CoStar shares owned by Mattern Capital Management
Quarter-by-quarter ownership of CoStar (CSGP) shares owned by Mattern Capital Management
from 13F filings
Historical chart of Mattern Capital Management investment in CoStar
Tip: Access up to 7 years of quarterly data
All positions including CoStar held by Mattern Capital Management consolidated in one spreadsheet with up to 7 years of data
Download as csvQuarterly reported holdings in CoStar by Mattern Capital Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $1.1M | 13k | 84.37 |
| 2025-06-30 | $890k | 11k | 80.40 |
| 2025-03-31 | $784k | 9.9k | 79.23 |
| 2024-12-31 | $636k | 8.9k | 71.59 |
| 2024-09-30 | $580k | 7.7k | 75.44 |
| 2024-06-30 | $456k | 6.1k | 74.14 |
| 2024-03-31 | $425k | 4.4k | 96.60 |
More positions owned by Mattern Capital Management
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