Blackstone Mortgage Trust, Inc.
US ˙ NYSE ˙ US09257W1009

SecurityBXMT / Blackstone Mortgage Trust, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership98,553 shares
Latest Disclosed Value $ 1,887,394
Advisor Group Holdings, Inc. reports 4.46% decrease in ownership of BXMT / Blackstone Mortgage Trust, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 98,553 shares of Blackstone Mortgage Trust, Inc. (US:BXMT) valued at $1,887,290 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 103,153 shares of Blackstone Mortgage Trust, Inc.. This represents a change in shares of -4.46% during the quarter. The current value of the position is $1,774,940 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 98,553 -4,600 -4.46 1,887 -4.36 0.0016
2026-02-17 2025-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 103,153 -6,216 -5.68 1,973 -7.07 0.0029
2025-11-14 2025-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 109,369 1,868 1.74 2,124 2.61 0.0030
2025-09-04 2025-06-30 13F/A-1 BLACKSTONE MTG TR COM CL A 09257W100 107,501 -5,858 -5.17 2,070 -8.73 0.0037
2025-08-13 2025-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 92,197 -21,162 1,629 0.0019
2025-05-12 2025-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 113,359 -15,184 -11.81 2,267 1.30 0.0051
2025-06-06 2024-12-31 13F/A-1 BLACKSTONE MTG TR COM CL A 09257W100 128,543 -22,019 -14.62 2,238 -21.80 0.0050
2025-02-07 2024-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 125,185 -25,377 2,301 0.0059
2024-11-13 2024-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 150,562 -57,845 -27.76 2,862 -21.85 0.0065
2024-08-13 2024-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 208,407 -29,335 -12.34 3,662 -23.08 0.0087
2024-05-10 2024-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 237,742 31,248 15.13 4,762 8.23 0.0106
2024-02-12 2023-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 206,494 -21,045 -9.25 4,399 -11.24 0.0077
2023-11-13 2023-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 227,539 9,480 4.35 4,956 8.35 0.0073
2023-08-21 2023-06-30 13F/A-1 BLACKSTONE MTG TR COM CL A 09257W100 218,059 -13,753 -5.93 4,574 10.72 0.0082
2023-08-10 2023-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 218,059 -13,753 4,574 0.0012
2023-05-12 2023-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 231,812 28,715 14.14 4,132 -3.97 0.0078
2023-02-10 2022-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 203,097 -113,438 -35.84 4,302 -41.77 0.0087
2022-11-14 2022-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 316,535 3,807 1.22 7,388 -14.93 0.0169
2022-08-10 2022-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 312,728 4,627 1.50 8,685 11.25 0.0192
2022-05-04 2022-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 308,101 26,380 9.36 7,807 -9.83 0.0151
2022-02-03 2021-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 281,721 36,414 14.84 8,658 15.73 0.0164
2021-11-05 2021-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 245,307 -10,522 -4.11 7,481 -8.29 0.0156
2021-08-02 2021-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 255,829 38,118 17.51 8,157 20.84 0.0177
2021-05-13 2021-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 217,711 26,302 13.74 6,750 28.08 0.0162
2021-02-10 2020-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 191,409 -15 -0.01 5,270 25.27 0.0141
2020-11-12 2020-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 191,424 29,613 18.30 4,207 7.95 0.0126
2020-08-14 2020-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 161,811 -33,890 -17.32 3,897 18.13 0.0131
2020-05-18 2020-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 195,701 195,701 3,299 0.0135
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.