KT Corporation KT
Open calendar →KT Corporation Common Stock · Company · NYSE
USD closing-price chart (daily close from yfinance · Last year)
USD 21.03 → 18.00 · -14.4%
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.
Date
Open
High
Low
Close
Volume
No data yet
17.8900
18.0000
17.7550
18.0000
1,688,156
17.9500
18.0000
17.7900
17.8600
1,059,400
17.7200
18.0000
17.5700
17.9000
1,741,100
Weekend
Weekend
17.7000
17.8000
17.5200
17.5600
904,500
17.5100
17.9300
17.5100
17.6500
793,900
17.3500
17.6300
17.2500
17.3400
1,463,500
17.4800
17.6100
17.2900
17.3400
1,340,000
37 · 6-K
Pre-market · 06:05 ET
6-K ↗
36 · 6-K
Pre-market · 06:04 ET
6-K ↗
35 · 6-K
Pre-market · 06:03 ET
6-K ↗
34 · 6-K
Pre-market · 06:01 ET
6-K ↗
17.8000
17.8300
17.3600
17.3800
1,368,900
Weekend
Weekend
18.6600
18.6600
17.7700
17.9500
1,827,200
18.4200
18.6800
18.3300
18.6800
1,267,600
18.2900
18.3400
18.0900
18.2900
1,437,500
17.8900
18.3600
17.8400
18.2600
1,487,200
18.0000
18.0000
17.5500
17.6400
1,653,000
33 · 6-K
Pre-market · 06:04 ET
6-K ↗
Weekend
Weekend
No trading
17.5000
17.8600
17.5000
17.6900
1,784,600
17.1400
17.3800
17.1300
17.2600
1,212,500
17.4300
17.5100
17.2700
17.2800
945,800
17.5900
17.7500
17.2100
17.4400
940,200
Weekend
Weekend
17.7400
17.9700
17.6000
17.6500
1,438,400
18.0700
18.1600
17.7400
17.8100
2,251,900
17.6000
17.9700
17.6000
17.8100
2,217,900
17.4700
17.8100
17.3800
17.7800
2,774,400
17.9600
18.1000
17.5000
17.8500
1,886,300
Weekend
Weekend
No trading
18.4900
18.5600
18.1000
18.3200
2,468,900
18.7000
18.7800
18.2300
18.2600
1,216,300
18.7200
18.9800
18.6100
18.7600
928,500
18.6500
18.9700
18.6300
18.8400
1,336,800
Weekend
Weekend
18.3400
18.8600
18.3400
18.5100
1,221,600
18.6000
18.9800
18.4900
18.7500
3,589,600
18.7200
18.8800
18.4300
18.4300
1,294,700
32 · 6-K
Next filing day · accepted 09 Jun, 21:50 ET
6-K ↗
18.6300
19.0600
18.5900
18.6900
3,417,900
18.2600
18.7500
18.2000
18.4700
2,742,300
Weekend
Weekend
17.6600
18.1500
17.6100
18.1200
3,103,000
18.1000
18.4000
17.8900
18.2100
1,804,300
18.5000
18.6700
18.3600
18.3800
1,856,800
18.3600
18.7000
18.3200
18.6100
1,537,300
17.8500
18.3800
17.7700
18.2200
3,212,000
Weekend
Weekend
17.8100
18.0000
17.7100
17.8200
2,569,600
31 · 6-K
Next filing day · accepted 28 May, 21:50 ET
6-K ↗
17.5700
17.7300
17.4500
17.6900
2,024,900
18.0700
18.0700
17.6000
17.7000
1,267,800
18.3500
18.5100
18.1900
18.2100
1,333,900
No trading
Weekend
Weekend
18.5000
18.5600
18.2800
18.3200
1,898,600
18.7400
18.8300
18.2200
18.6000
1,602,900
18.8500
18.9900
18.4300
18.4800
3,091,200
18.9300
19.0400
18.8200
18.8500
1,590,100
19.6500
19.6600
19.0900
19.1600
995,700
Weekend
Weekend
19.6100
19.8300
19.5800
19.5800
1,198,400
20.4700
20.4700
19.6300
19.7100
3,171,300
20.5900
20.7700
20.3800
20.4100
711,700
20.7000
21.0200
20.4800
20.5700
1,244,600
30 · 6-K
Next filing day · accepted 11 May, 21:44 ET
6-K ↗
29 · 6-K
Next filing day · accepted 11 May, 21:41 ET
6-K ↗
28 · 6-K
Next filing day · accepted 11 May, 21:38 ET
6-K ↗
27 · 6-K
Next filing day · accepted 11 May, 21:36 ET
6-K ↗
21.1200
21.4400
20.9400
21.0800
876,300
Weekend
Weekend
21.1500
21.5800
21.0900
21.1800
622,000
21.1300
21.2300
20.9400
20.9600
1,123,400
21.4500
21.4600
21.0300
21.1800
768,500
21.3300
21.5100
21.2900
21.4400
438,100
21.2300
21.3400
21.1400
21.1900
726,300
26 · 6-K
Pre-market · 06:18 ET
6-K ↗
Weekend
Weekend
21.4400
21.4600
21.2400
21.2500
387,600
21.2000
21.4300
21.1400
21.4300
693,000
21.1300
21.3700
21.0300
21.1300
857,500
25 · 20-F
Pre-market · 06:43 ET
20-F ↗
21.2900
21.3100
21.0700
21.1900
658,400
21.5400
21.6700
21.2800
21.3200
1,063,400
Weekend
Weekend
21.6400
21.7200
21.4400
21.6700
1,069,000
21.8500
21.8900
21.5700
21.6900
1,025,800
21.8500
21.9400
21.6100
21.8400
890,800
21.9400
22.1200
21.7700
21.7700
1,003,600
21.6600
22.2600
21.6600
21.9200
2,104,600
Weekend
Weekend
22.8200
22.9200
22.6400
22.6900
1,880,500
22.6500
22.8200
22.6100
22.7000
1,141,800
22.8100
22.9300
22.4300
22.6500
1,566,800
22.5500
23.0100
22.5200
22.7500
1,248,000
24 · 6-K/A
Pre-market · 08:29 ET
6-K/A ↗
23 · 6-K
Next filing day · accepted 13 Apr, 20:50 ET
6-K ↗
22.4600
22.6200
22.3300
22.5500
900,300
Weekend
Weekend
22.2500
22.6500
22.2500
22.6200
1,252,300
21.9900
22.3600
21.9500
22.1900
1,043,500
22.0000
22.3300
21.9100
22.1100
1,376,400
21.2700
21.5000
21.2000
21.4800
1,582,500
21.5900
21.7200
21.2400
21.2500
1,061,700
Weekend
Weekend
No trading
21.4200
21.5800
21.3100
21.5000
1,041,900
21.6400
21.9900
21.5700
21.8800
1,047,300
21.2100
21.5600
21.0000
21.4500
1,728,700
22 · 6-K
Pre-market · 07:09 ET
6-K ↗
21 · 6-K
Pre-market · 07:08 ET
6-K ↗
21.5300
21.5800
21.1600
21.1600
1,319,900
Weekend
Weekend
21.5000
21.8100
21.3900
21.5300
708,100
21.5300
21.6500
21.3200
21.3800
945,400
21.8500
21.9600
21.7600
21.8100
902,100
21.0600
21.8100
21.0000
21.6500
1,222,600
20.8900
21.3600
20.6300
21.2600
2,499,900
Weekend
Weekend
21.8000
21.9200
21.6400
21.6400
1,999,900
21.9300
21.9300
21.6800
21.8400
1,090,500
22.0000
22.2500
21.9400
22.0100
1,155,300
21.8800
22.3800
21.8000
22.2600
1,673,600
21.5200
21.6800
21.3100
21.6000
1,647,700
20 · 6-K/A
Pre-market · 07:15 ET
6-K/A ↗
Weekend
Weekend
22.0200
22.0200
21.2200
21.2200
1,992,600
22.0000
22.0200
21.7100
21.7800
980,300
22.3800
22.3800
22.0000
22.0700
1,088,000
22.5400
22.7100
21.8900
22.3900
1,328,700
19 · 6-K
Pre-market · 07:37 ET
6-K ↗
18 · 6-K
Next filing day · accepted 09 Mar, 21:57 ET
6-K ↗
21.8900
22.4000
21.5100
22.2100
2,308,800
Weekend
Weekend
22.0100
22.4200
21.7900
22.0100
2,762,500
22.1400
22.4700
22.0400
22.3300
3,077,400
21.8200
22.9300
21.5100
22.9000
4,248,700
22.6200
22.8300
21.9700
22.6000
1,563,000
23.4000
23.7500
23.2000
23.5600
1,676,100
Weekend
Weekend
23.8000
24.0000
23.6300
23.8000
1,509,100
24.3300
24.4400
23.9400
23.9700
3,919,800
24.2400
24.4100
24.0100
24.3300
1,625,600
23.9600
24.2700
23.8700
24.1300
2,101,100
24.2500
24.4300
23.7800
23.9100
4,495,700
Weekend
Weekend
24.5100
24.5800
24.1100
24.5400
1,429,500
24.0000
24.3400
23.8000
24.1500
2,221,300
23.7500
23.8700
23.5400
23.7900
2,307,000
23.7600
23.8000
23.2400
23.7500
3,049,700
No trading
Weekend
Weekend
23.5900
23.7900
23.4600
23.5600
1,008,800
23.6500
23.9700
23.2900
23.5200
2,074,700
23.0000
23.4500
22.7400
23.3900
2,359,500
21.8800
23.2400
21.8800
22.6600
2,449,600
17 · 6-K
Next filing day · accepted 09 Feb, 21:06 ET
6-K ↗
16 · 6-K
Next filing day · accepted 09 Feb, 20:20 ET
6-K ↗
15 · 6-K
Next filing day · accepted 09 Feb, 20:08 ET
6-K ↗
14 · 6-K
Next filing day · accepted 09 Feb, 20:04 ET
6-K ↗
13 · 6-K
Next filing day · accepted 09 Feb, 19:59 ET
6-K ↗
21.4600
21.8000
21.3700
21.7700
1,590,400
Weekend
Weekend
21.0400
21.2900
20.9700
21.2700
1,640,900
20.9600
21.1500
20.9000
21.0200
2,416,700
20.9000
21.2500
20.6800
21.1700
1,891,900
20.9400
21.1400
20.8500
20.9000
1,535,200
12 · 6-K
Next filing day · accepted 02 Feb, 19:19 ET
6-K ↗
20.6500
20.8200
20.3200
20.6900
1,606,100
Weekend
Weekend
20.8500
21.1600
20.7600
20.9200
2,529,000
20.9500
21.4400
20.9100
21.0800
1,894,200
20.7500
20.9900
20.5900
20.7200
1,468,800
20.1400
20.7400
20.1400
20.6600
1,434,300
19.9400
20.0500
19.8500
19.9400
1,180,900
Weekend
Weekend
19.6800
19.9500
19.5700
19.9100
1,107,300
19.6500
19.7700
19.6400
19.6700
1,779,200
19.7900
19.8000
19.4900
19.6300
2,559,000
19.5000
19.6100
19.2600
19.5200
1,761,100
11 · 6-K
Pre-market · 06:06 ET
FORM 6-K ↗
No trading
Weekend
Weekend
19.2800
19.5000
19.1600
19.4900
1,401,000
19.1400
19.4100
19.0600
19.2900
1,241,300
18.9500
19.2300
18.8700
19.1700
2,052,100
19.0000
19.1000
18.8700
18.9300
1,233,400
18.8000
19.1100
18.6700
19.0500
2,371,400
Weekend
Weekend
18.9500
18.9900
18.7700
18.8200
1,443,400
18.7800
19.0100
18.7800
18.9700
1,848,700
19.2100
19.3900
18.9600
18.9700
1,672,400
19.1100
19.3300
19.0300
19.2100
3,119,900
19.0900
19.3900
18.9700
19.0900
2,187,500
Weekend
Weekend
18.8500
19.1400
18.7600
19.0400
2,283,600
No trading
18.9900
19.0800
18.9400
18.9700
601,900
19.0400
19.0800
18.9200
19.0500
993,000
19.0100
19.1400
18.9000
19.0600
929,400
Weekend
Weekend
19.1000
19.1600
18.9200
19.1500
665,600
No trading
18.7800
19.0600
18.7800
19.0300
633,700
18.6200
18.7600
18.5400
18.6000
762,000
18.5200
18.7000
18.4700
18.6200
966,300
Weekend
Weekend
18.7400
18.9100
18.6200
18.6200
1,709,000
19.0400
19.1000
18.7600
18.8100
2,628,900
18.7200
19.0500
18.7100
19.0500
3,113,800
10 · 6-K
Pre-market · 07:45 ET
FORM 6-K ↗
18.9500
19.0300
18.6500
18.7100
2,389,900
18.9200
19.2900
18.8500
19.0100
2,392,300
Weekend
Weekend
18.6800
18.7500
18.6300
18.7000
2,562,500
18.3800
18.5600
18.2300
18.5100
3,032,200
18.3500
18.6400
18.3500
18.6300
1,148,400
18.5900
18.6900
18.3100
18.3900
1,672,900
18.5200
18.5300
18.3700
18.4900
1,900,800
Weekend
Weekend
18.6400
18.7700
18.5400
18.5600
1,471,000
18.7400
18.8200
18.5300
18.5600
1,692,300
18.8900
19.0300
18.5700
18.5700
2,058,800
18.4400
18.5000
18.2300
18.3800
2,364,100
9 · 6-K
Next filing day · accepted 01 Dec, 19:39 ET
FORM 6-K ↗
18.3100
18.4900
18.2300
18.4500
1,556,400
Weekend
Weekend
18.3800
18.4300
18.2200
18.3600
830,600
No trading
18.1500
18.4100
18.1500
18.3500
1,954,900
17.8700
18.2000
17.6900
18.1800
2,716,700
17.7700
17.9400
17.7200
17.8300
1,861,400
Weekend
Weekend
17.7500
17.9500
17.7300
17.8300
1,270,000
17.7800
17.8900
17.5400
17.6700
1,762,100
17.9300
18.0000
17.6800
17.7900
1,380,900
18.2000
18.2000
17.7700
17.8800
2,008,900
18.1300
18.2100
17.9500
18.1400
1,814,000
Weekend
Weekend
18.2000
18.2000
18.0400
18.1000
1,394,300
18.2600
18.4000
18.0200
18.1500
2,097,000
18.3000
18.3800
18.0000
18.0200
1,408,700
8 · 6-K
Pre-market · 06:05 ET
FORM 6-K ↗
18.2000
18.4300
18.1400
18.3400
1,920,000
18.1000
18.2600
17.8100
18.1000
1,372,100
Weekend
Weekend
18.0400
18.4700
18.0400
18.2100
919,100
7 · 6-K
Pre-market · 06:12 ET
FORM 6-K ↗
18.3300
18.6200
18.2100
18.4300
1,875,700
18.3800
18.4800
18.3000
18.3600
831,000
18.4700
18.6100
18.4400
18.4900
1,267,300
18.6600
18.7000
18.4200
18.7000
1,229,100
Weekend
Weekend
18.4000
18.5600
18.2000
18.5500
1,223,600
6 · 6-K
Pre-market · 06:05 ET
FORM 6-K ↗
18.6400
18.7500
18.4000
18.4000
792,900
19.2200
19.2200
18.8900
18.9000
773,900
18.7600
19.1300
18.7100
19.1300
1,207,100
18.6000
18.9500
18.2000
18.8400
929,600
Weekend
Weekend
18.7500
18.7500
18.5000
18.6100
1,409,800
18.8900
18.9800
18.7100
18.7300
667,800
18.9000
19.0600
18.8700
19.0200
679,800
19.0300
19.1100
18.8700
18.9300
892,400
5 · 6-K
Pre-market · 06:02 ET
FORM 6-K ↗
19.1200
19.2600
19.0800
19.2500
956,500
Weekend
Weekend
19.0600
19.1100
18.9000
19.0100
1,040,500
18.7000
19.2700
18.5100
19.2200
3,810,400
18.2100
18.5200
18.1900
18.5000
1,469,100
18.2700
18.2700
18.0400
18.2000
1,588,900
18.7600
18.7700
18.4800
18.4800
1,614,300
Weekend
Weekend
18.9700
18.9700
18.5600
18.5700
1,151,000
19.3900
19.4300
18.8600
18.9100
961,300
19.4600
19.4600
19.2600
19.3700
812,600
19.5100
19.5100
19.2500
19.3400
634,500
19.5400
19.6400
19.4100
19.5200
589,500
Weekend
Weekend
19.8900
19.9000
19.6600
19.6700
724,200
19.9600
20.0200
19.8000
19.8800
1,230,500
19.6000
19.9200
19.5200
19.7600
1,572,300
19.4600
19.5100
19.2900
19.5000
2,575,800
19.3000
19.5200
19.2500
19.4800
1,476,900
Weekend
Weekend
19.3300
19.3600
19.2000
19.3200
912,300
19.5000
19.6000
19.3000
19.3400
1,113,900
19.4100
19.5900
19.3800
19.4900
2,272,900
19.4700
19.5400
19.3200
19.4100
1,415,200
19.3100
19.4500
19.1700
19.4200
1,730,800
Weekend
Weekend
19.7500
19.8300
19.3100
19.3900
1,293,100
20.1000
20.1200
19.9500
19.9800
923,900
19.9400
20.2200
19.9400
20.0900
979,800
20.0100
20.1800
19.8800
20.0100
1,775,200
19.8500
20.1700
19.7600
20.0500
1,407,000
Weekend
Weekend
19.7500
19.7600
19.5800
19.7400
1,218,200
20.0500
20.1300
19.9200
20.0600
1,352,000
19.6700
19.8600
19.5700
19.7400
2,549,100
19.7500
20.0300
19.6000
20.0000
2,944,500
20.1400
20.2000
20.0200
20.0400
812,300
Weekend
Weekend
20.4000
20.4200
20.2200
20.2800
1,735,100
4 · 6-K
Pre-market · 06:02 ET
FORM 6-K ↗
20.0100
20.1400
19.9300
20.1400
978,600
19.7800
20.1100
19.7000
19.9800
2,442,900
19.8700
19.9800
19.6100
19.7800
1,624,900
No trading
Weekend
Weekend
20.2700
20.3100
20.1300
20.2500
997,900
20.2500
20.5400
20.2200
20.4300
1,420,700
20.3200
20.3200
20.0900
20.1900
782,900
20.8500
20.8500
20.4100
20.4100
1,778,600
20.7200
21.1400
20.6300
20.9700
1,068,000
Weekend
Weekend
20.4400
20.6900
20.3700
20.6900
1,221,000
20.7900
20.8700
20.4600
20.4800
929,800
20.8100
21.1200
20.7300
20.9500
2,247,600
20.6900
20.7800
20.5600
20.7500
2,983,500
20.6000
20.8000
20.5000
20.7900
1,821,600
Weekend
Weekend
20.7500
20.7700
20.5100
20.5900
712,300
20.2700
20.7500
20.2700
20.7000
2,002,000
20.1200
20.4400
19.9500
20.2700
1,719,600
3 · 6-K
Pre-market · 06:05 ET
FORM 6-K ↗
20.2000
20.2000
19.8900
20.1000
2,521,400
19.9000
20.1800
19.9000
20.0400
1,499,100
2 · 6-K
Pre-market · 06:10 ET
FORM 6-K ↗
Weekend
Weekend
20.1000
20.2700
19.9400
20.1900
666,700
20.0000
20.3600
19.7100
20.1500
1,829,500
20.5400
20.5400
20.1400
20.1700
1,341,000
20.6100
20.7500
20.4900
20.7500
1,027,100
1 · 6-K
Next filing day · accepted 04 Aug, 21:19 ET
FORM 6-K ↗
20.5100
20.7800
20.5000
20.5600
1,269,600
Weekend
Weekend
19.9400
20.4800
19.3200
20.3800
1,217,500
20.0400
20.2300
20.0400
20.1900
1,213,700
20.1500
20.3000
20.1500
20.2100
478,800
19.9700
20.3400
19.9300
20.3400
1,084,000
20.3200
20.3900
19.9300
20.0400
1,119,200
Weekend
Weekend
20.7700
20.8500
20.5800
20.6500
517,800
21.0000
21.1300
20.9300
20.9500
1,264,400
21.0300
21.1500
20.9500
21.0700
1,008,300
20.8700
21.1000
20.8500
21.0300
730,400
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.