AMBC icon

Ambac
AMBC

Overview Fund Activity

145 hedge funds and large institutions have $256M invested in Ambac in 2025 Q2 according to their latest regulatory filings, with 32 funds opening new positions, 48 increasing their positions, 47 reducing their positions, and 59 closing their positions.

Holders
145
Holders Change
-29
Holders Change %
-16.67%
% of All Funds
1.95%
Holding in Top 10
6
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
32
Increased
48
Reduced
47
Closed
59
Calls
$59.3M
Puts
$2.15M
Net Calls
+$57.2M
Net Calls Change
-$18.4M

Top Buyers

1
CGIC
1
Continental General Insurance Company
Texas
$8.65M
2
GJL
2
Gendell Jeffrey L
$8.51M
3
Millennium Management
3
Millennium Management
New York
$7.07M
4
Marshall Wace
4
Marshall Wace
United Kingdom
$4.6M
5
PGCM
5
Prescott Group Capital Management
Oklahoma
$6.22M

Top Sellers

1
WSL
1
Western Standard LLC
California
$0
2
RP
2
Repertoire Partners
New York
$5.12M
3
American Century Companies
3
American Century Companies
Missouri
$3.11M
4
Morgan Stanley
4
Morgan Stanley
New York
$3.25M
5
BlackRock
5
BlackRock
New York
$32.6M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$32.6M 4,588,054 -306,626 -6%
Vanguard Group
2
Vanguard Group
Pennsylvania
$18.2M 2,568,440 -92,442 -3%
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$17M 2,395,737 -161,143 -6%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$10.9M 1,532,645 -3,026 -0.2%
CGIC
5
Continental General Insurance Company
Texas
$8.65M 1,218,349 +1,218,349 New
GJL
6
Gendell Jeffrey L
$8.51M 1,198,420 +596,134 +99%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$7.97M 1,122,616 +27,670 +3%
Citadel Advisors
8
Citadel Advisors
Florida
$7.94M 1,118,761 +16,039 +1%
BCC
9
Bain Capital Credit
Massachusetts
$7.87M 1,108,012 – –
Millennium Management
10
Millennium Management
New York
$7.07M 996,041 +487,355 +96%
State Street
11
State Street
Massachusetts
$6.81M 958,855 -73,439 -7%
PGCM
12
Prescott Group Capital Management
Oklahoma
$6.22M 875,977 +433,613 +98%
Hotchkis & Wiley Capital Management
13
Hotchkis & Wiley Capital Management
California
$5.63M 793,500 +235,820 +42%
RP
14
Repertoire Partners
New York
$5.12M 721,188 -452,686 -39%
WHCM
15
Wolf Hill Capital Management
Connecticut
$4.92M 693,444 – –
Marshall Wace
16
Marshall Wace
United Kingdom
$4.6M 648,155 +442,750 +216%
Deutsche Bank
17
Deutsche Bank
Germany
$4.58M 645,360 -77,890 -11%
TAM
18
Third Avenue Management
New York
$4.28M 603,391 +236,930 +65%
BCL
19
Bracebridge Capital LLC
Massachusetts
$4.11M 579,234 – –
Jane Street
20
Jane Street
New York
$3.64M 512,443 -211,651 -29%
Goldman Sachs
21
Goldman Sachs
New York
$3.4M 479,383 -200,796 -30%
NL
22
Nuveen LLC
North Carolina
$3.32M 466,978 +184,321 +65%
Squarepoint
23
Squarepoint
New York
$3.31M 466,369 +233,986 +101%
Morgan Stanley
24
Morgan Stanley
New York
$3.25M 457,631 -400,409 -47%
Barclays
25
Barclays
United Kingdom
$3.23M 454,827 -34,919 -7%
1
2 3 4 5