# COSTAR GROUP INC (CSGP)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/CSGP/

- Reporting holders: 19
- Reported value: $66.5M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Douglas Lane & Associates, LLC](https://holderbook.com/funds/1672594-douglas-lane-associates-llc/) | $54.3M | 1,980,027 | 0.7% | 8 |
| [S.E.E.D. Planning Group LLC](https://holderbook.com/funds/1765515-s-e-e-d-planning-group-llc/) | $8.7M | 318,719 | 2.1% | 19 |
| [Red Spruce Capital, LLC](https://holderbook.com/funds/1795356-red-spruce-capital-llc/) | $2.0M | 72,897 | 0.7% | 7 |
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $427.7K | 15,610 | 0.0% | 12 |
| [Lincoln Capital LLC](https://holderbook.com/funds/1633862-lincoln-capital-llc/) | $387.6K | 14,228 | 0.1% | 7 |
| [Wedmont Private Capital](https://holderbook.com/funds/1904274-wedmont-private-capital/) | $300.9K | 10,093 | 0.0% | 2 |
| [Farther Finance Advisors, LLC](https://holderbook.com/funds/1992825-farther-finance-advisors-llc/) | $189.6K | 6,918 | 0.0% | 16 |
| [Versant Capital Management, Inc](https://holderbook.com/funds/1735057-versant-capital-management-inc/) | $153.6K | 5,606 | 0.0% | 18 |
| [MassMutual Private Wealth & Trust, FSB](https://holderbook.com/funds/1103653-massmutual-private-wealth-trust-fsb/) | $64.8K | 2,365 | 0.0% | 21 |
| [GILPIN WEALTH MANAGEMENT, LLC](https://holderbook.com/funds/2058144-gilpin-wealth-management-llc/) | $6.3K | 229 | 0.0% | 1 |
| [GK Wealth Management LLC](https://holderbook.com/funds/2069222-gk-wealth-management-llc/) | $6.0K | 220 | 0.0% | 1 |
| [AMERICAN NATIONAL BANK & TRUST](https://holderbook.com/funds/1272164-american-national-bank-trust/) | $2.6K | 96 | 0.0% | 1 |
| [Planning Strategies Inc.](https://holderbook.com/funds/2139665-planning-strategies-inc/) | $1.6K | 57 | 0.0% | 2 |
| [CoreCap Advisors, LLC](https://holderbook.com/funds/1902501-corecap-advisors-llc/) | $1.3K | 47 | 0.0% | 11 |
| [Davis Capital Management](https://holderbook.com/funds/1811806-davis-capital-management/) | $1.1K | 39 | 0.0% | 13 |
| [ELEVATION WEALTH PARTNERS, LLC](https://holderbook.com/funds/1976256-elevation-wealth-partners-llc/) | $987 | 36 | 0.0% | 5 |
| [Marquette Asset Management, LLC](https://holderbook.com/funds/1395067-marquette-asset-management-llc/) | $494 | 18 | 0.0% | 5 |
| [CX Institutional](https://holderbook.com/funds/1737089-cx-institutional/) | $90 | 3,299 | 0.0% | 7 |
| [Grove Bank & Trust](https://holderbook.com/funds/1662212-grove-bank-trust/) | $55 | 2 | 0.0% | 8 |
| [EASTERN BANK](https://holderbook.com/funds/1126395-eastern-bank/) | $27 | 1 | 0.0% | 7 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 19 | $66.5M |
| Q2 2026 | 764 | $12.6B |
| Q1 2026 | 800 | $17.2B |
| Q4 2025 | 863 | $29.0B |
| Q3 2025 | 914 | $35.4B |
| Q2 2025 | 888 | $34.6B |
| Q1 2025 | 866 | $34.5B |
| Q4 2024 | 813 | $29.5B |
| Q3 2024 | 780 | $30.4B |
| Q2 2024 | 771 | $29.5B |
| Q1 2024 | 772 | $40.3B |
| Q4 2023 | 743 | $34.8B |