City Office REIT
CIO
CIO was delisted on the 8th of January, 2026.
127 hedge funds and large institutions have $133M invested in City Office REIT in 2025 Q2 according to their latest regulatory filings, with 10 funds opening new positions, 44 increasing their positions, 36 reducing their positions, and 19 closing their positions.
22% more repeat investments, than reductions
Existing positions increased: 44 | Existing positions reduced: 36
2% more capital invested
Capital invested by funds: $130M → $133M (+$2.59M)
0.55% less ownership
Funds ownership: 62.16% → 61.6% (-0.55%)
7% less funds holding
Funds holding: 137 → 127 (-10)
47% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 19
61% less call options, than puts
Call options by funds: $194K | Put options by funds: $492K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SIMG
Sonora Investment Management Group
Tucson,
Arizona
|
+$1.01M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$944K |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$688K |
| 4 |
AC
AlphaCore Capital
La Jolla,
California
|
+$646K |
| 5 |
BlackRock
New York
|
+$543K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SBH
Segall Bryant & Hamill
Chicago,
Illinois
|
-$1.47M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$714K |
| 3 |
AQR Capital Management
Greenwich,
Connecticut
|
-$427K |
| 4 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
-$418K |
| 5 |
Man Group
London,
United Kingdom
|
-$411K |
CIO Hedge Fund Activity: Q2 2025 in Review
127 of the 7,612 institutional investors tracked by Wall St. Rank reported a position in City Office REIT (CIO) for Q2 2025, worth a combined $133M — up 2% from $130M a quarter earlier.
Sellers outnumbered buyers: 19 funds closed out of CIO and 10 opened new positions — a net loss of 9 holders — while 36 trimmed existing stakes and 44 added.
The largest buyer was Sonora Investment Management Group, adding an estimated $1.01M. The largest seller was Segall Bryant & Hamill, exiting entirely with an estimated $1.47M sold.
- 127 institutional investors held City Office REIT (CIO) as of Q2 2025, down from 137 in Q1 2025.
- Funds reported $133M of City Office REIT stock for Q2 2025, up 2% quarter-over-quarter.
- 10 funds opened new City Office REIT positions in Q2 2025 and 19 closed out, a net change of -9 holders.
- The largest City Office REIT buyer in Q2 2025 was Sonora Investment Management Group, an estimated $1.01M added.
- The largest City Office REIT seller in Q2 2025 was Segall Bryant & Hamill, an estimated $1.47M sold.
Based on aggregated 13F filings for Q2 2025.