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CoStar Group

791 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 307 increasing their positions, 276 reducing their positions, and 164 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: 125 | Existing positions closed: 164

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
791
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
AF
451
Avanza Fonder
Sweden
$475K
MSA
452
MUFG Securities Americas
New York
$473K
AAM
453
Azzad Asset Management
Virginia
$464K
MMA
454
Miracle Mile Advisors
California
$463K
PP
455
Postrock Partners
Oregon
$461K
SAM
456
Securian Asset Management
Minnesota
$461K
VWM
457
Venturi Wealth Management
Texas
$457K
QT
458
Quantbot Technologies
New York
$446K
KRSITF
459
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$443K
BC
460
Bridgefront Capital
Texas
$436K
IIM
461
INTECH Investment Management
Florida
$436K
Baird Financial Group
462
Baird Financial Group
Wisconsin
$433K
GC
463
Gilbert & Cook
Iowa
$431K
AFG
464
Atomi Financial Group
New York
$431K
WI
465
Wahed Invest
New York
$429K
UCFA
466
United Capital Financial Advisors
Texas
$426K
CM
467
Capula Management
Cayman Islands
$421K
AAP
468
Arax Advisory Partners
Colorado
$420K
JFG
469
Jefferies Financial Group
New York
$415K
AWP
470
Accretive Wealth Partners
New Jersey
$413K
PIA
471
Perennial Investment Advisors
California
$410K
PGFC
472
Peapack-Gladstone Financial Corp
New Jersey
$406K
1C
473
111 Capital
France
$404K
GBT
474
Grove Bank & Trust
Florida
$403K
CAM
475
Cresset Asset Management
Illinois
$402K