X0508 4 2026-02-06 0 0001320695 TreeHouse Foods, Inc. THS 0001998597 JANA Partners Management, LP 888 SEVENTH AVENUE 24TH FLOOR NEW YORK NY 10106 1 0 1 1 (See Remarks) 0 Common Stock, par value $0.01 per share 2026-02-10 4 S 0 1959221 24.48 D 3862116 I See footnote Notional Derivative Agreements (obligation to buy) 2026-02-06 4 J 1 133790 D Common Stock 133790 474950 I See footnote Notional Derivative Agreements (obligation to buy) 2026-02-06 4 J 1 24834 D Common Stock 24834 22028 I See footnote Notional Derivative Agreements (obligation to buy) 2026-02-09 4 J 1 474950 D Common Stock 474950 0 I See footnote Notional Derivative Agreements (obligation to buy) 2026-02-09 4 J 1 22028 D Common Stock 22028 0 I See footnote The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.44 to $24.52, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. Certain of the previously reported notional principal amount derivative agreements in the form of cash settled swaps that JANA (defined below) was a party to with an initial reference termination date of April 6, 2026 settled in accordance with their terms at a settlement price of $24.60. Certain of the previously reported notional principal amount derivative agreements in the form of cash settled swaps that JANA was a party to with an initial reference termination date of September 22, 2026 settled in accordance with their terms at a settlement price of $24.60. Certain of the previously reported notional principal amount derivative agreements in the form of cash settled swaps that JANA (defined below) was a party to with an initial reference termination date of April 6, 2026 settled in accordance with their terms at a settlement price of $24.47. Certain of the previously reported notional principal amount derivative agreements in the form of cash settled swaps that JANA was a party to with an initial reference termination date of September 22, 2026 settled in accordance with their terms at a settlement price of $24.47. The transactions reported herein were effected for the purpose of rebalancing the holdings of funds and accounts managed by JANA. JANA Partners Management, LP ("JANA" or the "Reporting Person") is a private money management firm which beneficially owns the securities reported herein through various accounts under its management and control. JANA Partners Management GP, LLC (the "GP") is the general partner of JANA. Barry Rosenstein is the Founder of the GP and JANA. Barry Rosenstein, JANA, and the GP disclaim any beneficial ownership of any of the Issuer's securities reported herein except to the extent of their pecuniary interest therein, if any. The Reporting Person may be deemed to be a director by deputization for purposes of Section 16 under the Securities Exchange Act of 1934 by virtue of the fact that Scott Ostfeld, a Partner of the Reporting Person, currently serves on the board of directors of the Issuer. /s/ JANA Partners Management, LP, by Jennifer Fanjiang, Partner, Chief Legal Officer and Chief Compliance Officer 2026-02-10