144 0001551139 XXXXXXXX LIVE 0001359931 Protara Therapeutics, Inc. 001-36694 345 Park Avenue South Third Floor New York NY 10010 646-844-0337 667, L.P. Former Affiliate Common Stock Canaccord Genuity LLC

99 High Street, Suite 1200 Boston MA 02110

26755 161584.00 53587260 02/24/2026 NASDAQ Common Stock 12/08/2025 See Remark 2 Underwriter N 26755 12/08/2025 Cash Y (1) 667, L.P. is affiliated with Baker Brothers Life Sciences, L.P. Baker Bros. Advisors LP serves as the investment adviser to 667, L.P. and Baker Brothers Life Sciences, L.P. Baker Brothers Life Sciences, L.P. is filing separately for the sale of 322,039 shares of common stock ("Common Stock") of Protara Therapeutics, Inc. (the "Issuer"), which along with the reported sales in this form by 667, L.P. totals 348,794 shares of Common Stock. (2) Common Stock acquired in underwritten public offering. 02/24/2026 By: BAKER BROS. ADVISORS LP, mgmt company and IA to 667, L.P., /s/ Scott L. Lessing, President