Orion Office REIT
ONL
198 hedge funds and large institutions have $86M invested in Orion Office REIT in 2025 Q3 according to their latest regulatory filings, with 23 funds opening new positions, 33 increasing their positions, 62 reducing their positions, and 34 closing their positions.
21% more capital invested
Capital invested by funds: $71.2M → $86M (+$14.8M)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
2.94% less ownership
Funds ownership: 59.51% → 56.58% (-2.9%)
6% less funds holding
Funds holding: 211 → 198 (-13)
32% less first-time investments, than exits
New positions opened: 23 | Existing positions closed: 34
47% less repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 62
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$744K |
| 2 |
Two Sigma Investments
New York
|
+$507K |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$473K |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$270K |
| 5 |
Two Sigma Advisers
New York
|
+$247K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Geode Capital Management
Boston,
Massachusetts
|
-$892K |
| 2 |
Mariner
Overland Park,
Kansas
|
-$610K |
| 3 |
HF
HRT Financial
New York
|
-$526K |
| 4 |
Millennium Management
New York
|
-$395K |
| 5 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$389K |
ONL Hedge Fund Activity: Q3 2025 in Review
198 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Orion Office REIT (ONL) for Q3 2025, worth a combined $86M — up 21% from $71.2M a quarter earlier.
Sellers outnumbered buyers: 34 funds closed out of ONL and 23 opened new positions — a net loss of 11 holders — while 62 trimmed existing stakes and 33 added.
The largest buyer was Susquehanna International Group, adding an estimated $744K. The largest seller was Geode Capital Management, cutting an estimated $892K.
- 198 institutional investors held Orion Office REIT (ONL) as of Q3 2025, down from 211 in Q2 2025.
- Funds reported $86M of Orion Office REIT stock for Q3 2025, up 21% quarter-over-quarter.
- 23 funds opened new Orion Office REIT positions in Q3 2025 and 34 closed out, a net change of -11 holders.
- The largest Orion Office REIT buyer in Q3 2025 was Susquehanna International Group, an estimated $744K added.
- The largest Orion Office REIT seller in Q3 2025 was Geode Capital Management, an estimated $892K sold.
Based on aggregated 13F filings for Q3 2025.