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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
PCP
401
Pacific Capital Partners
$698K
CPIG
402
Chicago Partners Investment Group
Illinois
$696K
PCM
403
Prelude Capital Management
New York
$694K
QCG
404
Quadrant Capital Group
Ohio
$680K
RWB
405
RMR Wealth Builders
New Jersey
$669K
DWM
406
Diversify Wealth Management
Utah
$668K
DTL
407
Dynamic Technology Lab
Singapore
$668K
OIMU
408
Osmosis Investment Management UK
United Kingdom
$661K
CFO
409
Callan Family Office
Pennsylvania
$659K
Northwestern Mutual Wealth Management
410
Northwestern Mutual Wealth Management
Wisconsin
$654K
SCM
411
Sterling Capital Management
North Carolina
$646K
RAM
412
Redmond Asset Management
Virginia
$642K
BEI
413
Benjamin Edwards Inc
Missouri
$641K
NW
414
NewEdge Wealth
Pennsylvania
$637K
FC
415
Farringdon Capital
United Kingdom
$633K
LC
416
Lincoln Capital
Nebraska
$633K
SCB
417
Saudi Central Bank
Saudi Arabia
$631K
VA
418
Vident Advisory
Georgia
$606K
PIMJS
419
PKO Investment Management Joint-Stock
Poland
$605K
EFM
420
E Fund Management
China
$602K
UB
421
UMB Bank
Missouri
$584K
NS
422
NBC Securities
Alabama
$584K
HI
423
Horizon Investments
North Carolina
$580K
Lido Advisors
424
Lido Advisors
California
$577K
MNBTD
425
Moody National Bank Trust Division
Texas
$576K