Ambac Financial Group Inc

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Ambac Financial Group Inc
TickerAMBC
CIK #0000874501
CUSIP023139884
SectorFinance - Surety Insurance
AddressOne State St Plz, New York, NY 10004
Source [EDGAR]
CIK Filing 2011 - 2025
[0000874501] 10-K
[0000874501] 10-Q
[0000874501] 3
[0000874501] 4
[0000874501] 8-K
[0000874501] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Susquehanna Securities LLC Ambac Financial Group Inc [2025-08-14] 0.0
King Theodore Walker Cheng-De Ambac Financial Group Inc [2024-04-05] 81946.26
Dimensional Fund Advisors LP Ambac Financial Group Inc [2024-02-09] 5.8
BlackRock Inc Ambac Financial Group Inc [2023-01-20] 14.8
BlackRock Inc Ambac Financial Group Inc [2019-01-10] 13.7
Vanguard Group Inc Ambac Financial Group Inc [2018-12-10] 10.19
Raging Capital Management LLC Ambac Financial Group Inc [2018-02-14] 4.98
Dimensional Fund Advisors LP Ambac Financial Group Inc [2017-02-09] 5.7
BlackRock Inc Ambac Financial Group Inc [2014-01-28] 5.4
Form 3/4/5 Filer 2011 - 2025
Ambac Financial Group Inc
LeBlanc Claude
McGinnis Daniel
Trick David
Smith R Sharon
Ksenak Stephen Michael
Price Michael D
Haft Ian David
Iglesias Lisa G
Lammtennant Joan M
Matus Kristi Ann
Stein Jeffrey Scott
Eisman Robert Bryan
Barranco David
Herzog David L
Prieur C James
Greene Alexander David
Reilly Michael Francis
Nader Tavakoli
Mandel Victor E
Bullis Eugene M
Adams Diana
Matanle Cathleen
Bruce IAIN H
Theobald Thomas C
Form 13F Holdings
Firm Period DFND Voting Shares
Repertoire Partners LP [2025-06-30] SOLE 721,188 6,734,388
BlackRock, Inc. [2025-06-30] SOLE 4,481,165 4,588,054
Susquehanna International Group LLP [2025-06-30] OTR 940,583 2,677,783
Vanguard Group Inc [2025-06-30] SOLE 0 2,530,024
Dimensional Fund Advisors LP [2025-06-30] SOLE 2,245,935 2,294,207
Caption Management LLC [2025-06-30] SOLE 2,275,274 2,275,274
FMR LLC [2025-06-30] DFND 1,531,433 1,532,645
Citadel Advisors LLC [2025-06-30] DFND 1,366,561 1,366,561
Continental General Insurance Co [2025-06-30] DFND 0 1,218,349
Gendell Jeffrey L [2025-06-30] DFND 0 1,198,420
Geode Capital Management LLC [2025-06-30] DFND 1,122,616 1,122,616
Bain Capital Credit LP [2025-06-30] OTR 1,108,012 1,108,012
Millennium Management LLC [2025-06-30] SOLE 996,041 996,041
State Street Corp [2025-06-30] DFND 905,472 958,855
Prescott Group Capital Management LLC [2025-06-30] SOLE 875,977 875,977
Hotchkis & Wiley Capital Management LLC [2025-06-30] SOLE 636,700 793,500
Wolf Hill Capital Management LP [2025-06-30] SOLE 693,444 693,444
Marshall Wace LLP [2025-06-30] OTR 0 648,155
Deutsche Bank AG [2025-06-30] DFND 0 645,360
Third Avenue Management LLC [2025-06-30] SOLE 603,391 603,391
Squarepoint Ops LLC [2025-06-30] DFND 0 599,169
Jane Street Group LLC [2025-06-30] DFND 524,743 580,743
Bracebridge Capital LLC [2025-06-30] SOLE 579,234 579,234
Goldman Sachs Group Inc [2025-06-30] DFND 478,818 479,383
Nuveen, LLC [2025-06-30] DFND 466,978 466,978
Morgan Stanley [2025-06-30] DFND 455,268 457,631
American Century Companies Inc [2025-06-30] DFND 438,335 438,335
Charles Schwab Investment Management Inc [2025-06-30] SOLE 387,959 387,959
Northern Trust Corp [2025-06-30] DFND 380,743 381,869
UBS Group AG [2025-06-30] DFND 359,965 360,265
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