MBIA INC (MBI) Institutional Shareholders
MBIA INC (MBI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $170.33M in MBI holdings during the latest filing period.
Kahn Brothers Group is currently the largest disclosed institutional shareholder of MBI tracked by InsiderSet, reporting ownership valued at approximately $27.47M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $18.50M, representing an estimated loss of -32.67% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 74% of the total disclosed MBI value among the investors covered in this analysis. Major shareholders include Kahn Brothers Group, Blackrock, Inc., Wolf Hill Capital Management, Lp, and several other long-term asset managers with concentrated positions in MBIA INC (MBI).
This page ranks the largest institutional MBI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
121
Total Reported Value
$170.33M
Largest Holder
Kahn Brothers Group
Largest Position
$27.47M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
138
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 4.34% | 4,213,920 | $27,474,758 | $18,499,109 | -$8,975,649 | -32.67% |
| Blackrock, Inc. | 0.00% | 3,673,151 | $23,948,944 | $16,125,133 | -$7,823,811 | -32.67% | |
| Wolf Hill Capital Management, Lp | 1.34% | 2,118,014 | $13,809,451 | $9,298,081 | -$4,511,370 | -32.67% | |
| Vanguard Capital Management Llc | 0.00% | 1,991,235 | $12,982,852 | $8,741,522 | -$4,241,330 | -32.67% | |
| Valueworks Llc | 2.68% | 1,967,228 | $12,826,327 | $8,636,131 | -$4,190,196 | -32.67% | |
| Hosking Partners Llp | 0.34% | 1,549,265 | $10,101,208 | $6,801,273 | -$3,299,935 | -32.67% | |
| Geode Capital Management, Llc | 0.00% | 1,142,258 | $7,449,558 | $5,014,513 | -$2,435,045 | -32.69% | |
| State Street Corp | 0.00% | 1,092,959 | $7,126,093 | $4,798,090 | -$2,328,003 | -32.67% | |
| Cerity Partners Llc | 0.01% | 1,087,425 | $7,090,012 | $4,773,796 | -$2,316,216 | -32.67% | |
| Russell Investments Group, Ltd. | 0.00% | 459,085 | $2,993,232 | $2,015,383 | -$977,849 | -32.67% | |
| Northern Trust Corp | 0.00% | 444,082 | $2,895,414 | $1,949,520 | -$945,894 | -32.67% | |
| Ubs Group Ag | 0.00% | 400,226 | $2,609,474 | $1,756,992 | -$852,482 | -32.67% | |
| Charles Schwab Investment Management Inc | 0.00% | 376,149 | $2,452,491 | $1,651,294 | -$801,197 | -32.67% | |
| Chou Associates Management | Francis Chou | 0.97% | 321,000 | $2,092,920 | $1,409,190 | -$683,730 | -32.67% |
| Vanguard Portfolio Management Llc | 0.00% | 311,198 | $2,029,011 | $1,366,159 | -$662,852 | -32.67% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 310,892 | $2,027,016 | $1,364,816 | -$662,200 | -32.67% |
| Vanguard Fiduciary Trust Co | 0.00% | 302,691 | $1,973,545 | $1,328,813 | -$644,732 | -32.67% | |
| Tudor Investment Corp Et Al | 0.01% | 298,409 | $1,945,627 | $1,310,016 | -$635,611 | -32.67% | |
| Goldman Sachs Group Inc | 0.00% | 289,008 | $1,884,333 | $1,268,745 | -$615,588 | -32.67% | |
| Morgan Stanley | 0.00% | 249,088 | $1,624,054 | $1,093,496 | -$530,558 | -32.67% | |
| Toronto Dominion Bank | 0.00% | 227,905 | $1,485,941 | $1,000,503 | -$485,438 | -32.67% | |
| Jtc Employer Solutions Trustee Ltd | 0.09% | 180,000 | $1,173,000 | $790,200 | -$382,800 | -32.63% | |
| Wells Fargo & Company/Mn | 0.00% | 157,381 | $1,026,123 | $690,903 | -$335,220 | -32.67% | |
| Alta Fundamental Advisers Llc | 0.35% | 148,662 | $969,276 | $652,626 | -$316,650 | -32.67% | |
| Bank Of New York Mellon Corp | 0.00% | 148,421 | $967,705 | $651,568 | -$316,137 | -32.67% | |
| Price T Rowe Associates Inc | 0.00% | 146,561 | $956,000 | $643,403 | -$312,597 | -32.70% | |
| Aqr Capital Management Llc | 0.00% | 140,983 | $919,209 | $618,915 | -$300,294 | -32.67% | |
| Nuveen, Llc | 0.00% | 134,435 | $876,516 | $590,170 | -$286,346 | -32.67% | |
| Group One Trading Llc | 0.02% | 129,044 | $841,367 | $566,503 | -$274,864 | -32.67% | |
| Quantinno Capital Management Lp | 0.00% | 127,844 | $833,543 | $561,235 | -$272,308 | -32.67% | |
| Bluefin Capital Management, Llc | 0.22% | 115,006 | $749,839 | $504,876 | -$244,963 | -32.67% | |
| State Of Wisconsin Investment Board | 0.00% | 113,013 | $736,845 | $496,127 | -$240,718 | -32.67% | |
| Squarepoint Ops Llc | 0.00% | 101,858 | $664,114 | $447,157 | -$216,957 | -32.67% | |
| Freestone Capital Holdings, Llc | 0.02% | 99,763 | $650,455 | $437,960 | -$212,495 | -32.67% | |
| Jane Street Group, Llc | 0.00% | 96,934 | $632,010 | $425,540 | -$206,470 | -32.67% | |
| Imc-Chicago, Llc | 0.01% | 88,511 | $577,092 | $388,563 | -$188,529 | -32.67% | |
| Bridgeway Capital Management, Llc | 0.01% | 81,700 | $532,684 | $358,663 | -$174,021 | -32.67% | |
| Nbc Securities, Inc. | 0.03% | 77,197 | $503,324 | $338,895 | -$164,429 | -32.67% | |
| Bank Of America Corp | 0.00% | 76,686 | $499,993 | $336,652 | -$163,341 | -32.67% | |
| Alliancebernstein L.P. | 0.00% | 77,440 | $457,670 | $339,962 | -$117,708 | -25.72% | |
| Invesco Ltd. | 0.00% | 67,532 | $440,308 | $296,465 | -$143,843 | -32.67% | |
| Trexquant Investment Lp | 0.00% | 66,458 | $433,306 | $291,751 | -$141,555 | -32.67% | |
| Rhumbline Advisers | 0.00% | 58,815 | $383,467 | $258,198 | -$125,269 | -32.67% | |
| Exoduspoint Capital Management, Lp | 0.00% | 46,010 | $299,985 | $201,984 | -$98,001 | -32.67% | |
| Deutsche Bank Ag\ | 0.00% | 43,643 | $284,552 | $191,593 | -$92,959 | -32.67% | |
| Empirical Asset Management, Llc | 0.06% | 42,300 | $275,796 | $185,697 | -$90,099 | -32.67% | |
| Citadel Advisors Llc | 0.00% | 40,954 | $267,020 | $179,788 | -$87,232 | -32.67% | |
| Barclays Plc | 0.00% | 37,008 | $241,291 | $162,465 | -$78,826 | -32.67% | |
| Empowered Funds, Llc | 0.00% | 32,235 | $210,172 | $141,512 | -$68,660 | -32.67% | |
| Two Sigma Investments, Lp | 0.00% | 31,676 | $206,528 | $139,058 | -$67,470 | -32.67% |
Frequently asked questions about MBI
Who owns the most MBI stock?
The largest holders of MBI are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MBIA INC (MBI).
Is MBI widely held by superinvestors?
Many widely followed stocks like MBI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MBI is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.