Blackstone Inc.
DE ˙ DB ˙ US09260D1072
94,54 € ↓ -4,66 (-4,70%)
2026-06-03
CENA AKCJI
SecurityDE:BBN1 / Blackstone Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership52,853 shares
Latest Disclosed Value $ 6,077,548
Assetmark, Inc reports 20.50% decrease in ownership of BBN1 / Blackstone Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 52,853 shares of Blackstone Inc. (DE:BBN1) valued at $5,138,897 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 66,478 shares of Blackstone Inc.. This represents a change in shares of -20.50% during the quarter. The current value of the position is $4,996,723 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)
2026-05-06 2026-03-31 13F BLACKSTONE COM 09260D107 52,853 -13,625 -20.50 6,078 -40.69 0.0124
2026-01-23 2025-12-31 13F BLACKSTONE COM 09260D107 66,478 -10,259 -13.37 10,247 -21.85 0.0209
2025-11-06 2025-09-30 13F BLACKSTONE COM 09260D107 76,737 1,339 1.78 13,110 16.24 0.0281
2025-08-04 2025-06-30 13F BLACKSTONE COM 09260D107 75,398 6,740 9.82 11,278 17.52 0.0266
2025-05-06 2025-03-31 13F BLACKSTONE COM 09260D107 68,658 3,186 4.87 9,597 -14.98 0.0264
2025-02-06 2024-12-31 13F BLACKSTONE COM 09260D107 65,472 5,290 8.79 11,289 22.50 0.0307
2024-11-01 2024-09-30 13F BLACKSTONE COM 09260D107 60,182 11,441 23.47 9,216 52.72 0.0264
2024-08-13 2024-06-30 13F BLACKSTONE COM 09260D107 48,741 20,427 72.14 6,034 62.25 0.0187
2024-05-07 2024-03-31 13F BLACKSTONE COM 09260D107 28,314 2,804 10.99 3,720 11.38 0.0121
2024-02-09 2023-12-31 13F BLACKSTONE COM 09260D107 25,510 2,648 11.58 3,340 36.34 0.0121
2023-10-27 2023-09-30 13F BLACKSTONE COM 09260D107 22,862 4,107 21.90 2,449 40.50 0.0098
2023-08-11 2023-06-30 13F BLACKSTONE INC COM COM 09260D107 18,755 3,374 21.94 1,744 29.02 0.0068
2023-05-05 2023-03-31 13F BLACKSTONE INC COM COM 09260D107 15,381 1,458 10.47 1,351 30.91 0.0056
2023-02-10 2022-12-31 13F BLACKSTONE COM 09260D107 13,923 9,691 228.99 1,033 191.53 0.0045
2022-11-01 2022-09-30 13F BLACKSTONE COM 09260D107 4,232 555 15.09 354 5.67 0.0017
2022-08-03 2022-06-30 13F BLACKSTONE INC COM COM 09260D107 3,677 -104 -2.75 335 -30.21 0.0015
2022-05-13 2022-03-31 13F BLACKSTONE INC COM COM 09260D107 3,781 -134 -3.42 480 -5.33 0.0020
2022-02-14 2021-12-31 13F BLACKSTONE INC COM COM 09260D107 3,915 3,621 1,231.63 507 1,391.18 0.0021
2021-11-12 2021-09-30 13F BLACKSTONE INC COM COM 09260D107 294 136 86.08 34 126.67 0.0002
2021-08-16 2021-06-30 13F BLACKSTONE GROUP INC COM COM 09260D107 158 158 15 0.0001
2021-02-10 2020-12-31 13F BLACKSTONE GROUP INC COM CL A CL A 09260D107 0 -130 -100.00 0 -100.00
2020-11-13 2020-09-30 13F BLACKSTONE GROUP INC COM CL A CL A 09260D107 130 130 7 0.0000
2017-08-14 2017-06-30 13F BLACKSTONE GROUP L P COM UNIT COM 09253U108 0 -500 -100.00 0 -100.00
2017-09-15 2017-03-31 13F/A-1 BLACKSTONE GROUP L P COM UNIT COM 09253U108 500 500 15 0.0002
2017-05-08 2017-03-31 13F BLACKSTONE GROUP L P COM UNIT COM 09253U108 500 15 0.0002
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.