Nautilus Biotechnology, Inc NAUT

Open calendar →

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

Paper trade (simulated — no real money)

Fill: USD 3.2400 · FX 1 USD = 1.277900 SGD · about SGD 4.1404 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 1.22 → 3.24 · 165.6%
3.9502.4010.852 1,2 3 4,5 6,7,8,9 10 11,12 13,14 15 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
2.5700 3.2600 2.5700 3.2400 13,485,716
2.7200 2.8600 2.5350 2.6000 6,912,000
2.5000 2.8300 2.5000 2.7100 8,655,700
2.6150 2.7100 2.3800 2.5500 10,015,400
2.0300 2.6800 1.9700 2.6300 14,971,700
Weekend
Weekend
2.1700 2.2300 1.9900 2.0600 6,455,200
2.0700 2.2000 1.8800 2.1600 8,641,000
2.0000 2.1900 1.9100 2.1600 8,179,000
2.1250 2.3400 2.0000 2.0500 7,469,700
2.1650 2.2500 1.8600 2.1700 13,554,400
Weekend
Weekend
1.9300 2.4600 1.8500 2.2500 19,575,700
2.0000 2.0100 1.7500 1.8200 6,605,600
1.6700 2.1700 1.6200 1.9600 12,528,000
1.8900 2.0900 1.7250 1.7700 11,022,100
2.1850 2.4750 1.8100 1.8700 29,556,100
Weekend
Weekend
1.6500 1.9700 1.5980 1.9600 14,189,800
1.4300 1.6760 1.3800 1.5700 8,507,800
1.4600 1.4900 1.2900 1.4200 12,786,300
1.1900 1.5950 1.0800 1.3650 22,392,100
1.0000 1.1700 0.9900 1.1100 4,102,500
Weekend
Weekend
1.0000 1.0400 0.9620 0.9630 681,500
0.9400 1.0100 0.9400 0.9910 518,800
1.0000 1.0200 0.9500 0.9540 386,700
0.9600 1.0200 0.9500 0.9990 606,800
0.9650 0.9650 0.9000 0.9550 737,900
Weekend
Weekend
15 · 424B5 After-hours · 16:35 ET 424B5 ↗
0.9660 0.9980 0.9380 0.9660 1,780,500
1.0100 1.0300 0.9600 0.9720 676,500
0.9180 1.0000 0.9100 0.9720 1,145,000
0.9010 0.9680 0.8800 0.8910 945,000
1.0100 1.0200 0.9010 0.9060 1,233,400
Weekend
Weekend
14 · 8-K After-hours · 16:08 ET 8-K ↗ 13 · S-3 After-hours · 16:05 ET S-3 ↗
1.0000 1.0400 0.9940 1.0200 826,900
1.1200 1.1270 0.9730 0.9900 1,962,000
0.9440 1.1400 0.9320 1.1200 3,885,700
0.9070 0.9960 0.8900 0.9280 1,072,100
No trading
Weekend
Weekend
0.9080 0.9500 0.8900 0.9050 576,100
0.9800 0.9800 0.8950 0.9200 795,200
0.9410 0.9900 0.9200 0.9620 834,700
0.9610 0.9720 0.9150 0.9270 565,000
0.9000 0.9800 0.8900 0.9720 782,000
Weekend
Weekend
0.9000 0.9200 0.8720 0.8860 484,100
0.9500 0.9850 0.9000 0.9040 522,500
0.9220 0.9500 0.9100 0.9370 860,900
0.8900 0.9180 0.8610 0.8810 484,200
0.9800 0.9800 0.8620 0.8750 606,900
Weekend
Weekend
0.9200 0.9780 0.8900 0.9550 852,100
0.8900 0.9300 0.8760 0.9020 496,200
0.8850 0.9200 0.8700 0.9020 515,700
0.8810 0.8850 0.8450 0.8520 487,300
0.8800 0.9100 0.8600 0.8810 487,200
Weekend
Weekend
0.9000 0.9100 0.8600 0.8920 630,300
0.9120 0.9240 0.8820 0.8900 498,100
0.8910 0.9150 0.8750 0.9000 608,500
0.8880 0.9260 0.8650 0.8910 328,100
0.9100 0.9700 0.8600 0.8650 823,200
Weekend
Weekend
0.8860 0.9410 0.8410 0.9000 916,800
0.9410 0.9500 0.8640 0.8860 1,038,900
1.0000 1.0200 0.9200 0.9300 871,400
1.0200 1.0550 0.9800 0.9850 1,866,900
1.0000 1.0300 0.9650 1.0100 1,224,600
Weekend
Weekend
1.0200 1.0600 0.9500 0.9770 925,000
1.0400 1.0700 1.0000 1.0300 1,215,600
1.2100 1.2350 1.0200 1.0400 1,772,000
12 · 10-Q After-hours · 16:06 ET 10-Q ↗
1.6000 1.6300 1.1500 1.2000 2,127,000
11 · 8-K Next filing day · accepted 27 Jul, 19:29 ET 8-K ↗
1.7100 1.7400 1.6500 1.6600 436,500
Weekend
Weekend
1.7700 1.7850 1.6800 1.6900 624,400
1.7000 1.7900 1.7000 1.7700 528,600
1.6800 1.7200 1.6650 1.7000 425,000
1.6900 1.7200 1.6600 1.7000 409,100
1.7500 1.7900 1.6800 1.6900 307,000
Weekend
Weekend
1.6000 1.7700 1.5700 1.7400 870,900
1.7300 1.7350 1.6300 1.6400 532,800
1.7500 1.7850 1.7100 1.7400 385,500
1.8100 1.8200 1.7500 1.7500 554,100
1.8800 1.9050 1.7750 1.7800 846,900
Weekend
Weekend
2.0650 2.0650 1.8700 1.8900 1,710,300
1.8800 1.9450 1.8300 1.9000 2,249,700
1.6900 1.8200 1.6600 1.7800 968,100
1.7100 1.7300 1.6500 1.6900 647,800
1.7500 1.7550 1.6700 1.7200 808,700
Weekend
Weekend
No trading
1.8600 1.8800 1.6900 1.7300 810,200
1.8800 1.9950 1.8300 1.8400 2,348,700
1.8100 1.8900 1.7800 1.8700 803,200
2.0500 2.0700 1.7100 1.7900 2,101,900
Weekend
Weekend
2.2300 2.2450 1.8700 2.0000 7,704,500
2.3500 2.4450 2.2300 2.2700 556,400
2.3300 2.4100 2.3200 2.3600 388,600
2.2800 2.3950 2.2600 2.3300 311,800
2.2900 2.3400 2.2250 2.3100 446,600
Weekend
Weekend
No trading
10 · 8-K After-hours · 16:05 ET 8-K ↗
2.1700 2.2800 2.1100 2.2800 475,600
2.2100 2.2800 2.1500 2.1800 291,000
2.2500 2.2950 2.1600 2.1700 393,800
2.2900 2.3200 2.2450 2.2500 346,700
Weekend
Weekend
2.3200 2.3550 2.2050 2.2400 440,100
2.2800 2.3900 2.2500 2.2850 548,200
2.3100 2.4100 2.2600 2.2600 233,300
2.3600 2.4200 2.2900 2.3500 352,200
2.4500 2.4600 2.3000 2.3300 441,500
Weekend
Weekend
2.6500 2.6700 2.3650 2.3900 491,400
2.5700 2.7500 2.5500 2.6800 300,400
2.6900 2.7150 2.5750 2.5800 368,800
2.7200 2.7700 2.6450 2.6800 559,800
2.7600 2.8900 2.7200 2.7700 484,400
Weekend
Weekend
2.5800 2.7600 2.5200 2.7400 542,700
2.5500 2.6900 2.4900 2.6000 378,900
2.4600 2.6000 2.4000 2.5600 515,800
2.5400 2.6000 2.4050 2.4300 384,100
No trading
Weekend
Weekend
2.5900 2.6000 2.5000 2.5400 362,600
2.3800 2.5650 2.2900 2.5400 528,700
2.3700 2.4100 2.3100 2.3800 317,700
2.3600 2.4200 2.3000 2.3800 354,800
2.5300 2.5900 2.3500 2.3600 562,500
Weekend
Weekend
2.5900 2.5900 2.4700 2.5100 332,900
2.9200 2.9200 2.5500 2.6200 644,800
2.9500 3.1600 2.9200 2.9500 450,500
3.0100 3.0250 2.8700 2.9300 252,200
2.8600 3.0400 2.8200 3.0200 1,181,300
Weekend
Weekend
2.9000 2.9000 2.6700 2.6800 258,000
2.9600 3.0500 2.8400 2.8800 169,500
2.9000 2.9900 2.7300 2.9400 241,500
2.9400 3.0260 2.8100 2.8600 276,900
2.7100 3.0100 2.7100 2.8900 292,900
Weekend
Weekend
2.6600 2.7400 2.6300 2.7000 266,700
2.5300 2.6800 2.4850 2.6300 177,000
2.5800 2.6800 2.4300 2.5000 293,300
9 · DEFA14A After-hours · 16:10 ET DEFA14A ↗ 8 · DEF 14A After-hours · 16:09 ET DEF 14A ↗ 7 · 10-Q After-hours · 16:07 ET 10-Q ↗
2.7700 2.8180 2.4600 2.5900 351,600
6 · 8-K Next filing day · accepted 27 Apr, 20:19 ET 8-K ↗
2.6300 2.8400 2.5700 2.5700 322,800
Weekend
Weekend
2.6200 2.7050 2.5300 2.6200 286,300
2.8300 2.8300 2.5500 2.5800 331,700
2.8200 2.8790 2.6800 2.8700 359,400
2.9500 2.9500 2.7300 2.7800 244,400
3.0000 3.0300 2.9150 2.9600 151,900
Weekend
Weekend
3.2000 3.2000 2.9100 3.0300 203,800
3.2400 3.2800 2.9150 3.1250 484,800
3.0300 3.2750 3.0300 3.2500 281,000
3.0000 3.1250 2.9600 3.0600 295,200
2.9600 3.0900 2.9200 2.9700 306,800
Weekend
Weekend
3.0700 3.1750 2.8300 2.9500 393,000
3.1300 3.2700 3.0300 3.0400 295,100
3.3500 3.3950 3.1000 3.1300 349,800
3.2900 3.3650 3.0500 3.1200 404,600
3.3000 3.4690 3.2600 3.3500 197,200
Weekend
Weekend
No trading
3.2300 3.4300 3.1200 3.3050 218,100
3.8700 4.0500 3.3500 3.3550 468,700
3.5100 3.9400 3.5100 3.8800 387,900
3.4900 3.6000 3.2500 3.4300 289,900
Weekend
Weekend
3.7000 3.7000 3.2500 3.4800 432,000
3.8200 3.8830 3.4000 3.7800 454,100
4.0000 4.3100 3.7620 3.9100 1,009,700
3.7100 3.9790 3.5000 3.9500 1,164,200
3.0300 3.7500 2.9500 3.6200 1,099,200
Weekend
Weekend
2.8100 3.0650 2.6800 3.0300 500,500
2.7100 2.8500 2.6250 2.7500 218,100
2.6500 2.7800 2.6000 2.7400 213,100
2.4000 2.6700 2.3600 2.6500 201,900
2.3600 2.5300 2.3450 2.3900 115,800
Weekend
Weekend
2.2600 2.3800 2.2100 2.3300 144,100
2.4000 2.4000 2.2200 2.2900 246,500
2.4400 2.4890 2.2800 2.4200 108,600
2.5300 2.7050 2.4000 2.4300 208,200
2.4500 2.5570 2.3800 2.5100 248,600
Weekend
Weekend
2.4800 2.5700 2.3630 2.4700 89,200
2.7000 2.8000 2.4250 2.4400 212,900
2.4100 2.6800 2.4100 2.6200 165,700
2.2700 2.4900 2.2200 2.4100 261,800
2.3100 2.3900 2.1700 2.3200 219,200
Weekend
Weekend
2.4200 2.4600 2.3350 2.4200 139,200
5 · 10-K After-hours · 16:11 ET 10-K ↗
3.0200 3.0200 2.2640 2.4200 309,400
4 · 8-K Next filing day · accepted 25 Feb, 18:46 ET 8-K ↗
2.9400 3.0800 2.7700 2.8900 331,800
2.7400 2.9000 2.7230 2.8400 286,800
2.8100 2.8900 2.6200 2.7000 160,100
Weekend
Weekend
2.8900 2.8900 2.7000 2.8200 171,200
2.6400 2.9300 2.5530 2.8900 188,900
2.7300 2.8530 2.5300 2.6800 376,900
2.1900 2.7100 2.1800 2.6900 711,900
No trading
Weekend
Weekend
2.1500 2.2700 2.1000 2.1900 142,100
2.1400 2.1900 2.0200 2.1300 140,200
2.1300 2.1900 1.9700 2.1600 186,000
2.1400 2.1900 2.0150 2.1200 121,900
2.0200 2.2000 2.0100 2.1600 169,300
Weekend
Weekend
2.0300 2.0800 1.9700 2.0300 154,300
2.0600 2.1400 1.9600 2.0200 166,800
2.1400 2.1400 1.9800 2.0800 138,900
2.0300 2.1600 2.0200 2.1400 260,200
1.9300 2.0600 1.9250 2.0100 101,100
Weekend
Weekend
1.9200 2.0050 1.8750 1.9500 152,400
2.0600 2.1500 1.9100 1.9400 164,300
2.2500 2.2500 2.0500 2.0600 217,100
2.0200 2.2500 2.0100 2.2300 111,900
2.0700 2.1090 2.0000 2.0300 152,400
Weekend
Weekend
2.2800 2.3000 2.0550 2.0700 227,500
2.2000 2.2950 2.1560 2.2700 139,800
2.0500 2.2000 2.0500 2.1800 200,500
1.9350 2.1450 1.9200 2.0500 167,800
No trading
Weekend
Weekend
1.8300 2.0300 1.7500 2.0000 455,200
1.9200 1.9200 1.8200 1.8300 168,100
1.9400 1.9800 1.8950 1.9200 326,800
2.0100 2.0300 1.8910 1.9600 301,800
2.0500 2.0700 1.9300 1.9900 139,200
Weekend
Weekend
2.2300 2.2400 2.0200 2.0600 348,700
2.2300 2.2900 2.1300 2.2200 215,900
1.9000 2.2200 1.8900 2.2200 556,200
1.8800 1.9300 1.8650 1.8700 94,100
1.9400 1.9400 1.8550 1.8900 87,000
Weekend
Weekend
1.9400 1.9900 1.9000 1.9100 130,700
No trading
1.9100 1.9900 1.9100 1.9500 137,500
1.9400 1.9550 1.8850 1.9100 186,200
1.9600 2.0470 1.9100 1.9400 139,400
Weekend
Weekend
1.9900 2.0200 1.9450 1.9800 172,300
No trading
1.9500 2.0000 1.9300 2.0000 52,300
1.9800 1.9800 1.9100 1.9500 103,900
1.9400 2.0300 1.9330 1.9800 167,800
Weekend
Weekend
1.9500 1.9800 1.8660 1.9400 276,800
1.8900 2.1150 1.8600 1.9400 297,100
1.8000 1.8900 1.7800 1.8600 200,100
1.8900 1.9400 1.7900 1.8100 290,200
1.8700 2.0400 1.8600 1.9000 548,900
Weekend
Weekend
2.0300 2.0300 1.8450 1.8500 247,600
2.0300 2.1250 1.9800 1.9800 187,700
2.0600 2.0900 1.9610 2.0400 357,900
2.0500 2.1390 2.0000 2.0400 258,600
2.0200 2.1400 1.9200 2.0300 223,400
Weekend
Weekend
2.1000 2.1000 1.9250 2.0300 254,900
2.0800 2.1800 2.0000 2.0700 313,700
1.9800 2.0800 1.9300 2.0800 83,200
1.9700 2.0300 1.9250 1.9800 177,000
2.2400 2.2400 1.8400 1.9800 480,000
Weekend
Weekend
2.3500 2.3500 2.1900 2.2500 114,800
No trading
2.1900 2.3000 2.1000 2.2700 287,100
2.0900 2.2300 2.0900 2.1900 213,200
2.2000 2.2600 2.0000 2.0700 451,500
Weekend
Weekend
2.1900 2.2400 2.0670 2.2400 252,900
2.4100 2.5400 2.1000 2.1150 565,400
2.2200 2.4700 2.2200 2.4100 886,600
1.8700 2.2500 1.8500 2.2100 797,900
1.8200 2.0000 1.8000 1.9000 293,200
Weekend
Weekend
1.9000 1.9050 1.7300 1.8000 294,300
1.7400 1.9100 1.6700 1.8900 421,400
1.6800 1.7400 1.6000 1.7300 293,600
1.7100 1.7400 1.6050 1.6600 522,400
1.5600 1.6900 1.5100 1.6600 242,000
Weekend
Weekend
1.4800 1.5300 1.4100 1.5100 206,800
1.5300 1.6000 1.4600 1.5100 201,900
1.6100 1.6100 1.4400 1.5100 415,800
1.6600 1.8300 1.5000 1.5900 1,082,300
3 · 8-K Next filing day · accepted 03 Nov, 17:32 ET 8-K ↗
1.3500 1.8700 1.3300 1.8500 2,908,300
Weekend
Weekend
1.4100 1.4530 1.2800 1.3300 199,400
1.3900 1.4500 1.3100 1.4100 349,400
1.4200 1.6300 1.3600 1.4100 797,000
2 · 10-Q After-hours · 16:11 ET 10-Q ↗
1.3500 1.5200 1.2800 1.4300 1,497,200
1 · 8-K Next filing day · accepted 27 Oct, 17:48 ET 8-K ↗
1.2200 1.3550 1.2100 1.3500 805,300
Weekend
Weekend
1.4900 1.4900 1.2110 1.2200 801,100

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.

15 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:35 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
13 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
12 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 27 Jul, 19:29 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
9 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
8 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
7 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 27 Apr, 20:19 ET Summarise
5 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 25 Feb, 18:46 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 03 Nov, 17:32 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 27 Oct, 17:48 ET Summarise