Institutional shares held 39.5 Million
10M calls
617K puts
Total value of holdings $329M
$83.4M calls
$5.14M puts
Market Cap $375M
44,962,900 Shares Out.
Institutional ownership 87.9%
# of Institutions 172


Latest Institutional Activity in AMBC

Top Purchases

Q3 2025
Sg Americas Securities, LLC Shares Held: 75.4K ($628K)
Q3 2025
Cwm, LLC Shares Held: 6.96K ($58K)
Q3 2025
Signaturefd, LLC Shares Held: 754 ($6.28K)
Q3 2025
Farther Finance Advisors, LLC Shares Held: 105 ($875)
Q3 2025
Harbor Capital Advisors, Inc. Shares Held: 1.15K ($9.58K)

Top Sells

Q3 2025
Cerity Partners LLC Shares Held: 11.5K ($95.7K)
Q3 2025
Gamma Investing LLC Shares Held: 627 ($5.22K)
Q3 2025
Nisa Investment Advisors, LLC Shares Held: 970 ($8.08K)
Q2 2025
Repertoire Partners LP Shares Held: 721K ($6.01M)
Q2 2025
American Century Companies Inc Shares Held: 438K ($3.65M)

About AMBC

Ambac Financial Group, Inc., a financial services holding company, provides financial guarantees in the United States, the United Kingdom, Italy, Austria, Australia, France, and Internationally. It offers financial guarantee insurance policies; specialty property & casualty program insurance; credit derivative contracts; and interest rate derivative transactions, as well as managing general agency / underwriting services. The company was incorporated in 1991 and is headquartered in New York, New York.


Insider Transactions at AMBC

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
2.21M Shares
From 23 Insiders
Conversion of derivative security 1.68M shares
Open market or private purchase 182K shares
Grant, award, or other acquisition 28.3K shares
Exercise of conversion of derivative security 312K shares
Sell / Disposition
699K Shares
From 7 Insiders
Payment of exercise price or tax liability 699K shares

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