Costar Group, Inc.
CSGP- Exchange
- Nasdaq
- Industry
- Services-Business Services, NEC
- SEC CIK
- 0001057352
In the last 90 days, Costar Group, Inc. insiders filed 1 open-market purchase and 2 sales; 760 institutions reported holding it in 13F filings for Q2 2026, worth $11.7B in total; superinvestors Akre Capital Management and Weitz Investment Management hold it.
13F holders, Q1 2025
Institutional positions in Costar Group, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 858
- +66 vs. Q4 2024
- Shares held
- 428.6M
- +26.5M (+6.6%) vs. Q4 2024
- Total value
- $33.9B
- +$5.15B (+17.9%) vs. Q4 2024
- New holders
- 141
- 378 more added
- Sold out
- 75
- 263 more reduced
13 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CSGP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 760 | $11.7B |
| Q1 2026 | 797 | $16.8B |
| Q4 2025 | 847 | $28.4B |
| Q3 2025 | 905 | $34.9B |
| Q2 2025 | 873 | $34.2B |
| Q1 2025 | 858 | $33.9B |
| Q4 2024 | 805 | $28.9B |
| Q3 2024 | 773 | $30.0B |
| Q2 2024 | 767 | $29.3B |
| Q1 2024 | 767 | $38.4B |
| Q4 2023 | 737 | $34.4B |
| Q3 2023 | 690 | $30.1B |
| Q2 2023 | 714 | $35.5B |
| Q1 2023 | 692 | $26.7B |
| Q4 2022 | 704 | $30.4B |
| Q3 2022 | 634 | $28.0B |
| Q2 2022 | 591 | $23.0B |
| Q1 2022 | 589 | $25.2B |
| Q4 2021 | 633 | $29.6B |
| Q3 2021 | 594 | $32.3B |
| Q2 2021 | 607 | $31.1B |
| Q1 2021 | 593 | $31.2B |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Canada Pension Plan Investment Board | 467,135 | $37.0M | 0.04% | −662,172−58.6% | Reduced |
| Ironvine Capital Partners, LLC | 457,958 | $36.3M | 3.94% | −8,753−1.9% | Reduced |
| Ycg, LLC | 446,893 | $35.4M | 2.77% | −1,638−0.4% | Reduced |
| LPL Financial LLC | 446,550 | $35.4M | 0.01% | +13,781+3.2% | Added |
| Bank of Montreal | 442,916 | $35.1M | 0.02% | −101,468−18.6% | Reduced |
| Frontier Capital Management Co LLC | 439,425 | $34.8M | 0.38% | +44,809+11.4% | Added |
| Caden Capital Partners, LP | 437,274 | $34.6M | 10.69% | +49,411+12.7% | Added |
| Russell Investments Group, Ltd. | 424,796 | $33.7M | 0.05% | +112,665+36.1% | Added |
| Royal London Asset Management Ltd | 416,974 | $33.0M | 0.08% | +14,688+3.7% | Added |
| State Board of Administration of Florida Retirement System | 408,765 | $32.4M | 0.06% | −2,848−0.7% | Reduced |
| Visualize Group LP | 404,091 | $32.0M | 10.54% | +183,700+83.4% | Added |
| Geneva Capital Management LLC | 403,205 | $31.9M | 0.60% | +12,534+3.2% | Added |
| Clearbridge Investments, LLC | 398,206 | $31.5M | 0.03% | −10,432−2.6% | Reduced |
| NZS Capital, LLC | 396,308 | $31.4M | 1.42% | −37,192−8.6% | Reduced |
| No Street GP LP | 395,000 | $31.3M | 2.45% | +40,000+11.3% | Added |
| ThornTree Capital Partners LP | 393,198 | $31.2M | 6.88% | −70,152−15.1% | Reduced |
| Great West Life Assurance Co | 389,913 | $31.0M | 0.05% | +1,133+0.3% | Added |
| Adage Capital Partners GP, L.L.C. | 384,600 | $30.5M | 0.06% | +133,052+52.9% | Added |
| Nomura Holdings Inc | 363,097 | $28.8M | 0.15% | +290,445+399.8% | Added |
| Ninety One UK Ltd | 356,947 | $28.3M | 0.08% | −35,491−9.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 355,496 | $28.2M | 0.06% | +35,621+11.1% | Added |
| Granahan Investment Management Inc | 347,693 | $27.5M | 1.37% | −10,513−2.9% | Reduced |
| National Bank of Canada | 342,341 | $27.1M | 0.03% | +81,760+31.4% | Added |
| Victory Capital Management Inc | 337,200 | $26.7M | 0.03% | −318,590−48.6% | Reduced |
| Motley Fool Wealth Management, LLC | 330,575 | $26.2M | 1.55% | −28,864−8.0% | Reduced |
| Millennium Management LLC | 325,428 | $25.8M | 0.03% | −109,022−25.1% | Reduced |
| New York State Teachers Retirement System | 320,422 | $25.4M | 0.06% | −10,157−3.1% | Reduced |
| Kornitzer Capital Management Inc | 309,981 | $24.6M | 0.51% | −215−0.1% | Reduced |
| Susquehanna Fundamental Investments, LLC | 309,257 | $24.5M | 0.41% | +287,065+1,293.6% | Added |
| Freestone Grove Partners LP | 306,621 | $24.3M | 0.25% | +306,621 | New |
| Asset Management One Co.,Ltd. | 300,684 | $23.8M | 0.08% | +12,706+4.4% | Added |
| Stifel Financial Corp | 296,234 | $23.5M | 0.02% | +20,729+7.5% | Added |
| Tran Capital Management, L.P. | 288,760 | $22.9M | 3.08% | +288,760 | New |
| Ashford Capital Management Inc | 286,770 | $22.7M | 2.93% | −31,378−9.9% | Reduced |
| Landmark Investment Partners, L.P. | 282,966 | $22.4M | 7.02% | +245,247+650.2% | Added |
| Oppenheimer Asset Management Inc. | 280,752 | $22.2M | 0.28% | +8,619+3.2% | Added |
| Baskin Financial Services Inc. | 279,646 | $22.2M | 1.80% | +1,821+0.7% | Added |
| First Trust Advisors LP | 277,074 | $22.0M | 0.02% | −30,471−9.9% | Reduced |
| Manufacturers Life Insurance Company, The | 275,800 | $21.9M | 0.02% | +14,454+5.5% | Added |
| Ruffer LLP | 270,412 | $21.4M | 0.82% | +108,233+66.7% | Added |
| Gillson Capital LP | 269,170 | $21.3M | 1.82% | +49,633+22.6% | Added |
| Aureus Asset Management, LLC | 260,224 | $20.6M | 1.44% | +10,688+4.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 258,477 | $20.5M | 0.04% | −7,592−2.9% | Reduced |
| Korea Investment CORP | 255,619 | $20.3M | 0.05% | −24,191−8.6% | Reduced |
| Standard Life Aberdeen plc | 248,869 | $19.6M | 0.04% | +130,277+109.9% | Added |
| Gilder Gagnon Howe & Co LLC | 245,760 | $19.5M | 0.25% | +79,763+48.1% | Added |
| State of Wisconsin Investment Board | 237,813 | $18.8M | 0.05% | +12,845+5.7% | Added |
| Prudential Financial Inc | 225,441 | $17.9M | 0.03% | +5,361+2.4% | Added |
| Chevy Chase Trust Holdings, Inc. | 221,229 | $17.5M | 0.06% | +3,378+1.6% | Added |
| NS Partners Ltd | 219,520 | $17.4M | 0.76% | +4,675+2.2% | Added |
| FIL Ltd | 219,375 | $17.4M | 0.02% | +21,950+11.1% | Added |
| New York State Common Retirement Fund | 217,225 | $17.2M | 0.03% | −41,255−16.0% | Reduced |
| Nicholas Company, Inc. | 214,399 | $17.0M | 0.29% | −150.0% | Reduced |
| Susquehanna International Group, LLP | 209,553 | $16.6M | 0.03% | +31,613+17.8% | Added |
| Rafferty Asset Management, LLC | 207,792 | $16.5M | 0.07% | −26,050−11.1% | Reduced |
| APG Asset Management N.V. | 220,900 | $16.2M | 0.05% | +3,400+1.6% | Added |
| Thrivent Financial for Lutherans | 203,680 | $16.1M | 0.04% | +446+0.2% | Added |
| Erste Asset Management GmbH | 200,000 | $15.8M | 0.20% | +40,000+25.0% | Added |
| Foster Victor Wealth Advisors, LLC | 196,388 | $15.2M | 1.22% | +8,519+4.5% | Added |
| Cortland Associates Inc | 190,914 | $15.1M | 1.82% | +790+0.4% | Added |
| Treasurer of the State of North Carolina | 190,028 | $15.1M | 0.06% | +11,530+6.5% | Added |
| Danske Bank A/S | 187,075 | $14.8M | 0.05% | −31,976−14.6% | Reduced |
| Clearstead Advisors, LLC | 184,244 | $14.6M | 0.23% | +6,757+3.8% | Added |
| ING Groep NV | 182,752 | $14.5M | 0.10% | +120,376+193.0% | Added |
| Badgley Phelps Wealth Managers, LLC | 178,936 | $14.2M | 0.34% | +1,444+0.8% | Added |
| 2Xideas AG | 175,629 | $13.9M | 2.11% | −70,941−28.8% | Reduced |
| LGT Group Foundation | 172,482 | $13.7M | 0.19% | +20,184+13.3% | Added |
| DnB Asset Management AS | 171,318 | $13.6M | 0.06% | +5,359+3.2% | Added |
| Petrus Trust Company, LTA | 170,000 | $13.5M | 1.26% | +170,000 | New |
| CIBC World Markets Corp | 168,563 | $13.4M | 0.11% | −24,449−12.7% | Reduced |
| Verition Fund Management LLC | 168,148 | $13.3M | 0.08% | +113,457+207.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 165,373 | $13.1M | 0.04% | −14,767−8.2% | Reduced |
| Teachers Retirement System of the State of Kentucky | 165,175 | $13.1M | 0.12% | +6,923+4.4% | Added |
| Toronto Dominion Bank | 162,893 | $12.9M | 0.03% | −72,504−30.8% | Reduced |
| CIBC Asset Management Inc | 157,156 | $12.5M | 0.04% | +25,482+19.4% | Added |
| Ulysses Management LLC | 156,905 | $12.4M | 3.14% | +156,905 | New |
| State of New Jersey Common Pension Fund D | 155,343 | $12.3M | 0.06% | +4,766+3.2% | Added |
| TownSquare Capital, LLC | 153,551 | $12.2M | 0.13% | −2,857−1.8% | Reduced |
| Driehaus Capital Management LLC | 147,993 | $11.7M | 0.11% | +147,993 | New |
| Nomura Asset Management Co Ltd | 146,942 | $11.6M | 0.04% | +12,024+8.9% | Added |
| Cetera Investment Advisers | 143,244 | $11.3M | 0.02% | +13,949+10.8% | Added |
| KLP Kapitalforvaltning AS | 143,000 | $11.3M | 0.06% | +1,200+0.8% | Added |
| Ion Asset Management Ltd. | 140,900 | $11.2M | 0.82% | −6,070−4.1% | Reduced |
| La Banque Postale Asset Management SA | 139,466 | $11.0M | 0.17% | −19,960−12.5% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 137,666 | $10.9M | 0.07% | +1,228+0.9% | Added |
| CI Private Wealth, LLC | 132,596 | $10.5M | 0.02% | −226,054−63.0% | Reduced |
| Truist Financial Corp | 131,855 | $10.4M | 0.02% | −9,205−6.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 130,608 | $10.4M | 0.04% | +20,912+19.1% | Added |
| Resona Asset Management Co.,Ltd. | 129,338 | $10.2M | 0.06% | +12,501+10.7% | Added |
| Fred Alger Management, LLC | 129,182 | $10.2M | 0.06% | +36,395+39.2% | Added |
| Public Employees Retirement System of Ohio | 129,004 | $10.2M | 0.04% | −11,486−8.2% | Reduced |
| AQR Capital Management LLC | 128,603 | $10.1M | 0.01% | +100,132+351.7% | Added |
| Waterfront Capital Partners, LLC | 125,000 | $9.90M | 1.70% | +125,000 | New |
| Kelly Lawrence W & Associates Inc | 124,640 | $9.88M | 2.40% | −4,900−3.8% | Reduced |
| State of Michigan Retirement System | 123,900 | $9.82M | 0.06% | +3,000+2.5% | Added |
| Corebridge Financial, Inc. | 122,624 | $9.72M | 0.06% | −1,555−1.3% | Reduced |
| Arizona State Retirement System | 121,429 | $9.62M | 0.06% | +2,433+2.0% | Added |
| Prana Capital Management, LP | 120,564 | $9.55M | 0.39% | +44,082+57.6% | Added |
| NFJ Investment Group, LLC | 120,248 | $9.53M | 0.32% | +120,248 | New |
| Envestnet Portfolio Solutions, Inc. | 118,419 | $9.38M | 0.04% | +74,300+168.4% | Added |