AMBAC FINANCIAL GROUP INC (AMBC) Institutional Ownership Changes & 13F Activity

AMBAC FINANCIAL GROUP INC (AMBC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Bain Capital Credit, Lp, Caption Management, Llc, Bracebridge Capital, Llc, Susquehanna International Group, Llp, and Russell Investments Group, Ltd..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Vela Investment Management, LlcBuy+178,752—178,752$1.39MQ4 2025Aug 27, 2026
Advisors Asset Management, Inc.Sell-101-100.0%0$0.00Q4 2025Aug 26, 2026
Hsbc Holdings PlcBuy+92,040—92,040$713.34KQ4 2025Mar 06, 2026
Virtu Financial LlcBuy+19,235—19,235$150.00KQ4 2025Feb 23, 2026
Bain Capital Credit, LpBuy+1,108,012—1,108,012$8.62MQ4 2025Feb 17, 2026
Caption Management, LlcBuy+1,071,094—1,071,094$8.33MQ4 2025Feb 17, 2026
Bracebridge Capital, LlcBuy+579,234—579,234$4.51MQ4 2025Feb 17, 2026
Susquehanna International Group, LlpBuy+526,588—526,588$4.10MQ4 2025Feb 17, 2026
Russell Investments Group, Ltd.Buy+346,258—346,258$2.69MQ4 2025Feb 17, 2026
Bank Of America CorpBuy+330,901—330,901$2.57MQ4 2025Feb 17, 2026
Northern Trust CorpBuy+323,146—323,146$2.51MQ4 2025Feb 17, 2026
Millennium Management LlcBuy+303,282—303,282$2.36MQ4 2025Feb 17, 2026
Citadel Advisors LlcBuy+287,283—287,283$2.24MQ4 2025Feb 17, 2026
Bridgeway Capital Management, LlcBuy+245,387—245,387$1.91MQ4 2025Feb 17, 2026
Schonfeld Strategic Advisors LlcBuy+169,824—169,824$1.32MQ4 2025Feb 17, 2026
Exoduspoint Capital Management, LpBuy+109,765—109,765$853.97KQ4 2025Feb 17, 2026
Point72 Asset Management, L.P.Buy+103,544—103,544$805.57KQ4 2025Feb 17, 2026
Jump Financial, LlcBuy+85,213—85,213$662.96KQ4 2025Feb 17, 2026
Engineers Gate Manager LpBuy+81,585—81,585$634.73KQ4 2025Feb 17, 2026
Quantinno Capital Management LpBuy+78,678—78,678$612.12KQ4 2025Feb 17, 2026
Price T Rowe Associates IncBuy+70,941—70,941$552.00KQ4 2025Feb 17, 2026
Aqr Capital Management LlcBuy+70,128—70,128$545.60KQ4 2025Feb 17, 2026
Creative PlanningBuy+68,537—68,537$533.22KQ4 2025Feb 17, 2026
Two Sigma Investments, LpBuy+45,044—45,044$350.44KQ4 2025Feb 17, 2026
D. E. Shaw & Co., Inc.Buy+44,126—44,126$343.30KQ4 2025Feb 17, 2026
Balyasny Asset Management L.P.Buy+42,917—42,917$333.89KQ4 2025Feb 17, 2026
Alliancebernstein L.P.Buy+37,530—37,530$291.98KQ4 2025Feb 17, 2026
Xtx Topco LtdBuy+31,058—31,058$241.63KQ4 2025Feb 17, 2026
Aquatic Capital Management LlcBuy+23,067—23,067$179.46KQ4 2025Feb 17, 2026
Quadrature Capital LtdBuy+21,219—21,219$165.08KQ4 2025Feb 17, 2026
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Frequently asked questions about AMBC activity

  • Which institutional owners are buying AMBC?

    Institutional owners buying AMBC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AMBC activity?

    "Buy" means an investor increased their reported position in AMBC compared to the prior reporting period. This reflects growing exposure to AMBAC FINANCIAL GROUP INC (AMBC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AMBC increasing?

    Institutional interest in AMBC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.