CSGP — COSTAR GROUP INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying CSGP?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 3 tracked investors who changed their CSGP position last quarter, 2 bought and 1 sold (67% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 46/100 in a Overheat regime).
- +2 tracked investors added or increased positions last quarter (Steve Cohen, Paul Tudor Jones)
- +4 tracked investors reported holding CSGP at their latest filing
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 10/21/2026.
About COSTAR GROUP INC (CSGP)
COSTAR GROUP INC (CSGP) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Chase Coleman (Tiger Global Management), valued at $274M. Across recent filings, tracked investors recorded 9 new positions, 12 increased, 13 reduced, and 7 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in CSGP
How many top investors track CSGP
A small number of top investors own this.
CSGP Ownership Composition
How COSTAR GROUP INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant74.8%
- Macro25.2%
Tracked investors currently reporting CSGP
4 tracked investors have since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares1.2MValue$35.1M% Portfolio0.00%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares870.6KValue$24.7M% Portfolio0.01%
- Steve CohenJun 30, 2026Point72 Asset ManagementShares151.3KValue$4.3M% Portfolio0.00%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares759.5KValue$21.5M% Portfolio0.03%
Previously held CSGP
These investors reported CSGP in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Chase Coleman | Tiger Global Management | 1.5M | $60.5M | Mar 31, 2026 |
| Andreas Halvorsen | Viking Global Investors | 1.4M | $97M | Dec 31, 2025 |
| Daniel Loeb | Third Point LLC | 3.2M | $212.8M | Dec 31, 2025 |
| Ray Dalio | Bridgewater Associates | 432.7K | $34.8M | Jun 30, 2025 |
Recent activity
- New$156.5MMay 15, 2025
- Increased$248M(56.20%)Aug 14, 2025
- Reduced$254.5M(-2.20%)Nov 14, 2025
- Increased$212.8M(4.91%)Feb 17, 2026
- Sold$0(-100.00%)May 15, 2026
- $232.3MFeb 14, 2025
- Unchanged$257.1M(0.00%)May 15, 2025
- Unchanged$260.9M(0.00%)Aug 14, 2025
- Unchanged$273.8M(0.00%)Nov 14, 2025
- Reduced$151.9M(-30.38%)Feb 17, 2026
- Reduced$60.5M(-33.60%)May 15, 2026
- Sold$0(-100.00%)Aug 14, 2026
- Reduced$83.2M(-7.81%)Feb 14, 2025
- $0(-100.00%)May 15, 2025
- $258.8MAug 14, 2025
- Reduced$156.1M(-42.53%)Nov 14, 2025
- Reduced$97M(-22.01%)Feb 17, 2026
- $0(-100.00%)May 15, 2026
- Reduced$36.2M(-8.48%)Feb 14, 2024
- Reduced$19.9M(-50.27%)May 14, 2024
- Increased$25.4M(66.02%)Aug 14, 2024
- Increased$31.9M(23.70%)Nov 13, 2024
- Increased$63M(107.98%)Feb 13, 2025
- Increased$78.1M(12.06%)May 14, 2025
- Reduced$34.8M(-56.11%)Aug 13, 2025
- Sold$0(-100.00%)Nov 13, 2025
- New$606.5KFeb 13, 2026
- Sold$0(-100.00%)May 15, 2026
- New$48.8MNov 14, 2024
- Reduced$29.9M(-35.42%)Feb 14, 2025
- Sold$0(-100.00%)Jul 21, 2025
- New$242.1KFeb 17, 2026
- Increased$1.4M(897.22%)May 15, 2026
- Increased$4.3M(321.49%)Aug 14, 2026
- $21.6MAug 14, 2024
- Reduced$716.7K(-96.74%)Nov 14, 2024
- Increased$902K(32.63%)Feb 14, 2025
- Reduced$253.5K(-74.60%)May 15, 2025
- Increased$595K(131.25%)Aug 14, 2025
- Increased$1.3M(108.11%)Dec 9, 2025
- Reduced$15.5M(-2.61%)May 15, 2026
- Increased$21.5M(97.28%)Aug 14, 2026
- New$34.8MNov 13, 2023
- $95.1MNov 14, 2024
Frequently asked questions
- How many institutional investors hold CSGP?
- 4 tracked institutional investors disclosed a position in CSGP (COSTAR GROUP INC) in their most recent 13F filing.
- Who is the largest institutional holder of CSGP?
- Chase Coleman, Tiger Global Management, holds the largest disclosed position in CSGP, valued at $274M.
- Did institutional ownership of CSGP increase or decrease?
- Across recent 13F filings, tracked investors recorded 9 new positions, 12 increased, 13 reduced, and 7 fully exited CSGP.
- Where does this CSGP ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.