Pioneer Municipal High Income Fund, Inc.
 
Ticker Symbol: MHI
Schedule of Investments  |  7/31/24
(unaudited) 
Principal
Amount
USD ($) 		          Value
  UNAFFILIATED ISSUERS — 122.6%  
  Municipal Bonds — 120.7% of Net Assets(a)  
  Alabama — 0.6%  
1,250,000 Mobile County Industrial Development Authority, Calvert LLC Project, Series A, 5.00%, 6/1/54 $  1,285,350
  Total Alabama   $1,285,350
  Arizona — 0.9%  
2,220,000 Industrial Development Authority of the City of Phoenix, 3rd & Indian School Assisted Living Project, 5.40%, 10/1/36 $  2,005,082
  Total Arizona   $2,005,082
  Arkansas — 4.5%  
10,200,000 Arkansas Development Finance Authority, Green Bond, 5.45%, 9/1/52 $ 10,325,154
  Total Arkansas  $10,325,154
  California — 6.0%  
10,000,000(b) California County Tobacco Securitization Agency, Capital Appreciation, Stanislaus County, Subordinated, Series A, 6/1/46 $  2,708,400
2,200,000(c) California Infrastructure & Economic Development Bank, Brightline West Passenger Rail Project, Series A-4, 8.00%, 1/1/50 (144A)   2,226,334
750,000 California Municipal Finance Authority, Westside Neighborhood School Project, 6.375%, 6/15/64 (144A)      814,935
300,000 California School Finance Authority, Envision Education – Obligated Group, Series A, 5.00%, 6/1/54 (144A)      305,445
1,400,000 California Statewide Communities Development Authority, Lancer Plaza Project, 5.625%, 11/1/33   1,401,176
2,000,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, 5.50%, 12/1/58 (144A)   2,065,180
4,000,000 San Diego County Regional Airport Authority, Private Activity, Series B, 5.25%, 7/1/58   4,301,120
  Total California  $13,822,590
  Colorado — 2.6%  
1,000,000 Aerotropolis Regional Transportation Authority, 4.375%, 12/1/52 $    889,520
1Pioneer Municipal High Income Fund, Inc. | 7/31/24
Principal
Amount
USD ($) 		          Value
  Colorado — (continued)  
2,450,000 Dominion Water & Sanitation District, 5.875%, 12/1/52 $  2,464,382
2,500,000 Nine Mile Metropolitan District, 5.125%, 12/1/40   2,545,825
  Total Colorado   $5,899,727
  District of Columbia — 5.1%  
500,000 District of Columbia, Union Market Project, Series A, 5.125%, 6/1/34 (144A) $    502,755
500,000(c) District of Columbia, Union Market Project, Series B, 6/1/49 (144A)      285,140
5,025,000 District of Columbia Tobacco Settlement Financing Corp., Asset-Backed, 6.75%, 5/15/40   5,192,785
10,000,000(b) District of Columbia Tobacco Settlement Financing Corp., Capital Appreciation, Asset-Backed, Series A, 6/15/46   2,241,000
3,250,000 Washington Metropolitan Area Transit Authority Dedicated Revenue, Climate Transition Bonds, Series A, 5.25%, 7/15/59   3,558,490
  Total District of Columbia  $11,780,170
  Florida — 3.4%  
3,220,000 City of Tampa, Hospital Revenue Bonds (H. Lee Moffit Cancer Center Project), Series B, 4.00%, 7/1/45 $  3,044,156
2,000,000 Florida Development Finance Corp., Brightline Florida Passenger Rail Project, 5.50%, 7/1/53   2,079,300
1,000,000(c) Florida Development Finance Corp., Brightline Florida Passenger Rail Project, 12.00%, 7/15/32 (144A)   1,063,260
500,000 Florida Development Finance Corp., The Henry Project, Series A-1, 5.25%, 6/1/54 (144A)      512,355
1,000,000 Florida Development Finance Corp., The Henry Project, Series B, 6.50%, 6/1/59 (144A)   1,026,920
  Total Florida   $7,725,991
  Georgia — 4.4%  
10,000,000 Brookhaven Development Authority, Children's Healthcare Of Atlanta, Inc., Series A, 4.00%, 7/1/44 $ 10,007,000
  Total Georgia  $10,007,000
  Idaho — 2.2%  
5,000,000 Power County Industrial Development Corp., FMC Corp. Project, 6.45%, 8/1/32 $  5,014,400
  Total Idaho   $5,014,400
  Illinois — 6.4%  
2,000,000(d) Chicago Board of Education, Series A, 5.00%, 12/1/47 $  2,050,660
Pioneer Municipal High Income Fund, Inc. | 7/31/242
Schedule of Investments  |  7/31/24
(unaudited) (continued)
Principal
Amount
USD ($) 		          Value
  Illinois — (continued)  
2,000,000(d) Chicago Board of Education, Series H, 5.00%, 12/1/46 $  2,008,220
704,519(b)(e) Illinois Finance Authority, Cabs Clare Oaks Project, Series B-1, 11/15/52       28,181
1,116,010(c)(e) Illinois Finance Authority, Clare Oaks Project, Series A-3, 4.00%, 11/15/52      725,406
3,500,000 Illinois Finance Authority, The Admiral at the Lake Project, 5.25%, 5/15/42   2,691,745
4,000,000 Illinois Finance Authority, The Admiral at the Lake Project, 5.50%, 5/15/54   2,915,000
915,000 Illinois Housing Development Authority, Series B, 2.15%, 10/1/41 (GNMA FNMA FHLMC COLL Insured)      650,281
2,000,000 Metropolitan Pier & Exposition Authority, McCormick Place Expansion, 4.00%, 6/15/50   1,893,020
1,205,000 Metropolitan Pier & Exposition Authority, McCormick Place Expansion, 5.00%, 6/15/57   1,216,773
695,000(e) Southwestern Illinois Development Authority, Village of Sauget Project, 5.625%, 11/1/26     486,500
  Total Illinois  $14,665,786
  Indiana — 1.8%  
2,000,000 City of Evansville, Silver Birch Evansville Project, 5.45%, 1/1/38 $  1,899,720
1,500,000 City of Mishawaka, Silver Birch Mishawaka Project, 5.375%, 1/1/38 (144A)   1,304,520
1,000,000 Indiana Finance Authority, Multipurpose Educational Facilities, Avondale Meadows Academy Project, 5.375%, 7/1/47   1,002,430
  Total Indiana   $4,206,670
  Iowa — 4.2%  
9,675,000 Iowa Finance Authority, Alcoa Inc. Projects, 4.75%, 8/1/42 $  9,667,066
  Total Iowa   $9,667,066
  Maine — 1.3%  
3,000,000 Maine Health & Higher Educational Facilities Authority, Series A, 4.00%, 7/1/50 $  2,881,740
  Total Maine   $2,881,740
  Maryland — 1.1%  
3,000,000 Maryland State Transportation Authority, Series A, 3.00%, 7/1/47 $  2,422,140
  Total Maryland   $2,422,140
3Pioneer Municipal High Income Fund, Inc. | 7/31/24
Principal
Amount
USD ($) 		          Value
  Massachusetts — 7.3%  
2,500,000 Massachusetts Development Finance Agency, Series A, 5.00%, 7/1/44 $  2,513,275
3,000,000 Massachusetts Development Finance Agency, Lowell General Hospital, Series G, 5.00%, 7/1/44   3,000,090
7,100,000 Massachusetts Development Finance Agency, WGBH Educational Foundation, Series A, 5.75%, 1/1/42 (AMBAC Insured)   8,943,018
2,270,000(d) Town of Millbury, 4.00%, 8/15/51   2,177,293
  Total Massachusetts  $16,633,676
  Michigan — 0.4%  
970,000 David Ellis Academy-West, 5.25%, 6/1/45 $    893,768
  Total Michigan     $893,768
  Minnesota — 0.4%  
1,000,000 City of Ham Lake, DaVinci Academy, Series A, 5.00%, 7/1/47 $    966,570
  Total Minnesota     $966,570
  Montana — 0.0%†  
1,600,000(e) Two Rivers Authority, 7.375%, 11/1/27 $     64,000
  Total Montana      $64,000
  New Hampshire — 3.0%  
375,000 New Hampshire Health and Education Facilities Authority Act, Catholic Medical Centre, 3.75%, 7/1/40 $    319,132
6,000,000 New Hampshire Health and Education Facilities Authority Act, Dartmouth Health, Series A, 5.00%, 8/1/59 (BAM-TCRS Insured)   6,528,540
  Total New Hampshire   $6,847,672
  New Jersey — 1.0%  
2,200,000 New Jersey Economic Development Authority, Continental Airlines, 5.75%, 9/15/27 $  2,204,356
  Total New Jersey   $2,204,356
  New Mexico — 1.0%  
2,540,000(c) County of Otero, Otero County Jail Project, Certificate Participation, 9.00%, 4/1/28 $  2,400,300
  Total New Mexico   $2,400,300
  New York — 18.0%  
2,000,000 Erie Tobacco Asset Securitization Corp., Asset-Backed, Series A, 5.00%, 6/1/45 $  1,897,000
Pioneer Municipal High Income Fund, Inc. | 7/31/244
Schedule of Investments  |  7/31/24
(unaudited) (continued)
Principal
Amount
USD ($) 		          Value
  New York — (continued)  
6,175,000 Metropolitan Transportation Authority, Green Bond, Series C-1, 4.75%, 11/15/45 $  6,394,027
2,000,000 Metropolitan Transportation Authority, Green Bond, Series C-1, 5.25%, 11/15/55   2,104,240
2,000,000 Metropolitan Transportation Authority, Green Bond, Series D-2, 4.00%, 11/15/48   1,914,740
2,500,000 New York Counties Tobacco Trust IV, Settlement pass through, Series A, 5.00%, 6/1/45   2,314,000
2,500,000 New York Transportation Development Corp., Series A, 5.25%, 1/1/50   2,501,025
11,330,000 New York Transportation Development Corp., Delta Airlines Inc-LaGuardia, 5.00%, 10/1/40  11,848,801
1,750,000 New York Transportation Development Corp., Green Bond, 5.375%, 6/30/60   1,809,552
5,500,000 New York Transportation Development Corp., Green Bond, 5.50%, 6/30/60   5,850,295
1,000,000 Suffolk Regional Off-Track Betting Co., 6.00%, 12/1/53   1,049,500
2,500,000 Triborough Bridge & Tunnel Authority Sales Tax Revenue, Series A-1, 5.25%, 5/15/59   2,750,850
1,000,000 Westchester County Local Development Corp., Purchase Senior Learning Community, Inc. Project, 4.50%, 7/1/56 (144A)     887,080
  Total New York  $41,321,110
  North Carolina — 0.6%  
1,400,000 North Carolina Medical Care Commission, Carolina Meadows, 5.25%, 12/1/49 $  1,494,262
  Total North Carolina   $1,494,262
  Ohio — 6.4%  
13,375,000 Buckeye Tobacco Settlement Financing Authority, Senior Class 2, Series B-2, 5.00%, 6/1/55 $ 12,386,186
1,000,000 Ohio Housing Finance Agency, Sanctuary Springboro Project, 5.45%, 1/1/38 (144A)      840,210
1,540,000 State of Ohio, 5.00%, 12/31/39   1,549,286
  Total Ohio  $14,775,682
  Oregon — 1.6%  
5,000,000 Oregon Health & Science University, Green Bond, Series A, 3.00%, 7/1/51 $  3,772,050
  Total Oregon   $3,772,050
5Pioneer Municipal High Income Fund, Inc. | 7/31/24
Principal
Amount
USD ($) 		          Value
  Pennsylvania — 5.0%  
1,250,000 Allentown Neighborhood Improvement Zone Development Authority, Waterfront - 30 E. Allen Street Project, Series A, 5.25%, 5/1/32 (144A) $  1,317,988
5,000,000 Montgomery County Higher Education and Health Authority, Thomas Jefferson University, Series B, 4.00%, 5/1/52   4,645,200
3,500,000 Montgomery County Higher Education and Health Authority, Thomas Jefferson University, Series B, 5.00%, 5/1/57   3,624,740
500,000 Philadelphia Authority for Industrial Development, 5.50%, 6/1/49 (144A)      501,735
1,000,000 Philadelphia Authority for Industrial Development, Global Leadership Academy Charter School Project, Series A, 5.00%, 11/15/50      871,180
460,000 Philadelphia Authority for Industrial Development, Greater Philadelphia Health Action, Inc., Project, Series A, 6.625%, 6/1/50     454,475
  Total Pennsylvania  $11,415,318
  Puerto Rico — 14.2%  
2,929,538(c) Commonwealth of Puerto Rico, 11/1/43 $  1,794,342
5,267,777(d) Commonwealth of Puerto Rico, Restructured Series A-1, 4.00%, 7/1/41   4,935,907
3,000,000(d) Commonwealth of Puerto Rico, Restructured Series A-1, 4.00%, 7/1/46   2,742,000
5,000,000 GDB Debt Recovery Authority of Puerto Rico, 7.50%, 8/20/40   4,850,000
7,500,000 Puerto Rico Commonwealth Aqueduct & Sewer Authority, Series A, 5.00%, 7/1/47 (144A)   7,546,725
2,500,000 Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, Series 2, 4.784%, 7/1/58   2,470,375
8,191,000 Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, Series A-1, 5.00%, 7/1/58   8,225,238
  Total Puerto Rico  $32,564,587
  Rhode Island — 1.0%  
5,900,000(e) Central Falls Detention Facility Corp., 7.25%, 7/15/35 $  2,360,000
  Total Rhode Island   $2,360,000
Pioneer Municipal High Income Fund, Inc. | 7/31/246
Schedule of Investments  |  7/31/24
(unaudited) (continued)
Principal
Amount
USD ($) 		          Value
  Tennessee — 0.3%  
550,000 Knox County Health Educational & Housing Facility Board, University of Tennessee Project, Series B-1, 5.25%, 7/1/64 (BAM Insured) $    580,795
  Total Tennessee     $580,795
  Texas — 7.6%  
450,000 Arlington Higher Education Finance Corp., Basis Texas Charter Schools, Inc., 4.875%, 6/15/54 (144A) $    450,410
300,000 Arlington Higher Education Finance Corp., Great Hearts America, Series A, 5.00%, 8/15/54      300,987
500,000 Arlington Higher Education Finance Corp., LTTS Charter School, Universal Academy, 5.45%, 3/1/49 (144A)      528,875
1,000,000 Arlington Higher Education Finance Corp., Universal Academy, Series A, 7.00%, 3/1/34   1,001,570
3,000,000(d) Cedar Hill Independent School District, Dallas County, Texas, 4.00%, 2/15/50 (PSF-GTD Insured)   2,878,230
8,000,000 City of Houston Airport System Revenue, 4.00%, 7/15/41   7,600,160
2,500,000 Greater Texas Cultural Education Facilities Finance Corp., Texas Bipmedical Research Institute Project, Series A, 5.25%, 6/1/54   2,638,900
1,500,000 New Hope Cultural Education Facilities Finance Corp., Sanctuary LTC Project, Series A-1, 5.50%, 1/1/57   1,426,545
550,000 Port of Beaumont Navigation District, Jefferson Gulf Coast Energy Project, Series A, 5.125%, 1/1/44 (144A)     556,187
  Total Texas  $17,381,864
  Virgin Islands — 0.4%  
1,000,000 Matching Fund Special Purpose Securitization Corp., Series A, 5.00%, 10/1/39 $  1,037,180
  Total Virgin Islands   $1,037,180
  Virginia — 7.0%  
2,650,000 Tobacco Settlement Financing Corp., Series A-1, 6.706%, 6/1/46 $  2,307,567
2,000,000 Virginia Small Business Financing Authority, Senior Lien, 5.00%, 12/31/42   2,087,540
1,000,000 Virginia Small Business Financing Authority, Senior Lien, 5.00%, 12/31/47   1,000,800
1,000,000 Virginia Small Business Financing Authority, Senior Lien 95 Express Lanes LLC Project, 4.00%, 1/1/48      926,830
7Pioneer Municipal High Income Fund, Inc. | 7/31/24
Principal
Amount
USD ($) 		          Value
  Virginia — (continued)  
3,500,000 Virginia Small Business Financing Authority, Transform 66-P3 Project, 5.00%, 12/31/49 $  3,499,790
6,100,000 Virginia Small Business Financing Authority, Transform 66-P3 Project, 5.00%, 12/31/56   6,121,777
  Total Virginia  $15,944,304
  Wisconsin — 1.0%  
1,500,000 Public Finance Authority, Gardner Webb University, 5.00%, 7/1/31 (144A) $  1,559,250
750,000 Public Finance Authority, Roseman University Health Sciences Project, 5.875%, 4/1/45     756,488
  Total Wisconsin   $2,315,738
  Total Municipal Bonds
(Cost $273,861,850) 		$276,682,098
  U.S. Government and Agency
Obligations — 1.9% of Net Assets 		 
4,300,000(b) U.S. Treasury Bills, 8/13/24 $  4,292,429
  Total U.S. Government and Agency Obligations
(Cost $4,292,464) 		  $4,292,429
  TOTAL INVESTMENTS IN UNAFFILIATED ISSUERS — 122.6%
(Cost $278,154,314) 		$280,974,527
  OTHER ASSETS AND LIABILITIES — (22.6)% $(51,712,666)
  net assets applicable to common stockholders — 100.0% $229,261,861
             
AMBAC Ambac Assurance Corporation.
BAM Build America Mutual Assurance Company.
COLL Collateral.
FHLMC Federal Home Loan Mortgage Corporation.
FNMA Federal National Mortgage Association.
GNMA Government National Mortgage Association.
PSF-GTD Permanent School Fund Guaranteed.
TCRS Transferable Custodial Receipts.
Pioneer Municipal High Income Fund, Inc. | 7/31/248
Schedule of Investments  |  7/31/24
(unaudited) (continued)
(144A) The resale of such security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers. At July 31, 2024, the value of these securities amounted to $24,295,304, or 10.6% of net assets applicable to common stockholders.
(a) Consists of Revenue Bonds unless otherwise indicated.
(b) Security issued with a zero coupon. Income is recognized through accretion of discount.
(c) The interest rate is subject to change periodically. The interest rate and/or reference index and spread shown at July 31, 2024.
(d) Represents a General Obligation Bond.
(e) Security is in default.
† Amount rounds to less than 0.1%.
The concentration of investments as a percentage of total investments by type of obligation/market sector is as follows:
Revenue Bonds:  
Development Revenue 25.5%
Health Revenue 21.0
Transportation Revenue 18.8
Tobacco Revenue 10.3
Other Revenue 8.0
Education Revenue 4.1
Water Revenue 3.6
Facilities Revenue 1.7
General Revenue 0.4
  93.4%
General Obligation Bonds: 6.6%
  100.0%
FUTURES CONTRACTS
FIXED INCOME INDEX FUTURES CONTRACTS
Number of
Contracts
Long 		Description Expiration
Date 		Notional
Amount 		Market
Value 		Unrealized
Appreciation
87 U.S. Long Bond (CBT) 9/19/24 $10,168,581 $10,507,969 $339,388
TOTAL FUTURES CONTRACTS $10,168,581 $10,507,969 $339,388
CBT Chicago Board of Trade.
9Pioneer Municipal High Income Fund, Inc. | 7/31/24
Various inputs are used in determining the value of the Fund’s investments. These inputs are summarized in the three broad levels below.
Level 1 – unadjusted quoted prices in active markets for identical securities.
Level 2 – other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risks, etc.).
Level 3 – significant unobservable inputs (including the Adviser’s own assumptions in determining fair value of investments).
The following is a summary of the inputs used as of July 31, 2024 in valuing the Fund’s investments:
  Level 1 Level 2 Level 3 Total
Municipal Bonds $— $276,682,098 $— $276,682,098
U.S. Government and Agency Obligations — 4,292,429 — 4,292,429
Total Investments in Securities $— $280,974,527 $— $280,974,527
Other Financial Instruments        
Net unrealized appreciation on futures contracts $339,388 $— $— $339,388
Total Other Financial Instruments $339,388 $— $— $339,388
During the six months ended July 31, 2024, there were no transfers in or out of Level 3.
Pioneer Municipal High Income Fund, Inc. | 7/31/2410
Pioneer Municipal High I... (NYSE:MHI)
Historical Stock Chart
Von Okt 2024 bis Nov 2024 Click Here for more Pioneer Municipal High I... Charts.
Pioneer Municipal High I... (NYSE:MHI)
Historical Stock Chart
Von Nov 2023 bis Nov 2024 Click Here for more Pioneer Municipal High I... Charts.