Blackstone Inc.
US ˙ NYSE ˙ US09260D1072

SecurityBX / Blackstone Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership32,044 shares
Latest Disclosed Value $ 3,684,748
Summit Trail Advisors, Llc reports 7.20% decrease in ownership of BX / Blackstone Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 32,044 shares of Blackstone Inc. (US:BX) valued at $3,684,740 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,529 shares of Blackstone Inc.. This represents a change in shares of -7.20% during the quarter. The current value of the position is $3,696,275 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)
2026-05-12 2026-03-31 13F BLACKSTONE COM 09260D107 32,044 -2,485 -7.20 3,685 -30.78 0.0528
2026-02-17 2025-12-31 13F BLACKSTONE COM 09260D107 34,529 -4,362 -11.22 5,322 -19.90 0.0920
2025-11-14 2025-09-30 13F BLACKSTONE COM 09260D107 38,891 6,711 20.85 6,645 38.04 0.0918
2025-08-14 2025-06-30 13F BLACKSTONE COM 09260D107 32,180 8,499 35.89 4,813 45.41 0.0826
2025-04-28 2025-03-31 13F BLACKSTONE COM 09260D107 23,681 2,628 12.48 3,310 -8.79 0.1092
2025-01-29 2024-12-31 13F BLACKSTONE COM 09260D107 21,053 6,707 46.75 3,630 65.26 0.1340
2024-11-12 2024-09-30 13F BLACKSTONE COM 09260D107 14,346 285 2.03 2,197 26.21 0.0545
2024-08-13 2024-06-30 13F Blackstone Group Inc CL A COM 09260D107 14,061 715 5.36 1,741 -0.74 0.0458
2024-04-23 2024-03-31 13F BLACKSTONE COM 09260D107 13,346 1,022 8.29 1,753 8.68 0.0466
2024-02-06 2023-12-31 13F BLACKSTONE COM 09260D107 12,324 -2,885 -18.97 1,614 -0.98 0.0534
2023-10-30 2023-09-30 13F BLACKSTONE COM 09260D107 15,209 623 4.27 1,629 20.13 0.0599
2023-07-25 2023-06-30 13F BLACKSTONE COM 09260D107 14,586 1,436 10.92 1,356 17.40 0.0512
2023-05-04 2023-03-31 13F BLACKSTONE COM 09260D107 13,150 -5,159 -28.18 1,155 -14.95 0.0465
2023-02-07 2022-12-31 13F Blackstone Group Inc CL A COM 09260D107 18,309 887 5.09 1,358 -6.86 0.0603
2022-11-10 2022-09-30 13F Blackstone Group Inc CL A Stock 09260D107 17,422 -1,966 -10.14 1,458 -17.58 0.0789
2022-08-09 2022-06-30 13F Blackstone Group Inc CL A COM 09260D107 19,388 4,194 27.60 1,769 -8.29 0.1094
2022-05-16 2022-03-31 13F Blackstone Group Inc CL A EQUITY 09260D107 15,194 1,228 8.79 1,929 6.75 0.1560
2022-02-11 2021-12-31 13F Blackstone Group Inc CL A Equity 09260D107 13,966 128 0.92 1,807 12.24 0.1165
2021-11-16 2021-09-30 13F Blackstone Group Inc CL A COM 09260D107 13,838 -132 -0.94 1,610 18.64 0.1208
2021-08-16 2021-06-30 13F Blackstone Group Inc CL A Equity 09260D107 13,970 1,713 13.98 1,357 48.47 0.1189
2021-05-17 2021-03-31 13F BLACKSTONE GROUP Equity 09260D107 12,257 0 0.00 914 15.11 0.0986
2021-02-16 2020-12-31 13F BLACKSTONE GROUP Equity 09260D107 12,257 0 0.00 794 16.76 0.1001
2020-11-16 2020-09-30 13F/A-1 Blackstone Group Inc CL A Equity 09260D107 12,257 -39 -0.32 680 -2.44 0.1315
2020-11-16 2020-09-30 13F Unitedhealth Group Inc Com Equity 09260D107 2,203 781
2020-08-13 2020-06-30 13F Blackstone Group Inc CL A Equity 09260D107 12,296 6,957 130.31 697 186.83 0.1300
2020-05-15 2020-03-31 13F Blackstone Group Inc CL A Equity 09260D107 5,339 5,339 243 0.0654
2019-05-16 2019-03-31 13F BLACKSTONE GROUP L P COM UNIT EQUITY 09253U108 0 -12,500 -100.00 0 -100.00
2019-02-13 2018-12-31 13F BLACKSTONE GROUP L P COM UNIT EQUITY 09253U108 12,500 0 0.00 373 -21.64 0.1319
2018-11-14 2018-09-30 13F BLACKSTONE GROUP L P COM UNIT EQUITY 09253U108 12,500 0 0.00 476 18.41 0.1050
2018-08-10 2018-06-30 13F Blackstone Group EQUITY 09253U108 12,500 0 0.00 402 0.1406
2018-05-22 2018-03-31 13F/A-1 BLACKSTONE GROUP LP COM UNIT Units 09253U108 12,500 10,000 400.00 0 -100.00
2018-02-14 2017-12-31 13F BLACKSTONE GROUP LP COM UNIT Units 09253U108 2,500 2,500 80 0.0101
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.