13F Insight
DOSSIER · 13F Holders · Q1 2026Cheap mega-capRe-rated
MBI

MBIA INC

138 institutions still hold MBIA INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 55262C100·138 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 8.8%
vs prior quarter
13F value held
$130M
67.0% inst. owned
of float
Holders
138
+78 QoQ
filers reporting
Activity
+84 / −74
+794 added · −752 reduced
this quarter
Concentration
15.37%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

138 institutions reported MBI in Q1 2026. BlackRock, Inc. leads at 15.4% of the visible book. +78 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$20M3.4M0.00%Q1 202602
Wolf Hill Capital Management, LP
CIK 0001785988
$15M2.5M1.46%Q1 202603
VALUEWORKS LLC
CIK 0001282189
$15M2.1M3.89%Q4 202504
KAHN BROTHERS GROUP INC
CIK 0001039565
$12M2.1M2.15%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$12M2.0M0.00%Q1 202606
Hosking Partners LLP
CIK 0001650135
$9M1.6M0.34%Q1 202607
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$6M1.1M0.00%Q1 202608
STATE STREET CORP
CIK 0000093751
$6M1.1M0.00%Q1 202609
TCW GROUP INC
CIK 0000850401
$6M1.0M0.05%Q1 202610
UBS Group AG
CIK 0001610520
$4M667K0.00%Q1 202611
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$3M536K0.00%Q1 202612
TORONTO DOMINION BANK
CIK 0000947263
$3M482K0.00%Q1 202613
Cerity Partners LLC
CIK 0001566475
$3M432K0.00%Q1 202614
Russell Investments Group, Ltd.
CIK 0001692234
$3M430K0.00%Q1 202615
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$2M423K0.00%Q1 202616
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$2M410K0.00%Q1 202617
NORTHERN TRUST CORP
CIK 0000073124· Index
$2M404K0.00%Q1 202618
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$2M367K0.00%Q1 202619
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
$2M349K0.00%Q1 202620
CITADEL ADVISORS LLC
CIK 0001423053
$2M272K0.00%Q4 2025
Page 1 of 7
118 more holders available. Log in →