BlackRock Multi-Sector Income Trust
US ˙ NYSE ˙ US09258A1079

SecurityBIT / BlackRock Multi-Sector Income Trust
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership9,980 shares
Latest Disclosed Value $ 124,950
Northwestern Mutual Wealth Management Co ownership in BIT / BlackRock Multi-Sector Income Trust

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 9,980 shares of BlackRock Multi-Sector Income Trust (US:BIT) valued at $124,950 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 9,980 shares of BlackRock Multi-Sector Income Trust. This represents a change in shares of 0.00% during the quarter. The current value of the position is $124,950 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)
2026-05-07 2026-03-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 9,980 0 0.00 125 -4.62 0.0001
2026-02-10 2025-12-31 13F/A-1 BLACKROCK MULTI SECTOR INC T COM 09258A107 9,980 0 0.00 130 -2.26 0.0001
2026-02-05 2025-12-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 275 -9,705 21 0.0000
2025-11-14 2025-09-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 9,980 0 0.00 134 -8.28 0.0001
2025-08-13 2025-06-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 9,980 0 0.00 146 0.69 0.0001
2025-05-14 2025-03-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 9,980 300 3.10 145 2.13 0.0001
2025-02-11 2024-12-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 9,680 0 0.00 141 -4.08 0.0001
2024-11-12 2024-09-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 9,680 3,606 59.37 147 67.05 0.0001
2024-08-16 2024-06-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 6,074 -395 -6.11 89 -13.73 0.0001
2024-05-15 2024-03-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 6,469 0 0.00 103 5.15 0.0001
2024-02-13 2023-12-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 6,469 874 15.62 97 21.25 0.0001
2023-11-14 2023-09-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 5,595 -683 -10.88 81 -11.11 0.0001
2023-08-14 2023-06-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 6,278 2,733 77.09 90 76.47 0.0001
2023-05-15 2023-03-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 3,545 502 16.50 52 18.60 0.0001
2023-02-21 2022-12-31 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 3,043 -368 -10.79 43 -12.24 0.0001
2022-11-14 2022-09-30 13F BLACKROCK MULTI SECTOR INC T COM 09258A107 3,411 3,411 49 0.0001
2020-08-14 2020-06-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 0 -1,161 -100.00 0 -100.00
2020-05-08 2020-03-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 1,161 -31,570 -96.45 14 -97.35 0.0001
2020-02-13 2019-12-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 32,731 -392 -1.18 529 -6.87 0.0018
2019-11-12 2019-09-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 33,123 -8,807 -21.00 568 -22.40 0.0022
2019-08-12 2019-06-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 41,930 -2,124 -4.82 732 0.14 0.0029
2019-05-10 2019-03-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 44,054 -1,019 -2.26 731 5.64 0.0032
2019-02-12 2018-12-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 45,073 11,963 36.13 692 23.57 0.0035
2018-11-01 2018-09-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 33,110 -49,659 -60.00 560 -60.42 0.0028
2018-08-10 2018-06-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 82,769 15,675 23.36 1,415 25.55 0.0079
2018-05-14 2018-03-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 67,094 15,634 30.38 1,127 20.66 0.0068
2018-01-31 2017-12-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 51,460 2,913 6.00 934 2.86 0.0060
2017-11-07 2017-09-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 48,547 11,726 31.85 908 35.93 0.0065
2017-08-10 2017-06-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 36,821 4,525 14.01 668 19.50 0.0054
2017-05-09 2017-03-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 32,296 11,046 51.98 559 59.71 0.0051
2017-02-15 2016-12-31 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 21,250 10,000 88.89 350 82.29 0.0038
2016-11-14 2016-09-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 11,250 10,075 857.45 192 910.53 0.0029
2016-08-29 2016-06-30 13F BLACKROCK MULTI-SECTOR INC T COM 09258A107 1,175 1,175 19 0.0003
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.