COSTAR GROUP INC (CSGP): Institutional Ownership
Hedge funds and institutional managers reporting a position in CSGP · Real Estate. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
29
13F filers
Aggregate Value
$1.1B
Across holders
Last Price
$30.25
2026-06-26
Sector
Real Estate
GICS
Holder activity14 new8 added7 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| AKRE CAPITAL MANAGEMENT LLC CIK 0001112520 | Institutional Manager | 10.35M | $417.4M | 37.8% | 6.8% | Added | +$29.5M | Q1 2026 |
| Third Point LLC CIK 0001040273 | Hedge Fund | 3.17M | $212.8M | 19.3% | 2.9% | New | — | Q4 2025 |
| BAILLIE GIFFORD & CO CIK 0001088875 | Institutional Manager | 3.39M | $136.6M | 12.4% | 0.1% | Reduced | $-4.2M | Q1 2026 |
| VIKING GLOBAL INVESTORS LP CIK 0001103804 | Hedge Fund | 1.44M | $97.0M | 8.8% | 0.3% | New | — | Q4 2025 |
| TIGER GLOBAL MANAGEMENT LLC CIK 0001167483 | Hedge Fund | 1.50M | $60.5M | 5.5% | 0.3% | Reduced | $-30.6M | Q1 2026 |
| Corvex Management LP CIK 0001535472 | Hedge Fund | 852K | $34.4M | 3.1% | 1.4% | New | — | Q1 2026 |
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 804K | $32.4M | 2.9% | 0.0% | Added | +$26.3M | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 537K | $21.7M | 2.0% | 0.1% | Added | +$18.3M | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 447K | $18.0M | 1.6% | 0.1% | Added | +$12.8M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 378K | $15.3M | 1.4% | 0.0% | Reduced | $-182K | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 378K | $15.2M | 1.4% | 0.0% | Added | +$14.6M | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 303K | $12.2M | 1.1% | 0.0% | Added | +$12.1M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 134K | $5.4M | 0.5% | 0.0% | Reduced | $-32K | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 118K | $4.7M | 0.4% | 0.0% | Added | +$1.7M | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 93K | $3.8M | 0.3% | 0.0% | New | — | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 84K | $3.4M | 0.3% | 0.1% | New | — | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 39K | $2.6M | 0.2% | 0.0% | New | — | Q4 2025 |
| Man Group plc CIK 0001637460 | Hedge Fund | 65K | $2.6M | 0.2% | 0.0% | Reduced | $-6.5M | Q1 2026 |
| Politan Capital Management LP CIK 0001885245 | Hedge Fund | 28K | $2.3M | 0.2% | 0.2% | New | — | Q3 2025 |
| MARKEL CORP (MKL) CIK 0001096343 | Hedge Fund | 19K | $1.5M | 0.1% | 0.0% | New | — | Q2 2025 |
Added
Institutional Manager
$417.4M· 37.8% of total· 6.8% port· 10.35M sh· +$29.5M QoQ· Q1 2026
New
Hedge Fund
$212.8M· 19.3% of total· 2.9% port· 3.17M sh· — QoQ· Q4 2025
Reduced
Institutional Manager
$136.6M· 12.4% of total· 0.1% port· 3.39M sh· $-4.2M QoQ· Q1 2026
New
Hedge Fund
$97.0M· 8.8% of total· 0.3% port· 1.44M sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$60.5M· 5.5% of total· 0.3% port· 1.50M sh· $-30.6M QoQ· Q1 2026
New
Hedge Fund
$34.4M· 3.1% of total· 1.4% port· 852K sh· — QoQ· Q1 2026
Added
Institutional Manager
$32.4M· 2.9% of total· 0.0% port· 804K sh· +$26.3M QoQ· Q1 2026
Added
Hedge Fund
$21.7M· 2.0% of total· 0.1% port· 537K sh· +$18.3M QoQ· Q1 2026
Added
Hedge Fund
$18.0M· 1.6% of total· 0.1% port· 447K sh· +$12.8M QoQ· Q1 2026
Reduced
Hedge Fund
$15.3M· 1.4% of total· 0.0% port· 378K sh· $-182K QoQ· Q1 2026
Added
Hedge Fund
$15.2M· 1.4% of total· 0.0% port· 378K sh· +$14.6M QoQ· Q1 2026
Added
Hedge Fund
$12.2M· 1.1% of total· 0.0% port· 303K sh· +$12.1M QoQ· Q1 2026
Reduced
Hedge Fund
$5.4M· 0.5% of total· 0.0% port· 134K sh· $-32K QoQ· Q1 2026
Added
Hedge Fund
$4.7M· 0.4% of total· 0.0% port· 118K sh· +$1.7M QoQ· Q1 2026
New
Hedge Fund
$3.8M· 0.3% of total· 0.0% port· 93K sh· — QoQ· Q1 2026
New
Hedge Fund
$3.4M· 0.3% of total· 0.1% port· 84K sh· — QoQ· Q1 2026
New
Hedge Fund
$2.6M· 0.2% of total· 0.0% port· 39K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$2.6M· 0.2% of total· 0.0% port· 65K sh· $-6.5M QoQ· Q1 2026
New
Hedge Fund
$2.3M· 0.2% of total· 0.2% port· 28K sh· — QoQ· Q3 2025
New
Hedge Fund
$1.5M· 0.1% of total· 0.0% port· 19K sh· — QoQ· Q2 2025
New
Hedge Fund
$1.1M· 0.1% of total· 0.0% port· 16K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$988K· 0.1% of total· 0.0% port· 24K sh· $-4.6M QoQ· Q1 2026
New
Institutional Manager
$673K· 0.1% of total· 0.0% port· 8K sh· — QoQ· Q2 2025
New
Hedge Fund
$607K· 0.1% of total· 0.0% port· 9K sh· — QoQ· Q4 2025
New
Hedge Fund
$383K· 0.0% of total· 0.0% port· 9K sh· — QoQ· Q1 2026
Added
Hedge Fund
$288K· 0.0% of total· 0.0% port· 7K sh· +$288K QoQ· Q1 2026
New
Family Office
$283K· 0.0% of total· 0.0% port· 4K sh· — QoQ· Q2 2025
Reduced
Hedge Fund
$255K· 0.0% of total· 0.0% port· 6K sh· $-686 QoQ· Q1 2026
New
Hedge Fund
$13K· 0.0% of total· 0.0% port· 200 sh· — QoQ· Q4 2025
1–20 of 29
1 / 2