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 ($357.2k this quarter). Holder counts are more reliable. Shares outstanding: 50.5m as of 2025-07-31, 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 ≈ $4.34. Options: 4 managers hold calls ($387.3k notional), 4 hold puts ($249.6k).
Trends to Q2 2025
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 |
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 2023 | 56 | 61 |
| Q4 2023 | 69 | 65 |
| Q1 2024 | 63 | 64 |
| Q2 2024 | 53 | 72 |
| Q3 2024 | 58 | 56 |
| Q4 2024 | 52 | 49 |
| Q1 2025 | 44 | 59 |
| Q2 2025 | 52 | 51 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $1.6m | $2.7m | 1.67 |
| Q4 2024 | $3.5m | $6.1m | 1.71 |
| Q1 2025 | $1.5m | $669.1k | 0.45 |
| Q2 2025 | $387.3k | $249.6k | 0.64 |
Biggest buyers
| MARSHALL WACE, LLP | Added | +270.2k |
| TCW GROUP INC | Added | +231.4k |
| CITADEL ADVISORS LLC | Added | +138.1k |
| GSA CAPITAL PARTNERS LLP | Added | +121.2k |
| VANGUARD GROUP INC | Added | +109.9k |
| ROYAL BANK OF CANADA | Added | +107.8k |
| Freestone Capital Holdings, LLC | Added | +99.4k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +54.5k |
| FineMark National Bank & Trust | New | +50.0k |
| JANE STREET GROUP, LLC | Added | +42.7k |
Biggest sellers
| Wolf Hill Capital Management, LP | Reduced | -854.5k |
| UBS Group AG | Reduced | -330.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -152.1k |
| BlackRock, Inc. | Reduced | -122.4k |
| JTC Employer Solutions Trustee Ltd | Reduced | -100.0k |
| Trexquant Investment LP | Reduced | -90.4k |
| BANK OF AMERICA CORP /DE/ | Reduced | -87.3k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | Reduced | -57.7k |
| MORGAN STANLEY | Reduced | -57.4k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -55.2k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $337.7k77.8k shares |
| Walleye Capital LLC | New | $31.7k7.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $18.0k4.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $178.4k41.1k shares |
| CITADEL ADVISORS LLC | Reduced | $70.7k16.3k shares |
| GROUP ONE TRADING LLC | Unchanged | $434100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 in Q2 2025
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 |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 1 | $94.0k | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $118.2k | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 2 | $153.0k | — |
| Q1 2025 | 0 | — | 1 | $64.5k | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 3.3m $14.5m | Reduced -122.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 2.5m $11.0m | Added +109.9k |
| Wolf Hill Capital Management, LP 0.89% of their portfolio | 2.5m $10.7m | Reduced -854.5k |
| VALUEWORKS LLC 3.18% of their portfolio | 2.2m $9.7m | Added +21.4k |
| Hosking Partners LLP 0.27% of their portfolio | 1.6m $6.8m | Reduced -19.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.0m $4.5m | Added +14.3k |
| TCW GROUP INC 0.03% of their portfolio | 1.0m $4.5m | Added +231.4k |
| STATE STREET CORP 0.00% of their portfolio | 1.0m $4.4m | Reduced -27.1k |
| UBS Group AG 0.00% of their portfolio | 593.5k $2.6m | Reduced -330.9k |
| MORGAN STANLEY 0.00% of their portfolio | 459.7k $2.0m | Reduced -57.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 417.1k $1.8m | Reduced -8.2k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 417.0k $1.8m | Added +270.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 401.2k $1.7m | Added +138.1k |
| Freestone Capital Holdings, LLC 0.06% of their portfolio | 387.5k $1.7m | Added +99.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 367.7k $1.6m | Added +8.5k |
| Chou Associates Management Inc. 0.76% of their portfolio | 321.0k $1.4m | Unchanged |
| WHITEBOX ADVISORS LLC 0.04% of their portfolio | 317.1k $1.4m | Added +22.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 280.1k $1.2m | Reduced -87.3k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 266.0k $1.2m | Reduced -152.1k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 223.7k $971.0k | Reduced -55.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 205.0k $889.9k | Reduced -47.7k |
| JTC Employer Solutions Trustee Ltd 0.07% of their portfolio | 180.0k $782.0k | Reduced -100.0k |
| GROUP ONE TRADING LLC 0.02% of their portfolio | 160.8k $697.9k | Reduced -11.4k |
| GSA CAPITAL PARTNERS LLP 0.05% of their portfolio | 154.1k $669.0k | Added +121.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 144.1k $625.2k | Added +5.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 134.1k $581.9k | Added +1.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 133.6k $579.8k | Added +54.5k |
| Nuveen, LLC 0.00% of their portfolio | 120.6k $523.6k | Reduced -26.2k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 119.1k $516.9k | Added +23.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 117.1k $508.0k | Added +107.8k |
| BLUEFIN CAPITAL MANAGEMENT, LLC 0.38% of their portfolio | 113.5k $492.6k | Added +11.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 108.6k $471.4k | Reduced -54.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 101.4k $441.0k | Added +1.3k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 99.0k $429.9k | Reduced -13.0k |
| LANARK FINANCIAL, INC. 0.03% of their portfolio | 98.2k $426.0k | Added +15.3k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 96.8k $419.9k | Added +42.7k |
| Caption Management, LLC 0.04% of their portfolio | 94.6k $410.6k | Reduced -4.5k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 80.0k $347.2k | Unchanged |
| Militia Capital Partners, LP 0.08% of their portfolio | 79.6k $345.5k | Added +12.6k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 78.1k $339.0k | Added +654 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 76.6k $332.6k | Added +5.7k |
| BARCLAYS PLC 0.00% of their portfolio | 76.5k $332.1k | Added +31.7k |
| TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio | 73.2k $317.9k | Reduced -9.2k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio | 70.8k $307.2k | Reduced -57.7k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 69.8k $302.9k | Added +3.6k |
| PEAK6 LLC 0.00% of their portfolio | 63.4k $275.1k | Added +13.4k |
| Trexquant Investment LP 0.00% of their portfolio | 63.1k $273.7k | Reduced -90.4k |
| Squarepoint Ops LLC 0.00% of their portfolio | 59.6k $258.7k | Added +34.8k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 58.5k $254.1k | Reduced -27.6k |
| FineMark National Bank & Trust 0.01% of their portfolio | 50.0k $217.0k | New |
| SIMPLEX TRADING, LLC 0.01% of their portfolio | 48.2k $209.0k | Reduced -26.3k |
| XTX Topco Ltd 0.01% of their portfolio | 47.8k $207.6k | Added +18.3k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 46.9k $203.3k | Added +24.1k |
| HighTower Advisors, LLC 0.00% of their portfolio | 46.3k $201.0k | Added +16.5k |
| Invesco Ltd. 0.00% of their portfolio | 41.4k $179.9k | Added +11.0k |
| FAIRVIEW CAPITAL INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 40.8k $177.1k | Reduced -36.2k |
| Shay Capital LLC 0.04% of their portfolio | 38.8k $168.3k | Reduced -47.2k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 37.0k $160.8k | Reduced -7.8k |
| Quantinno Capital Management LP 0.00% of their portfolio | 29.7k $128.7k | Added +2.9k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 29.3k $127.3k | Added +318 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 28.1k $122.0k | Added +13.4k |
| Walleye Capital LLC 0.00% of their portfolio | 26.1k $113.4k | Reduced -2.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 25.8k $112.1k | Reduced -488 |
| State of Wyoming 0.01% of their portfolio | 23.3k $101.3k | New |
| SG Americas Securities, LLC 0.00% of their portfolio | 22.1k $96.0k | Reduced -13.9k |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 21.8k $94.5k | Reduced -6.2k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 17.9k $77.7k | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 17.9k $77.6k | Added +1.1k |
| WOLVERINE TRADING, LLC 0.00% of their portfolio | 17.8k $77.0k | New |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 17.5k $76.0k | Unchanged |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.00% of their portfolio | 16.1k $70.0k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 15.3k $66.6k | Reduced -15.6k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 13.8k $59.9k | Reduced -13.3k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 13.4k $58.3k | Reduced -60 |
| Seelaus Asset Management LLC 0.05% of their portfolio | 12.5k $54.2k | Unchanged |
| Mariner, LLC 0.00% of their portfolio | 12.5k $54.1k | Added +110 |
| Choate Investment Advisors 0.00% of their portfolio | 11.4k $49.5k | Unchanged |
| FMR LLC 0.00% of their portfolio | 10.1k $44.0k | Added +4.9k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 10.1k $44.0k | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 9.5k $41.2k | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 5.4k $23.6k | Reduced -17.0k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 5.3k $23.1k | Added +1.9k |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 4.8k $21.0k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 4.7k $20.5k | Added +1.8k |
| Legal & General Group Plc 0.00% of their portfolio | 4.3k $18.8k | Added +458 |
| NewEdge Advisors, LLC 0.00% of their portfolio | 3.6k $15.6k | Unchanged |
| BESSEMER GROUP INC 0.00% of their portfolio | 2.9k $12.0k | Unchanged |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 2.0k $8.7k | Unchanged |
| Brooklyn Investment Group 0.00% of their portfolio | 1.8k $7.6k | New |
| AMALGAMATED BANK 0.00% of their portfolio | 1.7k $7.0k | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 1.4k $5.9k | Added +754 |
| Sterling Capital Management LLC 0.00% of their portfolio | 1.3k $5.5k | Added +491 |
| Headlands Technologies LLC 0.00% of their portfolio | 908 $3.9k | Added +863 |
| Versant Capital Management, Inc 0.00% of their portfolio | 836 $3.6k | New |
| WealthCollab, LLC 0.00% of their portfolio | 305 $1.3k | Unchanged |
| EASTERN BANK 0.00% of their portfolio | 300 $1.3k | Unchanged |
| MAI Capital Management 0.00% of their portfolio | 250 $1.1k | Unchanged |
| Fortitude Family Office, LLC 0.00% of their portfolio | 221 $959 | New |
| FNY Investment Advisers, LLC 0.00% of their portfolio | 180 $0 | Added +10 |
| US BANCORP \DE\ 0.00% of their portfolio | 138 $599 | Unchanged |