Blackstone Mortgage Trust, Inc.
US ˙ NYSE ˙ US09257W1009

SecurityBXMT / Blackstone Mortgage Trust, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership23,255 shares
Latest Disclosed Value $ 445,333
Citigroup Inc reports 48.00% decrease in ownership of BXMT / Blackstone Mortgage Trust, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 23,255 shares of Blackstone Mortgage Trust, Inc. (US:BXMT) valued at $445,333 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 44,724 shares of Blackstone Mortgage Trust, Inc.. This represents a change in shares of -48.00% during the quarter. The current value of the position is $418,823 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)
2026-05-11 2026-03-31 13F BLACKSTONE MORTGAGE TRUST IN COM CL A 09257W100 23,255 -21,469 -48.00 445 -47.95 0.0001
2026-02-13 2025-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 44,724 -34,002 -43.19 856 -40.99 0.0004
2025-11-10 2025-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 78,726 -71,289 -47.52 1,449 -49.81 0.0006
2025-08-11 2025-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 150,015 -95,854 -38.99 2,888 -41.29 0.0014
2025-05-12 2025-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 245,869 -4,953 -1.97 4,917 12.62 0.0025
2025-02-12 2024-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 250,822 36,066 16.79 4,367 6.96 0.0026
2024-11-12 2024-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 214,756 77,206 56.13 4,083 70.37 0.0024
2024-08-12 2024-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 137,550 -32,727 -19.22 2,396 -29.32 0.0015
2024-05-10 2024-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 170,277 66,069 63.40 3,390 52.98 0.0022
2024-02-09 2023-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 104,208 36,663 54.28 2,217 50.85 0.0016
2023-12-06 2023-09-30 13F/A-1 BLACKSTONE MTG TR COM CL A 09257W100 67,545 -5,934 -8.08 1,469 -3.92 0.0011
2023-11-09 2023-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 67,545 -5,934 1,469 0.0004
2023-08-10 2023-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 73,479 11,347 18.26 1,529 37.87 0.0010
2023-05-11 2023-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 62,132 39,559 175.25 1,109 132.49 0.0008
2023-02-09 2022-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 22,573 -84,862 -78.99 478 -80.97 0.0004
2022-11-10 2022-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 107,435 45,507 73.48 2,507 46.27 0.0018
2022-08-10 2022-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 61,928 -182,790 -74.69 1,714 -77.97 0.0013
2022-05-12 2022-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 244,718 -185,021 -43.05 7,779 -40.88 0.0047
2022-02-10 2021-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 429,739 70,394 19.59 13,158 20.76 0.0070
2021-11-10 2021-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 359,345 142,049 65.37 10,896 57.23 0.0064
2021-08-10 2021-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 217,296 152,016 232.87 6,930 242.39 0.0042
2021-05-13 2021-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 65,280 22,515 52.65 2,024 71.96 0.0013
2021-02-11 2020-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 42,765 20,868 95.30 1,177 144.70 0.0007
2020-11-12 2020-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 21,897 -1,316,829 -98.36 481 -98.51 0.0003
2020-08-12 2020-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 1,338,726 1,265,180 1,720.26 32,249 2,253.94 0.0252
2020-05-12 2020-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 73,546 18,118 32.69 1,370 -33.59 0.0012
2020-02-12 2019-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 55,428 -28,918 -34.28 2,063 -31.78 0.0015
2019-11-08 2019-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 84,346 761 0.91 3,024 1.72 0.0024
2019-08-12 2019-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 83,585 7,256 9.51 2,973 12.70 0.0024
2019-05-13 2019-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 76,329 2,763 3.76 2,638 12.54 0.0025
2019-02-12 2018-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 73,566 41,605 130.17 2,344 118.86 0.0024
2018-11-13 2018-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 31,961 18,100 130.58 1,071 145.64 0.0010
2018-08-10 2018-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 13,861 -135,615 -90.73 436 -90.72 0.0004
2018-05-11 2018-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 149,476 -18,730 -11.14 4,697 -13.21 0.0039
2018-02-12 2017-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 168,206 74,016 78.58 5,412 85.22 0.0043
2017-11-13 2017-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 94,190 80,812 604.07 2,922 590.78 0.0024
2017-08-11 2017-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 13,378 -500,038 -97.39 423 -97.34 0.0004
2017-05-12 2017-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 513,416 45,131 9.64 15,895 12.87 0.0142
2017-02-10 2016-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 468,285 38,988 9.08 14,082 11.39 0.0127
2016-11-10 2016-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 429,297 1,402 0.33 12,642 6.77 0.0118
2016-08-12 2016-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 427,895 -470 -0.11 11,840 2.90 0.0121
2016-05-13 2016-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 428,365 -428,278 -49.99 11,506 -49.81 0.0129
2016-02-12 2015-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 856,643 -273,000 -24.17 22,924 -26.04 0.0228
2015-11-13 2015-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 1,129,643 702,095 164.21 30,997 160.59 0.0290
2015-08-13 2015-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 427,548 235,766 122.93 11,895 118.62 0.0106
2015-05-14 2015-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 191,782 -262,924 -57.82 5,441 -58.94 0.0053
2015-02-17 2014-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 454,706 -271,938 -37.42 13,250 -32.71 0.0118
2014-11-14 2014-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 726,644 150,203 26.06 19,692 17.80 0.0172
2014-08-14 2014-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 576,441 410,565 247.51 16,717 250.53 0.0160
2014-05-15 2014-03-31 13F BLACKSTONE MTG TR COM CL A 09257W100 165,876 -306,833 -64.91 4,769 -62.81 0.0049
2014-02-14 2013-12-31 13F BLACKSTONE MTG TR COM CL A 09257W100 472,709 -19,539 -3.97 12,824 3.42 0.0116
2013-11-14 2013-09-30 13F BLACKSTONE MTG TR COM CL A 09257W100 492,248 90,190 22.43 12,400 24.86 0.0116
2013-08-14 2013-06-30 13F BLACKSTONE MTG TR COM CL A 09257W100 402,058 402,058 9,931 0.0098
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.