127 hedge funds and large institutions have $486M invested in Ambac in 2015 Q4 according to their latest regulatory filings, with 23 funds opening new positions, 43 increasing their positions, 35 reducing their positions, and 21 closing their positions.

Holders
127
Holders Change
+2
Holders Change %
+1.6%
% of All Funds
3.34%
Holding in Top 10
5
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-16.67%
% of All Funds
0.13%
New
23
Increased
43
Reduced
35
Closed
21
Calls
$862K
Puts
$1.15M
Net Calls
-$287K
Net Calls Change
-$5.69M
Name Market Value Shares Shares
Change
Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$31.6M 2,240,260
Vanguard Group
2
Vanguard Group
Pennsylvania
$31.5M 2,236,252 +65,906 +3%
CS
3
Credit Suisse
Switzerland
$29.8M 2,114,292 -158,927 -7%
CCA
4
Canyon Capital Advisors
Texas
$28.3M 2,011,688 -95,254 -5%
TCI Fund Management
5
TCI Fund Management
United Kingdom
$28M 1,985,785
AGC
6
Alden Global Capital
Florida
$27.3M 1,935,150 +100,000 +5%
FTCM
7
Fir Tree Capital Management
New York
$26.5M 1,877,954
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$22.5M 1,593,942 +14,163 +0.9%
RCM
9
Raging Capital Management
New Jersey
$22.3M 1,586,064 +390,763 +33%
BFA
10
BlackRock Fund Advisors
California
$13.8M 982,458 +17,073 +2%
BIT
11
BlackRock Institutional Trust
California
$13.4M 951,973 -1,358 -0.1%
CP
12
Centerbridge Partners
New York
$12.8M 910,841 -688,064 -43%
SC
13
Sessa Capital
New York
$11.3M 801,169 +251,169 +46%
State Street
14
State Street
Massachusetts
$11M 783,691 +18,347 +2%
Goldman Sachs
15
Goldman Sachs
New York
$10.8M 763,697 +16,222 +2%
Susquehanna International Group
16
Susquehanna International Group
Pennsylvania
$9.8M 695,845 -282,999 -29%
Millennium Management
17
Millennium Management
New York
$9.35M 663,351 -347,700 -34%
WA
18
Whitebox Advisors
Minnesota
$8.73M 619,658 +52,929 +9%
NI
19
Numeric Investors
Massachusetts
$7.99M 567,320 +567,320 New
Northern Trust
20
Northern Trust
Illinois
$6.91M 490,648 +16,822 +4%
Invesco
21
Invesco
Georgia
$6.27M 444,646 +32,831 +8%
RA
22
Royce & Associates
New York
$6.06M 430,088 -64,500 -13%
GJL
23
Gendell Jeffrey L
$5.74M 407,116 +163,100 +67%
Arrowstreet Capital
24
Arrowstreet Capital
Massachusetts
$5.33M 378,190 +28,396 +8%
Wells Fargo
25
Wells Fargo
California
$5.04M 357,769 +311,686 +676%