, 2026 and January 15, 2027 per the election of the director.

F3 · balance_after: Includes 3 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 14, 2024 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: 0000763744-24-000098 · wk-form4_1719865114.xml · derivative · entry 2

Mains Stephanie K. · CIK 0001766980 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,514

Underlying: Common Stock · 279 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 13 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 14, 2024 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: 0000763744-24-000097 · wk-form4_1719865074.xml · derivative · entry 2

GERO JAMES · CIK 0001213182 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,151

Underlying: Common Stock · 279 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 92 stock unit(s) received as a result of regular cash dividends paid on reported payment date(s) June 14, 2024 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: 0000763744-24-000087 · wk-form4_1715978066.xml · derivative · entry 3

SIRPILLA JOHN A. · CIK 0001793726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,354

Underlying: Common Stock · 1,354 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 16, 2025 or the date of the next year's annual meeting of stockholders.

F4 · derivative.expiration_date: These restricted stock units will vest in full on the earlier of May 16, 2025 or the date of the next year's annual meeting of stockholders.