MBIA Inc.
MBIA Inc. (MBI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MBI · as of Sep 30, 2025
Ownership Breakdown
129
Institutional Holders
▲ 15 vs Q2
$183.14M
Total Inst. Value
▲ $81.49M vs Q2
50.93M
Shares Outstanding
freeFloat 88.57%
24.60M
13F Shares Held
▲ 1.17M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MBI largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. surety insurance | 3.34M | 6.75% | 6.75% | $24.92B | Nov 12, 2025 | ▼ 5.1K |
VANGUARD GROUP INC surety insurance | 2.51M | 5.06% | 5.06% | $18.69B | Nov 7, 2025 | ▼ 17.3K |
WOLF HILL CAPITAL MANAGEMENT, LP surety insurance | 2.45M | 4.95% | 4.95% | $18.25B | Nov 14, 2025 | ▼ 19.7K |
VALUEWORKS LLC surety insurance | 2.07M | 4.18% | 4.18% | $15.42B | Nov 14, 2025 | ▼ 158.0K |
HOSKING PARTNERS LLP surety insurance | 1.55M | 3.13% | 3.13% | $11.56B | Oct 23, 2025 | ▼ 10.0K |
STATE STREET CORP surety insurance | 1.07M | 2.17% | 2.17% | $8.01B | Nov 14, 2025 | ▲ 50.3K |
GEODE CAPITAL MANAGEMENT, LLC surety insurance | 1.07M | 2.16% | 2.16% | $7.96B | Nov 12, 2025 | ▲ 25.2K |
TCW GROUP INC surety insurance | 1.04M | 2.10% | 2.10% | $7.74B | Nov 14, 2025 | ▲ 10.5K |
KAHN BROTHERS GROUP INC surety insurance | 1.03M | 2.08% | 2.08% | $7.67B | Nov 12, 2025 | NEW |
UBS GROUP AG surety insurance | 1.03M | 2.07% | 2.07% | $7.65B | Nov 13, 2025 | ▲ 432.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
22
Increased
+2.17M shares6
New Positions
first time holders18
Decreased
−939.8K shares0
Sold Out
fully exitedNet shares change (top 50)
+1.23M
+2.17M / −939.8K
Net new holders
+10
6 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MBI insider trading · insider activity
Source: SEC Form 4
5
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
VAUGHAN RICHARD C director | May 12, 2026 | Award | 16,181 | $6.18 | $100.0K | 103.1K | Form 4 ↗ |
Shasta Theodore director | May 12, 2026 | Award | 16,181 | $6.18 | $100.0K | 66.3K | Form 4 ↗ |
Innis-Thompson Janice L. director | May 12, 2026 | Award | 16,181 | $6.18 | $100.0K | 83.3K | Form 4 ↗ |
GILBERT STEVEN J director | May 12, 2026 | Award | 16,181 | $6.18 | $100.0K | 125.4K | Form 4 ↗ |
DEWBREY DIANE L director | May 12, 2026 | Award | 16,181 | $6.18 | $100.0K | 121.2K | Form 4 ↗ |
Fallon William C CEO & President | Mar 4, 2026 | Tax Withhold | 39,658 | $6.88 | $272.8K | 2.83M | Form 4 ↗ |
Bergonzi Adam T. Assistant Vice President | Mar 4, 2026 | Tax Withhold | 13,280 | $6.88 | $91.4K | 943.3K | Form 4 ↗ |
Schachinger Joseph R. EVP, CFO and Treasurer | Mar 4, 2026 | Tax Withhold | 2,400 | $6.88 | $16.5K | 248.1K | Form 4 ↗ |
Young Christopher H. Assistant Vice President | Mar 4, 2026 | Tax Withhold | 8,668 | $6.88 | $59.6K | 651.5K | Form 4 ↗ |
Avitabile Daniel M. Assistant Vice President | Mar 4, 2026 | Tax Withhold | 8,668 | $6.88 | $59.6K | 650.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
MBIA Inc. (MBI) is primarily owned by institutional investors, who hold approximately 48.3% of total shares outstanding. Company insiders own approximately 11.43%, while retail and public investors account for the remaining 40.28%.
The largest institutional shareholder of MBIA Inc. is BLACKROCK, INC., holding approximately 3.34 million shares — equal to 6.75% of outstanding shares — as of September 30, 2025.
A total of 129 institutional investors currently hold MBI stock, with a combined institutional value of approximately $183,143,870 as of the most recent 13F filing period.
Frequently asked questions
MBI ownershipMBIA Inc. (MBI) is primarily owned by institutional investors, who hold approximately 48.3% of shares. The largest shareholder is BLACKROCK, INC. with a 6.75% stake. Company insiders hold 11.43%. Data sourced from SEC Form 13F as of September 30, 2025.