AMBAC FINL GROUP INC

Ticker: OSG CUSIP: 023139884 Class: Common Stock

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q4 2025

Shares 361,424 Value ($000) $2,812 Avg Close $8.55 Range $7.63 - $10.38

Q3 2025

Shares 382,572 Value ($000) $3,191 Avg Close $8.45 Range $6.86 - $10.05

Q2 2025

Shares 387,959 Value ($000) $2,755 Avg Close $7.45 Range $5.99 - $8.69

Q1 2025

Shares 378,764 Value ($000) $3,314 Avg Close $10.53 Range $7.92 - $12.84

Q4 2024

Shares 505,126 Value ($000) $6,390 Avg Close $12.05 Range $10.83 - $13.64

Q3 2024

Shares 553,399 Value ($000) $6,204 Avg Close $11.69 Range $10.12 - $13.32

Q2 2024

Shares 599,068 Value ($000) $7,680 Avg Close $15.25 Range $11.80 - $18.45

Q1 2024

Shares 666,072 Value ($000) $10,411 Avg Close $15.77 Range $14.53 - $17.80

Q4 2023

Shares 649,577 Value ($000) $10,705 Avg Close $13.90 Range $11.26 - $16.60

Q3 2023

Shares 640,084 Value ($000) $7,719 Avg Close $13.44 Range $11.99 - $14.64

Q2 2023

Shares 625,618 Value ($000) $8,909 Avg Close $14.63 Range $13.18 - $16.10

Q1 2023

Shares 672,523 Value ($000) $10,411 Avg Close $16.18 Range $14.17 - $17.75

Q4 2022

Shares 678,133 Value ($000) $11,827 Avg Close $14.86 Range $12.55 - $17.59

Q3 2022

Shares 682,201 Value ($000) $8,699 Avg Close $13.32 Range $11.15 - $15.59

Q2 2022

Shares 693,256 Value ($000) $7,869 Avg Close $9.49 Range $7.24 - $11.85

Q1 2022

Shares 648,776 Value ($000) $6,748 Avg Close $13.55 Range $8.14 - $16.64

Q4 2021

Shares 626,721 Value ($000) $10,059 Avg Close $15.71 Range $14.07 - $17.86

Q3 2021

Shares 594,095 Value ($000) $8,508 Avg Close $14.28 Range $13.09 - $15.94

Q2 2021

Shares 562,349 Value ($000) $8,807 Avg Close $16.07 Range $13.94 - $17.82

Q1 2021

Shares 520,259 Value ($000) $8,710 Avg Close $16.34 Range $14.13 - $18.63

Q4 2020

Shares 495,404 Value ($000) $7,620 Avg Close $14.74 Range $11.92 - $18.19

Q3 2020

Shares 486,703 Value ($000) $6,216 Avg Close $12.88 Range $11.14 - $14.75

Q2 2020

Shares 498,642 Value ($000) $7,141 Avg Close $14.62 Range $10.58 - $17.64

Q1 2020

Shares 555,633 Value ($000) $6,857 Avg Close $19.17 Range $8.74 - $22.90

Q4 2019

Shares 539,145 Value ($000) $11,630 Avg Close $20.51 Range $19.05 - $21.95

Q3 2019

Shares 538,171 Value ($000) $10,522 Avg Close $18.37 Range $16.69 - $20.74

Q2 2019

Shares 514,890 Value ($000) $8,676 Avg Close $17.07 Range $14.44 - $19.28

Q1 2019

Shares 513,850 Value ($000) $9,311 Avg Close $19.10 Range $17.01 - $21.01

Q4 2018

Shares 626,812 Value ($000) $10,807 Avg Close $18.36 Range $15.02 - $21.38

Q3 2018

Shares 654,237 Value ($000) $13,360 Avg Close $20.88 Range $19.30 - $23.34

Q2 2018

Shares 633,882 Value ($000) $12,583 Avg Close $18.46 Range $15.17 - $21.11

Q1 2018

Shares 469,733 Value ($000) $7,366 Avg Close $15.46 Range $13.96 - $17.09

Q4 2017

Shares 416,019 Value ($000) $6,648 Avg Close $15.38 Range $13.17 - $17.79

Q3 2017

Shares 382,266 Value ($000) $6,598 Avg Close $18.46 Range $16.75 - $22.02

Q2 2017

Shares 362,024 Value ($000) $6,282 Avg Close $17.77 Range $15.67 - $20.28

Q1 2017

Shares 419,690 Value ($000) $7,916 Avg Close $21.04 Range $17.39 - $23.55

Q4 2016

Shares 584,866 Value ($000) $13,160 Avg Close $21.85 Range $17.75 - $27.25

Q3 2016

Shares 408,426 Value ($000) $7,511 Avg Close $17.94 Range $15.42 - $19.35

Q2 2016

Shares 362,132 Value ($000) $5,961 Avg Close $16.04 Range $14.42 - $17.77

Q1 2016

Shares 342,071 Value ($000) $5,405 Avg Close $14.47 Range $11.92 - $17.32

Q4 2015

Shares 272,419 Value ($000) $3,839 Avg Close $15.37 Range $12.72 - $17.39

Q3 2015

Shares 216,358 Value ($000) $3,131 Avg Close $16.22 Range $14.22 - $19.17

Q2 2015

Shares 169,847 Value ($000) $2,827 Avg Close $23.61 Range $16.44 - $25.91

Q1 2015

Shares 134,790 Value ($000) $3,262 Avg Close $25.43 Range $23.99 - $27.53

Q4 2014

Shares 120,999 Value ($000) $2,965 Avg Close $23.29 Range $18.60 - $26.74

Q3 2014

Shares 120,234 Value ($000) $2,658 Avg Close $23.53 Range $21.86 - $27.54

Q2 2014

Shares 117,390 Value ($000) $3,206 Avg Close $29.00 Range $26.37 - $32.20

Q1 2014

Shares 117,784 Value ($000) $3,655 Avg Close $27.62 Range $22.00 - $35.61

Q4 2013

Shares 106,049 Value ($000) $2,605 Avg Close $20.94 Range $15.03 - $25.16

Q3 2013

Shares 95,951 Value ($000) $1,683 Avg Close $22.78 Range $17.64 - $25.70

Q2 2013

Shares 91,198 Value ($000) $2,178 Avg Close $24.24 Range $18.00 - $27.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	361,424	$2,812	$8.55	$7.63 - $10.38
Q3 2025	382,572	$3,191	$8.45	$6.86 - $10.05
Q2 2025	387,959	$2,755	$7.45	$5.99 - $8.69
Q1 2025	378,764	$3,314	$10.53	$7.92 - $12.84
Q4 2024	505,126	$6,390	$12.05	$10.83 - $13.64
Q3 2024	553,399	$6,204	$11.69	$10.12 - $13.32
Q2 2024	599,068	$7,680	$15.25	$11.80 - $18.45
Q1 2024	666,072	$10,411	$15.77	$14.53 - $17.80
Q4 2023	649,577	$10,705	$13.90	$11.26 - $16.60
Q3 2023	640,084	$7,719	$13.44	$11.99 - $14.64
Q2 2023	625,618	$8,909	$14.63	$13.18 - $16.10
Q1 2023	672,523	$10,411	$16.18	$14.17 - $17.75
Q4 2022	678,133	$11,827	$14.86	$12.55 - $17.59
Q3 2022	682,201	$8,699	$13.32	$11.15 - $15.59
Q2 2022	693,256	$7,869	$9.49	$7.24 - $11.85
Q1 2022	648,776	$6,748	$13.55	$8.14 - $16.64
Q4 2021	626,721	$10,059	$15.71	$14.07 - $17.86
Q3 2021	594,095	$8,508	$14.28	$13.09 - $15.94
Q2 2021	562,349	$8,807	$16.07	$13.94 - $17.82
Q1 2021	520,259	$8,710	$16.34	$14.13 - $18.63
Q4 2020	495,404	$7,620	$14.74	$11.92 - $18.19
Q3 2020	486,703	$6,216	$12.88	$11.14 - $14.75
Q2 2020	498,642	$7,141	$14.62	$10.58 - $17.64
Q1 2020	555,633	$6,857	$19.17	$8.74 - $22.90
Q4 2019	539,145	$11,630	$20.51	$19.05 - $21.95
Q3 2019	538,171	$10,522	$18.37	$16.69 - $20.74
Q2 2019	514,890	$8,676	$17.07	$14.44 - $19.28
Q1 2019	513,850	$9,311	$19.10	$17.01 - $21.01
Q4 2018	626,812	$10,807	$18.36	$15.02 - $21.38
Q3 2018	654,237	$13,360	$20.88	$19.30 - $23.34
Q2 2018	633,882	$12,583	$18.46	$15.17 - $21.11
Q1 2018	469,733	$7,366	$15.46	$13.96 - $17.09
Q4 2017	416,019	$6,648	$15.38	$13.17 - $17.79
Q3 2017	382,266	$6,598	$18.46	$16.75 - $22.02
Q2 2017	362,024	$6,282	$17.77	$15.67 - $20.28
Q1 2017	419,690	$7,916	$21.04	$17.39 - $23.55
Q4 2016	584,866	$13,160	$21.85	$17.75 - $27.25
Q3 2016	408,426	$7,511	$17.94	$15.42 - $19.35
Q2 2016	362,132	$5,961	$16.04	$14.42 - $17.77
Q1 2016	342,071	$5,405	$14.47	$11.92 - $17.32
Q4 2015	272,419	$3,839	$15.37	$12.72 - $17.39
Q3 2015	216,358	$3,131	$16.22	$14.22 - $19.17
Q2 2015	169,847	$2,827	$23.61	$16.44 - $25.91
Q1 2015	134,790	$3,262	$25.43	$23.99 - $27.53
Q4 2014	120,999	$2,965	$23.29	$18.60 - $26.74
Q3 2014	120,234	$2,658	$23.53	$21.86 - $27.54
Q2 2014	117,390	$3,206	$29.00	$26.37 - $32.20
Q1 2014	117,784	$3,655	$27.62	$22.00 - $35.61
Q4 2013	106,049	$2,605	$20.94	$15.03 - $25.16
Q3 2013	95,951	$1,683	$22.78	$17.64 - $25.70
Q2 2013	91,198	$2,178	$24.24	$18.00 - $27.25