AMBAC FINL GROUP INC

Ticker: OSG CUSIP: 023139884 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q4 2023

Shares 526 Value ($000) $9 Avg Close $13.90 Range $11.26 - $16.60

Q2 2023

Shares 2,674 Value ($000) $38 Avg Close $14.63 Range $13.18 - $16.10

Q1 2023

Shares 2,674 Value ($000) $41 Avg Close $16.18 Range $14.17 - $17.75

Q1 2017

Shares 643,960 Value ($000) $12,143 Avg Close $21.04 Range $17.39 - $23.55

Q4 2016

Shares 412,519 Value ($000) $9,283 Avg Close $21.85 Range $17.75 - $27.25

Q3 2016

Shares 412,519 Value ($000) $7,585 Avg Close $17.94 Range $15.42 - $19.35

Q2 2016

Shares 412,519 Value ($000) $6,790 Avg Close $16.04 Range $14.42 - $17.77

Q1 2016

Shares 377,832 Value ($000) $5,970 Avg Close $14.47 Range $11.92 - $17.32

Q4 2015

Shares 203,618 Value ($000) $2,869 Avg Close $15.37 Range $12.72 - $17.39

Q3 2015

Shares 2,562 Value ($000) $38 Avg Close $16.22 Range $14.22 - $19.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	526	$9	$13.90	$11.26 - $16.60
Q2 2023	2,674	$38	$14.63	$13.18 - $16.10
Q1 2023	2,674	$41	$16.18	$14.17 - $17.75
Q1 2017	643,960	$12,143	$21.04	$17.39 - $23.55
Q4 2016	412,519	$9,283	$21.85	$17.75 - $27.25
Q3 2016	412,519	$7,585	$17.94	$15.42 - $19.35
Q2 2016	412,519	$6,790	$16.04	$14.42 - $17.77
Q1 2016	377,832	$5,970	$14.47	$11.92 - $17.32
Q4 2015	203,618	$2,869	$15.37	$12.72 - $17.39
Q3 2015	2,562	$38	$16.22	$14.22 - $19.17