MBI
Mbia Inc
3 super-investors hold MBI worth a combined $15M. The largest position: Kahn Brothers Group at 2.2% of their portfolio. This quarter the cohort logged 1 buy and 0 sells on the name. Cohort Conviction Score: 34 — ranked #249 of 724 scored stocks.
Why super-investors own MBI
Kahn Brothers Group is the dominant holder driving what little super-investor interest exists in MBI, carrying a 2.2% portfolio weighting worth roughly $12M — the only meaningful conviction in a three-owner cohort with a combined $15M stake. Kahn added to its position in 2026Q1, the sole activity across the group this quarter. Francis Chou holds a modest 0.9% slice at $2M, while Joel Greenblatt's position is effectively negligible. Owner count has oscillated between one and two over the prior seven quarters before reaching three, suggesting this is a niche, deep-value-oriented holding rather than a broadening thesis. With no new entrants and a history of choppy, low-conviction participation, interest in MBI across the cohort remains narrow and shows no signs of accelerating.
AI-synthesized from 13F filings. Not investment advice.
Cohort owners over time
2016Q2 → 2026Q1How many of the cohort members held this stock each quarter.
Owners (3) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Kahn Brothers Group | 2.2% | 37q | $12M | 2,056,434 |
| 2 | Francis Chou | 0.9% | 38q | $2M | 321,000 |
| 3 | Joel Greenblatt | <0.1% | 37q | $1M | 175,907 |
Owners of MBI also hold
Recent activity (1)
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Kahn Brothers Group | ADD | 2.2% | +100% | $12M | May 8, 2026 |
Long US equity 13F-HR filings only. CUSIP 55262C100. Not investment advice.