City Office REIT
CIO
CIO was delisted on the 8th of January, 2026.
152 hedge funds and large institutions have $217M invested in City Office REIT in 2025 Q4 according to their latest regulatory filings, with 27 funds opening new positions, 39 increasing their positions, 53 reducing their positions, and 19 closing their positions.
310% more call options, than puts
Call options by funds: $41K | Put options by funds: $10K
42% more first-time investments, than exits
New positions opened: 27 | Existing positions closed: 19
3% more funds holding
Funds holding: 147 → 152 (+5)
3.07% more ownership
Funds ownership: 74.03% → 77.1% (+3.1%)
5% more capital invested
Capital invested by funds: $208M → $217M (+$9.51M)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
26% less repeat investments, than reductions
Existing positions increased: 39 | Existing positions reduced: 53
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TC
Trium Capital
London,
United Kingdom
|
+$14M |
| 2 |
GLAM
Gardner Lewis Asset Management
Chadds Ford,
Pennsylvania
|
+$5.29M |
| 3 |
GF
Gabelli Funds
Rye,
New York
|
+$4.49M |
| 4 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
+$3.57M |
| 5 |
GCL
Glazer Capital LLC
New York
|
+$3.48M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
NM
Newtyn Management
New York
|
-$7.88M |
| 2 |
CM
Capula Management
Grand Cayman,
Cayman Islands
|
-$7.05M |
| 3 |
NAM
Nexpoint Asset Management
Dallas,
Texas
|
-$5.32M |
| 4 |
Renaissance Technologies
New York
|
-$3.34M |
| 5 |
Morgan Stanley
New York
|
-$2.8M |
CIO Hedge Fund Activity: Q4 2025 in Review
152 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in City Office REIT (CIO) for Q4 2025, worth a combined $217M — up 4.6% from $208M a quarter earlier.
Buyers outnumbered sellers: 27 funds opened new CIO positions and 19 closed out — a net gain of 8 holders — while 39 added to existing stakes and 53 trimmed.
The largest buyer was Trium Capital, opening a new position worth an estimated $14M. The largest seller was Newtyn Management, cutting an estimated $7.88M.
- 152 institutional investors held City Office REIT (CIO) as of Q4 2025, up from 147 in Q3 2025.
- Funds reported $217M of City Office REIT stock for Q4 2025, up 4.6% quarter-over-quarter.
- 27 funds opened new City Office REIT positions in Q4 2025 and 19 closed out, a net change of +8 holders.
- The largest City Office REIT buyer in Q4 2025 was Trium Capital, an estimated $14M added.
- The largest City Office REIT seller in Q4 2025 was Newtyn Management, an estimated $7.88M sold.
Based on aggregated 13F filings for Q4 2025.