Blackstone Secured Lending Fund
US ˙ NYSE ˙ US09261X1028

SecurityBXSL / Blackstone Secured Lending Fund
InstitutionMoors & Cabot, Inc.
Latest Disclosed Ownership21,487 shares
Latest Disclosed Value $ 509,027
Moors & Cabot, Inc. reports 9.79% increase in ownership of BXSL / Blackstone Secured Lending Fund

On May 8, 2026 - Moors & Cabot, Inc. filed a 13F-HR form disclosing ownership of 21,487 shares of Blackstone Secured Lending Fund (US:BXSL) valued at $509,027 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 19,571 shares of Blackstone Secured Lending Fund. This represents a change in shares of 9.79% during the quarter. The current value of the position is $506,449 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)
2026-05-08 2026-03-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 21,487 1,916 9.79 509 -1.17 0.0218
2026-02-10 2025-12-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 19,571 -5,307 -21.33 515 -20.52 0.0221
2025-11-14 2025-09-30 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 24,878 9,979 66.98 649 41.48 0.0283
2025-08-06 2025-06-30 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 14,899 32 0.22 458 -4.78 0.0213
2025-05-08 2025-03-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 14,867 -410 -2.68 481 -2.43 0.0244
2025-02-07 2024-12-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 15,277 1,559 11.36 494 22.94 0.0235
2024-11-08 2024-09-30 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 13,718 182 1.34 402 -3.14 0.0200
2024-08-09 2024-06-30 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 13,536 -14,464 -51.66 414 -52.52 0.0221
2024-05-08 2024-03-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 28,000 15,140 117.73 872 145.63 0.0473
2024-02-14 2023-12-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 12,860 -582 -4.33 355 -3.27 0.0221
2023-11-08 2023-09-30 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 13,442 2,475 22.57 368 22.33 0.0249
2023-08-10 2023-06-30 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 10,967 -29 -0.26 300 9.49 0.0199
2023-05-05 2023-03-31 13F BLACKSTONE SECD LENDING FD COMMON STOCK 09261X102 10,996 10,996 274 0.0188
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.