December 31, 2025 Registration Statement Nos. 333-270004 and 333-270004-01; Rule 424(b)(3)

Amendment no. 1 to pricing supplement dated December 26, 2025 to product supplement no. 4-I dated April 13, 2023, underlying supplement no. 5-III dated

MerQube US Tech+ Vol Advantage Index due

December 31, 2030

Fully and Unconditionally Guaranteed by JPMorgan Chase & Co.

Notwithstanding anything to the contrary set forth in the pricing supplement dated December 26, 2025, related to the notes referred to

above (the “pricing supplement”), the Review Dates are as set forth below:

Review Dates*: December 31, 2026, March 29, 2027, June 28, 2027, September 27, 2027, December 27, 2027, March 27, 2028, June

26, 2028, September 26, 2028, December 26, 2028, March 26, 2029, June 26, 2029, September 26, 2029, December 26, 2029, March

26, 2030, June 26, 2030, September 26, 2030 and December 26, 2030 (final Review Date)

* Subject to postponement in the event of a market disruption event and as described under “Supplemental Terms of the Notes —

Postponement of a Determination Date — Notes Linked Solely to an Index” in the accompanying underlying supplement and “General

“Selected Risk Considerations” beginning on page PS-7 of the pricing supplement.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of the

notes or passed upon the accuracy or the adequacy of this amendment, the pricing supplement or the accompanying product

supplement, underlying supplement, prospectus supplement, prospectus and prospectus addendum. Any representation to the

contrary is a criminal offense.

You should read this amendment together with the pricing supplement and the related product supplement, underlying supplement,

prospectus supplement and prospectus and prospectus addendum, each of which can be accessed via the hyperlinks below. Please

also see “Additional Terms Specific to the Notes” in the pricing supplement.