UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~Washington~~WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the ~~Securities Exchange Act of 1934~~

~~Date~~Securities ofExchange ~~Report~~Act ~~(Date~~ of ~~earliest event reported): February 24, 2016 (March 1, 2016)~~1934

~~Guggenheim~~Date ~~Build~~of ~~America~~report ~~Bonds~~(Date ~~Managed~~of ~~Duration~~earliest ~~Trust~~event reported): April 29, 2022

~~(Exact~~Guggenheim ~~name~~Taxable ofMunicipal ~~registrant~~Bond as& ~~specified~~Investment Grade inDebt ~~its charter)~~Trust

(Exact name of Registrant as Specified in Its Charter)

Delaware	811-22437		27-3396957
(State or other jurisdiction	(Commission File Number)		(I.R.S. Employer
of incorporation)			Identification No.)

227 West Monroe Street
Chicago, Illinois		60606
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (312) 827-0100

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
r	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
r	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
r	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b))
r	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13-4(c))

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

1¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

~~Item~~¨ ~~7.01 Regulation~~Soliciting FDmaterial ~~Disclosure~~pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

~~Amended~~¨ ~~and Restated By~~Pre-~~Laws. On~~commencement ~~February~~communications ~~24,~~pursuant ~~2016,~~to ~~the~~Rule ~~Board of Trustees of Guggenheim Build America Bonds Managed Duration Trust~~ 14d-2(~~the “Fund”~~b) ~~amended~~under ~~and restated in its entirety~~ the ~~By-Laws~~Exchange ofAct ~~the Fund~~ (~~the~~17 ~~“Amended~~CFR ~~and Restated By-Laws”)~~240. ~~The Amended and Restated By~~14d-~~Laws are attached hereto as Exhibit 3.1 and are incorporated herein by reference.~~2(b))

~~Item~~¨ ~~9.01 Financial~~Pre-commencement ~~Statements~~communications ~~and~~pursuant ~~Exhibits~~to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (d§230.405 of this chapter) ~~Exhibits~~ or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ¨

~~3.1~~If ~~Amended~~an ~~and~~emerging ~~Restated~~growth ~~By-Laws~~company, ofindicate ~~Guggenheim~~by ~~Build~~check ~~America~~mark ~~Bonds~~if ~~Managed~~the ~~Duration~~registrant has ~~Trust~~elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Shares of Beneficial Interest, $0.01 par value		GBAB		New York Stock Exchange

~~Pursuant~~Item to8.01. ~~the~~Other ~~requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized~~Events.

On April 29, 2022, the Board of Trustees of Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust (the “Registrant”) approved a new sub-advisory agreement among the Registrant, Guggenheim Funds Investment Advisors, LLC (the “Investment Adviser”), the Registrant’s investment adviser, and Guggenheim Partners Advisors, LLC (“GPA”) to provide investment sub-advisory services to the Registrant. GPA will assist the Registrant’s current sub-adviser, Guggenheim Partners Investment Management, LLC (“GPIM”), in the supervision and direction of the investment strategy of the Registrant.

3The new sub-advisory agreement among the Registrant, the Investment Adviser and GPA will not affect the Registrant’s investment objective or investment policies or change the composition of the portfolio management team. For providing investment sub-advisory services, the Investment Adviser will compensate GPA out of the advisory fees the Investment Adviser receives from the Registrant, and GPA will not be paid by the Registrant. The Investment Adviser, GPIM and GPA are affiliates and part of Guggenheim Investments.

~~EXHIBIT INDEX~~SIGNATURES

Exhibit No.	Description
3.1	Amended and Restated By-Laws of Guggenheim Build America Bonds Managed Duration Trust

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

4Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust

Date: April 29, 2022	By:	/s/ Mark E. Mathiasen
		Name: Mark E. Mathiasen
		Title: Secretary

GUGGENHEIM BUILD AMERICA BONDS MANAGED DURATION TRUST

/s/ Mark E. Mathiasen

Mark E. Mathiasen

DATE: March 1, 2016

Filing Compare · Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust