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Disclosery

CSGP COSTAR GROUP INC

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Stock (common), issuer CIK 1057352

767 managers (797 13F filers) reported a position in CSGP shares at 2026-03-31, 415,945,582 shares in all. 115 filers opened a position and 166 filers sold out during the quarter.

Managers
767
13F filers
797
New
115
Added
309
Reduced
276
Sold out
166
Shares held by filers
415,945,582

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…732$29.5K<0.01%-1,34413F-HRTimeline
2UniFi Bank671$27.1K0.01%-5813F-HRTimeline
Wilmington Savings Fund Society, FSB640$25.8K<0.01%013F-HRTimeline
HFM Investment Advisors, LLC637$25.7K0.01%-713F-HRTimeline
VEGA INVESTMENT SOLUTIONS629$25.4K0.01%013F-HRTimeline
Timothy G. Youngquist 2020 Irrevocable …625$25.2K0.01%new13F-HRTimeline
GW&K Investment Management, LLC626$25K<0.01%+3313F-HRTimeline
Twin Lakes Capital Management, LLC619$25K0.01%-1613F-HRTimeline
Heritage Wealth Advisors593$23.9K<0.01%+51713F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors544$22.2K<0.01%-3913F-HRTimelineGroup
Park Place Capital Corp545$22K<0.01%013F-HRTimeline
TrinityBridge Ltd520$21K<0.01%013F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management503$20.3K<0.01%-7,28413F-HRTimelineGroup
NewEdge Advisors, LLC502$20.3K<0.01%-2113F-HR/ATimeline
WealthCollab, LLC500$20.2K0.01%new13F-HRTimeline
Rossby Financial, LCC503$19.9K<0.01%+4513F-HRTimeline
Annis Gardner Whiting Capital Advisors,…487$19.6K<0.01%-2113F-HRTimeline
TD Waterhouse Canada Inc.495$19.6K<0.01%+38113F-HRTimeline
HARBOUR INVESTMENTS, INC.457$18.4K<0.01%+35813F-HRTimeline
PRIVATE TRUST CO NA451$18.2K<0.01%+17113F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…426$17.2K<0.01%+14613F-HRTimelineGroup
Salomon & Ludwin, LLC419$16.7K<0.01%+37113F-HRTimeline
Hilltop National Bank380$15.3K<0.01%new13F-HRTimeline
Westside Investment Management, Inc.360$14.4K<0.01%013F-HRTimeline
Owl Creek Wealth Partners LLC345$13.9K<0.01%13F-HRTimeline
Golden State Wealth Management, LLC335$13.5K<0.01%-3,83813F-HRTimeline
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …326$13.2K<0.01%new13F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.310$12.5K<0.01%-82813F-HRTimeline
Prosperity Bancshares Inc309$12.5K0.01%+24513F-HRTimeline
BOKF, NAin group BOKF, NA302$12.2K<0.01%-3,13313F-HRTimelineGroup
MONTAG A & ASSOCIATES INC300$12.1K<0.01%013F-HRTimeline
Raiffeisen Bank International AGin group Raiffeisen Bank International…295$12.1K<0.01%-7,25513F-HRTimelineGroup
Avalon Trust Co297$12K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.290$11.7K<0.01%-213F-HRTimeline
Catalyst Capital Advisors LLC279$11.3K<0.01%+5113F-HRTimeline
Johnson Financial Group, Inc.in group Johnson Financial Group, Inc.264$10.7K<0.01%-45613F-HRTimelineGroup
McIlrath & Eck, LLC258$10.4K<0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC257$10.4K<0.01%+3413F-HRTimeline
Blue Trust, Inc.248$10K<0.01%+13313F-HRTimeline
CHILTON CAPITAL MANAGEMENT LLC245$9.88K<0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC244$9.84K<0.01%-17513F-HRTimelineGroup
SouthState Bank Corpin group SouthState Bank Corp234$9.44K<0.01%+1713F-HRTimelineGroup
Root Financial Partners, LLC231$9.32K<0.01%-4113F-HRTimeline
JNBA Financial Advisors222$8.96K<0.01%new13F-HRTimeline
WPG Advisers, LLC221$8.91K0.01%-15913F-HRTimeline
Cornerstone Planning Group LLC251$8.76K<0.01%+4013F-HRTimeline
Birchwood Financial Partners, Inc.217$8.75K0.01%-313F-HRTimeline
Capital Advisors, Ltd. LLC209$8K<0.01%new13F-HRTimeline
STANCE CAPITAL LLC198$7.98K<0.01%new13F-HRTimeline
First Command Advisory Services, Inc.187$7.54K<0.01%new13F-HRTimeline
Westfuller Advisors, LLC186$7.5K<0.01%+12013F-HRTimeline
Wall Street Financial Group, Inc.179$7.22K<0.01%new13F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC176$7.1K<0.01%013F-HRTimelineGroup
Clearstead Trust, LLC174$7.02K<0.01%new13F-HRTimeline
Covestor Ltd167$7K<0.01%-9513F-HRTimeline
Kemnay Advisory Services Inc.167$6.74K<0.01%+9013F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC164$6.62K<0.01%+14313F-HRTimeline
SWISS RE LTDin group SWISS RE LTD162$6.54K0.04%013F-HRTimelineGroup
CVA Family Office, LLC161$6.5K<0.01%-28913F-HRTimeline
Private Wealth Asset Management, LLC159$6.41K<0.01%-213F-HRTimeline
Quaker Wealth Management, LLC149$6.01K<0.01%-313F-HRTimeline
Meramec Financial Planners, LLC146$5.85K<0.01%013F-HRTimeline
USA FINANCIAL FORMULAS143$5.77K<0.01%013F-HRTimeline
RATIONAL ADVISORS, INC.139$5.61K<0.01%013F-HRTimeline
Elequin Capital, LP137$5.53K<0.01%new13F-HRTimeline
Asset Dedication, LLC131$5.29K<0.01%013F-HRTimeline
BAYBAN120$4.84K<0.01%new13F-HRTimeline
Richardson Capital Management LLC119$4.8K<0.01%new13F-HRTimeline
MV CAPITAL MANAGEMENT, INC.114$4.6K<0.01%+7213F-HRTimeline
Arlington Trust Co LLCin group Arlington Trust Co LLC110$4.44K<0.01%013F-HRTimelineGroup
Financial Network Wealth Advisors LLC110$4.44K<0.01%-32013F-HRTimeline
JPL Wealth Management, LLC104$4.2K<0.01%new13F-HR/ATimeline
Aventura Private Wealth, LLC102$4.12K<0.01%-2013F-HRTimeline
FIRST UNITED BANK & TRUST100$4.03K<0.01%013F-HRTimeline
Orion Capital Management LLC100$4.03K<0.01%013F-HRTimeline
Smithfield Trust Co90$4K<0.01%013F-HRTimeline
Red Tortoise LLC98$3.95K<0.01%+4813F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC94$3.79K<0.01%new13F-HRTimeline
Principia Wealth Advisory, LLC94$3.79K<0.01%+3013F-HRTimeline
Kilter Group LLC94$3.79K<0.01%+6013F-HRTimeline
Essential Partners LLC94$3.79K<0.01%-32013F-HRTimeline
MTM Investment Management, LLC93$3.75K<0.01%013F-HRTimeline
Cromwell Holdings LLC84$3.39K<0.01%-87113F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC82$3.31K<0.01%+113F-HRTimeline
Quent Capital, LLC82$3.31K<0.01%-5613F-HRTimeline
Clayton Financial Group LLC77$3.11K<0.01%013F-HRTimeline
Dogwood Wealth Management LLC77$3.11K<0.01%-3213F-HRTimeline
Farmers & Merchants Trust Co of Chamber…64$3K<0.01%013F-HR/ATimeline
TD Capital Management LLC73$2.94K<0.01%new13F-HRTimeline
Bell Investment Advisors, Inc69$2.78K<0.01%-1213F-HRTimeline
Intentional Wealth Strategies, LLC66$2.66K<0.01%13F-HRTimeline
Pinnacle Bancorp, Inc.65$2.62K<0.01%new13F-HRTimeline
Whipplewood Advisors, LLC65$2.62K<0.01%new13F-HRTimeline
Manchester Capital Management LLC64$2.58K<0.01%+2813F-HRTimeline
DT Investment Partners, LLC62$2.5K<0.01%013F-HRTimeline
Bruce G. Allen Investments, LLC60$2.42K<0.01%+3813F-HRTimeline
Cornerstone Financial Management LLC59$2.38K<0.01%+613F-HR/ATimeline
FIRST HORIZON CORP58$2.34K<0.01%013F-HRTimeline
Sachetta, LLC52$2.1K<0.01%+1313F-HRTimeline
GILL CAPITAL PARTNERS, LLC50$2.02K<0.01%new13F-HRTimeline
HM PAYSON & CO50$2.02K<0.01%-4213F-HRTimeline
Signature Resources Capital Management,…50$2.02K<0.01%new13F-HRTimeline
Valued Wealth Advisors LLC50$2.02K<0.01%013F-HRTimeline
Activest Wealth Management49$1.98K<0.01%+213F-HRTimeline
COUNTRY TRUST BANK41$1.65K<0.01%013F-HRTimeline
Crewe Advisors LLC40$1.61K<0.01%+1613F-HRTimeline
Graney & King, LLC35$1.41K<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…35$1.41K<0.01%-6613F-HRTimeline
Bogart Wealth, LLC32$1.29K<0.01%-14413F-HRTimeline
CoreCap Advisors, LLC31$1.25K<0.01%+2613F-HRTimeline
JFS WEALTH ADVISORS, LLC30$1.21K<0.01%-8813F-HRTimeline
N.E.W. Advisory Services LLC30$1.21K<0.01%013F-HRTimeline
Purpose Unlimited Inc.in group Purpose Unlimited Inc.30$1.21K<0.01%-10213F-HRTimelineGroup
Signature Equity Partners, LLC29$1.17K<0.01%013F-HRTimeline
NVWM, LLC27$1.09K<0.01%+513F-HRTimeline
Clark Wealth Partners27$1.09K<0.01%+2413F-HRTimeline
Dunhill Financial, LLC25$1.01K<0.01%-313F-HRTimeline
NBT BANK, N.A.in group NBT BANK, N.A.25$1.01K<0.01%new13F-HRTimelineGroup
AdvisorNet Financial, Inc25$1.01K<0.01%+1513F-HRTimeline
THURSTON, SPRINGER, MILLER, HERD & TITA…25$1.01K<0.01%013F-HRTimeline
CKW FINANCIAL GROUP20$1K<0.01%013F-HRTimeline
PayPay Securities Corp23$9210.03%-113F-HRTimeline
Washington Trust Advisors, Inc.22$887<0.01%-5013F-HRTimeline
Fortitude Family Office, LLC22$887<0.01%-2513F-HRTimeline
Financial Management Professionals, Inc.21$847<0.01%+1513F-HRTimeline
PROATHLETE WEALTH MANAGEMENT LLC21$847<0.01%013F-HRTimeline
SALEM INVESTMENT COUNSELORS INC20$807<0.01%new13F-HR/ATimeline
Destiny Wealth Partners, LLC20$807<0.01%new13F-HRTimeline
Cassaday & Co Wealth Management LLC20$807<0.01%new13F-HRTimeline
1620 INVESTMENT ADVISORS, INC.18$726<0.01%013F-HRTimeline
SJS Investment Consulting Inc.17$686<0.01%-9513F-HRTimeline
Aspect Partners, LLC17$686<0.01%013F-HRTimeline
Portus Wealth Advisors, LLC15$605<0.01%new13F-HRTimeline
Rachor Investment Advisory Services, LLC12$485<0.01%-1713F-HRTimeline
Caitlin John, LLC12$484<0.01%new13F-HRTimeline
HIGHLINE WEALTH PARTNERS LLC12$484<0.01%-1413F-HRTimeline
Hughes Financial Services, LLC12$484<0.01%+813F-HRTimeline
Marquette Asset Management, LLC11$444<0.01%-5913F-HRTimeline
DiNuzzo Private Wealth, Inc.10$404<0.01%-1813F-HRTimeline
Global Trust Asset Management, LLC10$403<0.01%013F-HRTimeline
Key Financial Inc10$403<0.01%013F-HRTimeline
American Capital Advisory, LLC7$283<0.01%-613F-HRTimeline
Vermillion Wealth Management, Inc.7$282<0.01%new13F-HRTimeline
BROWN, LISLE/CUMMINGS, INC.6$242<0.01%013F-HRTimeline
SHP Wealth Management6$242<0.01%-1213F-HRTimeline
TRUST CO OF TOLEDO NA /OH/5$202<0.01%new13F-HRTimeline
United Community Bankin group United Community Bank5$202<0.01%013F-HRTimelineGroup
TopTier Wealth Management, LLC5$202<0.01%new13F-HRTimeline
Bay Harbor Wealth Management, LLC5$201<0.01%-2413F-HRTimeline
Sound Income Strategies, LLC5$198<0.01%013F-HRTimeline
DecisionPoint Financial, LLC4$162<0.01%013F-HRTimeline
CDKV HOLDINGS LLC4$162<0.01%013F-HRTimeline
Sunbelt Securities, Inc.4$161<0.01%-113F-HRTimeline
VISION FINANCIAL MARKETS LLC3$122<0.01%013F-HRTimeline
Lloyd Advisory Services, LLC.3$121<0.01%-42413F-HRTimeline
Kingdom Financial Group LLC.3$121<0.01%013F-HRTimeline
1015 Capital Partners, LLC3$121<0.01%-513F-HRTimeline
TFC Financial Management, Inc.2$81<0.01%-513F-HRTimeline
MidFirst Bank2$81<0.01%new13F-HRTimeline
3 FACTOR INDEXING, LLC2$81<0.01%13F-HRTimeline
Rialto Wealth Management, LLC1$41<0.01%-313F-HRTimeline
EASTERN BANK1$40<0.01%013F-HRTimeline
HOLLENCREST CAPITAL MANAGEMENT1$40<0.01%013F-HRTimeline
Scarborough Advisors, LLC1$40<0.01%013F-HRTimeline
CURIO WEALTH, LLC1$40<0.01%new13F-HRTimeline
AMERIFLEX GROUP, INC.1$40<0.01%013F-HRTimeline
Avion Wealth21$00%-1713F-HRTimelineValue filed as zero, left out of ratios.