CoStar shares owned by Harbor Advisors
Historical chart of Harbor Advisors investment in CoStar
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All positions including CoStar held by Harbor Advisors consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in CoStar by Harbor Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $1.9M | 23k | 84.37 |
| 2025-06-30 | $1.8M | 23k | 80.40 |
| 2025-03-31 | $1.8M | 23k | 79.23 |
| 2024-12-31 | $1.6M | 23k | 71.59 |
| 2024-09-30 | $1.5M | 20k | 75.44 |
| 2024-06-30 | $1.3M | 17k | 74.14 |
| 2024-03-31 | $1.6M | 17k | 96.60 |
| 2023-12-31 | $1.5M | 17k | 87.39 |
| 2023-09-30 | $774k | 10k | 76.89 |
| 2023-06-30 | $895k | 10k | 89.00 |
| 2023-03-31 | $693k | 10k | 68.85 |
| 2022-12-31 | $777k | 10k | 77.28 |
| 2022-09-30 | $701k | 10k | 69.68 |
| 2022-06-30 | $608k | 10k | 60.44 |
| 2022-03-31 | $670k | 10k | 66.60 |
| 2021-12-31 | $795k | 10k | 79.03 |
| 2021-09-30 | $866k | 10k | 86.08 |
| 2021-06-30 | $833k | 10k | 82.80 |
| 2021-03-31 | $827k | 1.0k | 822.07 |
| 2020-12-31 | $930k | 1.0k | 924.45 |
| 2020-09-30 | $854k | 1.0k | 848.91 |
| 2020-06-30 | $715k | 1.0k | 710.74 |
| 2020-03-31 | $591k | 1.0k | 587.48 |
| 2019-12-31 | $602k | 1.0k | 598.41 |
| 2019-09-30 | $597k | 1.0k | 593.44 |
| 2019-06-30 | $557k | 1.0k | 553.68 |
| 2019-03-31 | $376k | 806 | 466.50 |
| 2018-12-31 | $272k | 806 | 337.47 |
| 2018-09-30 | $339k | 806 | 420.60 |
| 2018-06-30 | $333k | 806 | 413.15 |
| 2018-03-31 | $292k | 806 | 362.28 |