13F Insight
DOSSIER · 13F-HR · Q1 2026

Madison Asset Management, LLC

$8.1B in tracked AUM across 349 positions as of Q1 2026.

MA
CIK 0001299351 · last filed Mar 31, 2026
Total AUM
$8.1B
as of Q1 2026
Holdings
349
—
positions
Whale Score
63
63
tracked
Activity
—
no data
changes this Q
AI Analysis · Q1 2026

Madison Asset Management, LLC filed its latest 13F-HR for Q1 2026. See the latest holdings and position changes below.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
G0450A105
Arch Capital Group Ltd
$391M4.1M4.9%02
ROST
Ross Stores Inc
$306M1.4M3.8%03
PCAR
PACCAR Inc
$183M1.6M2.3%04
GOOG
Alphabet Inc
$181M630K2.2%05
APH
Amphenol Corp
$158M1.3M2.0%06
CSL
Carlisle Cos Inc
$151M454K1.9%07
BRO
Brown & Brown Inc
$150M2.3M1.9%08
AMZN
Amazon.com Inc
$139M667K1.7%09
CDW
CDW Corp/DE
$134M1.1M1.7%10
LH
Labcorp Holdings Inc
$131M491K1.6%

Filing history

2026Q1Mar 31
$8.1B▼ 7.3%
349 positionsView →2025Q4Dec 31
$8.7B▼ 4.1%
342 positionsView →2025Q3Sep 30
$9.1B▼ 2.1%
336 positionsView →2025Q2Jun 30
$9.3B▲ 3.2%
338 positionsLocked2025Q1Mar 31
$9.0B▲ 1.2%
349 positionsLocked2024Q4Dec 31
$8.9B▼ 0.3%
335 positionsLocked2024Q3Sep 30
$8.9B▲ 10.1%
328 positionsLocked2024Q2Jun 30
$8.1B▼ 0.6%
330 positionsLocked2024Q1Mar 31
$8.1B▲ 10.2%
330 positionsLocked2023Q4Dec 31
$7.4B▲ 8.3%
321 positionsLocked2023Q3Sep 30
$6.8B▼ 0.6%
321 positionsLocked2023Q2Jun 30
$6.9B▲ 4.1%
314 positionsLocked
Showing 12 of 26