Blackstone Inc.
US ˙ NYSE ˙ US09260D1072

SecurityBX / Blackstone Inc.
InstitutionRobertson Stephens Wealth Management, LLC
Latest Disclosed Ownership70,461 shares
Latest Disclosed Value $ 8,102,270
Robertson Stephens Wealth Management, LLC reports 7.00% increase in ownership of BX / Blackstone Inc.

On April 28, 2026 - Robertson Stephens Wealth Management, LLC filed a 13F-HR form disclosing ownership of 70,461 shares of Blackstone Inc. (US:BX) valued at $8,102,310 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 65,849 shares of Blackstone Inc.. This represents a change in shares of 7.00% during the quarter. The current value of the position is $8,127,676 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.

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)
2026-04-28 2026-03-31 13F BLACKSTONE COM 09260D107 70,461 4,612 7.00 8,102 -20.17 0.2270
2026-02-02 2025-12-31 13F BLACKSTONE COM 09260D107 65,849 57,381 677.62 10,150 601.87 0.2645
2025-11-12 2025-09-30 13F BLACKSTONE COM 09260D107 8,468 1,301 18.15 1,447 34.89 0.0437
2025-07-24 2025-06-30 13F BLACKSTONE COM 09260D107 7,167 1,539 27.35 1,072 36.39 0.0341
2025-04-17 2025-03-31 13F BLACKSTONE COM 09260D107 5,628 724 14.76 787 -6.98 0.0270
2025-01-27 2024-12-31 13F BLACKSTONE COM 09260D107 4,904 -2,787 -36.24 845 -28.21 0.0299
2024-11-12 2024-09-30 13F BLACKSTONE COM 09260D107 7,691 4,034 110.31 1,178 160.40 0.0427
2024-08-13 2024-06-30 13F BLACKSTONE COM 09260D107 3,657 -213 -5.50 453 -11.02 0.0228
2024-05-15 2024-03-31 13F BLACKSTONE COM 09260D107 3,870 1,596 70.18 508 71.04 0.0270
2024-02-06 2023-12-31 13F BLACKSTONE COM 09260D107 2,274 -1,711 -42.94 298 -30.28 0.0181
2023-11-13 2023-09-30 13F BLACKSTONE COM 09260D107 3,985 521 15.04 427 32.30 0.0288
2023-08-11 2023-06-30 13F BLACKSTONE COM 09260D107 3,464 3,464 322 0.0228
2022-08-12 2022-06-30 13F Blackstone Group Inc CL A COM 09260D107 0 -2,641 -100.00 0 -100.00
2022-05-16 2022-03-31 13F Blackstone Group Inc CL A COM 09260D107 2,641 -2,469 -48.32 335 -49.32 0.0281
2022-02-14 2021-12-31 13F Blackstone Group Inc CL A COM 09260D107 5,110 5,110 661 0.0556
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.