135 hedge funds and large institutions have $599M invested in Ambac in 2021 Q4 according to their latest regulatory filings, with 19 funds opening new positions, 53 increasing their positions, 31 reducing their positions, and 17 closing their positions.

Holders
135
Holders Change
+2
Holders Change %
+1.5%
% of All Funds
2.08%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.03%
New
19
Increased
53
Reduced
31
Closed
17
Calls
$10.1M
Puts
$3.7M
Net Calls
+$6.44M
Net Calls Change
+$3.27M
Name Market Value Shares Shares
Change
Shares
Change %
BlackRock
1
BlackRock
New York
$104M 6,453,584 +126,757 +2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$80M 4,981,390 +124,312 +3%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$33.1M 2,060,260
Goldman Sachs
4
Goldman Sachs
New York
$31.5M 1,962,711 +19,593 +1%
CU
5
CQS (US)
New York
$30.3M 1,890,000
State Street
6
State Street
Massachusetts
$25.3M 1,576,858 +91,066 +6%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$23.7M 1,475,153 +113,493 +8%
Morgan Stanley
8
Morgan Stanley
New York
$20.2M 1,257,134 -292,375 -19%
BGIM
9
Boussard & Gavaudan Investment Management
United Kingdom
$17.7M 1,100,386 -117,520 -10%
DKCM
10
Davidson Kempner Capital Management
New York
$15.8M 984,385
BCL
11
Bracebridge Capital LLC
Massachusetts
$12.8M 799,234
Geode Capital Management
12
Geode Capital Management
Massachusetts
$12.2M 761,044 +10,928 +1%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
13
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$11.9M 744,495 +309,395 +71%
Barclays
14
Barclays
United Kingdom
$11.6M 720,623 +12,868 +2%
JPMorgan Chase & Co
15
JPMorgan Chase & Co
New York
$10.2M 635,471 +222,274 +54%
Charles Schwab
16
Charles Schwab
California
$10.1M 626,721 +32,626 +5%
Northern Trust
17
Northern Trust
Illinois
$8.52M 530,591 +35,943 +7%
Hotchkis & Wiley Capital Management
18
Hotchkis & Wiley Capital Management
California
$7.56M 471,017 -12,400 -3%
Bank of New York Mellon
19
Bank of New York Mellon
New York
$7.18M 447,341 +9,650 +2%
AG
20
Arctis Global
Puerto Rico
$6.63M 412,880 +341,317 +477%
Citadel Advisors
21
Citadel Advisors
Florida
$6.23M 388,216 +253,342 +188%
Assenagon Asset Management
22
Assenagon Asset Management
Luxembourg
$5.92M 368,689 -3,487 -0.9%
Principal Financial Group
23
Principal Financial Group
Iowa
$4.95M 308,552 -6,569 -2%
GCM
24
Gator Capital Management
Florida
$4.43M 276,286 +276,286 New
Public Sector Pension Investment Board (PSP Investments)
25
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$4.2M 261,451 +106,000 +68%