Ambac Financial Group Inc (AMBC) Ownership

6.55 ↓0.39 (-5.62%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

BlackRock Inc is the biggest individual institutional holder of Ambac Financial Group Inc (AMBC), owning a total of 8 million shares. Combined, the top 42 institutional holders of AMBC own 93.63% of the company with a total of 43.5 million shares.

In the latest ownership report on December 31st 2024, the top 42 institutional holders increased their combined ownership of AMBC by 2.3 million shares. 12 institutions bought 3,485,518 total additional shares and increased their ownership by an average of 23.89%. However 5 institutions sold 1,180,750 total shares and decreased their ownership by an average of 8.61%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Ambac Financial Group increased by a net total of 2,304,768 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
BlackRock Inc	17.117%	3.226%	7,960,513	248,771	2024-12-31
Vanguard Group Inc	6.915%	-21.911%	3,216,048	-902,375	2024-12-31
Dimensional Fund Advisors, Inc.	5.819%	-3.503%	2,706,151	-98,249	2024-12-31
Repertoire Partners LP	4.648%	4.743%	2,161,630	97,885	2024-12-31
State Street Corp	3.858%	8.497%	1,794,042	140,498	2024-12-31
FMR Inc	3.473%	-6.764%	1,615,030	-117,156	2024-12-31
Goldman Sachs Group Inc	2.550%	70.975%	1,185,700	492,208	2024-12-31
Bain Capital Credit	2.383%	0.000%	1,108,012	0	2024-12-31
Geode Capital Management, LLC	2.250%	1.706%	1,046,510	17,554	2024-12-31
Wolf Hill Capital Management, LP	2.150%	0.000%	1,000,003	1,000,003	2024-12-31
American Century Companies Inc	1.998%	3.897%	929,345	34,861	2024-12-31
Hotchkis & Wiley Capital Management LLC	1.801%	12.474%	837,650	92,900	2024-12-31
Nuveen Asset Management, LLC	1.773%	65.464%	824,357	326,149	2024-12-31
Susquehanna International Group, LLP	1.623%	102.326%	754,965	381,822	2024-12-31
Deutsche Bank AG	1.452%	-2.131%	675,133	-14,697	2024-12-31
Portolan Capital Management, LLC	1.267%	0.000%	589,437	589,437	2024-12-31
Bracebridge Capital, LLC	1.246%	0.000%	579,234	0	2024-12-31
Northern Trust Corp	1.154%	13.409%	536,486	63,430	2024-12-31
Gendell Jeffrey L	1.134%	0.000%	527,538	0	2024-12-31
Charles Schwab Investment Management Inc	1.086%	-8.723%	505,126	-48,273	2024-12-31

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
BlackRock Inc	17.117%	3.226%	7,960,513	248,771	2024-12-31
Vanguard Group Inc	6.915%	-21.911%	3,216,048	-902,375	2024-12-31
Dimensional Fund Advisors, Inc.	5.819%	-3.503%	2,706,151	-98,249	2024-12-31
Repertoire Partners LP	4.648%	4.743%	2,161,630	97,885	2024-12-31
State Street Corp	3.858%	8.497%	1,794,042	140,498	2024-12-31
State Street Corporation	3.471%	1.274%	1,646,835	20,708	2024-03-31
FMR Inc	3.473%	-6.764%	1,615,030	-117,156	2024-12-31
Goldman Sachs Group Inc	2.550%	70.975%	1,185,700	492,208	2024-12-31
Bain Capital Credit	2.383%	0.000%	1,108,012	0	2024-12-31
Amvescap Plc.	2.303%	5.780%	1,092,507	59,693	2024-03-31
Geode Capital Management, LLC	2.250%	1.706%	1,046,510	17,554	2024-12-31
Wolf Hill Capital Management, LP	2.150%	0.000%	1,000,003	1,000,003	2024-12-31
American Century Companies Inc	1.998%	3.897%	929,345	34,861	2024-12-31
UBS Group AG	1.853%	116.435%	839,268	451,498	2023-03-31
Hotchkis & Wiley Capital Management LLC	1.801%	12.474%	837,650	92,900	2024-12-31
Nuveen Asset Management, LLC	1.773%	65.464%	824,357	326,149	2024-12-31
Susquehanna International Group, LLP	1.623%	102.326%	754,965	381,822	2024-12-31
Morgan Stanley - Brokerage Accounts	1.566%	-33.503%	742,913	-374,303	2024-09-30
Citadel Advisors Llc	1.537%	76.467%	729,231	315,991	2024-09-30
Boussard & Gavaudan Assets	1.510%	-19.978%	683,012	-170,519	2024-03-31
Deutsche Bank AG	1.452%	-2.131%	675,133	-14,697	2024-12-31
Barclays PLC	1.435%	-7.570%	645,193	-52,840	2022-06-30
Arrowstreet Capital Limited Partnership	1.289%	771.177%	611,357	541,181	2024-06-30
Prudential Financial Inc	1.334%	-17.394%	603,120	-127,000	2024-03-31
Portolan Capital Management, LLC	1.267%	0.000%	589,437	589,437	2024-12-31
Bracebridge Capital, LLC	1.246%	0.000%	579,234	0	2024-12-31
Cqs (Us), LLC	1.260%	-59.729%	566,717	-840,528	2022-09-30
Northern Trust Corp	1.154%	13.409%	536,486	63,430	2024-12-31
Gendell Jeffrey L	1.134%	0.000%	527,538	0	2024-12-31
JPMorgan Chase & Co	1.071%	56.862%	508,144	184,200	2024-09-30
Charles Schwab Investment Management Inc	1.086%	-8.723%	505,126	-48,273	2024-12-31
AQR Capital Management LLC	1.109%	-27.307%	501,124	-188,247	2023-09-30
D. E. Shaw & Co LP	1.002%	8.517%	475,461	37,317	2024-09-30
Millennium Management LLC	1.011%	1,802.270%	458,086	434,005	2022-12-31
Jupiter Asset Management Limited	0.943%	4.390%	426,663	17,944	2023-12-31
Bank of New York Mellon Corp	0.890%	0.016%	422,081	67	2024-06-30
Gator Capital Management, LLC	0.837%	11.491%	376,265	38,779	2022-09-30
Bridgeway Capital Management, LLC	0.814%	13.620%	367,822	44,092	2023-06-30
Two Seas Capital LP	0.724%	21.258%	325,526	57,069	2022-09-30
NORGES BANK	0.714%	40.985%	323,400	94,014	2022-12-31
Ameriprise Financial Inc	0.649%	10.669%	291,679	28,120	2022-06-30
Principal Financial Group Inc	0.611%	-0.824%	274,762	-2,284	2022-12-31

Mutual Fund Ownership

iShares Core S&P Small-Cap ETF is the biggest individual fund holder of Ambac Financial Group Inc (AMBC), owning a total of 3 million shares. Combined, the top 41 mutual fund holders of AMBC own 52.94% of the company with a total of 24.4 million shares.

In the latest ownership report on February 28th 2025, the top 41 fund holders increased their combined ownership of AMBC by 59 thousand shares. 3 funds bought 77,666 total additional shares and increased their ownership by an average of 5.39%. However 4 funds sold 18,482 total shares and decreased their ownership by an average of 0.56%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Ambac Financial Group increased by a net total of 59,184 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
iShares Core S&P Small-Cap ETF	6.544%	0.000%	3,043,456	0	2025-02-28
Vanguard Total Stock Mkt Idx Inv	3.052%	2.211%	1,419,284	30,700	2025-02-28
iShares Russell 2000 ETF	2.590%	-1.162%	1,204,568	-14,162	2025-02-28
Avantis US Small Cap Value ETF	1.618%	0.000%	752,663	0	2025-02-28
Vanguard Institutional Extnd Mkt Idx Tr	1.593%	0.169%	740,925	1,253	2025-02-28
iShares S&P Small-Cap 600 Value ETF	1.150%	0.000%	534,657	0	2025-02-28
iShares Russell 2000 Value ETF	0.917%	-0.753%	426,428	-3,234	2025-02-28
SPDR® Portfolio S&P 600™ Sm Cap ETF	0.914%	-0.110%	425,008	-468	2025-02-28
BlackRock Global Equity Mkt Netrl Instl	0.811%	13.800%	376,971	45,713	2025-02-28
Vanguard Tax-Managed Small Cap Adm	0.736%	0.000%	342,041	0	2025-02-28
Dimensional US Targeted Value ETF	0.649%	0.000%	301,991	0	2025-02-28
SPDR® S&P 600 Small Cap Value ETF	0.649%	-0.204%	301,669	-618	2025-02-28
State St Russell Sm/Mid Cp® Indx NL Cl C	0.555%	0.000%	258,253	0	2025-02-28

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
iShares Core S&P Small-Cap ETF	6.544%	0.000%	3,043,456	0	2025-02-28
Fidelity® Value	4.427%	1.497%	2,000,559	29,500	2023-11-30
Fidelity Value	3.212%	0.000%	1,493,659	0	2025-01-31
Vanguard Total Stock Mkt Idx Inv	3.052%	2.211%	1,419,284	30,700	2025-02-28
Vanguard Instl Ttl Stck Mkt Idx Tr	3.068%	2.975%	1,386,506	40,052	2023-03-31
iShares Russell 2000 ETF	2.590%	-1.162%	1,204,568	-14,162	2025-02-28
Avantis US Small Cap Value ETF	1.618%	0.000%	752,663	0	2025-02-28
Vanguard Institutional Extnd Mkt Idx Tr	1.593%	0.169%	740,925	1,253	2025-02-28
Vanguard Extended Market Index Investor	1.454%	1.009%	658,583	6,577	2023-08-31
CREF Stock R1	1.329%	0.000%	618,136	0	2025-01-31
Invesco S&P SmallCap Value with Momt ETF	1.266%	0.000%	572,675	0	2024-05-31
Vanguard Small Cap Index	1.200%	0.583%	569,361	3,300	2024-11-30
DFA US Small Cap Value I	1.200%	7.882%	558,150	40,781	2025-01-31
iShares S&P Small-Cap 600 Value ETF	1.150%	0.000%	534,657	0	2025-02-28
Xtrackers Stoxx Glb Sel Div 100 SwpETF1D	1.131%	0.000%	508,574	508,574	2022-05-31
iShares S&P Small-Cap 600 Growth ETF	0.981%	0.000%	465,353	0	2024-11-30
Fidelity Small Cap Index	0.958%	2.671%	445,723	11,596	2024-12-31
iShares Russell 2000 Value ETF	0.917%	-0.753%	426,428	-3,234	2025-02-28
SPDR® Portfolio S&P 600™ Sm Cap ETF	0.914%	-0.110%	425,008	-468	2025-02-28
Fidelity® Small Cap Index	0.927%	2.174%	418,792	8,912	2023-10-31
DFA US Targeted Value I	0.880%	0.000%	409,184	0	2025-01-31
Strategic Advisers U.S. Total Stock	0.842%	-40.521%	399,298	-272,032	2024-12-31
SPDR® Portfolio S&P 600 Sm Cap ETF	0.881%	-0.144%	398,527	-574	2024-05-30
Vanguard Small Cap Value Index Inv	0.808%	0.493%	383,491	1,881	2024-11-30
BlackRock Global Equity Mkt Netrl Instl	0.811%	13.800%	376,971	45,713	2025-02-28
Vanguard Tax-Managed Small Cap Adm	0.736%	0.000%	342,041	0	2025-02-28
Dimensional US Targeted Value ETF	0.649%	0.000%	301,991	0	2025-02-28
SPDR® S&P 600 Small Cap Value ETF	0.649%	-0.204%	301,669	-618	2025-02-28
Avantis® U.S. Small Cap Value ETF	0.642%	0.000%	290,991	0	2023-07-29
Xtrackers S&P 500 Swap ETF 1C	0.591%	0.000%	267,055	0	2024-02-29
SPDR® S&P 600 Small Cap Growth ETF	0.555%	0.000%	263,387	0	2024-11-30
DFA US Micro Cap I	0.554%	0.000%	262,609	0	2024-07-31
GS Glb Sm Cp CORE Eq Base Inc USD Close	0.545%	340.477%	258,485	199,802	2024-11-30
State St Russell Sm/Mid Cp® Indx NL Cl C	0.555%	0.000%	258,253	0	2025-02-28
Fidelity Extended Market Index	0.551%	-1.496%	256,199	-3,891	2025-01-31
DFA US Small Cap I	0.550%	0.000%	255,707	0	2025-01-31
Bridgeway Omni Small-Cap Value N	0.553%	0.000%	250,000	0	2024-03-31
Bridgeway Omni Small-Cap Value	0.552%	19.048%	250,000	40,000	2023-06-30
Schwab Fundamental US Small Company ETF	0.512%	0.152%	232,009	352	2023-07-29
Fidelity® Extended Market Index	0.510%	1.466%	231,039	3,338	2023-06-30
Principal SmallCap S&P 600 Idx SP	0.481%	1.818%	217,922	3,891	2023-02-28