NPORT-EX 1 NPORT_2812679142836045.htm

EX-BBN

Schedule of Investments  (unaudited) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN) (Percentages shown are based on Net Assets)

Security		Par (000)				Value
Corporate Bonds — 6.6%
Diversified Financial Services — 0.2%
Western Group Housing LP, 6.75%, 03/15/57(a)(b)		$	2,473			$	3,081,937
Education — 3.1%
George Washington University, Series 2018, 4.13%, 09/15/48			7,191				7,558,009
Rensselaer Polytechnic Institute, Series 2018, 5.25%, 09/01/48			20,000				22,165,525
Wesleyan University, 4.78%, 07/01/16(b)			11,000				11,306,203
							41,029,737
Health Care Providers & Services — 3.3%
Montefiore Obligated Group, Series 18-C, 5.25%, 11/01/48			7,371				7,647,272
Ochsner Clinic Foundation, 5.90%, 05/15/45			5,000				6,246,646
PeaceHealth Obligated Group, Series 2018, 4.79%, 11/15/48			5,065				5,709,185
Providence St Joseph Health Obligated Group, Series A, 3.93%, 10/01/48			2,438				2,429,502
Toledo Hospital, 5.75%, 11/15/38			20,100				22,132,803
							44,165,408
Total Corporate Bonds — 6.6% (Cost — $81,997,777)							88,277,082
Municipal Bonds — 149.2%
Arizona — 2.2%
Salt River Project Agricultural Improvement & Power District, RB, Build America Bonds, Series A, 4.84%, 01/01/41(b)			24,545				28,553,689
California — 32.0%
Bay Area Toll Authority, RB, Build America Bonds, San Francisco Toll Bridge:
Series S-1, 6.92%, 04/01/40			13,700				19,052,316
Series S-1, 7.04%, 04/01/50			1,920				2,909,933
Series S-3, 6.91%, 10/01/50			14,000				21,203,700
City of San Francisco California, Public Utilities Commission Water Revenue, RB, Build America Bonds, Sub-Series E, 6.00%, 11/01/40(b)			21,255				27,015,955
City of San Jose California, Refunding ARB, Norman Y Mineta San Jose International Airport SJC, Series B (AGM), 6.60%, 03/01/41(b)			10,000				10,622,400

Security		Par (000)				Value
California (continued)
County of Alameda California Joint Powers Authority, RB, Build America Bonds, Recovery Zone, Series A, 7.05%, 12/01/44(b)		$	11,000			$	16,179,240
County of Orange California Local Transportation Authority, Refunding RB, Build America Bonds, Series A, 6.91%, 02/15/41			5,000				6,793,350
County of Sonoma California, Refunding RB, Pension Obligation, Series A (GTD), 6.00%, 12/01/29			14,345				16,851,215
Los Angeles Community College District California, GO, Build America Bonds, 6.60%, 08/01/42			10,000				14,175,400
Los Angeles Department of Water & Power, RB, Build America Bonds:
6.17%, 07/01/40(b)			37,500				38,963,625
7.00%, 07/01/41			17,225				18,037,331
Metropolitan Water District of Southern California, RB, Build America Bonds, Series A, 6.95%, 07/01/40			12,000				12,572,160
Palomar Community College District, GO, Build America Bonds, Series B-1, 7.19%, 08/01/45			7,500				7,912,050
Rancho Water District Financing Authority, RB, Build America Bond, Series A(b):
6.34%, 08/01/20(b)(c)			165				172,509
6.34%, 08/01/40			19,835				20,712,104
Riverside Community College District Foundation, GO, Build America Bonds, Series D-1, 7.02%, 08/01/40			11,000				11,534,930
San Diego County Regional Airport Authority, ARB, Consolidated Rental Car Facility Project, Series B, 5.59%, 07/01/43			4,000				4,405,520
San Diego County Regional Airport Authority, Refunding ARB, Build America Bonds, Sub-Series C, 6.63%, 07/01/40			32,100				33,479,979
State of California, GO, Build America Bonds, Various Purpose:
7.55%, 04/01/39			9,035				13,807,287
7.63%, 03/01/40			8,950				13,622,795
7.60%, 11/01/40(b)			15,000				23,387,250
State of California Public Works Board, RB, Build America Bonds, Series G-2, 8.36%, 10/01/34			18,145				26,911,575
University of California, RB, Build America Bonds(b):
5.95%, 05/15/45			24,000				30,877,440
6.30%, 05/15/50			27,010				32,887,106
							424,087,170

1

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN) (Percentages shown are based on Net Assets)

Security		Par (000)				Value
Colorado — 3.5%
City & County of Denver Colorado School District No. 1, COP, Refunding, Denver Colorado Public Schools, Series B, 7.02%, 12/15/37		$	6,000			$	8,257,800
Regional Transportation District, COP, Build America Bonds, Series B, 7.67%, 06/01/40(b)			23,000				32,749,470
State of Colorado, COP, Build America Bonds, Building Excellent Schools, Series E, 7.02%, 03/15/21(c)			5,000				5,398,650
							46,405,920
District of Columbia — 3.4%
Metropolitan Washington Airports Authority Dulles Toll Road Revenue, ARB, Build America Bonds:
Series D, 8.00%, 10/01/47			10,750				15,580,942
Dulles Toll Road Revenue, 7.46%, 10/01/46			9,235				13,660,597
Washington Convention & Sports Authority, Refunding RB, Series C, 7.00%, 10/01/20(c)			15,000				15,955,050
							45,196,589
Florida — 4.8%
City of Sunrise Florida Utility System, Refunding RB, Build America Bonds, Series B, 5.91%, 10/01/35(b)			23,000				23,938,400
County of Miami-Dade Florida Educational Facilities Authority, Refunding RB, Series B, 5.07%, 04/01/50			12,250				14,064,715
County of Pasco Florida Water & Sewer, RB, Build America Bonds, Series B, 6.76%, 10/01/39			1,500				1,523,595
Florida Development Finance Corp., RB, Midtown Compus Properties, 7.00%, 12/01/48(a)			4,500				4,441,365
Sumter Landing Community Development District, RB, Taxable Senior Recreational, Series 2016, 4.17%, 10/01/47			2,575				2,568,691
Town of Davie Florida Water & Sewer, RB, Build America Bonds, Series B (AGM), 6.85%, 10/01/40			2,500				2,624,800

Security		Par (000)				Value
Florida (continued)
Village Center Community Development District, Refunding RB, 5.02%, 11/01/36		$	13,500			$	14,606,325
							63,767,891
Georgia — 5.0%
Municipal Electric Authority of Georgia, Refunding RB, Build America Bonds, Series A:
6.64%, 04/01/57			26,923				29,699,300
6.66%, 04/01/57			20,491				24,808,864
7.06%, 04/01/57			9,945				11,504,674
							66,012,838
Hawaii — 2.4%
University of Hawaii, RB, Build America Bonds, Series B-1, 6.03%, 10/01/40(b)			30,500				31,828,275
Illinois — 17.5%
Chicago Board of Education, GO:
Build America Bonds, 6.52%, 12/01/40			9,745				9,932,006
Taxable Build America Bonds, 6.04%, 12/01/29			2,150				2,177,735
Taxable Qualified School Construction Bonds, 6.32%, 11/01/29			9,465				9,726,045
Chicago O’Hare International Airport, Refunding ARB, Build America Bonds, Series B:
O’Hare International Airport, General 3rd Lien, 6.85%, 01/01/38(b)			30,110				30,863,051
6.40%, 01/01/40			1,500				2,001,270
Chicago Transit Authority, RB:
Build America Bonds, Series B, 6.20%, 12/01/40(b)			16,015				19,825,289
Pension Funding, Series A, 6.90%, 12/01/40			4,075				5,330,385
Pension Funding, Series B, 6.90%, 12/01/40			4,900				6,409,543
City of Chicago Illinois Wastewater Transmission, RB, Build America Bonds, Series B, 6.90%, 01/01/40(b)			36,000				46,382,400
City of Chicago Illinois Waterworks Transmission, RB, Build America Bonds, 2nd Lien, Series B, 6.74%, 11/01/40			15,250				20,161,567
Illinois Finance Authority, RB, Carle Foundation, Series A, 5.75%, 08/15/34			5,000				5,371,850

2

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN) (Percentages shown are based on Net Assets)

Security		Par (000)				Value
Illinois (continued)
Illinois Municipal Electric Agency, RB, Build America Bonds, Series A, 7.29%, 02/01/35		$	15,000			$	19,471,350
Northern Illinois Municipal Power Agency, RB, Build America Bonds, Prairie State Project, Series A, 7.82%, 01/01/40			5,000				7,039,850
State of Illinois, GO, Build America Bonds:
6.73%, 04/01/35			6,320				6,809,168
Pension, 7.35%, 07/01/35			35,855				40,491,769
							231,993,278
Indiana — 1.7%
Indiana Finance Authority, RB, Build America Bonds, Series B, 6.60%, 02/01/39			7,900				10,898,050
Indiana Municipal Power Agency, RB, Build America Bonds, Direct Payment, Series A, 5.59%, 01/01/42			10,000				12,090,000
							22,988,050
Kentucky — 1.3%
Westvaco Corp., RB, MeadWestvaco Corp., 7.67%, 01/15/27(a)			13,800				16,809,884
Massachusetts — 0.6%
Commonwealth of Massachusetts Transportation Fund Revenue, RB, Build America Bonds, Recovery Zone, Series B, 5.73%, 06/01/40(b)			5,000				6,195,150
Massachusetts HFA, Refunding RB, Series D, 7.02%, 12/01/42			1,225				1,253,163
							7,448,313
Michigan — 3.5%
Michigan Finance Authority, RB, Series D, 5.02%, 11/01/43			7,500				8,391,075
Michigan State University, RB, Build America Bonds, General, Series A, 6.17%, 02/15/50			5,500				6,556,330
Michigan State University, Refunding RB, Taxable, Series A, 4.50%, 08/15/48			14,575				15,200,705
Michigan Tobacco Settlement Finance Authority, RB, Series A, 7.31%, 06/01/34			15,985				15,832,663
							45,980,773
Minnesota — 1.3%
Southern Minnesota Municipal Power Agency, Refunding RB, Build America Bonds, Series A, 5.93%, 01/01/43			8,000				10,393,040

Security		Par (000)				Value
Minnesota (continued)
Western Minnesota Municipal Power Agency, RB, Build America Bonds, Series C, 6.77%, 01/01/46		$	5,000			$	7,127,600
							17,520,640
Mississippi — 0.5%
Mississippi Development Bank, RB, Build America Bonds, Garvee, Series B, 6.41%, 01/01/40			5,000				6,563,150
Missouri — 1.8%
Missouri Joint Municipal Electric Utility Commission, RB, Build America Bonds, Plum Point Project, Series A, 7.73%, 01/01/39(b)			11,000				15,312,220
University of Missouri, RB, Build America Bonds, Curators of the University, Series A, 5.79%, 11/01/41(b)			7,000				9,028,880
							24,341,100
Nevada — 1.1%
City of North Las Vegas Nevada, GO, Build America Bonds, 6.57%, 06/01/40			1,420				1,575,660
County of Clark Nevada Department of Aviation, ARB, Build America Bonds:
Series B, 6.88%, 07/01/42(b)			10,000				10,070,100
Series C, 6.82%, 07/01/45			2,000				2,964,820
							14,610,580
New Jersey — 13.4%
County of Camden New Jersey Improvement Authority, LRB, Build America Bonds, Cooper Medical School of Rowan University Project, Series A, 7.75%, 07/01/34(b)			5,000				5,224,950
New Jersey EDA, RB:
Build America Bonds, Series CC-1, 6.43%, 12/15/35			6,385				6,574,571
Series A (NPFGC), 7.43%, 02/15/29(b)			20,974				25,922,606
New Jersey State Housing & Mortgage Finance Agency, RB, M/F Housing, Series C (AGM), 6.65%, 11/01/44			14,360				14,677,356
New Jersey State Turnpike Authority, RB, Build America Bonds:
Series A, 7.10%, 01/01/41(b)			34,000				49,412,540
Series F, 7.41%, 01/01/40			6,790				10,188,123
New Jersey Transportation Trust Fund Authority, RB, Build America Bonds:
Series B, 6.88%, 12/15/39			12,525				12,574,223
Series C, 5.75%, 12/15/28			4,500				5,008,275
Series C, 6.10%, 12/15/28(b)			45,900				47,500,074
							177,082,718

3

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN) (Percentages shown are based on Net Assets)

Security		Par (000)				Value
New York — 15.7%
City of New York, GO, Build America Bonds, Sub-Series C-1, 5.82%, 10/01/31(b)		$	15,000			$	15,629,400
City of New York Municipal Water Finance Authority, RB, Build America Bonds, 2nd General Resolution, Series DD, 6.45%, 06/15/41			6,300				6,554,457
City of New York Municipal Water Finance Authority, Refunding RB, Build America Bonds, 2nd General Resolution:
Series AA, 5.79%, 06/15/41(b)			25,000				25,828,750
Series CC, 6.28%, 06/15/42(b)			20,000				21,193,600
Series EE, 6.49%, 06/15/42			2,000				2,090,300
Series GG, 6.12%, 06/15/42			2,445				2,545,832
City of New York Transitional Finance Authority Future Tax Secured Revenue, RB, Build America Bonds, Future Tax Secured, Sub-Series B-1, 5.57%, 11/01/38(b)			19,000				22,925,020
County of Nassau New York Tobacco Settlement Corp., Refunding RB, Series A1, 6.83%, 06/01/21			9,231				9,152,191
Metropolitan Transportation Authority, RB, Build America Bonds:
6.67%, 11/15/39			2,220				2,979,573
7.34%, 11/15/39(b)			13,245				19,519,819
Series C-1, 6.69%, 11/15/40			13,000				17,458,740
Series E, 6.81%, 11/15/40			6,000				8,147,760
New York State Dormitory Authority, RB, Montefiore Obligated Group, Series B (AGM), 4.95%, 08/01/48			4,450				4,645,755
Port Authority of New York & New Jersey, ARB:
192nd Series, 4.81%, 10/15/65			14,825				17,444,133
Consolidated, 160th Series, 5.65%, 11/01/40			2,750				3,485,268
Consolidated, 168th Series, 4.93%, 10/01/51			3,860				4,618,953
State of New York Dormitory Authority, RB, Build America Bonds, General Purpose, Series H, 5.39%, 03/15/40(b)			15,000				17,791,800

Security		Par (000)				Value
New York (continued)
State of New York Dormitory Authority, Refunding RB, Touro College & University, Series B, 5.75%, 01/01/29		$	6,010			$	6,217,645
							208,228,996
Ohio — 7.0%
American Municipal Power, Inc., RB, Build America Bonds, Combined Hydroelectric Projects, Series B, 7.83%, 02/15/41			10,000				15,112,600
American Municipal Power, Inc., Refunding RB, Build America Bonds, Series B, 6.45%, 02/15/44			10,000				13,384,700
County of Franklin Ohio Convention Facilities Authority, RB, Build America Bonds, 6.64%, 12/01/42(b)			30,575				41,663,024
Mariemont City School District, GO, Refunding, Build America Bonds, Series B, 6.55%, 12/01/47(b)			10,055				10,518,736
Ohio University, RB, General Receipts, Athens, 5.59%, 12/01/14			10,100				11,777,105
							92,456,165
Oklahoma — 0.5%
Oklahoma Development Finance Authority, RB, OU Medicine Project, Series C, 5.45%, 08/15/28			1,529				1,665,677
Oklahoma Municipal Power Authority, RB, Build America Bonds, 6.44%, 01/01/45(b)			3,500				4,449,515
							6,115,192
Pennsylvania — 3.2%
Commonwealth Financing Authority, RB, Series A:
Plancon Program, 3.86%, 06/01/38			6,350				6,359,144
4.14%, 06/01/38			6,200				6,409,994
Pennsylvania Economic Development Financing Authority, RB, Build America Bonds, Series B, 6.53%, 06/15/39			23,050				29,202,737
							41,971,875
Puerto Rico — 1.2%
Puerto Rico Commonwealth Aqueduct & Sewer Authority, Refunding RB, Senior Lien, Series B:
5.00%, 07/01/23			850				820,250
5.35%, 07/01/27			15,525				14,826,375
							15,646,625

4

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN) (Percentages shown are based on Net Assets)

Security		Par (000)				Value
South Carolina — 1.8%
South Carolina Public Service Authority, RB:
Build America Bonds, Series C, 6.45%, 01/01/50		$	2,025			$	2,767,730
Build America Bonds, Series F (AGM), 6.45%, 01/01/50			11,290				15,665,778
Santee Cooper, Series F (AGM), 5.74%, 01/01/30			5,000				5,727,950
							24,161,458
Tennessee — 4.0%
County of Memphis-Shelby Tennessee Industrial Development Board, Refunding, Tax Allocation Bonds, Subordinate Tax Increment, Series C, 7.00%, 07/01/45			5,800				6,064,596
Metropolitan Government of Nashville & Davidson County Convention Center Authority, RB, Build America Bonds, Series A2, 7.43%, 07/01/43(b)			35,105				47,612,560
							53,677,156
Texas — 7.0%
City of Austin Texas, RB, Travis, Williams and Hays Counties, Rental Car Specialty Facilities, 5.75%, 11/15/42			10,000				10,651,800
City of San Antonio Texas Customer Facility Charge Revenue, RB, 5.87%, 07/01/45(b)			7,500				8,007,975
City of San Antonio Texas Public Service Board, RB, Build America Bonds, Electric & Gas Revenue, Series A, 6.17%, 02/01/41(b)			19,000				19,435,860
City of San Antonio Texas Public Service Board, Refunding RB, Build America Bonds, Electric & Gas Revenue, Series B, 6.31%, 02/01/37(b)			35,000				35,864,500
Dallas Area Rapid Transit, RB, Build America Bonds, Senior Lien, Series B, 5.02%, 12/01/48			2,500				3,040,100
Katy Texas ISD, GO, Build America Bonds, School Building, Series D (PSF-GTD), 6.35%, 02/15/41(b)			5,000				5,138,600

Security		Par (000)				Value
Texas (continued)
North Texas Municipal Water District, RB, Build America Bonds, Series A, 6.01%, 09/01/40		$	10,000			$	10,401,900
							92,540,735
Utah — 3.4%
County of Utah Utah, RB, Build America Bonds, County Excise Tax Revenue, Recovery Zone, Series C, 7.13%, 12/01/39			11,800				12,084,852
Utah Transit Authority, RB, Build America Bonds, Subordinated, 5.71%, 06/15/40(b)			26,405				33,310,436
							45,395,288
Virginia — 2.7%
Tobacco Settlement Financing Corp., Refunding RB, Series A-1, 6.71%, 06/01/46			38,895				36,327,930
Washington — 1.6%
Washington State Convention Center Public Facilities District, RB, Build America Bonds, Series B, 6.79%, 07/01/40			16,100				20,800,073
West Virginia — 4.6%
West Virginia Tobacco Settlement Finance Authority, RB, Series A, 7.47%, 06/01/47			39,700				39,314,116
West Virginia United Health System Obligated Group, Series 2018, 4.92%, 06/01/48			20,000				21,898,622
							61,212,738
Wisconsin — 0.5%
Public Finance Authority, RB, Settle Proton Center, Series A(a):
7.55%, 12/01/30			1,470				1,484,803
7.63%, 12/01/48			5,310				5,155,107
							6,639,910
Total Municipal Bonds — 149.2% (Cost — $1,704,163,645)							1,976,364,999
Total Long-Term Investments — 155.8% (Cost — $1,786,161,422)							2,064,642,081

5

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN) (Percentages shown are based on Net Assets)

Security		Shares				Value
Short-Term Securities — 0.2%
BlackRock Liquidity Funds, T-Fund, Institutional Class, 2.32%(d)(e)			2,344,573			$	2,344,573
Total Short-Term Securities — 0.2% (Cost — $2,344,573)							2,344,573
Total Investments — 156.0% (Cost — $1,788,505,995)							2,066,986,654
Liabilities in Excess of Other Assets — (56.0)%							(742,126,884	)
Net Assets Applicable to Common Shares — 100.0%						$	1,324,859,770

^(a)  Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.

^(b)  All or a portion of the security has been pledged as collateral in connection with outstanding reverse repurchase agreements.

^(c)  U.S. Government securities held in escrow, are used to pay interest on this security as well as to retire the bond in full at the date indicated, typically at a premium to par.

^(d)  Annualized 7-day yield as of period end.

^(e)  During the period ended April 30, 2019, investments in issuers considered to be an affiliate/affiliates of the Trust for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

Affiliate		Shares Held at 07/31/18				Net Activity				Shares Held at 04/30/19				Value at 04/30/19				Income				Net Realized Gain (Loss)(a)				Change in Unrealized Appreciation (Depreciation)
BlackRock Liquidity Funds, T-Fund, Institutional Class			10,666,421				(8,321,848	)			2,344,573			$	2,344,573			$	136,007			$	—			$	—

^(a)  Includes net capital gain distributions, if applicable.

Portfolio Abbreviations
AGM		Assured Guaranty Municipal Corp.
ARB		Airport Revenue Bonds
COP		Certificates of Participation
EDA		Economic Development Authority
GO		General Obligation Bonds
GTD		Guaranteed
HFA		Housing Finance Agency
ISD		Independent School District
LRB		Lease Revenue Bonds
NPFGC		National Public Finance Guarantee Corp.
PSF-GTD		Permanent School Fund Guaranteed
RB		Revenue Bonds

6

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN)

Reverse Repurchase Agreements

Counterparty

Interest Rate

Trade Date

Maturity Date (a)

Face Value

Face Value Including Accrued Interest

Type of Non-Cash Underlying Collateral

Remaining Contractual Maturity of the Agreements (a)

Barclays Bank PLC

2.70

%

11/15/18

Open

$

21,878,750

$

22,151,140

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

4,750,000

4,809,137

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

159,844

161,834

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

16,625,000

16,831,981

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

9,212,894

9,327,594

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

7,778,750

7,875,595

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

11,825,000

11,972,221

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

27,987,263

28,335,704

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

19,165,569

19,404,180

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.70

11/15/18

Open

13,901,250

14,074,321

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

12/03/18

Open

3,934,350

3,979,597

Municipal Bonds

Open/Demand

Barclays Bank PLC

2.55

12/13/18

Open

9,570,000

9,663,547

Corporate Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.67

01/02/19

Open

2,907,000

2,932,657

Corporate Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

02/19/19

Open

7,559,400

7,600,697

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

02/28/19

Open

4,915,500

4,939,373

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

29,380,000

29,459,122

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

24,282,500

24,347,894

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

31,411,100

31,495,692

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

46,212,800

46,337,254

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

10,018,000

10,044,979

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

7,525,500

7,545,767

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

17,398,500

17,445,355

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

21,889,900

21,948,851

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

16,810,500

16,855,772

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

21,318,000

21,375,411

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

29,092,800

29,171,149

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.77

03/26/19

Open

19,994,000

20,047,845

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

03/26/19

Open

9,457,000

9,482,928

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

03/26/19

Open

25,012,000

25,080,575

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

03/26/19

Open

13,620,600

13,657,943

Municipal Bonds

Open/Demand

7

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN)

Reverse Repurchase Agreements (continued)

Counterparty

Interest Rate

Trade Date

Maturity Date (a)

Face Value

Face Value Including Accrued Interest

Type of Non-Cash Underlying Collateral

Remaining Contractual Maturity of the Agreements (a)

Mitsubishi UFJ Securities (USA) Inc.

2.82

%

03/26/19

Open

$

5,796,000

$

5,811,891

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

03/26/19

Open

43,466,400

43,585,570

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

03/26/19

Open

18,350,200

18,400,510

Municipal Bonds

Open/Demand

Mitsubishi UFJ Securities (USA) Inc.

2.82

03/26/19

Open

2,782,400

2,790,028

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

34,562,500

34,620,968

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

29,550,000

29,599,989

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

25,904,531

25,948,353

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

27,919,937

27,967,169

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

37,030,000

37,092,642

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

21,052,500

21,088,114

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/09/19

Open

37,687,500

37,751,255

Municipal Bonds

Open/Demand

RBC Capital Markets LLC

2.90

04/10/19

Open

7,325,000

7,336,801

Municipal Bonds

Open/Demand

$

777,020,738

$

780,349,405

^(a)  Certain agreements have no stated maturity and can be terminated by either party at any time.

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

Description		Number of Contracts				Expiration Date				Notional Amount (000)				Value/ Unrealized Appreciation (Depreciation)
Short Contracts:
10-Year U.S. Treasury Note			663				06/19/19			$	81,994			$	(199,114	)
Long U.S. Treasury Bond			1,429				06/19/19				210,733				73,049
5-Year U.S. Treasury Note			81				06/28/19				9,367				(59,612	)
														$	(185,677	)

8

Schedule of Investments  (unaudited) (continued) April 30, 2019 BlackRock Taxable Municipal Bond Trust (BBN)

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

• Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that Trust has the ability to access

• Level 2 — Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market-corroborated inputs)

• Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including Trust’s own assumptions used in determining the fair value of investments and derivative financial instruments)

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the BlackRock Global Valuation Methodologies Committee (the “Global Valuation Committee”) in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Trust’s policy regarding valuation of investments and derivative financial instruments, refer to the Trust’s most recent financial statements as contained in its semi-annual report.

The following tables summarize the Trust’s investments and derivative financial instruments categorized in the disclosure hierarchy:

		Level 1				Level 2				Level 3				Total
Assets:
Investments:
Long-Term Investments(a)		$	—			$	2,064,642,081			$	—			$	2,064,642,081
Short-Term Securities			2,344,573				—				—				2,344,573
		$	2,344,573			$	2,064,642,081			$	—			$	2,066,986,654
Derivative Financial Instruments(b)
Assets:
Interest rate contracts		$	73,049			$	—			$	—			$	73,049
Liabilities:
Interest rate contracts			(258,726	)			—				—				(258,726	)
		$	(185,677	)		$	—			$	—			$	(185,677	)

^(a)  See above Schedule of Investments for values in each industry, state or political sub division.

^(b)  Derivative financial instruments are futures contracts which are valued at the unrealized appreciation (depreciation) on the instrument.

The Trust may hold assets and/or liabilities in which the fair value approximates the carrying amount for financial reporting purposes. As of period end, such assets and/or liabilities are categorized within the disclosure hierarchy as follows:

		Level 1				Level 2				Level 3				Total
Liabilities:
Reverse repurchase agreements		$	—			$	(780,349,405	)		$	—			$	(780,349,405	)
		$	—			$	(780,349,405	)		$	—			$	(780,349,405	)

9