City Office REIT
CIO
CIO was delisted on the 8th of January, 2026.
142 hedge funds and large institutions have $141M invested in City Office REIT in 2024 Q4 according to their latest regulatory filings, with 19 funds opening new positions, 52 increasing their positions, 31 reducing their positions, and 11 closing their positions.
73% more first-time investments, than exits
New positions opened: 19 | Existing positions closed: 11
68% more repeat investments, than reductions
Existing positions increased: 52 | Existing positions reduced: 31
6% more funds holding
Funds holding: 134 → 142 (+8)
1.27% less ownership
Funds ownership: 65.08% → 63.82% (-1.3%)
7% less capital invested
Capital invested by funds: $153M → $141M (-$11.4M)
38% less call options, than puts
Call options by funds: $401K | Put options by funds: $649K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$1.79M |
| 2 |
Millennium Management
New York
|
+$1.28M |
| 3 |
Jane Street
New York
|
+$859K |
| 4 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$733K |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
+$655K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
-$10.3M |
| 2 |
Group One Trading
Chicago,
Illinois
|
-$1.32M |
| 3 |
AQR Capital Management
Greenwich,
Connecticut
|
-$885K |
| 4 |
Simplex Trading
Chicago,
Illinois
|
-$432K |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
-$425K |
CIO Hedge Fund Activity: Q4 2024 in Review
142 of the 7,606 institutional investors tracked by Wall St. Rank reported a position in City Office REIT (CIO) for Q4 2024, worth a combined $141M — down 7.5% from $153M a quarter earlier.
Buyers outnumbered sellers: 19 funds opened new CIO positions and 11 closed out — a net gain of 8 holders — while 52 added to existing stakes and 31 trimmed.
The largest buyer was BlackRock, adding an estimated $1.79M. The largest seller was Vanguard Group, cutting an estimated $10.3M.
- 142 institutional investors held City Office REIT (CIO) as of Q4 2024, up from 134 in Q3 2024.
- Funds reported $141M of City Office REIT stock for Q4 2024, down 7.5% quarter-over-quarter.
- 19 funds opened new City Office REIT positions in Q4 2024 and 11 closed out, a net change of +8 holders.
- The largest City Office REIT buyer in Q4 2024 was BlackRock, an estimated $1.79M added.
- The largest City Office REIT seller in Q4 2024 was Vanguard Group, an estimated $10.3M sold.
Based on aggregated 13F filings for Q4 2024.