Who owns Ambac Finl?
- Ticker: OSG
- CUSIP Number: 023139884
Tip: Access positions for across all investors
Analyze quarterly positions in Ambac Finl with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Ambac Finl stock
Who bought or sold Ambac Finl this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| BlackRock | 3.9M | $18M | -13% | Mar 2026 |
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| Western Standard | 2.2M | $11M | -10% | Mar 2026 |
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| Vanguard Capital Management | 1.9M | $9.0M | 100% | Mar 2026 |
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| Prescott Group Capital Management | 1.6M | $7.4M | 78% | Mar 2026 |
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| Wolf Hill Capital Management | 1.5M | $6.8M | -22% | Mar 2026 |
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| Jeffrey L. Gendell | 1.4M | $6.6M | -10% | Mar 2026 |
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| Third Avenue Management | 1.3M | $6.2M | 71% | Mar 2026 |
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| Dimensional Fund Advisors | 1.3M | $6.1M | -22% | Mar 2026 |
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| Sankaty Advisors | 1.1M | $5.2M | 0% | Mar 2026 |
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| Marshall Wace | 1.1M | $5.0M | 42% | Mar 2026 |
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| Caption Management | 1.0M | $4.8M | -57% | Mar 2026 |
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| Geode Capital Management | 1.0M | $4.8M | 0% | Mar 2026 |
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| State Street Corporation | 941k | $4.4M | 0% | Mar 2026 |
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| Jacobs Levy Equity Management | 884k | $4.1M | 273% | Mar 2026 |
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| Nuveen | 800k | $3.7M | -1% | Mar 2026 |
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| Susquehanna International | 793k | $3.7M | 11% | Mar 2026 |
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| Jane Street | 781k | $3.6M | -68% | Mar 2026 |
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| Bracebridge Capital | 579k | $2.7M | 0% | Mar 2026 |
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| RIHO Partners | 547k | $2.5M | 100% | Mar 2026 |
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| Citadel Advisors | 541k | $2.5M | -68% | Mar 2026 |
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| Essex Investment Management | 418k | $1.9M | 2% | Mar 2026 |
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| Goldman Sachs Group | 346k | $1.6M | -56% | Mar 2026 |
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| IPG Investment Advisors | 326k | $1.5M | 100% | Mar 2026 |
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| Skopos Labs | 325k | $1.5M | 100% | Mar 2026 |
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| Northern Trust | 322k | $1.5M | 0% | Mar 2026 |
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| Vanguard Portfolio Management | 296k | $1.4M | 100% | Mar 2026 |
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| Charles Schwab Investment Management | 295k | $1.4M | -18% | Mar 2026 |
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| Vanguard Fiduciary Trust | 275k | $1.3M | 100% | Mar 2026 |
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| UBS Group | 264k | $1.2M | 72% | Mar 2026 |
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| Bank of America Corporation | 256k | $1.2M | 100% | Mar 2026 |
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| Morgan Stanley | 235k | $1.1M | -75% | Mar 2026 |
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| Renaissance Technologies | 228k | $1.1M | 805% | Mar 2026 |
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| Harbor Advisors | 196k | $913k | 0% | Mar 2026 |
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| Bridgeway Capital Management | 183k | $849k | -26% | Mar 2026 |
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| Russell Investments | 181k | $843k | -48% | Mar 2026 |
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| Tudor Investment Corporation | 160k | $744k | 70% | Mar 2026 |
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| Sei Investments | 156k | $728k | 134% | Mar 2026 |
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| Invesco | 151k | $702k | -3% | Mar 2026 |
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| Connor, Clark & Lunn Investment Management | 144k | $671k | 110% | Mar 2026 |
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| Arrowpoint Investment Partners | 139k | $647k | -31% | Mar 2026 |
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| Millennium Management | 135k | $628k | -55% | Mar 2026 |
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| Legato Capital Management | 131k | $608k | -1% | Mar 2026 |
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| Bank of New York Mellon | 131k | $607k | -6% | Mar 2026 |
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| American Century Companies | 121k | $561k | -2% | Mar 2026 |
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| XTX Topco | 117k | $544k | 276% | Mar 2026 |
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| Ameriprise Financial | 115k | $535k | 100% | Mar 2026 |
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| Empowered Funds | 114k | $530k | 100% | Mar 2026 |
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| Point72 Asset Management | 114k | $529k | 10% | Mar 2026 |
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| Cruiser Capital Advisors | 109k | $506k | 2% | Mar 2026 |
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| Hsbc Holdings | 102k | $476k | 11% | Mar 2026 |
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| Engineers Gate Manager | 100k | $467k | 23% | Mar 2026 |
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| Squarepoint Ops | 77k | $358k | 100% | Mar 2026 |
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| Jump Financial | 71k | $328k | -17% | Mar 2026 |
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| Prudential Financial | 70k | $326k | 29% | Mar 2026 |
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| Ohio Pers | 69k | $320k | 100% | Mar 2026 |
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| Walleye Trading Advisors | 67k | $312k | -52% | Mar 2026 |
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| Barclays | 57k | $265k | -92% | Mar 2026 |
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| Wells Fargo & Company | 55k | $257k | -35% | Mar 2026 |
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| Rhumbline Advisers | 54k | $249k | -7% | Mar 2026 |
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| Hrt Financial | 51k | $237k | -54% | Mar 2026 |
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| AQR Capital Management | 50k | $232k | -29% | Mar 2026 |
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| Quantinno Capital Management | 49k | $227k | -38% | Mar 2026 |
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| Acadian Asset Management | 43k | $199k | 86% | Mar 2026 |
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| Quantbot Technologies | 39k | $180k | 101% | Mar 2026 |
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| Alliancebernstein | 38k | $292k | 0% | Mar 2026 |
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| Gwn Securities | 36k | $169k | 100% | Mar 2026 |
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| Deutsche Bank Aktiengesellschaft | 31k | $142k | 19% | Mar 2026 |
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| Lazard Asset Management | 29k | $136k | 100% | Mar 2026 |
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| Commonwealth Financial Services | 29k | $135k | 100% | Mar 2026 |
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| State of Wyoming | 29k | $134k | 50% | Mar 2026 |
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| Raymond James Financial | 26k | $119k | 100% | Mar 2026 |
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| Kitzinger Lautmann Capital Management | 24k | $111k | 0% | Mar 2026 |
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| CIBC Global Asset Management | 24k | $111k | 0% | Mar 2026 |
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| Empirical Asset Management | 23k | $109k | 100% | Mar 2026 |
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| State of Wisconsin Investment Board | 23k | $108k | 100% | Mar 2026 |
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| Mraz, Amerine & Associates | 22k | $134k | 0% | Jun 2026 |
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| Gator Capital Management | 21k | $100k | 100% | Mar 2026 |
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| SG Americas Securities | 19k | $87k | -95% | Mar 2026 |
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| Vanguard Global Advisers | 19k | $87k | 100% | Mar 2026 |
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| Mirae Asset Global Etfs Holdings | 18k | $85k | -5% | Mar 2026 |
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| Brevan Howard Capital Management | 18k | $85k | -13% | Mar 2026 |
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| Quotient Wealth Partners | 17k | $79k | 100% | Mar 2026 |
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| Anchyra Partners | 16k | $76k | 100% | Mar 2026 |
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| Centiva Capital | 16k | $75k | 100% | Mar 2026 |
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| Axq Capital | 15k | $72k | -62% | Mar 2026 |
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| Able Wealth Management | 15k | $71k | 100% | Mar 2026 |
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| Daymark Wealth Partners | 15k | $68k | 100% | Mar 2026 |
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| Metis Global Partners | 14k | $67k | -43% | Mar 2026 |
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| Mercer Global Advisors | 14k | $63k | 100% | Mar 2026 |
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| Verition Fund Management | 14k | $63k | -23% | Mar 2026 |
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| Aire Advisors | 13k | $63k | 100% | Mar 2026 |
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| Graham Capital Management | 13k | $61k | 100% | Mar 2026 |
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| D. E. Shaw & Co | 13k | $60k | -71% | Mar 2026 |
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| Florida State Board of Administration | 13k | $59k | 0% | Mar 2026 |
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| Citigroup | 12k | $57k | 100% | Mar 2026 |
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| Group One Trading | 12k | $56k | 100% | Mar 2026 |
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| Police & Firemen's Retirement System of New Jersey | 12k | $55k | 0% | Mar 2026 |
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| Crown Wealth Group | 11k | $52k | 0% | Mar 2026 |
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| Symmetry Partner | 11k | $51k | 100% | Mar 2026 |
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| IMC-Chicago | 11k | $51k | -59% | Mar 2026 |
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| Manufacturers Life Insurance Company | 11k | $50k | -14% | Mar 2026 |
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| Franklin Resources | 11k | $49k | -11% | Mar 2026 |
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| United Capital Financial Advisers | 10k | $48k | 100% | Mar 2026 |
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| New York State Common Retirement Fund | 10k | $47k | 0% | Mar 2026 |
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| Simplex Trading | 9.5k | $44k | -11% | Mar 2026 |
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| Versant Capital Management | 8.4k | $52k | 100% | Jun 2026 |
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| Bnp Paribas Arbitrage, Snc | 8.3k | $39k | -90% | Mar 2026 |
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| MetLife Investment Advisors | 7.4k | $35k | -63% | Mar 2026 |
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| Parallel Advisors | 6.5k | $30k | 4187% | Mar 2026 |
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| Federated Investors | 4.4k | $21k | 0% | Mar 2026 |
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| Tower Research Capital | 4.1k | $19k | 225% | Mar 2026 |
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| Legal & General Group | 3.8k | $18k | 0% | Mar 2026 |
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| Summit Investment Advisors | 3.6k | $17k | 0% | Mar 2026 |
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| CWM | 3.2k | $15k | -43% | Mar 2026 |
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| California State Teachers Retirement System | 2.2k | $10k | -12% | Mar 2026 |
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| Advisor Group Holdings | 1.9k | $9.0k | 7377% | Mar 2026 |
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| Quadrant Capital | 1.6k | $7.3k | -16% | Mar 2026 |
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| Sterling Capital Management | 1.3k | $6.0k | -46% | Mar 2026 |
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| Harbor Capital Advisors | 1.2k | $6.0k | 8% | Mar 2026 |
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| MAI Wealth Advisors | 1.1k | $4.9k | 0% | Mar 2026 |
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| FMR | 994.00 | $4.6k | -61% | Mar 2026 |
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| NISA Investment Advisors | 970.00 | $4.5k | 0% | Mar 2026 |
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| Farther Finance Advisors | 752.00 | $4.7k | -80% | Jun 2026 |
|
| Wiser Advisor Group | 500.00 | $2.3k | 0% | Mar 2026 |
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| Pnc Financial Services | 352.00 | $1.6k | 212% | Mar 2026 |
|
| Optiver Holding B.V. | 332.00 | $1.5k | -10% | Mar 2026 |
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| Capital Analysts | 325.00 | $2.0k | 0% | Mar 2026 |
|
| Bell Investment Advisors | 293.00 | $1.4k | 100% | Mar 2026 |
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| EverSource Wealth Advisors | 237.00 | $1.1k | 309% | Mar 2026 |
|
| DiNuzzo Private Wealth | 177.00 | $1.1k | 0% | Jun 2026 |
|
| Thomas Stevens, CFA" | 148.00 | $687.992800 | 0% | Mar 2026 |
|
| Essential Partners | 110.00 | $511.995000 | 100% | Mar 2026 |
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| True Wealth Design | 108.00 | $673.995600 | 100% | Jun 2026 |
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| Advisors Asset Management | 98.00 | $456.003800 | 0% | Mar 2026 |
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| Bare Financial Services | 87.00 | $405.002400 | 100% | Mar 2026 |
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| Basecamp Wealth Advisors | 82.00 | $380.996600 | 100% | Mar 2026 |
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| Fifth Third Bancorp | 39.00 | $180.999000 | 100% | Mar 2026 |
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| IFP Advisors | 34.00 | $158.001400 | 10% | Mar 2026 |
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| Hanson McClain Advisors | 34.00 | $159.001000 | -88% | Mar 2026 |
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| Rothschild Investment | 32.00 | $148.998400 | 0% | Mar 2026 |
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| Legacy Wealth Managment | 25.00 | $117.000000 | 0% | Mar 2026 |
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| Root Financial Partners | 22.00 | $102.000800 | 100% | Mar 2026 |
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| Advisory Services Network | 20.00 | $93.000000 | 100% | Mar 2026 |
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| Royal Bank of Canada | 17.00 | $0 | 100% | Mar 2026 |
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| Transamerica Financial Advisors | 11.00 | $51.000400 | 100% | Mar 2026 |
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| SBI Securities | 10.00 | $47.000000 | 0% | Mar 2026 |
|
| Allied Private Wealth | 8.00 | $48.000000 | 100% | Jun 2026 |
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Who sold out of Ambac Finl?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Walleye Trading | Dec 2025 | 354k | $2.8M |
| VELA Investment Management | Dec 2025 | 179k | $1.4M |
| Schonfeld Strategic Advisors | Dec 2025 | 170k | $1.3M |
| ExodusPoint Capital Management | Dec 2025 | 110k | $854k |
| Norges Bank Investment Management | Dec 2025 | 75k | $584k |
| Creative Planning | Dec 2025 | 69k | $533k |
| Diametric Capital | Dec 2025 | 67k | $517k |
| Caxton Associates | Dec 2025 | 66k | $511k |
| DLD Asset Management | Dec 2025 | 60k | $470k |
| Calamos Advisors | Dec 2025 | 49k | $382k |
| Two Sigma Investments | Dec 2025 | 45k | $350k |
| Y-Intercept | Dec 2025 | 44k | $341k |
| Balyasny Asset Management | Dec 2025 | 43k | $334k |
| Fox Run Management | Dec 2025 | 42k | $330k |
| Peak6 | Dec 2025 | 31k | $237k |
| Oxford Asset Management | Dec 2025 | 25k | $198k |
| Aquatic Capital Management | Dec 2025 | 23k | $180k |
| Park Capital Management, LLC / WI | Mar 2026 | 21k | $99k |
| Quadrature Capital | Dec 2025 | 21k | $165k |
| Intech Investment Management | Dec 2025 | 21k | $164k |
| Virtu Financial | Dec 2025 | 19k | $150k |
| Quarry | Dec 2025 | 15k | $118k |
| nVerses Capital | Dec 2025 | 12k | $95k |
| HPM Partners | Dec 2025 | 11k | $88k |
| Voleon Capital Management | Dec 2025 | 11k | $87k |
| Inscription Capital | Dec 2025 | 11k | $84k |
| Springbok Capital Management | Dec 2025 | 11k | $83k |
| Quest Partners | Dec 2025 | 10k | $79k |
| Kemnay Advisory Services | Dec 2025 | 8.1k | $63k |
| Amalgamated Bank | Dec 2025 | 1.3k | $10k |
| SRS Capital Advisors | Dec 2025 | 257.00 | $2.0k |
| Signature | Dec 2025 | 180.00 | $1.4k |
| GAMMA Investing | Mar 2026 | 72.00 | $335.001600 |