AMBAC FINL GROUP INC

Ticker: OSG CUSIP: 023139884 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q1 2017

Shares 40,013 Value ($000) $755 Avg Close $21.04 Range $17.39 - $23.55

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	40,013	$755	$21.04	$17.39 - $23.55