MBIA INC (MBI) Institutional Ownership Changes & 13F Activity
MBIA INC (MBI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Kahn Brothers Group, Cerity Partners Llc, Whitebox Advisors Llc, Jane Street Group, Llc, and Citadel Advisors Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +980 | +7.7% | 13,724 | $89.48K | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Sell | -134,953 | -76.7% | 40,954 | $267.02K | Q2 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Sell | -1,836 | -74.2% | 639 | $4.17K | Q2 2026 | Aug 24, 2026 |
| Mercer Global Advisors Inc | Buy | +5,123 | +26.9% | 24,154 | $157.49K | Q2 2026 | Aug 19, 2026 |
| Kahn Brothers Group | Buy | +2,157,486 | +104.9% | 4,213,920 | $27.47M | Q2 2026 | Aug 17, 2026 |
| Valueworks Llc | Buy | +35,338 | +1.8% | 1,967,228 | $12.83M | Q2 2026 | Aug 17, 2026 |
| Empowered Funds, Llc | Buy | +32,235 | — | 32,235 | $210.17K | Q2 2026 | Aug 17, 2026 |
| Cerity Partners Llc | Buy | +655,209 | +151.6% | 1,087,425 | $7.09M | Q2 2026 | Aug 14, 2026 |
| Whitebox Advisors Llc | Buy | +304,461 | — | 304,461 | $1.99M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -212,802 | -68.7% | 96,934 | $632.01K | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +115,254 | +448.0% | 140,983 | $919.21K | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -93,704 | -55.0% | 76,686 | $499.99K | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Sell | -75,844 | -42.7% | 101,858 | $664.11K | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +67,532 | — | 67,532 | $440.31K | Q2 2026 | Aug 14, 2026 |
| Group One Trading Llc | Buy | +56,907 | +78.9% | 129,044 | $841.37K | Q2 2026 | Aug 14, 2026 |
| Tudor Investment Corp Et Al | Sell | -50,596 | -14.5% | 298,409 | $1.95M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +41,379 | +165.0% | 66,458 | $433.31K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -34,671 | -10.7% | 289,008 | $1.88M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -31,452 | -73.8% | 11,164 | $72.79K | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +27,706 | +23.3% | 146,561 | $956.00K | Q2 2026 | Aug 14, 2026 |
| State Of Wisconsin Investment Board | Buy | +22,300 | +24.6% | 113,013 | $736.85K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +21,548 | +15.9% | 157,381 | $1.03M | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager Lp | Sell | -18,008 | -42.0% | 24,866 | $162.13K | Q2 2026 | Aug 14, 2026 |
| Bluefin Capital Management, Llc | Buy | +18,000 | +18.6% | 115,006 | $749.84K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +16,564 | +81.0% | 37,008 | $241.29K | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +14,803 | +87.7% | 31,676 | $206.53K | Q2 2026 | Aug 14, 2026 |
| Exoduspoint Capital Management, Lp | Buy | +12,639 | +37.9% | 46,010 | $299.99K | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +9,419 | +2.6% | 376,149 | $2.45M | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Buy | +7,200 | +9.7% | 81,700 | $532.68K | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Buy | +4,675 | +88.4% | 9,962 | $64.95K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about MBI activity
Which institutional owners are buying MBI?
Institutional owners buying MBI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MBI activity?
"Buy" means an investor increased their reported position in MBI compared to the prior reporting period. This reflects growing exposure to MBIA INC (MBI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MBI increasing?
Institutional interest in MBI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related MBI Institutional Insights
- MBI Overview
- MBI 13F Institutional Holders
- MBI Top Institutional Shareholders
- Financial Services Sector Institutional Ownership
- Financial Services Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Financial Services Stocks By Institutional Investors
- Most Sold Financial Services Stocks By Institutional Investors
- MBI Insider Trading & SEC Form 4 Activity
- MBI Articles
- Top Institutional Investor Stock Rankings