CIO

City Office REIT
CIO

Overview Fund Activity

126 hedge funds and large institutions have $132M invested in City Office REIT in 2025 Q2 according to their latest regulatory filings, with 11 funds opening new positions, 43 increasing their positions, 35 reducing their positions, and 18 closing their positions.

Holders
126
Holders Change
-10
Holders Change %
-7.35%
% of All Funds
1.69%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
11
Increased
43
Reduced
35
Closed
18
Calls
$59K
Puts
$339K
Net Calls
-$280K
Net Calls Change
-$122K

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 Market Value Shares Shares
Change 		Shares
Change %
NM
1
Newtyn Management
New York
$21M 3,938,000 – –
BlackRock
2
BlackRock
New York
$20.7M 3,878,594 +108,340 +3%
Vanguard Group
3
Vanguard Group
Pennsylvania
$11.7M 2,196,717 +137,214 +7%
Nomura Holdings
4
Nomura Holdings
Japan
$9.4M 1,760,310 -173 -0%
LSV Asset Management
5
LSV Asset Management
Illinois
$8.45M 1,582,009 +96,329 +6%
Renaissance Technologies
6
Renaissance Technologies
New York
$6.31M 1,182,415 -73,600 -6%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$5.01M 938,741 -23,979 -2%
State Street
8
State Street
Massachusetts
$4.56M 854,537 +1,979 +0.2%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$4.15M 777,348 +4,784 +0.6%
Morgan Stanley
10
Morgan Stanley
New York
$3.84M 719,488 +89,450 +14%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$2.9M 543,291 -17,188 -3%
D.E. Shaw & Co
12
D.E. Shaw & Co
New York
$1.85M 347,007 -35,860 -9%
Northern Trust
13
Northern Trust
Illinois
$1.83M 343,393 -8,358 -2%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$1.83M 343,189 – –
Charles Schwab
15
Charles Schwab
California
$1.77M 332,227 +6,562 +2%
Goldman Sachs
16
Goldman Sachs
New York
$1.77M 331,276 -78,709 -19%
SIMG
17
Sonora Investment Management Group
Arizona
$1.75M 328,120 +201,820 +160%
JPMorgan Chase & Co
18
JPMorgan Chase & Co
New York
$1.35M 253,547 -52,521 -17%
ECM
19
Engine Capital Management
New York
$1.23M 231,020 – –
MAM
20
Martingale Asset Management
Massachusetts
$1.16M 217,983 +20,901 +11%
PCM
21
Penserra Capital Management
California
$1.16M 216,385 +508 +0.2%
UBS Group
22
UBS Group
Switzerland
$1.12M 210,057 +188,357 +868%
GCP
23
GSA Capital Partners
United Kingdom
$1.11M 208,231 +85,829 +70%
Victory Capital Management
24
Victory Capital Management
Texas
$977K 183,000 +5,000 +3%
Macquarie Group
25
Macquarie Group
Australia
$732K 137,000 – –
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