AMBAC FINL GROUP INC

Ticker: OSG CUSIP: 023139884 Class: Common Stock

Calamos Advisors LLC's Holding History (CIK: 0001316507)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 49,089 Value ($000) $382 Avg Close $8.55 Range $7.63 - $10.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	49,089	$382	$8.55	$7.63 - $10.38