Magnachip Semiconductor Corporation MX

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Magnachip Semiconductor Corporation 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 4.25 → 3.65 · -14.1%
8.9305.6002.270 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16,17,18,19 20 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
3.6000 3.8199 3.6000 3.6500 491,814
3.5100 3.7400 3.5000 3.7400 587,000
3.4100 3.5000 3.3500 3.3800 844,300
Weekend
Weekend
3.3200 3.5600 3.2800 3.4200 724,400
3.6000 3.6300 3.4700 3.5200 1,702,300
3.9400 3.9800 3.6000 3.7400 1,218,100
3.8300 3.9800 3.8000 3.8900 1,009,500
3.9600 3.9600 3.7500 3.8100 1,077,100
Weekend
Weekend
4.2100 4.2100 3.9900 4.0200 1,548,100
3.8300 4.2800 3.7200 4.2300 2,144,800
3.7300 3.8600 3.6300 3.6800 1,238,300
4.0000 4.0100 3.7500 3.7900 1,524,200
4.2500 4.3600 4.0900 4.1300 1,151,300
Weekend
Weekend
No trading
4.5000 4.6300 4.0900 4.1200 1,250,800
4.5600 4.6700 4.4700 4.5100 1,131,300
4.6400 4.9500 4.6300 4.7300 1,530,000
20 · 8-K Pre-market · 06:10 ET 8-K ↗
4.7000 4.7300 4.3000 4.6200 1,478,300
Weekend
Weekend
4.7300 4.7800 4.5600 4.6500 934,900
5.1100 5.1200 4.7400 4.9100 1,418,600
5.2100 5.2600 4.7500 4.8600 1,459,300
5.4000 5.6700 5.1700 5.2200 1,577,500
6.0300 6.3400 5.6500 5.7600 2,323,800
Weekend
Weekend
No trading
5.3000 6.0000 5.2900 5.9200 2,188,800
19 · 8-K After-hours · 17:02 ET 8-K ↗ 18 · 424B5 After-hours · 17:01 ET 424B5 ↗ 17 · 424B3 After-hours · 17:00 ET 424B3 ↗
5.5300 5.7300 5.2500 5.2800 1,475,600
16 · 8-K Pre-market · 06:30 ET 8-K ↗
5.7900 6.0500 5.4900 5.5000 1,582,400
6.5900 6.7400 5.8000 5.9300 2,551,500
Weekend
Weekend
15 · S-3 After-hours · 16:32 ET S-3 ↗
6.2100 6.4500 6.0000 6.2500 1,684,700
6.2100 6.3500 5.8400 6.2500 2,792,000
6.1500 6.6500 6.0400 6.0800 2,041,200
7.0500 7.2800 5.8300 6.2800 3,522,800
7.1600 7.2100 6.7200 6.8900 2,587,400
Weekend
Weekend
8.2000 8.4400 6.8000 6.9300 5,233,900
8.4600 9.1500 8.0100 8.5500 3,478,400
8.6000 9.8600 8.0500 8.9300 8,556,000
8.3900 9.7800 8.1800 8.3400 7,836,200
8.4100 8.5300 7.4400 7.8300 8,089,600
Weekend
Weekend
8.0100 9.6700 7.7600 8.8000 16,219,100
5.9500 7.0500 5.7700 6.7900 5,688,600
6.7700 6.7800 5.8800 5.9500 4,369,300
5.9000 6.8500 5.8500 6.3800 5,708,900
No trading
Weekend
Weekend
5.7100 5.8300 5.2200 5.5200 2,554,900
4.8300 5.8700 4.8000 5.7600 3,917,600
4.4200 5.3800 4.4200 5.0600 4,312,700
4.0000 4.4600 3.9500 4.3100 1,282,400
4.4000 4.6100 4.0300 4.0700 1,178,700
Weekend
Weekend
4.1200 4.5000 4.0200 4.3400 1,632,900
4.0600 4.3800 3.9800 4.3300 1,060,500
4.0400 4.1800 3.9100 4.0700 1,106,800
4.2000 4.2100 3.8300 3.9400 1,527,900
4.5500 4.6100 4.2200 4.3000 1,786,200
Weekend
Weekend
14 · 10-Q After-hours · 16:30 ET 10-Q ↗
3.8900 4.7600 3.8800 4.5300 3,494,200
3.9400 4.1000 3.8000 3.8600 1,396,000
4.1700 4.2400 3.9300 3.9400 1,395,000
3.6000 4.1200 3.5500 4.0800 1,917,500
3.7500 4.0200 3.5300 3.5600 2,242,600
Weekend
Weekend
3.4100 3.8600 3.4000 3.7000 2,851,800
13 · DEF 14A After-hours · 16:30 ET DEF 14A ↗
3.2100 3.4100 3.0000 3.4000 3,366,300
4.5200 4.6000 3.1900 3.3200 5,096,600
12 · 8-K After-hours · 16:30 ET 8-K ↗
4.9700 5.0700 4.6500 4.8700 2,519,700
5.6100 5.6200 4.8700 5.2100 6,092,400
Weekend
Weekend
4.4500 5.6400 4.4400 5.2500 7,365,300
4.3500 4.3800 4.0100 4.2700 2,282,300
3.6500 4.4000 3.6500 4.3800 3,589,600
3.4200 3.5700 3.4200 3.5400 1,729,700
3.2200 3.4100 3.2200 3.3600 878,100
Weekend
Weekend
3.1800 3.2500 3.1700 3.2200 472,700
3.2000 3.2000 3.1100 3.1500 218,400
3.1200 3.2200 3.1200 3.1800 444,600
3.1400 3.1400 3.0700 3.0900 291,100
2.9900 3.1400 2.9600 3.0700 274,900
Weekend
Weekend
2.9100 3.0100 2.8900 2.9900 248,000
2.8900 2.9200 2.8700 2.9000 152,100
2.9800 3.0000 2.8800 2.8900 251,600
2.8700 2.9100 2.7900 2.8300 160,100
2.8800 2.8900 2.8200 2.8700 227,500
Weekend
Weekend
No trading
2.7600 2.8800 2.7300 2.8600 181,500
2.8000 2.9300 2.8000 2.8300 326,400
2.7600 2.8000 2.7100 2.8000 179,900
2.8500 2.8500 2.6700 2.7000 411,000
Weekend
Weekend
2.8200 2.8700 2.7600 2.8700 280,500
2.9200 2.9700 2.8200 2.8400 222,300
2.9200 3.0400 2.9200 2.9400 418,400
2.6900 2.9300 2.6900 2.8500 349,400
2.7200 2.8100 2.7100 2.7500 223,700
Weekend
Weekend
2.8100 2.8700 2.6300 2.6600 163,700
2.7500 2.8100 2.6900 2.8000 174,200
2.9400 2.9600 2.7500 2.7500 172,500
2.9500 3.1200 2.9200 2.9200 491,300
11 · 10-K After-hours · 16:30 ET 10-K ↗
2.8800 2.8900 2.8200 2.8600 195,000
Weekend
Weekend
2.7600 2.8300 2.7500 2.8200 136,200
2.8000 2.8300 2.7200 2.7600 400,700
2.7600 2.8700 2.7600 2.8000 265,300
2.7700 2.8000 2.7100 2.7300 305,800
2.6900 2.8000 2.6200 2.8000 275,200
Weekend
Weekend
2.8000 2.8500 2.7300 2.7500 270,100
2.8500 3.0100 2.7900 2.8700 825,800
10 · 8-K After-hours · 16:30 ET 8-K ↗
2.7300 2.7900 2.6500 2.6800 346,600
2.6900 2.7700 2.6600 2.7200 285,700
2.6100 2.7800 2.6100 2.7500 241,100
Weekend
Weekend
2.7900 2.8300 2.6900 2.7500 264,900
2.6900 2.8600 2.6600 2.8500 630,500
2.6900 2.7500 2.6500 2.6800 183,800
2.4400 2.6400 2.4000 2.6100 1,062,500
2.6600 2.6600 2.4100 2.4200 682,900
Weekend
Weekend
2.7400 2.7600 2.6200 2.6500 781,100
2.8500 2.8600 2.7300 2.7800 506,200
2.8700 2.9200 2.8200 2.8800 457,000
2.9900 3.0300 2.8200 2.8600 421,100
No trading
Weekend
Weekend
3.0400 3.0900 3.0100 3.0100 202,900
3.0300 3.0700 2.9900 3.0300 407,000
3.0700 3.1000 2.9700 3.0400 202,200
3.0500 3.0900 3.0000 3.0300 220,500
3.0400 3.1100 3.0200 3.0200 246,000
Weekend
Weekend
2.8800 3.1100 2.8800 3.0400 330,000
2.8500 2.8500 2.7800 2.8000 179,100
2.8600 2.9800 2.8200 2.8600 231,200
2.9000 2.9300 2.8000 2.8700 245,000
2.8700 3.0000 2.8700 2.9000 280,200
Weekend
Weekend
2.9300 2.9300 2.8600 2.9000 368,500
2.9900 3.0200 2.8200 2.9500 264,800
3.0600 3.1000 2.9700 3.0000 185,300
2.9400 3.0700 2.9400 3.0300 282,400
3.0300 3.0500 2.9100 2.9500 227,100
Weekend
Weekend
3.1400 3.1600 2.9800 2.9900 243,500
3.1500 3.1800 3.0600 3.1400 421,900
3.0600 3.2900 3.0600 3.1200 739,600
2.9800 3.1400 2.9500 3.0000 299,900
9 · 8-K Pre-market · 06:40 ET 8-K ↗
No trading
Weekend
Weekend
2.9100 3.0900 2.9000 3.0300 565,600
2.9500 3.0000 2.8600 2.8900 288,000
2.8600 2.9300 2.8400 2.8900 216,100
8 · 8-K Pre-market · 06:40 ET 8-K ↗
2.8100 2.8900 2.7600 2.8600 397,700
2.8200 2.8500 2.7200 2.8100 280,300
Weekend
Weekend
2.8000 2.8700 2.7600 2.8300 238,600
2.8300 2.8400 2.7500 2.7600 248,600
2.9200 2.9200 2.8000 2.8500 191,700
2.8100 2.9400 2.8100 2.9000 418,900
2.7100 2.8300 2.7000 2.7900 265,300
Weekend
Weekend
2.5700 2.6900 2.5700 2.6800 220,900
No trading
2.6200 2.6200 2.5300 2.5500 311,900
2.5600 2.6500 2.5600 2.6100 267,500
2.6300 2.6800 2.5500 2.5800 228,100
Weekend
Weekend
2.6500 2.6800 2.6000 2.6400 250,700
No trading
2.7000 2.7300 2.6400 2.6900 138,100
2.7400 2.7400 2.6600 2.7000 238,900
2.7800 2.8100 2.7100 2.7500 436,400
Weekend
Weekend
2.6200 2.7500 2.5800 2.7200 549,200
2.6000 2.6600 2.5700 2.6100 151,800
2.6000 2.6300 2.5600 2.5600 130,500
2.6300 2.6300 2.5700 2.5700 141,200
2.7200 2.7200 2.6200 2.6300 187,900
Weekend
Weekend
2.9100 2.9200 2.6800 2.7100 239,700
2.9400 2.9600 2.8600 2.9300 213,000
2.9500 2.9800 2.9200 2.9500 220,500
2.9100 2.9900 2.8800 2.9700 312,500
3.0200 3.0200 2.9300 2.9300 306,500
Weekend
Weekend
3.0500 3.0900 2.9900 2.9900 559,100
3.0000 3.0300 2.9000 3.0000 742,400
2.8200 2.9600 2.7900 2.9600 595,100
2.7400 2.8200 2.7000 2.8100 430,700
2.6200 2.7200 2.6100 2.7100 401,000
Weekend
Weekend
2.6600 2.6800 2.6000 2.6400 355,900
No trading
2.4000 2.6800 2.4000 2.6500 882,600
2.4200 2.4200 2.3200 2.3800 360,500
2.3200 2.4100 2.2500 2.3900 1,443,400
Weekend
Weekend
2.3000 2.3200 2.1900 2.3000 548,900
2.3500 2.4300 2.2200 2.2700 773,500
2.3000 2.3500 2.2700 2.3200 614,600
2.3200 2.3700 2.1800 2.3000 592,100
2.3500 2.4400 2.2900 2.3500 497,100
Weekend
Weekend
2.2800 2.3700 2.2500 2.3300 688,600
2.3600 2.4000 2.2300 2.3200 592,700
2.3300 2.4500 2.3200 2.4100 416,400
2.2900 2.3200 2.2300 2.3200 301,200
7 · 10-Q After-hours · 16:23 ET FORM 10-Q ↗
2.2800 2.3200 2.2100 2.3000 327,600
Weekend
Weekend
2.3500 2.4000 2.2100 2.2700 601,700
2.6000 2.6400 2.3500 2.4100 594,600
2.7800 2.7900 2.5400 2.5600 815,500
2.7600 2.8900 2.6500 2.8500 1,213,900
6 · 8-K After-hours · 16:30 ET 8-K ↗
3.1000 3.2300 3.1000 3.1100 962,900
Weekend
Weekend
3.0000 3.1200 3.0000 3.1000 247,200
2.9800 3.0700 2.9500 2.9900 271,200
3.0800 3.0800 3.0000 3.0400 266,600
3.1500 3.1800 3.0300 3.0400 299,000
3.1200 3.1800 3.1000 3.1500 402,700
Weekend
Weekend
3.1000 3.1200 3.0300 3.0700 366,300
3.0100 3.1500 3.0100 3.0900 246,200
2.9800 3.0500 2.9700 3.0100 315,400
3.0300 3.0400 2.9600 3.0200 417,200
3.0400 3.1000 2.9800 3.0300 244,900
Weekend
Weekend
3.0800 3.1300 2.9800 3.0100 162,900
3.1600 3.2300 3.0900 3.0900 188,400
3.0900 3.1400 3.0500 3.1400 106,700
3.0400 3.1100 3.0200 3.0500 151,600
3.0500 3.1000 3.0000 3.0500 164,600
Weekend
Weekend
3.1400 3.1700 2.9800 3.0000 238,200
3.1700 3.1800 3.1100 3.1500 165,700
3.1100 3.1900 3.1100 3.1500 135,200
3.2700 3.2900 3.1000 3.1100 237,700
3.2700 3.2700 3.1900 3.2400 252,800
Weekend
Weekend
5 · 8-K/A After-hours · 16:15 ET 8-K/A ↗
3.2500 3.3000 3.1700 3.2000 156,300
3.1900 3.2500 3.1800 3.2200 152,500
3.1200 3.2000 3.1200 3.1700 180,600
3.1700 3.2400 3.1300 3.1300 168,300
3.2700 3.3000 3.1300 3.1700 657,000
Weekend
Weekend
3.2300 3.2600 3.1500 3.2500 140,900
3.2600 3.2800 3.1000 3.1900 326,400
3.2600 3.3000 3.2400 3.2800 225,300
3.2700 3.3200 3.2300 3.2500 234,900
3.1900 3.2800 3.1900 3.2500 246,000
Weekend
Weekend
3.3500 3.3500 3.2600 3.2600 262,900
3.3000 3.3600 3.2500 3.3300 233,000
3.1900 3.2600 3.1700 3.2400 289,200
3.2300 3.2300 3.1400 3.1700 214,200
3.1400 3.1800 3.0900 3.1700 244,000
Weekend
Weekend
3.0600 3.1100 3.0600 3.1100 199,600
3.0700 3.1100 3.0600 3.0600 159,000
3.1400 3.1600 3.0200 3.0600 241,400
3.0300 3.0500 2.9800 3.0200 173,200
4 · 8-K/A Pre-market · 06:01 ET 8-K/A ↗
2.9800 3.0500 2.9700 3.0200 175,700
Weekend
Weekend
2.9800 3.0100 2.9200 2.9700 245,800
2.9600 2.9800 2.8900 2.9500 164,400
3.0600 3.0600 2.9500 2.9700 220,700
3.1000 3.1100 3.0300 3.0600 196,200
No trading
Weekend
Weekend
3.1600 3.2400 3.1300 3.1500 222,600
3.1800 3.2000 3.0700 3.1400 361,200
2.9700 3.3000 2.9700 3.1700 770,800
2.8400 2.9200 2.8400 2.8800 319,200
2.8500 2.8900 2.8100 2.8400 312,500
Weekend
Weekend
2.7400 2.8600 2.7400 2.8400 251,700
2.6600 2.7400 2.6600 2.7200 216,800
2.8000 2.8000 2.6600 2.6800 266,200
2.9000 2.9900 2.7800 2.7900 210,800
2.9500 2.9800 2.8800 2.8900 199,700
Weekend
Weekend
2.9800 2.9800 2.9000 2.9300 286,300
2.9700 3.0000 2.9400 2.9800 252,300
2.9700 3.1200 2.9400 2.9700 805,300
2.7000 2.9800 2.6800 2.9300 801,000
3 · 8-K After-hours · 16:20 ET 8-K ↗
2.7200 2.9200 2.6700 2.6800 666,600
Weekend
Weekend
2.7500 2.8500 2.6900 2.7000 385,300
2.8300 2.8400 2.6900 2.7200 393,200
2.8800 2.9000 2.7100 2.7500 404,500
2 · 10-Q After-hours · 16:22 ET FORM 10-Q ↗
2.8300 2.9200 2.7900 2.8300 268,100
3.0500 3.0900 2.8100 2.8400 628,500
Weekend
Weekend
3.1500 3.2800 2.9500 2.9600 1,291,500
1 · 8-K After-hours · 16:21 ET 8-K ↗
4.2500 4.2700 4.1000 4.1000 292,000
4.1900 4.2800 4.1700 4.2600 187,600
4.2100 4.2300 4.1300 4.2000 78,200
4.1300 4.2500 4.1000 4.2200 107,400
Weekend
Weekend
4.1200 4.1500 4.0400 4.1400 133,300
4.2900 4.3200 4.0900 4.1100 140,800
4.3000 4.3000 4.1800 4.2600 161,500
4.4500 4.4500 4.2500 4.2500 152,400

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.

20 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:10 ET Summarise
19 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:02 ET Summarise
18 424B5 424B5 (opens SEC filing in a new tab) After-hours · 17:01 ET Summarise
17 424B3 424B3 (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:30 ET Summarise
15 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:32 ET Summarise
14 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
13 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
11 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:40 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:40 ET Summarise
7 10-Q FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
5 8-K/A 8-K/A (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
4 8-K/A 8-K/A (opens SEC filing in a new tab) Pre-market · 06:01 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
2 10-Q FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:21 ET Summarise