Director/PDMR Shareholding

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Timothy J. Bernlohr

2

Reason for the notification

a)

Position/status

Non-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

Vesting of Awards granted under the Westrock 2016 Incentive Stock Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

Nil

4,190

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

19 July 2024

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

These awards vested in accordance with the terms of the Transaction Agreement between Smurfit Kappa Group plc, Smurfit Westrock plc and Sun Merger Sub, LLC, dated September 12, 2023.

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Terrell K. Crews

2

Reason for the notification

a)

Position/status

 Non-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

Vesting of Awards granted under the Westrock 2016 Incentive Stock Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

Nil

4,190

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

19 July 2024

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

These awards vested in accordance with the terms of the Transaction Agreement between Smurfit Kappa Group plc, Smurfit Westrock plc and Sun Merger Sub, LLC, dated September 12, 2023.

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Suzan F. Harrison

2

Reason for the notification

a)

Position/status

 Non-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

Vesting of Awards granted under the Westrock 2016 Incentive Stock Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

Nil

4,190

d)

Aggregated information

N/A

- Aggregated volume

- Price

e)

Date of the transaction

19 July 2024

f)

Place of the transaction

N/A (Outside a trading venue)

g)

Additional Information

These awards vested in accordance with the terms of the Transaction Agreement between Smurfit Kappa Group plc, Smurfit Westrock plc and Sun Merger Sub, LLC, dated September 12, 2023.