Security Snapshot

PIONEER MUNICIPAL HIGH INCOME FUND, INC. - Common Shares, $0.001 par value (MHI) Institutional Ownership

CUSIP: 723763108

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Latest Period

n/a

Institutions Reporting

Shares (Excl. Options)

Price

$8.90

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Shares outstanding
22,757,370
SEC-reported price per share
$8.90
Insider filing price
$8.90
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • MHI - PIONEER MUNICIPAL HIGH INCOME FUND, INC. - Common Shares, $0.001 par value is tracked under CUSIP 723763108.
  • Latest finished 13F holder period is not available.
  • 2 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 2 to 0 between Q3 2025 and Q4 2025.
  • SEC-reported value moved from $1,121,156 to $0.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Schedule 13D/G

Ownership context comes from Schedule 13D/G and available holder history for this CUSIP.

Open SEC evidence

Security key

723763108

Latest holder period

n/a

13F holders

13D/G owners

2

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
2
Security
MHI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
SIT INVESTMENT ASSOCIATES INC 12% $23,946,713 2,614,270 Sit Investment Associates, Inc. 31 Jul 2025
RIVERNORTH CAPITAL MANAGEMENT, LLC 4.4% -49% $9,192,976 -$8,243,121 1,003,600 -47% RIVERNORTH CAPITAL MANAGEMENT, LLC 30 Jun 2025

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
48
Latest
n/a
Rows shown
1-25 of 48
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 0 $0 -$1,121,156 $8.90 0
2025 Q3 125,303 $1,121,156 -$127,555,953 $8.96 2
2025 Q2 14,054,386 $128,731,624 -$1,985,278 $9.16 56
2025 Q1 14,276,690 $131,596,446 +$3,887,654 $9.20 58
2024 Q4 13,874,253 $128,490,573 +$9,300,963 $9.26 54
2024 Q3 12,777,252 $122,614,588 +$1,206,811 $9.60 48
2024 Q2 12,680,039 $115,891,590 +$11,443,074 $9.14 51
2024 Q1 11,432,373 $101,042,938 +$6,508,170 $8.84 54
2023 Q4 10,726,358 $92,555,198 +$1,776,358 $8.63 60
2023 Q3 9,648,876 $69,752,619 +$12,907,273 $7.23 64
2023 Q2 7,858,263 $67,039,624 +$6,113,699 $8.53 63
2023 Q1 7,140,345 $63,451,285 +$3,258,780 $8.89 63
2022 Q4 6,770,345 $58,095,357 -$7,026,979 $8.58 55
2022 Q3 7,625,407 $62,622,000 -$1,863,356 $8.21 66
2022 Q2 7,819,784 $72,694,000 +$12,339,553 $9.28 65
2022 Q1 7,144,914 $74,929,255 +$9,709,249 $10.50 64
2021 Q4 6,152,464 $75,232,000 +$7,636,213 $12.23 61
2021 Q3 5,528,591 $67,063,000 +$3,946,128 $12.13 50
2021 Q2 5,201,093 $67,503,000 -$3,596,074 $12.98 50
2021 Q1 5,481,199 $67,803,932 -$892,109 $12.37 54
2020 Q4 5,167,882 $64,288,374 -$878,475 $12.44 49
2020 Q3 5,078,788 $58,809,163 +$2,762,787 $11.58 49
2020 Q2 4,854,190 $54,839,000 +$1,107,274 $11.29 56
2020 Q1 4,574,474 $51,744,000 +$3,876,422 $11.32 58
2019 Q4 4,423,793 $53,429,000 +$5,205,690 $12.08 54
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