174 hedge funds and large institutions have $325M invested in Ambac in 2025 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 53 increasing their positions, 59 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

6.83% less ownership

Funds ownership: 87.46%80.63% (-6.8%)

10% less repeat investments, than reductions

Existing positions increased: 53 | Existing positions reduced: 59

38% less capital invested

Capital invested by funds: $522M → $325M (-$197M)

Holders
174
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$84.6M
Puts
$8.99M
Net Calls
Net Calls Change

Top Buyers

1 +$6.33M
2 +$4.57M
3 +$3.72M
4
Jane Street
Jane Street
New York
+$3.57M
5
Morgan Stanley
Morgan Stanley
New York
+$3.15M

Top Sellers

1 -$26.8M
2 -$8.64M
3 -$7.46M
4
State Street
State Street
Massachusetts
-$6.67M
5
Vanguard Group
Vanguard Group
Pennsylvania
-$4.86M
Name Holding Trade Value Shares
Change
Change in
Stake
RTL
151
Red Tortoise LLC
Georgia
$1.57K
DPW
152
DiNuzzo Private Wealth
Pennsylvania
$1.55K
HNB
153
Huntington National Bank
Ohio
$1.38K
AssetMark Inc
154
AssetMark Inc
California
$1.38K
RIL
155
Rothschild Investment LLC
Illinois
$1.29K
Russell Investments Group
156
Russell Investments Group
United Kingdom
$1.11K
SAM
157
Smartleaf Asset Management
Massachusetts
$830
MPWT
158
MassMutual Private Wealth & Trust
Connecticut
$709
Osaic Holdings
159
Osaic Holdings
Arizona
$507
PFBT
160
Parkside Financial Bank & Trust
Missouri
$482
QCG
161
Quadrant Capital Group
Ohio
$403
SC
162
Stephens Consulting
Michigan
$350
FMII
163
Farmers & Merchants Investments Inc
Nebraska
$271
AF
164
Allworth Financial
California
$225
LWMI
165
Legacy Wealth Management (Idaho)
Idaho
$219
PS
166
Principal Securities
Iowa
$202
VCM
167
Versant Capital Management
Arizona
$166
CIAM
168
Caitong International Asset Management
Hong Kong
$114
TWD
169
True Wealth Design
Ohio
$114
IA
170
IFP Advisors
Florida
$105
SS
171
SBI Securities
Japan
$88
PCM
172
Portolan Capital Management
Massachusetts
Norges Bank
173
Norges Bank
Norway
Principal Financial Group
174
Principal Financial Group
Iowa
ETC
175
Exchange Traded Concepts
Oklahoma