BlackRock Taxable Municipal Bond Trust
US ˙ NYSE ˙ US09248X1000

SecurityBBN / BlackRock Taxable Municipal Bond Trust
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership91,314 shares
Latest Disclosed Value $ 1,476,599
Advisor Group Holdings, Inc. reports 29.91% decrease in ownership of BBN / BlackRock Taxable Municipal Bond Trust

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 91,314 shares of BlackRock Taxable Municipal Bond Trust (US:BBN) valued at $1,476,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 130,285 shares of BlackRock Taxable Municipal Bond Trust. This represents a change in shares of -29.91% during the quarter. The current value of the position is $1,456,458 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 BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 91,314 -38,971 -29.91 1,477 -30.57 0.0013
2026-02-17 2025-12-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 130,285 -34,144 -20.77 2,127 -21.58 0.0031
2025-11-14 2025-09-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 164,429 -36,254 -18.07 2,712 -16.15 0.0038
2025-09-04 2025-06-30 13F/A-1 BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 200,683 -27,292 -11.97 3,234 -14.99 0.0058
2025-08-13 2025-06-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 72,397 -155,578 1,167 0.0013
2025-05-12 2025-03-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 227,975 30,841 15.64 3,803 19.70 0.0085
2025-06-06 2024-12-31 13F/A-1 BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 197,134 16,789 9.31 3,178 -1.12 0.0071
2025-02-07 2024-12-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 181,252 907 2,999 0.0076
2024-11-13 2024-09-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 180,345 27,383 17.90 3,214 28.52 0.0072
2024-08-13 2024-06-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 152,962 -530 -0.35 2,501 -0.32 0.0059
2024-05-10 2024-03-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 153,492 -234,131 -60.40 2,508 -60.20 0.0056
2024-02-12 2023-12-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 387,623 -237,482 -37.99 6,303 -33.50 0.0110
2023-11-13 2023-09-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 625,105 241,189 62.82 9,477 48.78 0.0140
2023-08-21 2023-06-30 13F/A-1 BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 383,916 -40,368 -9.51 6,369 -16.23 0.0114
2023-08-10 2023-06-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 383,916 -40,368 6,369 0.0017
2023-05-12 2023-03-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 424,284 -36,177 -7.86 7,603 -1.95 0.0143
2023-02-10 2022-12-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 460,461 -2,868 -0.62 7,754 1.85 0.0157
2022-11-14 2022-09-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 463,329 -2,160 -0.46 7,613 -14.64 0.0174
2022-08-10 2022-06-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 465,489 151,472 48.24 8,919 28.98 0.0197
2022-05-04 2022-03-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 314,017 104,359 49.78 6,915 26.00 0.0134
2022-02-03 2021-12-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 209,658 24,664 13.33 5,488 15.22 0.0104
2021-11-05 2021-09-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 184,994 -3,096 -1.65 4,763 -1.77 0.0099
2021-08-02 2021-06-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 188,090 -32,141 -14.59 4,849 -10.67 0.0105
2021-05-13 2021-03-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 220,231 51,508 30.53 5,428 18.64 0.0131
2021-02-10 2020-12-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 168,723 39,182 30.25 4,575 36.28 0.0122
2020-11-12 2020-09-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 129,541 13,562 11.69 3,357 16.20 0.0100
2020-08-14 2020-06-30 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 115,979 54,671 89.17 2,889 115.92 0.0097
2020-05-18 2020-03-31 13F BLACKROCK TAX MUNICPAL BD TR SHS 09248X100 61,308 61,308 1,338 0.0055
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.