Themes ETF Trust

03/13/2026 | Press release | Distributed by Public on 03/13/2026 13:16

Prospectus by Investment Company (Form 497)

Filed pursuant to Rule 497(e)

Registration No. 333-271700

THEMES ETF TRUST

Leverage Shares 2X Long GEMI Daily ETF

Leverage Shares 2X Long OSCR Daily ETF

Each a series (a "Fund") of Themes ETF Trust

Supplement dated March 13, 2026, to the currently effective Summary Prospectus and

Prospectus dated November 5, 2025, of each Fund

Effective March 13, 2026, each Fund is expected to allocate up to 100% of its assets as collateral for swap agreements or as premiums for purchased options contracts. If you have any questions, please call 1-866-5Themes (1-866-584-3637).

Please retain this Supplement for future reference

Themes ETF Trust published this content on March 13, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on March 13, 2026 at 19:16 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]