MBIA INC MBI
COM · Common Stock · CUSIP 55262C100
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($511.5k this quarter). Holder counts are more reliable. Shares outstanding: 51.0m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $6.52. Options: 7 managers hold calls ($4.9m notional), 7 hold puts ($5.0m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 135 |
| Q4 2022 | 140 |
| Q1 2023 | 136 |
| Q2 2023 | 121 |
| Q3 2023 | 130 |
| Q4 2023 | 123 |
| Q1 2024 | 132 |
| Q2 2024 | 116 |
| Q3 2024 | 108 |
| Q4 2024 | 116 |
| Q1 2025 | 121 |
| Q2 2025 | 112 |
| Q3 2025 | 121 |
| Q4 2025 | 120 |
| Q1 2026 | 134 |
| Q2 2026 | 130 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 58 | 56 |
| Q4 2024 | 52 | 49 |
| Q1 2025 | 44 | 59 |
| Q2 2025 | 52 | 51 |
| Q3 2025 | 55 | 52 |
| Q4 2025 | 56 | 52 |
| Q1 2026 | 67 | 55 |
| Q2 2026 | 68 | 53 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $15.1m | $2.7m | 0.18 |
| Q4 2025 | $9.4m | $580.0k | 0.06 |
| Q1 2026 | $2.5m | $4.7m | 1.88 |
| Q2 2026 | $4.9m | $5.0m | 1.03 |
Biggest buyers
| KAHN BROTHERS GROUP INC | Added | +2.2m |
| Cerity Partners LLC | Added | +655.2k |
| BlackRock, Inc. | Added | +280.2k |
| AQR CAPITAL MANAGEMENT LLC | Added | +115.3k |
| GROUP ONE TRADING LLC | Added | +56.9k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +55.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +47.1k |
| Empirical Asset Management, LLC | New | +42.3k |
| Trexquant Investment LP | Added | +41.4k |
| NORTHERN TRUST CORP | Added | +39.7k |
Biggest sellers
| Wolf Hill Capital Management, LP | Reduced | -427.5k |
| UBS Group AG | Reduced | -266.3k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold out | -224.5k |
| JANE STREET GROUP, LLC | Reduced | -212.8k |
| CITADEL ADVISORS LLC | Reduced | -135.0k |
| XTX Topco Ltd | Sold out | -119.8k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -99.0k |
| BANK OF AMERICA CORP /DE/ | Reduced | -93.7k |
| Walleye Capital LLC | Sold out | -91.8k |
| Squarepoint Ops LLC | Reduced | -75.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.9m298.5k shares |
| Walleye Trading LLC | New | $1.1m163.9k shares |
| GROUP ONE TRADING LLC | Reduced | $818.9k125.6k shares |
| SIMPLEX TRADING, LLC | Added | $355.3k54.5k shares |
| CITADEL ADVISORS LLC | Added | $314.9k48.3k shares |
| JANE STREET GROUP, LLC | Reduced | $204.1k31.3k shares |
| IMC-Chicago, LLC | Reduced | $163.7k25.1k shares |
Biggest puts
| TORONTO DOMINION BANK | Unchanged | $1.6m250.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.3m204.8k shares |
| IMC-Chicago, LLC | Reduced | $582.9k89.4k shares |
| GROUP ONE TRADING LLC | Reduced | $476.6k73.1k shares |
| JANE STREET GROUP, LLC | Added | $461.0k70.7k shares |
| CITADEL ADVISORS LLC | Added | $336.4k51.6k shares |
| SIMPLEX TRADING, LLC | Added | $216.5k33.2k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| KAHN BROTHERS GROUP INC 13G · institution new · filed 2026-08-14 | 8.3% |
| LOWIN LEEAM 13G · exempt (held before listing) new · filed 2026-07-23 | 6.5% |
Fell to 5% or below in the last year: Wolf Hill Capital Management, LP (4.2%, 2026-08-13), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $153.0k | — |
| Q1 2025 | 0 | — | 1 | $64.5k | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 3 | $417.4k | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| KAHN BROTHERS GROUP INC 4.34% of their portfolio | 4.2m $27.5m | Added +2.2m |
| BlackRock, Inc. 0.00% of their portfolio | 3.7m $23.9m | Added +280.2k |
| Wolf Hill Capital Management, LP 1.34% of their portfolio | 2.1m $13.8m | Reduced -427.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.0m $13.0m | Added +16.0k |
| VALUEWORKS LLC 2.68% of their portfolio | 2.0m $12.8m | Added +35.3k |
| Hosking Partners LLP 0.34% of their portfolio | 1.5m $10.1m | Reduced -35.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.1m $7.4m | Added +55.7k |
| STATE STREET CORP 0.00% of their portfolio | 1.1m $7.1m | Added +24.2k |
| Cerity Partners LLC 0.01% of their portfolio | 1.1m $7.1m | Added +655.2k |
| TCW GROUP INC 0.05% of their portfolio | 1.1m $6.9m | Added +26.8k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 459.1k $3.0m | Added +29.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 444.1k $2.9m | Added +39.7k |
| UBS Group AG 0.00% of their portfolio | 400.2k $2.6m | Reduced -266.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 376.1k $2.5m | Added +9.4k |
| Chou Associates Management Inc. 0.97% of their portfolio | 321.0k $2.1m | Unchanged |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 311.2k $2.0m | Added +47.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 310.9k $2.0m | Reduced -99.0k |
| WHITEBOX ADVISORS LLC 0.03% of their portfolio | 304.5k $2.0m | Unchanged |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 302.7k $2.0m | Reduced -7.9k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 298.4k $1.9m | Reduced -50.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 289.0k $1.9m | Reduced -34.7k |
| MORGAN STANLEY 0.00% of their portfolio | 249.1k $1.6m | Reduced -4.8k |
| TORONTO DOMINION BANK 0.00% of their portfolio | 227.9k $1.5m | Reduced -4.2k |
| JTC Employer Solutions Trustee Ltd 0.09% of their portfolio | 180.0k $1.2m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 157.4k $1.0m | Added +21.5k |
| Alta Fundamental Advisers LLC 0.35% of their portfolio | 148.7k $969.3k | Unchanged |
| Bank of New York Mellon Corp 0.00% of their portfolio | 148.4k $967.7k | Added +5.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 146.6k $956.0k | Added +27.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 141.0k $919.2k | Added +115.3k |
| Nuveen, LLC 0.00% of their portfolio | 134.4k $876.5k | Added +21.0k |
| GROUP ONE TRADING LLC 0.02% of their portfolio | 129.0k $841.4k | Added +56.9k |
| Quantinno Capital Management LP 0.00% of their portfolio | 127.8k $833.5k | Added +33.1k |
| BLUEFIN CAPITAL MANAGEMENT, LLC 0.22% of their portfolio | 115.0k $749.8k | Added +18.0k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 113.0k $736.8k | Added +22.3k |
| Squarepoint Ops LLC 0.00% of their portfolio | 101.9k $664.1k | Reduced -75.8k |
| Freestone Capital Holdings, LLC 0.02% of their portfolio | 99.8k $650.5k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 96.9k $632.0k | Reduced -212.8k |
| IMC-Chicago, LLC 0.01% of their portfolio | 88.5k $577.1k | Added +1.5k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 81.7k $532.7k | Added +7.2k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 77.4k $457.7k | Added +3.2k |
| LANARK FINANCIAL, INC. 0.03% of their portfolio | 77.2k $503.3k | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 76.7k $500.0k | Reduced -93.7k |
| HighTower Advisors, LLC 0.00% of their portfolio | 69.4k $452.5k | Added +23.1k |
| Invesco Ltd. 0.00% of their portfolio | 67.5k $440.3k | Added +5.6k |
| Trexquant Investment LP 0.00% of their portfolio | 66.5k $433.3k | Added +41.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 58.8k $383.5k | Added +2.3k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 51.5k $335.7k | Reduced -13.1k |
| ExodusPoint Capital Management, LP 0.00% of their portfolio | 46.0k $300.0k | Added +12.6k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 43.6k $284.6k | Added +3.2k |
| Empirical Asset Management, LLC 0.06% of their portfolio | 42.3k $275.8k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 41.0k $267.0k | Reduced -135.0k |
| Unifi Asset Management LP 0.17% of their portfolio | 37.8k $246.3k | Unchanged |
| Creative Planning 0.00% of their portfolio | 37.8k $246.2k | Added +17.4k |
| BARCLAYS PLC 0.00% of their portfolio | 37.0k $241.3k | Added +16.6k |
| Empowered Funds, LLC 0.00% of their portfolio | 32.2k $210.2k | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 31.7k $206.5k | Added +14.8k |
| CITIZENS FINANCIAL GROUP INC/RI 0.00% of their portfolio | 31.6k $206.0k | Reduced -84 |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 29.8k $194.3k | Reduced -6.3k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 26.2k $171.1k | Reduced -2.3k |
| Engineers Gate Manager LP 0.00% of their portfolio | 24.9k $162.1k | Reduced -18.0k |
| Seelaus Asset Management LLC 0.11% of their portfolio | 24.5k $159.7k | Unchanged |
| MetLife Investment Management, LLC 0.00% of their portfolio | 24.5k $159.5k | Reduced -773 |
| Cresset Asset Management, LLC 0.00% of their portfolio | 24.3k $158.3k | Unchanged |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 24.2k $157.5k | Added +5.1k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 24.1k $157.1k | New |
| CITIGROUP INC 0.00% of their portfolio | 21.6k $140.9k | Added +19.3k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 21.4k $139.4k | Reduced -379 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 20.3k $134.4k | Added +258 |
| 46 Peaks LLC 0.08% of their portfolio | 19.4k $126.5k | New |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 18.2k $118.5k | Unchanged |
| STEINBERGANNA WEALTH MANAGEMENT 0.05% of their portfolio | 18.0k $117.4k | Added +1.9k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 17.9k $116.7k | Unchanged |
| Sequoia Financial Advisors, LLC 0.00% of their portfolio | 14.1k $92.2k | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 13.7k $89.5k | Added +980 |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 12.9k $84.4k | Unchanged |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.00% of their portfolio | 12.7k $83.0k | Unchanged |
| Brevan Howard Capital Management LP 0.00% of their portfolio | 12.6k $81.9k | Reduced -2.9k |
| Focus Partners Wealth 0.00% of their portfolio | 12.5k $81.6k | Added +387 |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 11.4k $74.4k | New |
| Choate Investment Advisors 0.00% of their portfolio | 11.4k $74.3k | Unchanged |
| FMR LLC 0.00% of their portfolio | 11.3k $74.0k | Added +762 |
| Savant Capital, LLC 0.00% of their portfolio | 11.3k $70.0k | New |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 11.2k $72.8k | Reduced -31.5k |
| Dynamic Technology Lab Private Ltd 0.02% of their portfolio | 11.0k $72.0k | New |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 10.5k $68.3k | Reduced -1.2k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 10.0k $65.0k | Added +4.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 9.5k $61.9k | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 9.1k $59.2k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 6.7k $43.9k | Reduced -19.3k |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 4.8k $31.6k | Unchanged |
| HARBOR INVESTMENT ADVISORY, LLC 0.00% of their portfolio | 4.5k $29.3k | Added +1.0k |
| Legal & General Group Plc 0.00% of their portfolio | 4.2k $27.5k | Unchanged |
| NewEdge Advisors, LLC 0.00% of their portfolio | 3.6k $23.5k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.0k $19.5k | Reduced -4.9k |
| Walleye Trading LLC 0.00% of their portfolio | 2.5k $16.2k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 2.2k $14.0k | Added +1.8k |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 1.4k $9.2k | Reduced -500 |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 990 $6.5k | Reduced -1.2k |
| Sterling Capital Management LLC 0.00% of their portfolio | 936 $6.1k | Reduced -577 |
| Versant Capital Management, Inc 0.00% of their portfolio | 836 $5.5k | Unchanged |