Blackrock MuniYield Quality Fund III, Inc MYI

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Blackrock MuniYield Quality Fund III, Inc Common Stock · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 10.24 → 10.84 · 5.9%
11.30010.77010.240 1 2 3 4 5 6,7 8 9 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 22 Jul 2025 — 23 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
10.8500 10.8799 10.7900 10.8400 321,044
10.9200 10.9300 10.8200 10.8600 267,700
10.9400 10.9400 10.9000 10.9100 111,900
Weekend
Weekend
10.9800 10.9800 10.9100 10.9100 254,100
11.0200 11.0200 10.9500 10.9600 210,200
11.0500 11.0700 11.0000 11.0000 210,100
11.0400 11.1000 11.0000 11.0700 294,800
11.0100 11.0100 10.9600 10.9900 341,500
Weekend
Weekend
11.0500 11.0600 10.9700 11.0000 225,600
11.0000 11.0400 10.9200 11.0200 433,500
10.9900 11.0200 10.9300 10.9700 372,000
9 · DEFA14A After-hours · 17:24 ET DEFA14A ↗
11.0800 11.0900 10.9600 10.9600 401,700
11.1200 11.1300 11.0600 11.0700 319,200
Weekend
Weekend
No trading
11.1400 11.1800 11.1100 11.1200 288,400
11.1500 11.1600 11.1000 11.1100 349,600
11.1800 11.2100 11.1000 11.1100 282,400
11.1100 11.1900 11.1000 11.1500 330,300
Weekend
Weekend
11.0000 11.0700 11.0000 11.0600 246,300
11.0200 11.0500 10.9500 10.9900 313,700
11.0300 11.0400 10.9800 11.0200 327,800
10.9200 11.0300 10.9200 11.0300 219,200
10.9700 10.9800 10.9200 10.9300 115,500
Weekend
Weekend
No trading
10.9500 10.9800 10.9100 10.9800 253,100
10.9500 10.9700 10.8800 10.9000 202,800
10.9000 10.9600 10.8900 10.9300 219,800
10.9800 10.9800 10.8700 10.9100 280,300
Weekend
Weekend
10.9900 10.9900 10.9300 10.9500 112,000
11.0000 11.0200 10.9300 10.9900 203,700
10.9300 11.0200 10.9300 10.9600 393,500
10.8300 10.9500 10.8200 10.9500 322,100
10.8400 10.8700 10.7700 10.7700 312,400
Weekend
Weekend
10.8900 10.8900 10.7900 10.8300 319,500
10.9100 10.9600 10.9100 10.9100 320,500
10.9400 10.9500 10.8400 10.9100 348,000
8 · DEF 14A After-hours · 16:34 ET CLASSIFIED FUND N&P ↗
10.9300 10.9800 10.8800 10.9300 460,300
11.0000 11.0000 10.9000 10.9300 306,700
Weekend
Weekend
10.9500 11.0000 10.9400 11.0000 217,700
10.9400 10.9500 10.9000 10.9500 187,000
10.8700 10.9700 10.8300 10.9200 364,800
10.7600 10.8400 10.7100 10.8400 292,600
No trading
Weekend
Weekend
10.7400 10.7700 10.6400 10.6800 228,200
10.7200 10.7300 10.6500 10.6800 227,000
10.5900 10.7300 10.5700 10.7200 258,400
10.5800 10.6400 10.5800 10.5900 240,100
10.7500 10.7900 10.6500 10.6600 276,500
Weekend
Weekend
10.7500 10.8200 10.7400 10.7600 257,600
10.9300 10.9400 10.8800 10.9100 135,100
10.9400 10.9500 10.8700 10.9000 191,400
10.9600 11.0000 10.9300 10.9500 206,300
11.0400 11.0500 11.0000 11.0300 154,100
Weekend
Weekend
11.0400 11.0400 11.0100 11.0300 127,400
11.0400 11.0500 10.9800 11.0200 309,900
10.9600 11.0700 10.9000 11.0100 431,800
10.7500 10.9300 10.7400 10.9100 310,200
10.7700 10.8000 10.7000 10.7300 456,900
Weekend
Weekend
10.8500 10.8500 10.7500 10.8000 358,300
10.8000 10.8600 10.7600 10.8000 590,700
10.8000 10.8300 10.7400 10.7600 361,700
10.8800 10.8800 10.7800 10.8200 446,700
10.9400 10.9400 10.8400 10.9000 417,800
Weekend
Weekend
10.9300 10.9300 10.8300 10.9100 321,000
10.9900 11.0200 10.8900 10.9000 236,200
10.9700 10.9900 10.8600 10.9700 365,900
11.0400 11.0500 10.9600 10.9600 198,400
11.0600 11.0700 11.0000 11.0200 166,700
Weekend
Weekend
11.0500 11.0700 11.0000 11.0500 224,700
11.0500 11.0600 10.9800 11.0300 220,400
11.0700 11.0700 11.0200 11.0400 333,000
11.1300 11.1500 11.0700 11.1200 594,900
11.0400 11.1000 11.0100 11.0900 367,800
Weekend
Weekend
11.0800 11.0800 11.0200 11.0500 327,900
10.9700 11.0500 10.9700 11.0400 361,300
10.8500 10.9700 10.8200 10.9300 405,900
10.5600 10.7300 10.4700 10.7100 370,600
10.6100 10.6100 10.5000 10.5600 411,100
Weekend
Weekend
No trading
10.5900 10.7700 10.5300 10.6600 354,300
10.5600 10.6600 10.5400 10.6200 318,800
10.5000 10.6100 10.4300 10.5100 410,600
10.4700 10.5100 10.3700 10.3900 605,600
Weekend
Weekend
10.4500 10.4700 10.4000 10.4500 303,200
10.5600 10.6200 10.4600 10.4600 235,400
10.6100 10.6500 10.5200 10.6200 399,900
10.6000 10.6300 10.5400 10.5600 514,600
10.6500 10.6800 10.6300 10.6600 210,500
Weekend
Weekend
10.7800 10.8400 10.6000 10.6000 209,500
10.8700 10.8800 10.7500 10.8300 203,200
10.8900 10.9400 10.8600 10.8700 178,500
10.9000 10.9300 10.8700 10.8800 146,100
10.9400 10.9400 10.8800 10.8900 198,500
Weekend
Weekend
10.9000 10.9100 10.8700 10.8900 169,400
10.9900 10.9900 10.9200 10.9200 169,000
11.0400 11.0800 10.9600 11.0000 180,700
11.0500 11.0800 11.0100 11.0300 264,300
11.0300 11.1200 11.0000 11.0200 178,300
Weekend
Weekend
11.1100 11.1100 11.0600 11.0800 173,100
11.2100 11.2100 11.1100 11.1300 146,300
11.2400 11.2500 11.2000 11.2300 102,000
11.2500 11.2800 11.1900 11.2500 203,000
11.2400 11.2900 11.1700 11.2800 351,500
Weekend
Weekend
11.2200 11.2600 11.2000 11.2500 177,700
11.2700 11.2800 11.1700 11.2100 279,800
11.3000 11.3000 11.2200 11.2500 244,500
11.2700 11.3100 11.2500 11.3000 173,500
11.2600 11.2800 11.2400 11.2700 237,500
Weekend
Weekend
11.2300 11.2400 11.2000 11.2400 113,900
11.2400 11.2400 11.2000 11.2300 106,600
11.2400 11.2400 11.2000 11.2200 140,100
11.2300 11.2600 11.2100 11.2100 90,200
No trading
Weekend
Weekend
11.2100 11.2300 11.1800 11.2100 129,800
11.1800 11.2600 11.1500 11.2100 159,200
11.2000 11.2200 11.1500 11.1800 100,600
11.2000 11.2200 11.1300 11.2100 99,200
11.1000 11.1700 11.0800 11.1600 132,700
Weekend
Weekend
11.1600 11.1600 11.0200 11.1000 259,400
11.2100 11.2200 11.1600 11.1800 121,300
11.2200 11.2500 11.1600 11.1900 189,100
11.1800 11.2800 11.1800 11.2100 214,500
11.1700 11.1900 11.1000 11.1800 175,600
Weekend
Weekend
11.1500 11.1600 11.0900 11.1600 146,300
11.1200 11.1500 11.0400 11.1400 150,600
11.0900 11.1100 11.0700 11.1100 156,000
11.0100 11.0600 10.9300 11.0500 146,200
11.0600 11.0700 10.9600 11.0000 186,300
Weekend
Weekend
11.0600 11.0600 10.9800 11.0500 189,400
11.1400 11.1400 11.0000 11.0300 165,400
11.1400 11.1700 11.0300 11.1700 211,500
11.1300 11.1500 11.1000 11.1300 166,600
No trading
Weekend
Weekend
11.1800 11.2200 11.1600 11.2000 129,500
11.1500 11.2000 11.1300 11.1600 176,600
11.0800 11.1400 11.0800 11.1300 181,700
11.0300 11.0800 11.0000 11.0500 223,800
10.9700 11.0000 10.9400 11.0000 103,500
Weekend
Weekend
10.9500 10.9700 10.9300 10.9600 143,100
10.9200 10.9500 10.8800 10.9100 185,600
10.8700 10.9200 10.8700 10.8900 228,900
10.8800 10.9000 10.8300 10.8500 147,600
10.8900 10.9200 10.8400 10.8500 192,400
Weekend
Weekend
10.8700 10.9300 10.8600 10.9000 119,100
No trading
10.8700 10.8900 10.8000 10.8700 405,800
10.7800 10.8700 10.7800 10.8600 355,400
10.7700 10.8300 10.7300 10.7700 420,600
Weekend
Weekend
10.7400 10.8100 10.7200 10.7400 671,300
No trading
10.6800 10.7400 10.6800 10.7300 376,500
10.8000 10.8000 10.7000 10.7000 464,800
10.8000 10.8100 10.7500 10.8000 505,100
Weekend
Weekend
10.8400 10.8700 10.7900 10.8400 244,700
10.8400 10.8400 10.8100 10.8200 331,400
10.8900 10.9200 10.7700 10.8100 326,800
10.8500 10.9000 10.8100 10.8700 154,400
10.8900 10.9200 10.7900 10.8500 442,000
Weekend
Weekend
10.9800 10.9800 10.8900 10.9300 150,900
10.9700 11.0200 10.9700 10.9900 157,300
11.0000 11.0000 10.9100 10.9900 248,100
11.0400 11.0800 10.9600 10.9600 189,600
11.0500 11.0800 11.0000 11.0800 122,500
Weekend
Weekend
11.0600 11.1000 11.0200 11.0700 159,300
11.0500 11.4600 11.0000 11.0600 191,700
10.9400 11.0500 10.9200 11.0500 472,600
10.8900 10.9400 10.8500 10.9100 197,000
10.9000 10.9400 10.8600 10.9000 200,500
Weekend
Weekend
10.9200 10.9500 10.9100 10.9400 85,500
No trading
10.9100 10.9300 10.8800 10.9300 149,800
10.8700 10.9300 10.8700 10.9100 207,300
10.8800 10.9000 10.8600 10.9000 190,000
Weekend
Weekend
10.9100 10.9100 10.8300 10.8400 140,500
10.9100 10.9400 10.8500 10.8800 75,500
10.9900 11.0000 10.9000 10.9200 92,600
10.9500 11.0100 10.9200 10.9700 99,400
11.0300 11.0300 10.9300 10.9500 123,400
Weekend
Weekend
11.0000 11.0500 10.9600 11.0100 108,000
11.0500 11.1100 11.0200 11.0600 127,500
11.0900 11.1200 11.0600 11.0700 146,100
11.0900 11.1200 11.0700 11.1100 122,500
11.0600 11.0700 10.9900 11.0700 154,700
Weekend
Weekend
11.0400 11.0600 10.9800 11.0100 121,400
11.0800 11.1200 11.0200 11.0400 126,500
11.0800 11.1500 11.0300 11.0400 214,000
11.0200 11.1000 10.9900 11.0600 262,200
11.0400 11.0500 10.9600 10.9900 209,600
Weekend
Weekend
11.0000 11.0800 11.0000 11.0400 190,800
10.9800 11.0100 10.9600 11.0000 121,800
10.9900 11.0300 10.9600 10.9900 239,600
10.9900 11.0300 10.9600 11.0200 305,700
10.9700 11.0100 10.9600 10.9900 373,600
Weekend
Weekend
11.0000 11.0500 10.9600 10.9700 246,000
11.0000 11.0100 10.9500 11.0000 303,100
11.0000 11.0300 10.9700 11.0000 226,900
11.0100 11.0400 10.9800 11.0100 292,700
11.0200 11.0700 11.0000 11.0100 268,500
Weekend
Weekend
11.0700 11.0800 10.9500 11.0000 120,200
11.1100 11.1300 11.0200 11.0600 155,100
11.1100 11.1300 11.0500 11.1100 158,100
7 · 424B3 After market open · 11:45 ET BLACKROCK MUNIYIELD QUALITY FUND III, INC. ↗ 6 · DEFA14A After market open · 11:42 ET BLACKROCK MUNIYIELD QUALITY FUND III, INC ↗
11.1000 11.1600 11.0900 11.1100 61,300
11.1300 11.1900 11.0700 11.0900 84,400
Weekend
Weekend
11.1400 11.1500 11.0800 11.0900 101,200
11.1000 11.1100 11.0600 11.1000 234,300
11.0800 11.0800 11.0600 11.0800 154,900
11.0100 11.0700 11.0100 11.0500 236,800
5 · DEFA14A After-hours · 16:06 ET BLACKROCK MUNIYIELD QUALITY FUND III, INC. MYI ↗
10.9600 11.0200 10.9300 11.0100 265,500
Weekend
Weekend
10.9700 10.9800 10.9400 10.9600 138,600
11.0300 11.0600 10.9800 10.9800 164,400
11.0700 11.1000 11.0300 11.0600 119,900
10.9300 11.0800 10.9300 11.0800 155,400
11.0000 11.0000 10.9100 10.9500 127,800
Weekend
Weekend
10.9700 10.9800 10.9400 10.9600 97,700
10.9700 10.9900 10.9400 10.9600 218,900
4 · DEFA14A Next filing day · accepted 24 Sep, 17:33 ET BLACKROCK MUNIYIELD QUALITY FUND III, INC. MYI ↗
10.9900 11.0100 10.9500 10.9500 225,600
10.9900 11.0200 10.9800 11.0100 138,100
10.9800 11.0000 10.9400 10.9600 163,200
Weekend
Weekend
10.9700 10.9700 10.9200 10.9700 110,800
11.0300 11.0400 10.9200 10.9600 244,900
11.0500 11.0700 10.9400 11.0100 234,900
11.0900 11.1100 10.9700 11.0100 215,900
11.0600 11.0700 11.0200 11.0700 96,200
Weekend
Weekend
11.0300 11.0400 10.9800 11.0300 140,200
10.9900 11.0400 10.9500 11.0200 214,500
10.9200 10.9800 10.9000 10.9600 512,900
10.9000 10.9100 10.8400 10.9100 177,000
3 · DEF 14A After market open · 14:23 ET PROXY STATEMENT - MYI, MIY, MVF, MVT ↗
10.7500 10.9000 10.7300 10.8800 228,300
Weekend
Weekend
10.6100 10.6900 10.6100 10.6900 221,200
2 · 424B3 Next filing day · accepted 04 Sep, 18:31 ET BLACKROCK MUNIYIELD QUALITY FUND III, INC. ↗
10.6000 10.6000 10.5400 10.5700 252,500
10.5700 10.5900 10.5600 10.5800 114,600
10.5700 10.5900 10.4900 10.5600 165,800
No trading
Weekend
Weekend
10.5400 10.6000 10.5200 10.6000 138,900
10.5500 10.5600 10.4900 10.5200 346,400
10.5700 10.5700 10.5200 10.5300 173,200
10.5300 10.5700 10.4800 10.5700 121,400
10.5400 10.5400 10.4800 10.5400 143,400
Weekend
Weekend
10.4200 10.5200 10.4100 10.5200 171,800
10.3700 10.3900 10.3500 10.3700 135,300
10.4400 10.4700 10.3500 10.3700 165,700
10.5000 10.5000 10.4500 10.4600 102,400
10.4800 10.5200 10.4700 10.4900 139,700
Weekend
Weekend
10.5100 10.5100 10.4300 10.4600 147,600
10.5600 10.5700 10.4900 10.5500 289,800
10.5500 10.5600 10.4900 10.5300 228,100
10.5300 10.5300 10.4500 10.5200 212,200
10.5300 10.5400 10.4600 10.5000 194,500
Weekend
Weekend
1 · PRE 14A After market open · 15:51 ET PROXY STATEMENT - MYI, MIY, MVF, MVT ↗
10.5600 10.5600 10.4500 10.5000 132,600
10.5300 10.5600 10.4900 10.5300 91,600
10.5400 10.5600 10.4900 10.5300 163,800
10.4800 10.5100 10.4500 10.5000 242,600
10.3900 10.4500 10.3900 10.4300 159,800
Weekend
Weekend
10.3600 10.4100 10.3300 10.3700 221,400
10.3000 10.3800 10.2700 10.3800 269,600
10.2800 10.3000 10.2200 10.2700 154,600
10.2500 10.2900 10.2400 10.2900 306,400
10.2900 10.3100 10.2400 10.2500 147,700
Weekend
Weekend
10.2800 10.3200 10.2500 10.3200 134,600
10.2400 10.3300 10.2400 10.2400 149,700
10.2400 10.2800 10.2300 10.2600 198,400
10.2500 10.2500 10.2000 10.2400 155,200

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

9 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 17:24 ET Summarise
8 DEF 14A CLASSIFIED FUND N&P (opens SEC filing in a new tab) After-hours · 16:34 ET Summarise
7 424B3 BLACKROCK MUNIYIELD QUALITY FUND III, INC. (opens SEC filing in a new tab) After market open · 11:45 ET Summarise
6 DEFA14A BLACKROCK MUNIYIELD QUALITY FUND III, INC (opens SEC filing in a new tab) After market open · 11:42 ET Summarise
5 DEFA14A BLACKROCK MUNIYIELD QUALITY FUND III, INC. MYI (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
4 DEFA14A BLACKROCK MUNIYIELD QUALITY FUND III, INC. MYI (opens SEC filing in a new tab) Next filing day · accepted 24 Sep, 17:33 ET Summarise
3 DEF 14A PROXY STATEMENT - MYI, MIY, MVF, MVT (opens SEC filing in a new tab) After market open · 14:23 ET Summarise
2 424B3 BLACKROCK MUNIYIELD QUALITY FUND III, INC. (opens SEC filing in a new tab) Next filing day · accepted 04 Sep, 18:31 ET Summarise
1 PRE 14A PROXY STATEMENT - MYI, MIY, MVF, MVT (opens SEC filing in a new tab) After market open · 15:51 ET Summarise