Blackstone Mortgage Trust, Inc.
US ˙ NYSE ˙ US09257W1009

SecurityBXMT / Blackstone Mortgage Trust, Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership19,929 shares
Latest Disclosed Value $ 381,636
Mercer Global Advisors Inc /adv reports 1.93% increase in ownership of BXMT / Blackstone Mortgage Trust, Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 19,929 shares of Blackstone Mortgage Trust, Inc. (US:BXMT) valued at $381,640 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,551 shares of Blackstone Mortgage Trust, Inc.. This represents a change in shares of 1.93% during the quarter. The current value of the position is $365,697 USD.

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 19,929 378 1.93 382 1.87 0.0006
2026-02-17 2025-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 19,551 -6,253 -24.23 374 -21.26 0.0006
2025-11-14 2025-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 25,804 -23,919 -48.10 475 -50.37 0.0008
2025-08-14 2025-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 49,723 -111,786 -69.21 957 -70.37 0.0019
2025-05-15 2025-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 161,509 3,810 2.42 3,230 17.67 0.0074
2025-02-14 2024-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 157,699 -9,770 -5.83 2,746 -10.91 0.0067
2024-11-14 2024-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 167,469 11,760 7.55 3,081 13.61 0.0072
2024-08-12 2024-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 155,709 -2,685 -1.70 2,712 90,300.00 0.0074
2024-05-15 2024-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 158,394 25,709 19.38 3 50.00 0.0090
2024-02-15 2023-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 132,685 3,248 2.51 3 0.00 0.0085
2023-11-15 2023-09-30 13F/A-1 BLACKSTONE MTG TR COM CL A 09257W100 129,437 5,311 4.28 3 0.00 0.0107
2023-11-14 2023-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 129,437 5,311 3 0.0107
2023-08-14 2023-06-30 13F BLACKROCK CAPITAL ALLOCATION TRUST CLOSED-END FUND 09257W100 124,126 124,126 3 0.0103
2022-11-15 2022-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 0 -8,806 -100.00 0 -100.00
2022-08-10 2022-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 8,806 1,555 21.45 244 5.63 0.0015
2022-05-10 2022-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 7,251 7,251 231 0.0014
2020-05-16 2020-03-31 13F BLACKSTONE MTG TR INC COM CL A COM 09257W100 0 -8,597 -100.00 0 -100.00
2020-02-13 2019-12-31 13F BLACKSTONE MTG TR INC COM CL A COM 09257W100 8,597 1,782 26.15 320 31.15 0.0064
2019-11-12 2019-09-30 13F BLACKSTONE MTG TR INC COM CL A COM 09257W100 6,815 -61 -0.89 244 -0.41 0.0057
2019-08-14 2019-06-30 13F BLACKSTONE MTG TR INC COM CL A COM 09257W100 6,876 -39 -0.56 245 2.51 0.0065
2019-04-23 2019-03-31 13F/A-1 BLACKSTONE MTG TR INC COM CL A COM 09257W100 6,915 6,915 239 0.0086
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.