Calamos Timpani Active Growth Opportunities ETF — new fund registration

Calamos ETF Trust registered 1 new fund series on Form 485APOS, filed 2026-04-07. Featured series: Calamos Timpani Active Growth Opportunities ETF.

Registration

• Registrant / trust: Calamos ETF Trust
• CIK: 0001579881
• Form: 485APOS
• Filed: 2026-04-07
• State of incorporation: DE
• Accession: 0001104659-26-040498

Series & classes (1)

Fees (from the effective prospectus)

• 12b-1 fee: 0.00%
• Gross expense ratio: 0.79%
• Management fee: 0.79%
• Other expenses: 0.00%

Investment objective

Calamos Timpani Active SMID Growth ETF (the Fund) seeks capital appreciation.

Other filings by this registrant (15)

• 485APOS — 2026-07-31 (1 new series)
• 485APOS — 2026-07-31 (1 new series)
• 485APOS — 2026-04-07 (1 new series)
• 485APOS — 2026-01-28 (1 new series)
• 485APOS — 2026-01-28 (1 new series)
• 485APOS — 2025-09-29
• 485APOS — 2025-09-29
• 485APOS — 2025-09-29
• 485APOS — 2025-09-29
• 485APOS — 2025-08-22 (1 new series)
• 485APOS — 2025-08-20
• 485APOS — 2025-07-16 (1 new series)

More

• Registrant profile: Calamos ETF Trust
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