Institutional Manager · CIK 0001299351
MADISON ASSET MANAGEMENT, LLC
MADISON, WI · File #028-10986
Latest AUM
$8.70B
Positions
342
Top-10 Concentration
36.4%
Filings
12
Sector Allocation
Filing History
View all filings →- 13F HOLDINGS REPORTQ/E Dec 2025342 pos · $8.70B
- 13F HOLDINGS REPORTQ/E Sep 2025336 pos · $9.07B
- 13F HOLDINGS REPORTQ/E Jun 2025338 pos · $9.26B
- 13F HOLDINGS REPORTQ/E Mar 2025349 pos · $8.98B
- 13F HOLDINGS REPORTQ/E Dec 2024335 pos · $8.87B
- 13F HOLDINGS REPORTQ/E Sep 2024328 pos · $8.89B
- 13F HOLDINGS REPORTQ/E Jun 2024330 pos · $8.08B
- 13F HOLDINGS REPORTQ/E Mar 2024330 pos · $8.13B
- 13F HOLDINGS REPORTQ/E Dec 2023321 pos · $6.81B
- 13F HOLDINGS REPORTQ/E Sep 2023314 pos · $6.85B
- 13F HOLDINGS REPORTQ/E Jun 2023299 pos · $6.58B
- 13F HOLDINGS REPORTQ/E Mar 2023317 pos · $6.4M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Arch Capital Group Ltd | G0450A105 | 4,332,431 | $415.6M | 6.99% |
| 2 | Ross Stores Inc | ROST | 1,507,387 | $271.5M | 4.57% |
| 3 | PACCAR Inc | PCAR | 2,282,440 | $249.9M | 4.20% |
| 4 | Alphabet Inc | GOOG | 769,985 | $241.6M | 4.06% |
| 5 | Amphenol Corp | 032095101 | 1,340,841 | $181.2M | 3.05% |
| 6 | Gartner Inc | IT | 675,398 | $170.4M | 2.86% |
| 7 | Amazon.com Inc | AMZN | 702,961 | $162.3M | 2.73% |
| 8 | Copart Inc | CPRT | 4,072,359 | $159.4M | 2.68% |
| 9 | Brown & Brown Inc | BRO | 1,987,110 | $158.4M | 2.66% |
| 10 | CDW Corp/DE | CDW | 1,154,334 | $157.2M | 2.64% |
| 11 | Medpace Holdings Inc | MEDP | 277,757 | $156.0M | 2.62% |
| 12 | Carlisle Cos Inc | 142339100 | 475,632 | $152.1M | 2.56% |
| 13 | MKS Inc | MKSI | 921,450 | $147.2M | 2.48% |
| 14 | Labcorp Holdings Inc | LH | 525,878 | $131.9M | 2.22% |
| 15 | Danaher Corp | 235851102 | 545,044 | $124.8M | 2.10% |
| 16 | Visa Inc | V | 355,548 | $124.7M | 2.10% |
| 17 | WR Berkley Corp | WRB-PH | 1,724,598 | $120.9M | 2.03% |
| 18 | Texas Instruments Inc | 882508104 | 677,878 | $117.6M | 1.98% |
| 19 | Waters Corp | 941848103 | 293,164 | $111.4M | 1.87% |
| 20 | Teledyne Technologies Inc | TDY | 210,832 | $107.7M | 1.81% |