BlackRock Debt Strategies Fund, Inc.
US ˙ NYSE ˙ US09255R2022

SecurityDSU / BlackRock Debt Strategies Fund, Inc.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership14 shares
Latest Disclosed Value $ 134
Northwestern Mutual Wealth Management Co reports 91.36% decrease in ownership of DSU / BlackRock Debt Strategies Fund, Inc.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 14 shares of BlackRock Debt Strategies Fund, Inc. (US:DSU) valued at $134 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 162 shares of BlackRock Debt Strategies Fund, Inc.. This represents a change in shares of -91.36% during the quarter. The current value of the position is $135 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 DEBT STRATEGIES FD COM NEW 09255R202 14 -148 -91.36 0 -100.00 0.0000
2026-02-10 2025-12-31 13F/A-1 BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 162 162 2 0.0000
2025-08-13 2025-06-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 0 -34,553 -100.00 0 -100.00
2025-05-14 2025-03-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 34,553 -5,419 -13.56 361 -16.28 0.0003
2025-02-11 2024-12-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 39,972 77 0.19 430 -2.27 0.0004
2024-11-12 2024-09-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 39,895 75 0.19 440 2.09 0.0004
2024-08-16 2024-06-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 39,820 -527 -1.31 432 -3.36 0.0004
2024-05-15 2024-03-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 40,347 -430 -1.05 446 1.59 0.0005
2024-02-13 2023-12-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 40,777 -6,407 -13.58 440 -9.30 0.0005
2023-11-14 2023-09-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 47,184 -314 -0.66 485 4.09 0.0006
2023-08-14 2023-06-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 47,498 5,564 13.27 465 16.83 0.0006
2023-05-15 2023-03-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 41,934 -1,616 -3.71 399 -0.50 0.0006
2023-02-21 2022-12-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 43,550 -5,052 -10.39 401 -7.83 0.0006
2022-11-14 2022-09-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 48,602 -1,959 -3.87 434 -6.06 0.0008
2022-08-04 2022-06-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 50,561 3,810 8.15 462 -5.13 0.0008
2022-05-09 2022-03-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 46,751 -14,311 -23.44 487 -31.89 0.0008
2022-02-03 2021-12-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 61,062 290 0.48 715 2.00 0.0012
2021-11-15 2021-09-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 60,772 1,384 2.33 701 3.09 0.0013
2021-08-13 2021-06-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 59,388 4,809 8.81 680 13.14 0.0013
2021-05-14 2021-03-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 54,579 5,420 11.03 601 16.93 0.0013
2021-02-12 2020-12-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 49,159 31,125 172.59 514 187.15 0.0012
2020-11-13 2020-09-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 18,034 -31,818 -63.82 179 -61.51 0.0005
2020-08-14 2020-06-30 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 49,852 -3,035 -5.74 465 4.03 0.0014
2020-05-08 2020-03-31 13F BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 52,887 -8,657 -14.07 447 -35.12 0.0017
2020-02-13 2019-12-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 61,544 -15,987 -20.62 689 -17.29 0.0023
2019-11-12 2019-09-30 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 77,531 -3,922 -4.82 833 -5.02 0.0032
2019-08-12 2019-06-30 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 81,453 -28,747 -26.09 877 -25.74 0.0035
2019-05-10 2019-03-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 110,200 -66,117 -37.50 1,181 -31.46 0.0052
2019-02-12 2018-12-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 176,317 16,366 10.23 1,723 -3.31 0.0086
2018-11-01 2018-09-30 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 159,951 32,635 25.63 1,782 25.23 0.0090
2018-08-10 2018-06-30 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 127,316 -4,414 -3.35 1,423 -7.05 0.0080
2018-05-14 2018-03-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 131,730 3,846 3.01 1,531 2.34 0.0093
2018-01-31 2017-12-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 127,884 343 0.27 1,496 0.54 0.0095
2017-11-07 2017-09-30 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 127,541 7,512 6.26 1,488 7.44 0.0106
2017-08-10 2017-06-30 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 120,029 4,509 3.90 1,385 4.06 0.0111
2017-05-09 2017-03-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 115,520 46,668 67.78 1,331 70.42 0.0121
2017-02-15 2016-12-31 13F BLACKROCK DEBT STRAT FD COM NEW 09255R202 68,852 68,852 781 0.0085
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.