Korro Bio, Inc KRRO

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Korro Bio, Inc. - Common Stock · Company · Nasdaq · Healthcare / Biotechnology

Paper trade (simulated — no real money)

Fill: USD 11.9800 · FX 1 USD = 1.277900 SGD · about SGD 15.3092 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

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

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

USD 38.09 → 11.98 · -68.5%
40.91023.0955.280 1,2 3 4 5 6 7,8 9 10 11,12 13,14 15 16 17 18,19 20 21 22 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 24 Oct 2025 — 25 Oct 2026 (Last year)

Daily Nasdaq 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.

Weekend
Weekend
12.0400 12.4900 11.2800 11.9800 237,343
22 · 8-K After market open · 11:04 ET 8-K ↗
9.4000 12.1000 9.0850 12.0500 475,900
9.4700 9.7700 9.2200 9.2900 116,000
8.9200 9.6300 8.9200 9.4400 235,000
8.5800 8.9400 8.3600 8.9100 134,900
Weekend
Weekend
9.3200 9.3800 8.4500 8.4900 129,700
8.9300 9.7800 8.5300 9.3100 440,100
8.6200 9.1300 8.3400 8.8800 216,400
9.3700 9.3900 8.5450 8.8100 263,700
10.0900 10.2600 9.3200 9.3700 140,400
Weekend
Weekend
10.6000 10.7800 10.1250 10.1600 133,500
10.3600 10.6400 10.1800 10.5800 167,200
9.6400 10.6400 9.5000 10.4900 157,000
10.2000 10.3500 9.4700 9.7600 142,600
21 · 8-K After-hours · 20:10 ET 8-K ↗
9.7000 10.1000 9.4100 9.9700 112,200
Weekend
Weekend
9.9000 9.9000 9.4780 9.6400 153,100
9.9300 10.2700 9.4650 9.7100 88,800
9.8900 10.0100 9.5000 9.9100 108,100
9.5600 9.8000 9.3000 9.5600 92,900
9.4900 9.6550 9.2400 9.5100 132,400
Weekend
Weekend
9.6400 9.6400 9.4000 9.5700 114,400
9.7100 9.7500 9.4100 9.5700 197,500
10.3100 10.3100 9.5500 9.8300 224,700
10.0800 10.5840 10.0100 10.3400 213,500
10.1200 10.7700 9.8600 9.9800 290,400
Weekend
Weekend
11.7100 11.9450 9.5050 10.0200 763,100
14.1800 14.3550 11.7600 11.8000 400,300
14.1500 14.8640 13.4400 13.8300 304,600
13.8700 14.2000 12.9800 14.0700 162,600
13.5900 15.1500 13.5550 13.8800 264,800
Weekend
Weekend
13.2800 14.0600 13.1740 13.8100 198,000
12.8000 13.1600 12.3800 13.0600 145,800
13.4400 13.7600 12.8700 12.9300 131,500
12.0300 13.6200 11.8900 13.5100 119,100
No trading
Weekend
Weekend
11.5300 12.3000 11.5300 12.2400 78,400
12.0900 12.6280 11.3000 11.6200 82,700
12.2600 12.7800 11.8200 11.9700 81,100
12.5700 12.6350 12.1400 12.2400 59,000
12.7800 13.0400 12.2800 12.4900 88,000
Weekend
Weekend
13.1300 13.5490 12.8000 12.9100 67,400
13.6200 13.6900 13.2350 13.2600 48,600
13.7100 13.9800 13.2300 13.6800 41,300
13.1400 13.9000 13.1400 13.7300 79,700
13.1800 13.5970 12.6600 13.0700 70,400
Weekend
Weekend
13.0200 13.5600 13.0200 13.1800 45,700
13.7700 13.7700 12.8300 12.9600 63,900
20 · 8-K After-hours · 16:05 ET 8-K ↗
13.5000 14.1850 13.5000 13.9500 141,000
13.0300 13.2550 12.6300 13.2200 70,600
13.1100 13.7200 12.8760 13.1400 78,600
Weekend
Weekend
13.3400 13.3400 12.7200 13.2800 47,100
13.3900 13.9300 12.8900 13.2900 113,800
13.4400 13.5800 12.7900 13.3500 95,400
13.6100 14.0000 13.2750 13.3200 109,800
13.2400 13.7300 13.0000 13.4900 78,600
Weekend
Weekend
12.2400 13.3000 12.2400 13.2500 120,200
11.5000 12.2400 11.3800 12.1200 173,100
19 · 10-Q Pre-market · 07:08 ET 10-Q ↗ 18 · 8-K Pre-market · 07:04 ET 8-K ↗
11.4600 11.6950 11.1900 11.5000 105,800
10.9300 11.4100 10.5270 11.3500 132,400
10.4600 10.8800 10.2200 10.7400 94,700
Weekend
Weekend
10.5300 10.5300 9.7600 10.3700 115,200
10.2600 10.5910 10.0000 10.4500 129,700
10.5300 10.5650 9.9200 10.0700 132,300
10.8000 10.9300 10.2000 10.5000 154,000
10.9300 11.2500 10.2500 10.7200 131,200
Weekend
Weekend
11.6000 11.6000 10.6050 10.6400 147,000
11.4700 11.5800 11.0300 11.5300 138,200
11.8900 12.0700 11.5400 11.7000 133,400
12.0400 12.0900 11.6200 11.9600 233,700
12.3100 12.7000 11.2900 11.5000 232,400
Weekend
Weekend
11.8600 12.3600 11.5000 12.2500 169,800
12.9400 13.1300 12.1200 12.2800 198,000
13.2600 13.3900 12.5700 13.0300 133,100
13.5000 13.7600 12.6200 13.2700 199,900
14.4200 14.4600 13.1000 13.5000 193,500
Weekend
Weekend
14.3100 14.6700 13.3700 14.5600 233,800
14.7200 15.1600 14.0000 14.3000 163,500
14.2900 15.2000 14.0950 14.7200 199,800
14.0600 15.1000 13.8500 14.4900 245,200
13.9300 15.5500 13.8050 14.0600 463,600
Weekend
Weekend
No trading
13.8100 14.2500 13.1300 14.0000 324,600
13.1300 13.7800 12.7900 13.6500 181,300
13.2200 13.4800 12.6700 13.1800 109,000
12.6500 13.3950 12.3130 13.1950 166,100
Weekend
Weekend
12.0900 13.1400 12.0900 12.7000 788,700
13.5600 13.6100 11.9700 12.1700 243,600
13.7100 15.0900 13.0900 13.7700 448,900
13.5200 14.4900 13.5200 13.7100 479,600
12.9900 13.9500 12.6000 13.9000 378,200
Weekend
Weekend
No trading
11.3800 13.2900 11.2300 12.9900 736,200
10.7600 11.5000 10.7300 11.0500 143,400
11.6500 11.6900 10.5500 10.6600 221,500
11.8300 12.5050 11.5300 11.6600 244,800
Weekend
Weekend
10.5300 13.0700 10.5000 11.6100 315,500
17 · 8-K After-hours · 16:42 ET 8-K ↗
10.7000 10.9450 10.2500 10.5300 83,000
10.9200 11.5700 10.5700 10.5900 91,700
10.7800 11.2500 10.4900 10.9400 116,100
10.8200 11.1050 10.5200 10.5900 115,100
Weekend
Weekend
11.0900 11.2800 10.4640 10.7200 187,700
11.1500 11.6750 10.8300 11.1800 101,400
11.1200 11.1380 10.5000 11.0800 131,200
12.6300 12.6700 10.9700 11.0000 156,700
13.3800 13.4800 12.7170 12.9300 60,800
Weekend
Weekend
13.4800 13.5200 12.5900 13.4100 118,200
13.6100 13.9900 13.0800 13.4000 122,300
12.3000 13.8600 12.1320 13.7600 204,700
11.7000 12.6700 11.6900 12.3300 107,300
No trading
Weekend
Weekend
11.3200 12.1700 11.2500 11.6100 231,200
9.9100 11.2500 9.8800 11.2000 278,200
9.2500 10.0400 9.1200 10.0100 150,000
9.9200 9.9200 9.1300 9.1500 168,000
16 · 8-K Pre-market · 07:00 ET 8-K ↗
10.2800 10.7100 9.7000 9.9700 138,400
Weekend
Weekend
11.0000 11.0000 10.1400 10.1800 110,100
11.2700 11.5100 10.9700 11.0800 63,100
11.2900 11.3650 10.9300 11.2000 58,500
15 · 424B3 After-hours · 16:49 ET 424B3 ↗
11.4100 11.5650 10.8900 11.2200 118,100
12.1200 12.6750 11.4000 11.4600 129,600
Weekend
Weekend
12.7300 12.7300 11.6100 12.0500 252,700
13.0000 13.6500 12.6500 12.8900 99,900
14 · 10-Q Pre-market · 07:08 ET 10-Q ↗ 13 · 8-K Pre-market · 07:04 ET 8-K ↗
12.7200 13.5100 12.3400 13.3400 91,700
13.2100 13.3100 12.2500 12.5900 111,600
13.4500 13.7950 13.0200 13.0300 50,000
Weekend
Weekend
13.4400 13.8100 13.2000 13.5700 75,000
12.7300 13.7000 12.5600 13.4900 70,100
12.6700 12.9900 12.4160 12.6100 72,300
12.7400 13.1300 12.6800 12.8000 52,400
12.8600 13.4200 12.7700 12.8400 66,000
Weekend
Weekend
13.5400 13.7000 12.8300 12.8900 100,200
13.8700 14.1400 13.2700 13.5950 54,700
13.7000 14.0500 13.6000 13.9900 60,600
14.3900 14.3900 13.4500 13.4900 67,100
14.2100 14.5430 13.3300 14.2800 71,700
Weekend
Weekend
13.8300 14.4200 13.6300 14.3900 87,300
13.6800 13.6800 13.3300 13.4700 85,300
12 · DEFA14A Pre-market · 07:05 ET DEFA14A ↗ 11 · DEF 14A Pre-market · 07:00 ET DEF 14A ↗
13.8700 14.0690 13.3300 13.6800 77,300
13.7300 14.5450 13.6600 13.9300 145,900
12.6200 13.8750 12.6200 13.6900 117,600
Weekend
Weekend
13.1500 13.2600 12.5000 12.6800 80,700
13.2000 13.5000 13.0000 13.0800 111,200
14.4900 14.5000 13.1700 13.4600 129,700
13.5900 13.9700 13.0200 13.9100 176,700
14.0000 15.5550 13.6500 13.7900 754,700
Weekend
Weekend
No trading
12.3500 14.3600 12.0410 14.0000 303,700
11.4400 12.7000 11.4300 12.6500 278,700
10.5200 11.5000 10.3000 11.3200 311,600
10.4500 10.5200 9.9000 10.2800 245,500
Weekend
Weekend
10.8000 10.8700 10.2500 10.4000 127,100
10.7100 11.1000 10.5000 10.9100 121,600
10.8000 11.3800 10.7400 10.9200 228,300
11.1500 11.3100 10.5300 10.5800 122,200
11.0000 11.4600 11.0000 11.2700 159,400
Weekend
Weekend
10 · 424B5 After-hours · 17:03 ET 424B5 ↗
11.0200 11.0900 10.4800 10.7500 180,800
11.2600 11.3990 10.9100 11.0600 177,400
12.1300 12.2300 11.2800 11.4100 202,500
12.6200 12.6200 12.1500 12.3100 251,900
13.2300 13.7050 12.4500 12.6000 377,600
Weekend
Weekend
9 · S-3 After-hours · 17:05 ET S-3 ↗
13.7900 14.7900 12.5950 12.8000 1,097,300
8 · 10-K After-hours · 16:12 ET 10-K ↗ 7 · 8-K After-hours · 16:08 ET 8-K ↗
11.4600 11.9100 11.2700 11.5000 92,000
11.4300 11.9600 11.3500 11.7600 181,700
12.2300 12.7300 11.3400 11.4800 253,100
12.2500 13.6900 11.4300 12.3000 942,900
6 · 8-K Pre-market · 07:35 ET 8-K ↗
Weekend
Weekend
10.6200 11.3200 10.5600 11.1800 65,400
10.9200 11.3090 10.6070 10.9500 127,700
10.8900 11.4000 10.6000 11.1500 76,700
11.1400 11.2600 10.5600 10.7500 150,500
11.4800 11.8100 11.4000 11.5000 86,100
Weekend
Weekend
11.7400 12.2100 11.6800 12.1300 100,900
12.0700 12.4280 11.5100 12.1000 75,900
11.9600 12.4600 11.8500 12.1400 97,900
11.2800 12.5350 11.2800 11.9300 255,000
11.0700 11.6700 10.9300 11.2800 159,800
Weekend
Weekend
11.5600 12.0100 10.9000 11.1100 129,600
11.8600 12.1600 11.2500 11.7000 270,600
11.4300 11.5950 11.1360 11.2350 163,300
11.9600 12.2900 11.2740 11.4800 195,700
No trading
Weekend
Weekend
11.7300 11.8700 11.0600 11.1700 107,900
12.3000 12.4600 10.8100 11.7600 252,200
12.1400 12.2900 11.5700 12.2900 105,100
12.6300 12.7000 11.7800 12.1400 166,000
12.5700 12.8070 12.2310 12.7200 85,400
Weekend
Weekend
11.6400 12.7800 11.6400 12.5700 184,700
11.9800 12.4500 11.3300 11.5400 151,800
12.7600 12.9030 12.0320 12.2600 159,500
13.0000 13.5700 12.0550 12.7000 223,300
13.2000 13.6450 12.8050 13.0500 142,800
Weekend
Weekend
13.1200 13.8800 12.8700 13.3300 374,200
14.8000 14.9440 13.0050 13.3100 1,208,400
11.4200 12.3600 10.9700 11.6900 502,700
10.7000 11.4900 10.2500 10.7400 825,600
5 · 8-K Pre-market · 09:15 ET 8-K ↗
10.7000 10.8100 9.8800 10.7300 326,500
Weekend
Weekend
10.5800 10.9250 10.1850 10.7300 254,800
9.5500 10.6460 9.2200 10.5100 318,000
8.6200 9.4900 8.4900 9.4700 210,800
8.5000 8.9950 8.2890 8.5800 147,500
No trading
Weekend
Weekend
8.8500 9.1930 8.6000 8.7800 124,600
4 · 8-K After-hours · 16:05 ET 8-K ↗
8.9700 9.0000 8.5000 8.8000 165,700
9.0000 9.1400 8.7500 9.0000 92,200
9.0100 9.4500 8.6400 8.9900 107,500
9.4900 9.4900 8.6200 8.9400 183,700
Weekend
Weekend
9.2300 9.5850 9.0600 9.5000 265,100
8.4300 9.2300 8.3100 9.1500 277,800
8.3100 8.6350 8.1440 8.4900 281,400
7.8900 8.3500 7.8200 8.2600 175,900
8.0500 8.1380 7.8300 8.0000 108,700
Weekend
Weekend
8.0800 8.1400 7.8380 8.0500 150,000
No trading
7.8500 8.1380 7.7500 8.0100 122,800
7.9800 8.1300 7.7440 7.9000 163,800
8.0600 8.0850 7.7300 8.0100 188,200
Weekend
Weekend
8.3500 8.4000 8.0000 8.1200 99,900
No trading
8.3600 8.5900 8.1390 8.4100 80,500
8.1300 8.4800 7.9800 8.4000 339,600
7.9200 8.5400 7.8900 8.2100 216,900
Weekend
Weekend
7.8200 8.1700 7.7500 7.8800 183,600
3 · 8-K After-hours · 16:05 ET 8-K ↗
8.0500 8.3050 7.7150 7.8200 180,000
8.2900 8.5700 7.6300 7.9100 242,200
7.8600 8.4730 7.8000 8.2200 226,600
8.3700 8.4900 7.7300 7.9600 261,100
Weekend
Weekend
7.8600 8.8300 7.7850 8.2300 384,400
7.8100 7.9500 7.5000 7.9000 318,200
7.2300 7.9700 7.1600 7.8300 333,000
7.5200 7.7900 7.0800 7.2500 282,500
7.1400 7.5800 7.0400 7.5400 419,200
Weekend
Weekend
6.8200 7.2400 6.7300 7.0200 602,100
6.0200 7.0400 5.9200 6.8100 962,300
5.3000 6.0900 5.2300 6.0400 857,800
5.4200 5.4200 5.2040 5.2800 422,700
5.5300 5.5750 5.3400 5.3800 346,800
Weekend
Weekend
5.5700 5.7800 5.4500 5.7000 165,100
No trading
5.7300 5.7900 5.4200 5.5200 282,800
5.8700 6.0500 5.6100 5.7300 360,400
6.2600 6.3400 5.7580 5.9000 684,400
Weekend
Weekend
6.0200 6.3800 5.9350 6.2800 546,800
6.4100 6.5900 5.9900 5.9900 628,100
6.2700 6.4600 6.0800 6.4100 562,400
6.1200 6.3200 5.8200 6.2200 952,000
6.0800 6.5000 5.9100 6.1500 1,159,900
Weekend
Weekend
5.7700 6.5600 5.7000 6.0700 2,066,800
6.9900 7.1200 6.0400 6.5000 8,410,300
2 · 10-Q After-hours · 16:09 ET 10-Q ↗ 1 · 8-K After-hours · 16:08 ET 8-K ↗
33.0900 33.9150 31.2400 31.4200 3,535,300
32.5400 33.1100 30.2650 32.8000 116,700
34.8000 36.7900 31.7050 32.6200 104,400
Weekend
Weekend
31.8800 34.3000 30.2350 33.8400 115,700
32.3800 33.3300 31.4400 32.5700 107,400
34.2500 34.2500 31.1700 32.3500 221,700
36.0100 38.4210 33.6800 33.8500 151,400
40.9300 41.5500 36.4100 36.8200 185,000
Weekend
Weekend
37.1200 42.7000 36.0100 40.9100 343,100
38.6600 39.8400 36.4500 36.4500 79,600
40.3300 40.5000 38.0230 38.7850 104,000
39.6500 40.9700 38.5550 40.0800 113,900
38.9000 39.8500 37.8200 39.5800 116,400
Weekend
Weekend
37.2100 39.8800 36.4950 38.0900 251,700

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.

22 8-K 8-K (opens SEC filing in a new tab) After market open · 11:04 ET Summarise
21 8-K 8-K (opens SEC filing in a new tab) After-hours · 20:10 ET Summarise
20 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
19 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:08 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:04 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:42 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
15 424B3 424B3 (opens SEC filing in a new tab) After-hours · 16:49 ET Summarise
14 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:08 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:04 ET Summarise
12 DEFA14A DEFA14A (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
11 DEF 14A DEF 14A (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
10 424B5 424B5 (opens SEC filing in a new tab) After-hours · 17:03 ET Summarise
9 S-3 S-3 (opens SEC filing in a new tab) After-hours · 17:05 ET Summarise
8 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:35 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:15 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise