Companies: 10,795·Total market cap: $144.5T
BlackRock MuniYield Quality Fund III, Inc.

BlackRock MuniYield Quality Fund III, Inc.

MYINYSEFinancial Services● Active
$10.77
$-0.06(-0.55%)
Market Cap$715852293
P/E Ratio
52W High$11.46
52W Low$10.2
SEC Filings

BlackRock MuniYield Quality Fund III, Inc. (MYI) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0000883412 · MYI · NYSE · as of Jun 10, 2026

Filing snapshot

522
Total Filings
DEF 14A
Latest Form
2026-06-02
Most Recent
1992
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0000883412 · Updated hourly · Not investment advice

Latest Key Filings

10-QQuarterly Report

No recent filings

8-KCurrent Report
8-K
2025-01-21Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
DEF 14AProxy Statement
CLASSIFIED FUND N&P
2026-06-02
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-05-15
View
N-CSRSN-CSRS
BLACKROCK MUNIYIELD QUALITY FUND III, INC.
2026-04-07
View
NPORT-PNPORT-P
NPORT-P
2026-03-26
View
SCHEDULE 13D/ASCHEDULE 13D/A
SCHEDULE 13D/A
2026-03-09
View
N-23C-2N-23C-2
BLACKROCK MUNIYIELD QUALITY FUND III, INC [MYI]
2026-02-27
View
425425
MUNIVEST FUND, INC. (MVF/MYI) - 425
2026-02-23
View
425425
MUNIVEST FUND II, INC. (MVT/MYI) - 425
2026-02-23
View
40-17G40-17G
FIDELITY BOND - 40-17G
2026-01-23
View
NPORT-PNPORT-P
NPORT-P
2025-12-29
View
424B3424B3
BLACKROCK MUNIYIELD QUALITY FUND III, INC.
2025-10-14
View
DEFA14AProxy Statement (Additional)
BLACKROCK MUNIYIELD QUALITY FUND III, INC
2025-10-14
View
N-CENN-CEN
N-CEN
2025-10-14
View
DEFA14AProxy Statement (Additional)
BLACKROCK MUNIYIELD QUALITY FUND III, INC. MYI
2025-10-06
View
N-CSRN-CSR
BLACKROCK MUNIYIELD QUALITY FUND III, INC.
2025-10-03
View
Showing 1–15 of 458 filingsForm 4 / 144 hidden· 522 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0000883412  |  Exchange: NYSE · Financial Services

BlackRock MuniYield Quality Fund III, Inc. (NYSE: MYI) has submitted 522 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 1992. As a Financial Services sector company with CIK 0000883412, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is BlackRock MuniYield Quality Fund III, Inc.'s most comprehensive regulatory disclosure. The most recent BlackRock MuniYield Quality Fund III, Inc. 10-K was filed on — for fiscal year ending —. Historical MYI 10-K annual reports are available from 1994 through —.

Investors researching BlackRock MuniYield Quality Fund III, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-10

Frequently Asked Questions

MYI SEC Filings · 8 questions

BlackRock MuniYield Quality Fund III, Inc. (MYI) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 522 filings and access original documents at no cost. BlackRock MuniYield Quality Fund III, Inc.'s CIK is 0000883412.

MYI SEC filingsBlackRock MuniYield Quality Fund III, Inc. SEC documentsfind MYI 10-K