Director/PDMR Shareholding

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Anthony Smurfit

2

Reason for the notification

a)

Position/status

President & Group Chief Executive Officer /Executive Director

b)

Initial notification /Amendment

Initial Notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Smurfit Westrock plc

b)

LEI

635400EGSEOPDW2EXS14

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Ordinary Shares of $0.001 each

Identification code

IE00028FXN24

b)

Nature of the transaction

1. Grant of the 2026 PSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

2. Grant of the 2026 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

3. Vesting of the first tranche of the 2025 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1. Nil

253,258

2. Nil

84,419

3. Nil

20,592

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

3. Shares are being delivered on a net settlement basis

Net settlement price was $42.20

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

 Ken Bowles

2

Reason for the notification

a)

Position/status

Executive Vice President & Group Chief Financial Officer /Executive Director

b)

Initial notification /Amendment

Initial Notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Smurfit Westrock plc

b)

LEI

635400EGSEOPDW2EXS14

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Ordinary Shares of $0.001 each

Identification code

IE00028FXN24

b)

Nature of the transaction

1. Grant of the 2026 PSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

2. Grant of the 2026 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

3. Vesting of the first tranche of 2025 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1. Nil

75,533

2. Nil

25,178

3. Nil

3,064

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

3. Shares are being delivered on a net settlement basis

Net settlement price was $42.20

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Laurent Sellier

2

Reason for the notification

a)

Position/status

President & Chief Executive Officer (North America including Mexico)

b)

Initial notification /Amendment

Initial Notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Smurfit Westrock plc

b)

LEI

635400EGSEOPDW2EXS14

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Ordinary Shares of $0.001 each

Identification code

IE00028FXN24

b)

Nature of the transaction

1. Grant of the 2026 PSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

2. Grant of the 2026 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

3. Vesting of the first tranche of 2025 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1. Nil

75,533

2. Nil

25,178

3. Nil

3,888

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

3. Shares are being delivered on a net settlement basis

Net settlement price was $42.20

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Saverio Mayer

2

Reason for the notification

a)

Position/status

President & Chief Executive Officer (Europe, MEA, APAC)

b)

Initial notification /Amendment

Initial Notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Smurfit Westrock plc

b)

LEI

635400EGSEOPDW2EXS14

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Ordinary Shares of $0.001 each

Identification code

IE00028FXN24

b)

Nature of the transaction

1. Grant of the 2026 PSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

2. Grant of the 2026 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

3. Vesting of the first tranche of 2025 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1. Nil

63,092

2. Nil

21,031

3. Nil

3,092

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

3. Shares are being delivered on a net settlement basis

Net settlement price was $42.20

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Ben Garren

2

Reason for the notification

a)

Position/status

Executive Vice President & Group General Counsel

b)

Initial notification /Amendment

Initial Notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Smurfit Westrock plc

b)

LEI

635400EGSEOPDW2EXS14

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Ordinary Shares of $0.001 each

Identification code

IE00028FXN24

b)

Nature of the transaction

1. Grant of the 2026 PSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

2. Grant of the 2026 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

3. Vesting of the first tranche of 2025 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1. Nil

23,104

2. Nil

7,701

3. Nil

1,807

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

3. Shares are being delivered on a net settlement basis

Net settlement price was $42.20

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Alvaro Henao

2

Reason for the notification

a)

Position/status

President & Chief Executive Officer, LATAM

b)

Initial notification /Amendment

Initial Notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

Smurfit Westrock plc

b)

LEI

635400EGSEOPDW2EXS14

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Ordinary Shares of $0.001 each

Identification code

IE00028FXN24

b)

Nature of the transaction

1. Grant of the 2026 PSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

2. Grant of the 2026 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

3. Vesting of the first tranche of 2025 RSU Conditional Award under the Smurfit Westrock 2024 Long-Term Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

1. Nil

21,771

2. Nil

7,257

3. Nil

986

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

3. Shares are being delivered on a net settlement basis

Net settlement price was $42.20