X0508 4 2025-12-22 0 0001012100 SEALED AIR CORP/DE SEE 0001817266 Semach Dustin J. C/O SEALED AIR CORPORATION 2415 CASCADE POINTE BOULEVARD CHARLOTTE NC 28208 0 1 0 0 President and CEO 0 Common Stock 2025-12-22 4 F 0 24114 41.26 D 217389 D Common Stock 2025-12-22 4 F 0 4664 41.26 D 212725 D Common Stock 2025-12-22 4 F 0 3058 41.26 D 209667 D Common Stock 2025-12-22 4 F 0 3641 41.26 D 206026 D Common Stock 2025-12-22 4 F 0 6698 41.26 D 199328 D Common Stock 2025-12-22 4 F 0 12856 41.26 D 186472 D Common Stock 1065 I 401K Profit Sharing Shares withheld to meet tax liabilities associated with accelerated vesting of previously granted restricted stock units (RSUs). To mitigate the impact of Sections 280G and 4999 of the Internal Revenue Code of 1986, as amended, in connection with the transactions contemplated by the Agreement and Plan of Merger, dated as of Nov. 16, 2025, by and among Sword Purchaser, LLC, Sword Merger Sub, Inc., and Sealed Air, certain RSUs held by the Reporting Person vested on Dec. 22, 2025, subject to certain repayment conditions in the event that employment terminates for certain reasons prior to the date the RSUs otherwise would vest. Includes unvested restricted stock units. Total number of shares of Common Stock held in the name of the Reporting Person under the Sealed Air Corporation 401(k) and Profit-Sharing Plan as of the date of this Form 4 (as updated to correct an immaterial error). /s/Kristina Johnson, attorney-in-fact for Mr. Semach 2025-12-29