13F Insight
DOSSIER · 13F Holders · Q1 2026Financial Services · Fire, Marine & Casualty InsuranceCheap mega-capRe-rated
RLI

RLI CORP

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

CUSIP 749607107·Fire, Marine & Casualty Insurance·438 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 8.8%
vs prior quarter
13F value held
$3.1B
53.0% inst. owned
of float
Holders
438
-120 QoQ
filers reporting
Activity
+23 / −110
+953 added · −769 reduced
this quarter
Concentration
16.33%
STATE STREET CORP #1
top holder share
AI Holders Summary · Q1 2026

438 institutions reported RLI in Q1 2026. STATE STREET CORP leads at 16.3% of the visible book. -120 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
STATE STREET CORP
CIK 0000093751
$513M9.0M0.02%Q1 202602
BlackRock, Inc.
CIK 0002012383
$460M8.1M0.01%Q1 202603
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
CIK 0001021223
$400M7.0M1.17%Q1 202604
Vanguard Portfolio Management
CIK 0002100121
$274M4.8M0.01%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$234M4.1M0.01%Q1 202606
WASATCH ADVISORS LP
CIK 0000814133
$147M2.6M0.98%Q1 202607
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$142M2.5M0.01%Q1 202608
MARKEL GROUP INC.
CIK 0001096343
$137M2.4M1.14%Q1 202609
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$110M1.9M0.02%Q1 202610
Invesco Ltd.
CIK 0000914208
$102M1.8M0.02%Q1 202611
Maren Capital LLC
CIK 0001961415
$102M1.8M5.34%Q1 202612
Port Capital LLC
CIK 0001729212
$79M1.4M3.52%Q1 202613
MORGAN STANLEY
CIK 0000895421
$75M1.3M0.00%Q1 202614
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$64M1.1M0.01%Q1 202615
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$53M937K0.04%Q1 202616
JPMORGAN CHASE & CO
CIK 0000019617
$51M882K0.00%Q1 202617
ARIEL INVESTMENTS, LLC
CIK 0000936753
$50M872K0.56%Q1 202618
NORTHERN TRUST CORP
CIK 0000073124· Index
$49M867K0.01%Q1 202619
ROYCE & ASSOCIATES LP
CIK 0000906304
$49M864K0.49%Q1 202620
Bank of New York Mellon Corp
CIK 0001390777
$47M824K0.01%Q1 2026
Page 1 of 22
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