블랙스톤 주식회사
US ˙ NYSE ˙ US09260D1072

SecurityBX / Blackstone Inc.
InstitutionPort Capital LLC
Latest Disclosed Ownership2,576 shares
Latest Disclosed Value $ 296,214
Port Capital LLC reports 5.01% increase in ownership of BX / Blackstone Inc.

On May 15, 2026 - Port Capital LLC filed a 13F-HR form disclosing ownership of 2,576 shares of Blackstone Inc. (US:BX) valued at $296,214 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,453 shares of Blackstone Inc.. This represents a change in shares of 5.01% during the quarter. The current value of the position is $305,385 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)
2026-05-15 2026-03-31 13F BLACKSTONE COM 09260D107 2,576 123 5.01 296 -21.69 0.0132
2026-02-17 2025-12-31 13F BLACKSTONE COM 09260D107 2,453 83 3.50 378 -6.67 0.0163
2025-11-14 2025-09-30 13F BLACKSTONE COM 09260D107 2,370 -60 -2.47 405 11.57 0.0169
2025-08-14 2025-06-30 13F BLACKSTONE COM 09260D107 2,430 0 0.00 363 6.76 0.0154
2025-05-15 2025-03-31 13F BLACKSTONE COM 09260D107 2,430 83 3.54 340 -16.05 0.0154
2025-02-14 2024-12-31 13F BLACKSTONE COM 09260D107 2,347 -101 -4.13 405 8.00 0.0185
2024-11-14 2024-09-30 13F BLACKSTONE COM 09260D107 2,448 -51 -2.04 375 21.36 0.0168
2024-08-14 2024-06-30 13F BLACKSTONE INC COM COM 09260D107 2,499 32 1.30 309 -4.63 0.0155
2024-05-15 2024-03-31 13F BLACKSTONE INC COM COM 09260D107 2,467 -23 -0.92 324 -0.61 0.0162
2024-02-15 2023-12-31 13F BLACKSTONE INC COM COM 09260D107 2,490 -45 -1.78 326 19.85 0.0182
2023-11-14 2023-09-30 13F BLACKSTONE INC COM COM 09260D107 2,535 2,535 272 0.0170
2022-08-15 2022-06-30 13F BLACKSTONE INC COM COM 09260D107 0 -2,000 -100.00 0 -100.00
2022-05-16 2022-03-31 13F BLACKSTONE INC COM COM 09260D107 2,000 0 0.00 254 -1.93 0.0176
2022-02-14 2021-12-31 13F BLACKSTONE INC COM COM 09260D107 2,000 0 0.00 259 11.16 0.0159
2021-11-15 2021-09-30 13F BLACKSTONE GROUP INC COM COM 09260D107 2,000 2,000 233 0.0118
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.