블랙스톤 주식회사
MX ˙ BMV ˙ US09260D1072
SecurityMX:BX / Blackstone Inc.
InstitutionBoston Private Wealth Llc
Latest Disclosed Ownership6,988 shares
Latest Disclosed Value $ 803,509
Boston Private Wealth Llc reports 2.51% decrease in ownership of BX / Blackstone Inc.

On April 17, 2026 - Boston Private Wealth Llc filed a 13F-HR form disclosing ownership of 6,988 shares of Blackstone Inc. (MX:BX) valued at $803,509 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 7,168 shares of Blackstone Inc.. This represents a change in shares of -2.51% during the quarter.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-17 2026-03-31 13F BLACKSTONE COM 09260D107 6,988 -180 -2.51 804 -27.26 0.0529
2026-02-04 2025-12-31 13F BLACKSTONE COM 09260D107 7,168 -140 -1.92 1,105 -11.54 0.0651
2025-11-06 2025-09-30 13F BLACKSTONE COM 09260D107 7,308 -124 -1.67 1,248 12.33 0.0672
2025-08-14 2025-06-30 13F BLACKSTONE COM 09260D107 7,432 -1,469 -16.50 1,112 -10.69 0.0596
2025-05-14 2025-03-31 13F BLACKSTONE COM 09260D107 8,901 -139,450 -94.00 1,244 -95.14 0.0511
2025-02-05 2024-12-31 13F BLACKSTONE COM 09260D107 148,351 145,090 4,449.25 25,579 5,025.85 0.4779
2024-10-18 2024-09-30 13F BLACKSTONE COM 09260D107 3,261 -146,037 -97.82 499 -97.30 0.4249
2024-08-06 2024-06-30 13F BLACKSTONE COM 09260D107 149,298 -3,078 -2.02 18,483 -7.66 0.4575
2024-05-15 2024-03-31 13F BLACKSTONE COM 09260D107 152,376 133,203 694.74 20,018 697.49 0.4463
2024-01-30 2023-12-31 13F BLACKSTONE COM 09260D107 19,173 -145,804 -88.38 2,510 -85.80 0.0611
2023-10-23 2023-09-30 13F BLACKSTONE COM 09260D107 164,977 -264 -0.16 17,676 15.06 0.3882
2023-07-24 2023-06-30 13F BLACKSTONE COM 09260D107 165,241 -15,959 -8.81 15,362 -3.48 0.2776
2023-05-12 2023-03-31 13F BLACKSTONE COM 09260D107 181,200 8,173 4.72 15,917 24.00 0.2225
2023-02-10 2022-12-31 13F Blackstone COM 09260D107 173,027 128,520 288.76 12,837 244.59 0.1733
2022-11-09 2022-09-30 13F Blackstone COM 09260D107 44,507 26,488 147.00 3,725 126.58 0.0544
2022-08-16 2022-06-30 13F Blackstone COM 09260D107 18,019 -6,609 -26.84 1,644 -47.41 0.0253
2022-05-13 2022-03-31 13F Blackstone COM 09260D107 24,628 -8,852 -26.44 3,126 -27.84 0.0419
2022-02-15 2021-12-31 13F Blackstone COM 09260D107 33,480 -526,032 -94.02 4,332 -93.34 0.0710
2021-11-09 2021-09-30 13F Blackstone COM 09260D107 559,512 11,159 2.04 65,093 22.20 0.8363
2021-08-13 2021-06-30 13F Blackstone COM 09260D107 548,353 20,689 3.92 53,267 35.45 0.6754
2021-05-11 2021-03-31 13F Blackstone Group COM 09260D107 527,664 21,882 4.33 39,327 19.97 0.5478
2021-02-10 2020-12-31 13F BLACKSTONE GROUP INC COM CL A COM 09260D107 505,782 17,120 3.50 32,780 28.51 0.4811
2020-11-10 2020-09-30 13F BLACKSTONE GROUP INC COM CL A COM 09260D107 488,662 69,274 16.52 25,508 7.34 0.4207
2020-08-05 2020-06-30 13F BLACKSTONE GROUP INC COM CL A COM 09260D107 419,388 140,554 50.41 23,763 87.02 0.4416
2020-05-11 2020-03-31 13F Blackstone Group COM 09260D107 278,834 49,884 21.79 12,706 -0.79 0.3084
2020-02-13 2019-12-31 13F Blackstone Group COM 09260D107 228,950 228,950 12,807 0.2331
2016-08-01 2016-06-30 13F Blackstone Group COM 09253U108 0 -7,811 -100.00 0 -100.00
2016-05-13 2016-03-31 13F Blackstone Group COM 09253U108 7,811 7,811 0.00 219 0.0089
2016-02-12 2015-12-31 13F Blackstone Group COM 09253U108 0 -6,725 -100.00 0 -100.00
2015-11-12 2015-09-30 13F Blackstone Group COM 09253U108 6,725 0 0.00 213 -22.55 0.0083
2015-08-13 2015-06-30 13F Blackstone Group COM 09253U108 6,725 250 3.86 275 9.13 0.0091
2015-05-12 2015-03-31 13F Blackstone Group COM 09253U108 6,475 0 0.00 252 15.07 0.0081
2015-02-10 2014-12-31 13F Blackstone Group COM 09253U108 6,475 6,475 219 0.0071
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.