黑石公司
MX ˙ BMV ˙ US09260D1072
SecurityMX:BX / Blackstone Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership783,999 shares
Latest Disclosed Value $ 90,152,045
Marshall Wace, Llp ownership in BX / Blackstone Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 783,999 shares of Blackstone Inc. (MX:BX) valued at $90,152,045 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of Blackstone Inc..

Marshall Wace, Llp has a history of taking positions in derivatives of the underlying security (BX) in the form of stock options. The firm currently holds call options representing 2,800 of underlying shares valued at $321,972 USD and put options representing 500 of underlying shares valued at $57,495 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:BX / Blackstone Inc. Historical Put/Call Ratio
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)
2026-05-14 2026-03-31 13F BLACKSTONE COMMON STOCK 09260D107 783,999 783,999 90,152 0.0425
2026-02-13 2025-12-31 13F BLACKSTONE COMMON STOCK 09260D107 0 -178,971 -100.00 0 -100.00
2025-11-13 2025-09-30 13F BLACKSTONE COMMON STOCK 09260D107 178,971 -342,042 -65.65 30,577 -60.77 0.0310
2025-08-13 2025-06-30 13F BLACKSTONE COMMON STOCK 09260D107 521,013 -932,890 -64.16 77,933 -61.65 0.0878
2025-05-15 2025-03-31 13F BLACKSTONE COMMON STOCK 09260D107 1,453,903 1,378,732 1,834.13 203,227 1,468.10 0.2580
2025-02-13 2024-12-31 13F BLACKSTONE COMMON STOCK 09260D107 75,171 75,171 12,961 0.0156
2024-11-14 2024-09-30 13F BLACKSTONE COMMON STOCK 09260D107 0 -107,064 -100.00 0 -100.00
2024-08-14 2024-06-30 13F BLACKSTONE COMMON STOCK 09260D107 107,064 103,691 3,074.15 13,255 2,891.87 0.0177
2024-05-15 2024-03-31 13F BLACKSTONE COMMON STOCK 09260D107 3,373 3,373 443 0.0007
2023-11-14 2023-09-30 13F BLACKSTONE COMMON STOCK 09260D107 0 -24,502 -100.00 0 -100.00
2023-08-14 2023-06-30 13F BLACKSTONE COMMON STOCK 09260D107 24,502 24,502 2,278 0.0044
2023-02-14 2022-12-31 13F BLACKSTONE COMMON STOCK 09260D107 0 -8,795 -100.00 0 -100.00
2022-11-14 2022-09-30 13F BLACKSTONE COMMON STOCK 09260D107 8,795 -12,305 -58.32 736 -61.77 0.0016
2022-08-15 2022-06-30 13F BLACKSTONE COMMON STOCK 09260D107 21,100 21,100 1,925 0.0040
2022-05-16 2022-03-31 13F BLACKSTONE COMMON STOCK 09260D107 0 -55,865 -100.00 0 -100.00
2022-02-14 2021-12-31 13F BLACKSTONE COMMON STOCK 09260D107 55,865 30,351 118.96 7,227 143.50 0.0133
2021-11-15 2021-09-30 13F BLACKSTONE COMMON STOCK 09260D107 25,514 -278,343 -91.60 2,968 -89.94 0.0123
2021-08-13 2021-06-30 13F BLACKSTONE COMMON STOCK 09260D107 303,857 135,807 80.81 29,517 135.66 0.1438
2021-05-17 2021-03-31 13F BLACKSTONE GROUP COMMON STOCK 09260D107 168,050 120,214 251.30 12,525 304.03 0.0574
2021-02-16 2020-12-31 13F BLACKSTONE GRO-A COMMON STOCK 09260D107 47,836 47,836 -71.53 3,100 -75.25 0.0168
2020-11-16 2020-09-30 13F BLACKSTONE GRO-A COMMON STOCK 09260D107 0 -47,986 -100.00 0 -100.00
2020-08-13 2020-06-30 13F BLACKSTONE GRO-A COMMON STOCK 09260D107 47,986 -54,660 -53.25 2,719 -41.86 0.0190
2020-05-15 2020-03-31 13F BLACKSTONE GRO-A COMMON STOCK 09260D107 102,646 102,646 4,677 0.0467
2019-08-14 2019-06-30 13F BLACKSTONE GROUP MLP 09253U108 0 -1,434 -100.00 0 -100.00
2019-05-29 2019-03-31 13F/A-1 BLACKSTONE GROUP MLP 09253U108 1,434 1,434 50 0.0005
2019-05-14 2019-03-31 13F BLACKSTONE GROUP MLP 09253U108 1,434 1,434 50
2019-02-14 2018-12-31 13F BLACKSTONE GROUP MLP 09253U108 0 -70,368 -100.00 0 -100.00
2018-12-06 2018-09-30 13F/A-1 BLACKSTONE GROUP MLP 09253U108 70,368 70,368 2,680 0.0228
2018-11-14 2018-09-30 13F BLACKSTONE GROUP MLP 09253U108 70,368 70,368 2,680
2016-11-10 2016-09-30 13F BLACKSTONE GROUP MLP 09253U108 0 -83,374 -100.00 0 -100.00
2016-08-12 2016-06-30 13F BLACKSTONE GROUP MLP 09253U108 83,374 83,374 0.00 2,046 0.0172
2016-05-13 2016-03-31 13F BLACKSTONE GROUP MLP 09253U108 0 -34,517 -100.00 0 -100.00
2016-02-10 2015-12-31 13F BLACKSTONE GROUP MLP 09253U108 34,517 34,517 0.00 1,009 0.0095
2015-11-12 2015-09-30 13F BLACKSTONE GROUP MLP 09253U108 0 -52,136 -100.00 0 -100.00
2015-08-14 2015-06-30 13F BLACKSTONE GROUP MLP 09253U108 52,136 38,558 283.97 2,131 303.60 0.0278
2015-05-11 2015-03-31 13F BLACKSTONE GROUP MLP 09253U108 13,578 -1,076,469 -98.75 528 -98.54 0.0069
2014-05-14 2014-03-31 13F BLACKSTONE GROUP MLP 09253U108 1,090,047 1,090,047 36,244 0.6592
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F BLACKSTONE EQUITY OPTION Call 2,800 21.74 322 -9.32 n/a n/a n/a
2026-02-13 2025-12-31 13F BLACKSTONE EQUITY OPTION Call 2,300 -23.33 355 -30.86 n/a n/a n/a
2025-11-13 2025-09-30 13F BLACKSTONE EQUITY OPTION Call 3,000 513 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F BLACKSTONE EQUITY OPTION Put 500 -66.67 57 -75.32 n/a n/a n/a
2026-02-13 2025-12-31 13F BLACKSTONE EQUITY OPTION Put 1,500 -31.82 231 -38.40 n/a n/a n/a
2025-11-13 2025-09-30 13F BLACKSTONE EQUITY OPTION Put 2,200 -98.90 376 -98.75 n/a n/a n/a
2025-08-13 2025-06-30 13F BLACKSTONE EQUITY OPTION Put 200,000 29,916 n/a n/a n/a
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.