MBIA INC (MBI) Top 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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $145.65M in MBI holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MBI tracked by InsiderSet, reporting ownership valued at approximately $20.05M in its March 31, 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 $20.73M, representing an estimated gain of +3.38% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 68% of the total disclosed MBI value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Wolf Hill Capital Management, Lp, Kahn Brothers Group, 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
128
Total Reported Value
$145.65M
Largest Holder
Blackrock, Inc.
Largest Position
$20.05M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
144
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,392,982 | $20,052,523 | $20,731,120 | +$678,597 | +3.38% | |
| Wolf Hill Capital Management, Lp | 2.13% | 2,545,543 | $15,044,159 | $15,553,268 | +$509,109 | +3.38% | |
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 2.15% | 2,056,434 | $12,153,524 | $12,564,812 | +$411,288 | +3.38% |
| Vanguard Capital Management Llc | 0.00% | 1,975,239 | $11,673,662 | $12,068,710 | +$395,048 | +3.38% | |
| Valueworks Llc | 3.11% | 1,931,890 | $11,417,470 | $11,803,848 | +$386,378 | +3.38% | |
| Hosking Partners Llp | 0.34% | 1,584,913 | $9,366,836 | $9,683,818 | +$316,982 | +3.38% | |
| Geode Capital Management, Llc | 0.00% | 1,086,521 | $6,423,065 | $6,638,643 | +$215,578 | +3.36% | |
| State Street Corp | 0.00% | 1,068,753 | $6,316,330 | $6,530,081 | +$213,751 | +3.38% | |
| Ubs Group Ag | 0.00% | 666,573 | $3,939,447 | $4,072,761 | +$133,314 | +3.38% | |
| Cerity Partners Llc | 0.00% | 432,216 | $2,554,397 | $2,640,840 | +$86,443 | +3.38% | |
| Russell Investments Group, Ltd. | 0.00% | 430,033 | $2,541,494 | $2,627,502 | +$86,008 | +3.38% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 409,892 | $2,422,462 | $2,504,440 | +$81,978 | +3.38% |
| Northern Trust Corp | 0.00% | 404,341 | $2,389,655 | $2,470,524 | +$80,869 | +3.38% | |
| Charles Schwab Investment Management Inc | 0.00% | 366,730 | $2,167,374 | $2,240,720 | +$73,346 | +3.38% | |
| Tudor Investment Corp Et Al | 0.01% | 349,005 | $2,062,620 | $2,132,421 | +$69,801 | +3.38% | |
| Goldman Sachs Group Inc | 0.00% | 323,679 | $1,912,944 | $1,977,679 | +$64,735 | +3.38% | |
| Chou Associates Management | Francis Chou | 0.90% | 321,000 | $1,897,110 | $1,961,310 | +$64,200 | +3.38% |
| Vanguard Fiduciary Trust Co | 0.00% | 310,613 | $1,835,723 | $1,897,845 | +$62,122 | +3.38% | |
| Jane Street Group, Llc | 0.00% | 309,736 | $1,830,540 | $1,892,487 | +$61,947 | +3.38% | |
| Whitebox Advisors Llc | 0.03% | 304,461 | $1,799,365 | $1,860,257 | +$60,892 | +3.38% | |
| Vanguard Portfolio Management Llc | 0.00% | 264,076 | $1,560,689 | $1,613,504 | +$52,815 | +3.38% | |
| Morgan Stanley | 0.00% | 253,906 | $1,500,584 | $1,551,366 | +$50,782 | +3.38% | |
| Toronto Dominion Bank | 0.00% | 232,105 | $1,371,741 | $1,418,162 | +$46,421 | +3.38% | |
| Susquehanna International Group, Llp | 0.00% | 224,525 | $1,326,943 | $1,371,848 | +$44,905 | +3.38% | |
| Eversource Wealth Advisors, Llc | 0.04% | 66,075 | $1,159,969 | $403,718 | -$756,251 | -65.20% | |
| Squarepoint Ops Llc | 0.00% | 177,702 | $1,050,219 | $1,085,759 | +$35,540 | +3.38% | |
| Citadel Advisors Llc | 0.00% | 175,907 | $1,039,611 | $1,074,792 | +$35,181 | +3.38% | |
| Bank Of America Corp | 0.00% | 170,390 | $1,007,005 | $1,041,083 | +$34,078 | +3.38% | |
| Alta Fundamental Advisers Llc | 0.35% | 148,662 | $878,592 | $908,325 | +$29,733 | +3.38% | |
| Bank Of New York Mellon Corp | 0.00% | 142,652 | $843,074 | $871,604 | +$28,530 | +3.38% | |
| Wells Fargo & Company/Mn | 0.00% | 135,833 | $802,771 | $829,940 | +$27,169 | +3.38% | |
| Xtx Topco Ltd | 0.01% | 119,770 | $707,841 | $731,795 | +$23,954 | +3.38% | |
| Nuveen, Llc | 0.00% | 113,477 | $670,649 | $693,344 | +$22,695 | +3.38% | |
| Freestone Capital Holdings, Llc | 0.02% | 99,763 | $589,599 | $609,552 | +$19,953 | +3.38% | |
| Bluefin Capital Management, Llc | 0.56% | 97,006 | $573,305 | $592,707 | +$19,402 | +3.38% | |
| Quantinno Capital Management Lp | 0.00% | 94,764 | $560,055 | $579,008 | +$18,953 | +3.38% | |
| Walleye Capital Llc | 0.00% | 91,801 | $542,544 | $560,904 | +$18,360 | +3.38% | |
| State Of Wisconsin Investment Board | 0.00% | 90,713 | $536,114 | $554,256 | +$18,142 | +3.38% | |
| Alliancebernstein L.P. | 0.00% | 74,240 | $531,558 | $453,606 | -$77,952 | -14.66% | |
| Imc-Chicago, Llc | 0.01% | 86,994 | $514,135 | $531,533 | +$17,398 | +3.38% | |
| Nbc Securities, Inc. | 0.03% | 77,197 | $456,234 | $471,674 | +$15,440 | +3.38% | |
| Bridgeway Capital Management, Llc | 0.01% | 74,500 | $440,295 | $455,195 | +$14,900 | +3.38% | |
| Group One Trading Llc | 0.01% | 72,137 | $426,330 | $440,757 | +$14,427 | +3.38% | |
| Franklin Resources Inc | 0.00% | 64,572 | $381,621 | $394,535 | +$12,914 | +3.38% | |
| Invesco Ltd. | 0.00% | 61,975 | $366,272 | $378,667 | +$12,395 | +3.38% | |
| Rhumbline Advisers | 0.00% | 56,487 | $333,829 | $345,136 | +$11,307 | +3.39% | |
| Hightower Advisors, Llc | 0.00% | 46,251 | $273,343 | $282,594 | +$9,251 | +3.38% | |
| Engineers Gate Manager Lp | 0.00% | 42,874 | $253,385 | $261,960 | +$8,575 | +3.38% | |
| D. E. Shaw & Co., Inc. | 0.00% | 42,616 | $251,861 | $260,384 | +$8,523 | +3.38% | |
| Deutsche Bank Ag\ | 0.00% | 40,398 | $238,752 | $246,832 | +$8,080 | +3.38% |
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.