Blackstone Mortgage Trust
BXMT
336 hedge funds and large institutions have $2.05B invested in Blackstone Mortgage Trust in 2026 Q1 according to their latest regulatory filings, with 42 funds opening new positions, 125 increasing their positions, 95 reducing their positions, and 41 closing their positions.
32% more repeat investments, than reductions
Existing positions increased: 125 | Existing positions reduced: 95
2% more first-time investments, than exits
New positions opened: 42 | Existing positions closed: 41
1% more capital invested
Capital invested by funds: $2.02B → $2.05B (+$29.4M)
0.46% more ownership
Funds ownership: 62.78% → 63.25% (+0.46%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
1% less funds holding
Funds holding: 341 → 336 (-5)
65% less call options, than puts
Call options by funds: $22M | Put options by funds: $63M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GA
GRS Advisors
Chicago,
Illinois
|
+$38.3M |
| 2 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$16.6M |
| 3 |
Mirae Asset Global ETFs Holdings
Causeway Bay,
Hong Kong
|
+$14.2M |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$14.1M |
| 5 |
BFM
Boothbay Fund Management
New York
|
+$7.63M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$10.5M |
| 2 |
BAMCO Inc
New York
|
-$8.33M |
| 3 |
D.E. Shaw & Co
New York
|
-$5.34M |
| 4 |
California Public Employees Retirement System
Sacramento,
California
|
-$5.08M |
| 5 |
MIM
MetLife Investment Management
Whippany,
New Jersey
|
-$4.9M |
BXMT Hedge Fund Activity: Q1 2026 in Review
336 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Blackstone Mortgage Trust (BXMT) for Q1 2026, worth a combined $2.05B — up 1.5% from $2.02B a quarter earlier.
Buyers outnumbered sellers: 42 funds opened new BXMT positions and 41 closed out — a net gain of 1 holder — while 125 added to existing stakes and 95 trimmed.
The largest buyer was GRS Advisors, opening a new position worth an estimated $38.3M. The largest seller was Jane Street, exiting entirely with an estimated $10.5M sold.
- 336 institutional investors held Blackstone Mortgage Trust (BXMT) as of Q1 2026, down from 341 in Q4 2025.
- Funds reported $2.05B of Blackstone Mortgage Trust stock for Q1 2026, up 1.5% quarter-over-quarter.
- 42 funds opened new Blackstone Mortgage Trust positions in Q1 2026 and 41 closed out, a net change of +1 holder.
- The largest Blackstone Mortgage Trust buyer in Q1 2026 was GRS Advisors, an estimated $38.3M added.
- The largest Blackstone Mortgage Trust seller in Q1 2026 was Jane Street, an estimated $10.5M sold.
Based on aggregated 13F filings for Q1 2026.