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CoStar Group

786 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 126 funds opening new positions, 306 increasing their positions, 272 reducing their positions, and 166 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

24% less first-time investments, than exits

New positions opened: 126 | Existing positions closed: 166

41% less capital invested

Capital invested by funds: $27.8B → $16.4B (-$11.3B)

59% less funds holding in top 10

Funds holding in top 10: 177 (-10)

Holders
786
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$142M
Puts
$39.3M
Net Calls
Net Calls Change

Top Sellers

1 -$302M
2 -$233M
3 -$216M
4
TP
Third Point
New York
-$213M
5
BAMCO Inc
BAMCO Inc
New York
-$166M
Name Holding Trade Value Shares
Change
Change in
Stake
MSRPS
376
Maryland State Retirement & Pension System
Maryland
$856K
PAS
377
Park Avenue Securities
New York
$854K
IFWM
378
Institute for Wealth Management
Colorado
$853K
Wealthfront Advisers
379
Wealthfront Advisers
California
$845K
DZ Bank
380
DZ Bank
Germany
$831K
OSAM
381
O'Shaughnessy Asset Management
Connecticut
$829K
CB
382
Commerce Bank
Missouri
$825K
PA
383
Parallel Advisors
California
$821K
M&T Bank
384
M&T Bank
New York
$814K
AWM
385
AE Wealth Management
Kansas
$800K
EC
386
EntryPoint Capital
New York
$798K
TMAM
387
Tokio Marine Asset Management
Japan
$798K
MCM
388
Mattern Capital Management
Colorado
$797K
NMERB
389
New Mexico Educational Retirement Board
New Mexico
$791K
BFM
390
Boothbay Fund Management
New York
$786K
CII
391
Capital International Inc
California
$779K
AIP
392
Ameritas Investment Partners
Nebraska
$768K
ECM
393
Everence Capital Management
Indiana
$756K
PCMU
394
Paragon Capital Management (Utah)
Utah
$741K
FFA
395
First Foundation Advisors
California
$738K
GC
396
Guidance Capital
Kentucky
$733K
QWP
397
Quotient Wealth Partners
Texas
$731K
Allspring Global Investments
398
Allspring Global Investments
North Carolina
$725K
Bessemer Group
399
Bessemer Group
New Jersey
$712K
MSE
400
MUFG Securities EMEA
United Kingdom
$701K