CIO

City Office REIT
CIO

Overview Fund Activity

127 hedge funds and large institutions have $133M invested in City Office REIT in 2025 Q2 according to their latest regulatory filings, with 11 funds opening new positions, 43 increasing their positions, 36 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
127
Holders Change
-9
Holders Change %
-6.62%
% of All Funds
1.7%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
11
Increased
43
Reduced
36
Closed
19
Calls
$194K
Puts
$492K
Net Calls
-$298K
Net Calls Change
-$140K

Top Buyers

1
SIMG
1
Sonora Investment Management Group
Arizona
$1.75M
2
UBS Group
2
UBS Group
Switzerland
$1.12M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$11.7M
4
AC
4
AlphaCore Capital
California
$689K
5
BlackRock
5
BlackRock
New York
$20.7M

Top Sellers

1
SBH
1
Segall Bryant & Hamill
Illinois
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$0
3
AQR Capital Management
3
AQR Capital Management
Connecticut
$492K
4
Man Group
4
Man Group
United Kingdom
$72.3K
5
Goldman Sachs
5
Goldman Sachs
New York
$1.77M
Name Holding Trade Value Shares
Change 		Shares
Change %
NM
1
Newtyn Management
New York
$21M – – –
BlackRock
2
BlackRock
New York
$20.7M +$579K +108,340 +3%
Vanguard Group
3
Vanguard Group
Pennsylvania
$11.7M +$733K +137,214 +7%
Nomura Holdings
4
Nomura Holdings
Japan
$9.4M -$924 -173 -0%
LSV Asset Management
5
LSV Asset Management
Illinois
$8.45M +$514K +96,329 +6%
Renaissance Technologies
6
Renaissance Technologies
New York
$6.31M -$393K -73,600 -6%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$5.01M -$128K -23,979 -2%
State Street
8
State Street
Massachusetts
$4.56M +$10.6K +1,979 +0.2%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$4.15M +$25.5K +4,784 +0.6%
Morgan Stanley
10
Morgan Stanley
New York
$3.84M +$478K +89,450 +14%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$2.9M -$91.8K -17,188 -3%
D.E. Shaw & Co
12
D.E. Shaw & Co
New York
$1.85M -$191K -35,860 -9%
Northern Trust
13
Northern Trust
Illinois
$1.83M -$44.6K -8,358 -2%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$1.83M – – –
Charles Schwab
15
Charles Schwab
California
$1.77M +$35K +6,562 +2%
Goldman Sachs
16
Goldman Sachs
New York
$1.77M -$420K -78,709 -19%
SIMG
17
Sonora Investment Management Group
Arizona
$1.75M +$1.08M +201,820 +160%
JPMorgan Chase & Co
18
JPMorgan Chase & Co
New York
$1.35M -$280K -52,521 -17%
ECM
19
Engine Capital Management
New York
$1.23M – – –
MAM
20
Martingale Asset Management
Massachusetts
$1.16M +$112K +20,901 +11%
PCM
21
Penserra Capital Management
California
$1.16M +$2.71K +508 +0.2%
UBS Group
22
UBS Group
Switzerland
$1.12M +$1.01M +188,357 +868%
GCP
23
GSA Capital Partners
United Kingdom
$1.11M +$458K +85,829 +70%
Victory Capital Management
24
Victory Capital Management
Texas
$977K +$26.7K +5,000 +3%
Macquarie Group
25
Macquarie Group
Australia
$732K – – –
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