Blackstone Mortgage Trust, Inc.
MX ˙ BMV ˙ US09257W1009
SecurityMX:BXMT / Blackstone Mortgage Trust, Inc.
InstitutionGEM Realty Capital
Latest Disclosed Ownership1,985,984 shares
Latest Disclosed Value $ 38,031,594
GEM Realty Capital ownership in BXMT / Blackstone Mortgage Trust, Inc.

On May 15, 2026 - GEM Realty Capital filed a 13F-HR form disclosing ownership of 1,985,984 shares of Blackstone Mortgage Trust, Inc. (MX:BXMT) valued at $38,031,594 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 15, 2020 disclosing 0 shares of Blackstone Mortgage Trust, Inc..

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BLACKSTONE MORTGAGE TRUST IN COM CL A 09257W100 1,985,984 1,985,984 38,032 3.7592
2020-05-15 2020-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 0 -112,482 -100.00 0 -100.00
2020-02-14 2019-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 112,482 -104,089 -48.06 4,187 -46.07 2.4160
2019-11-14 2019-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 216,571 -155,000 -41.71 7,764 -41.27 4.3662
2019-08-14 2019-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 371,571 -500 -0.13 13,220 2.81 7.8198
2019-05-15 2019-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 372,071 100,574 37.04 12,859 48.66 7.5443
2019-02-14 2018-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 271,497 -42,600 -13.56 8,650 -17.81 5.5080
2018-11-14 2018-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 314,097 -8,984 -2.78 10,525 3.65 6.3973
2018-08-14 2018-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 323,081 0 0.00 10,154 0.03 6.0848
2018-05-15 2018-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 323,081 -28,639 -8.14 10,151 -10.31 6.3516
2018-02-14 2017-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 351,720 98,020 38.64 11,318 43.81 6.5433
2017-11-14 2017-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 253,700 253,700 7,870 3.7475
2016-11-14 2016-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 0 -173,226 -100.00 0 -100.00
2016-08-15 2016-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 173,226 -233,968 -57.46 4,793 -56.18 1.3382
2016-05-16 2016-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 407,194 -189,600 -31.77 10,937 -31.52 2.6759
2016-02-16 2015-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 596,794 160,332 36.73 15,970 33.34 2.2535
2015-11-16 2015-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 436,462 436,462 11,977 1.4157
2014-08-14 2014-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 0 -879,400 -100.00 0 -100.00
2014-05-15 2014-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 879,400 48,500 5.84 25,283 12.16 1.7457
2014-02-14 2013-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 830,900 6,000 0.73 22,542 8.48 1.3057
2013-11-14 2013-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 824,900 310,300 60.30 20,779 63.47 0.9439
2013-08-14 2013-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 514,600 514,600 12,711 0.4855
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.