Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust
US ˙ NYSE

SecurityGBAB / Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust
InstitutionMorgan Stanley
Latest Disclosed Ownership3,168,127 shares
Ownership 11.40%
Morgan Stanley ownership in GBAB / Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust

2026-05-12 - Morgan Stanley has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,168,127 shares of Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust (US:GBAB). This represents 11.4 percent ownership of the company. In their previous filing dated 2025-08-07 , Morgan Stanley had reported owning 2,799,316 shares, indicating an increase of 13.18 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-05-12 2026-05-12 13G/A 2,799,316 3,168,127 13.18 11.40 9.62
2025-08-07 2025-08-07 13G/A 2,383,711 2,799,316 17.44 10.40 8.33
2025-02-04 2025-02-04 13G/A 1,602,391 2,383,711 48.76 9.60 37.14
2024-02-08 2024-02-08 13G 390,214 1,602,391 310.64 7.00 218.18
2016-02-12 2016-02-12 13G/A 390,214 2.20
2015-02-17 2015-02-17 13G/A 1,188,710 6.80
2014-02-10 2014-02-10 13G 1,272,491 7.30

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 3,168,126 321,863 11.31 45,938 8.17 0.0028
2026-05-27 2025-12-31 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,846,263 54,471 1.95 42,466 -2.37 0.0025
2026-02-13 2025-12-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,846,263 54,471 42,466 0.0025
2026-05-27 2025-09-30 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,791,792 107,116 3.99 43,496 7.72 0.0026
2025-11-14 2025-09-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,791,792 107,116 43,496 0.0026
2025-08-15 2025-06-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,684,676 157,007 6.21 40,378 2.73 0.0026
2025-05-15 2025-03-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,527,669 143,958 6.04 39,305 8.48 0.0028
2025-05-15 2024-12-31 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,383,711 395,278 19.88 36,232 3.65 0.0025
2025-02-14 2024-12-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 2,383,711 395,278 36,232 0.0025
2025-05-14 2024-09-30 13F/A-2 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,988,433 150,536 8.19 34,957 19.62 0.0025
2025-02-14 2024-09-30 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,988,433 150,536 34,957 0.0025
2024-11-14 2024-09-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,988,433 150,536 34,957 0.0025
2025-05-14 2024-06-30 13F/A-2 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,837,897 173,487 10.42 29,223 8.05 0.0023
2024-10-17 2024-06-30 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,837,897 173,487 29,223 0.0023
2024-08-14 2024-06-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,837,897 173,487 29,223 0.0023
2024-10-17 2024-03-31 13F/A-2 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,664,410 62,019 3.87 27,047 4.26 0.0022
2024-08-16 2024-03-31 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,664,410 62,019 27,047 0.0022
2024-05-15 2024-03-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,664,410 62,019 27,047 0.0022
2024-08-16 2023-12-31 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,602,391 95,536 6.34 25,943 10.79 0.0023
2024-02-13 2023-12-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,602,391 95,536 25,943 0.0023
2023-11-15 2023-09-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,506,855 103,346 7.36 23,417 2.36 0.0024
2023-08-14 2023-06-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,403,509 226,085 19.20 22,877 14.03 0.0023
2023-05-15 2023-03-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,177,424 106,802 9.98 20,063 14.55 0.0022
2023-02-14 2022-12-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 1,070,622 196,262 22.45 17,515 29.90 0.0020
2022-11-14 2022-09-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 874,360 124,813 16.65 13,483 1.17 0.0018
2022-10-27 2022-06-30 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 749,547 239,117 46.85 13,327 31.27 0.0017
2022-08-15 2022-06-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 749,547 239,117 13,327 0.0017
2022-10-27 2022-03-31 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 510,430 -45,345 -8.16 10,152 -23.03 0.0014
2022-05-13 2022-03-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 510,430 -45,345 10,152 0.0014
2022-02-14 2021-12-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 555,775 -46,254 -7.68 13,189 -10.51 0.0016
2021-11-15 2021-09-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 602,029 52,591 9.57 14,738 8.69 0.0020
2021-08-23 2021-06-30 13F/A-1 GUGGENHEIM TAXABLE MUNICP BO COM 401664107 549,438 44,987 8.92 13,560 14.87 0.0018
2021-08-16 2021-06-30 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 549,438 44,987 13,560 0.0004
2021-05-17 2021-03-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 504,451 31,239 6.60 11,805 -2.13 0.0017
2021-02-16 2020-12-31 13F GUGGENHEIM TAXABLE MUNICP BO COM 401664107 473,212 15,160 3.31 12,062 11.73 0.0019
2020-11-13 2020-09-30 13F GUGGENHEIM TAXABLE MUN MANAG COM 401664107 458,052 -15,569 -3.29 10,796 -1.96 0.0021
2020-08-14 2020-06-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 473,621 46,622 10.92 11,012 17.11 0.0024
2020-05-26 2020-03-31 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 426,999 33,071 8.40 9,403 0.80 0.0026
2020-05-15 2020-03-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 426,999 33,071 9,403 722.3464
2020-02-14 2019-12-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 393,928 7,976 2.07 9,328 1.13 0.0022
2019-11-14 2019-09-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 385,952 -146,089 -27.46 9,224 -27.73 0.0024
2019-08-14 2019-06-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 532,041 -230,341 -30.21 12,763 -26.02 0.0034
2019-05-15 2019-03-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 762,382 -41,500 -5.16 17,253 -2.13 0.0049
2019-02-14 2018-12-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 803,882 67,840 9.22 17,629 12.87 0.0053
2019-04-23 2018-09-30 13F/A-2 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 736,042 93,628 14.57 15,619 12.09 0.0039
2018-11-20 2018-09-30 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 736,042 0 15,619 0.0039
2018-11-14 2018-09-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 736,042 93,628 15,619
2019-04-23 2018-06-30 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 642,414 43,538 7.27 13,934 8.22 0.0038
2018-08-14 2018-06-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 642,414 43,538 13,934
2019-04-23 2018-03-31 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 598,876 24,264 4.22 12,876 -1.42 0.0036
2018-05-14 2018-03-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 598,876 24,264 12,876
2019-04-23 2017-12-31 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 574,612 18,820 3.39 13,062 3.08 0.0036
2018-02-14 2017-12-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 574,612 18,820 13,062
2017-11-14 2017-09-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 555,792 49,673 9.81 12,672 10.05 0.0038
2017-08-11 2017-06-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 506,119 110,674 27.99 11,515 30.88 0.0035
2017-05-22 2017-03-31 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 395,445 146,827 59.06 8,798 65.28 0.0027
2017-05-12 2017-03-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 395,445 8,798
2017-02-22 2016-12-31 13F/A-1 GUGGENHEIM TAXABLE MUN MNGD COM 401664107 248,618 -144,781 -36.80 5,323 -41.81 0.0017
2017-02-13 2016-12-31 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 248,618 5,323
2016-11-10 2016-09-30 13F GUGGENHEIM TAXABLE MUN MNGD COM 401664107 393,399 20,888 5.61 9,147 4.93 0.0031
2016-08-12 2016-06-30 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 372,511 91,680 32.65 8,717 34.38 0.0031
2016-05-12 2016-03-31 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 280,831 13,535 5.06 6,487 13.83 0.0025
2016-02-09 2015-12-31 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 267,296 -78,730 -22.75 5,699 -23.15 0.0021
2016-02-08 2015-09-30 13F/A-1 GUGGENHEIM BLD AMR BDS MANG COM 401664107 346,026 -14,888 -4.13 7,416 -0.01 0.0027
2015-11-09 2015-09-30 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 346,026 7,416
2015-08-12 2015-06-30 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 360,914 -113,323 -23.90 7,417 -30.21 0.0026
2015-05-14 2015-03-31 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 474,237 -413,934 -46.61 10,628 -46.05 0.0039
2015-02-13 2014-12-31 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 888,171 -134,461 -13.15 19,700 -9.60 0.0072
2014-12-16 2014-09-30 13F/A-1 GUGGENHEIM BLD AMR BDS MANG COM 401664107 1,022,632 51,697 5.32 21,793 8.33 0.0084
2014-11-14 2014-09-30 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 1,022,632 21,793
2014-05-13 2014-03-31 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 970,935 82,081 9.23 20,118 14.20 0.0084
2014-02-13 2013-12-31 13F GUGGENHEIM BLD AMR BDS MANG COM 401664107 888,854 33,297 3.89 17,617 2.60 0.0075
2013-11-13 2013-09-30 13F GUGGENHEIM BUILD AMERICA BO COM 401664107 855,557 235,888 38.07 17,170 26.53 0.0081
2013-08-08 2013-06-30 13F GUGGENHEIM BUILD AMERICA BO COM 401664107 619,669 619,669 13,570 0.0068
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.