Revelation Biosciences, Inc REVB

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

Paper trade (simulated — no real money)

Fill: USD 3.7900 · FX 1 USD = 1.277900 SGD · about SGD 4.8432 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 5.08 → 3.79 · -25.4%
5.7973.1410.485 1 2 3,4 5 6 7 8 9 10 11 12 13,14 15 16 17,18 19 20 21 22 23,24 25 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
3.7600 3.8800 3.6600 3.7900 16,224
3.6700 3.8500 3.6010 3.6800 35,500
3.7500 3.9700 3.5100 3.6000 19,500
3.3000 4.0600 3.2940 3.7500 156,000
3.5000 3.5700 3.0800 3.2830 43,643
Weekend
Weekend
0.7050 0.7050 0.4670 0.4850 635,200
5.2150 5.4600 5.1100 5.3340 2,943
0.7300 0.7650 0.7100 0.7200 22,800
0.7600 0.7700 0.7300 0.7300 26,800
0.7990 0.7990 0.7700 0.7750 12,600
Weekend
Weekend
0.7720 0.8160 0.7500 0.7600 24,800
0.8100 0.8100 0.7700 0.7740 65,000
5.2846 5.8548 5.2846 5.7967 7,284
0.7940 0.7970 0.7500 0.7520 34,700
0.7910 0.8300 0.7610 0.7770 90,600
Weekend
Weekend
0.8100 0.8100 0.7640 0.7640 43,900
0.8200 0.8360 0.7900 0.8010 60,800
0.8260 0.8450 0.8170 0.8170 30,200
0.8790 0.8790 0.8110 0.8140 53,000
0.8800 0.8850 0.8300 0.8590 33,200
Weekend
Weekend
0.8900 0.9090 0.8500 0.8700 43,400
0.9200 0.9380 0.8600 0.8700 71,900
0.9660 0.9790 0.9200 0.9340 58,700
1.0000 1.0200 0.9590 0.9800 26,400
0.9700 1.0100 0.9300 0.9760 17,600
Weekend
Weekend
0.9780 0.9840 0.9300 0.9300 15,800
0.9250 0.9700 0.9200 0.9500 29,600
0.9690 0.9690 0.9190 0.9200 15,600
0.9850 0.9850 0.9100 0.9100 36,400
0.9900 0.9900 0.9550 0.9550 14,700
Weekend
Weekend
1.0000 1.0000 0.9900 0.9920 3,600
1.0000 1.0000 0.9990 0.9990 4,900
1.0200 1.0200 1.0050 1.0100 2,600
1.0000 1.0400 1.0000 1.0100 16,000
No trading
Weekend
Weekend
1.0150 1.0400 0.9900 1.0100 7,700
1.0300 1.0400 0.9900 1.0100 20,000
0.9900 1.0400 0.9900 1.0000 18,000
1.0110 1.0330 0.9820 0.9870 25,200
1.0600 1.0600 1.0000 1.0000 12,900
Weekend
Weekend
1.0400 1.0800 1.0000 1.0500 20,000
0.9720 1.0300 0.9550 1.0300 20,500
0.9800 1.0100 0.9500 0.9550 36,400
1.0900 1.1000 0.9100 1.0000 197,400
1.1000 1.1200 1.0600 1.1000 49,700
Weekend
Weekend
1.1000 1.1000 1.0600 1.0900 8,800
1.1200 1.1400 1.0700 1.0700 22,200
25 · 8-K After-hours · 17:07 ET 8-K ↗
1.1600 1.2000 1.0900 1.1100 166,500
1.1450 1.1600 1.0700 1.1100 76,000
1.0900 1.1500 1.0500 1.1500 66,900
Weekend
Weekend
1.1400 1.1400 1.0340 1.0490 31,200
1.1100 1.1200 1.1000 1.1100 8,100
1.1000 1.1250 1.1000 1.1100 4,500
1.1450 1.1450 1.1000 1.1300 15,200
1.1800 1.2170 1.1200 1.1300 34,500
Weekend
Weekend
1.0300 1.2000 1.0300 1.1400 25,600
24 · 8-K After-hours · 16:19 ET 8-K ↗ 23 · 10-Q After-hours · 16:07 ET 10-Q ↗
1.1300 1.1520 1.1200 1.1200 6,000
1.1400 1.1800 1.1250 1.1500 22,600
1.0700 1.1500 1.0450 1.1300 33,700
0.9980 1.0290 0.9750 1.0200 30,300
Weekend
Weekend
1.0000 1.0100 0.9500 0.9500 23,700
1.0000 1.0000 0.9910 0.9950 31,900
1.0900 1.0900 0.9290 0.9650 46,800
1.0800 1.1000 1.0380 1.0380 2,200
1.0600 1.0970 1.0400 1.0600 8,600
Weekend
Weekend
1.0500 1.0800 1.0300 1.0600 31,800
1.1200 1.1200 1.0500 1.0700 22,800
1.1500 1.1600 1.1100 1.1500 14,300
1.1700 1.2100 1.1000 1.1500 51,800
1.1800 1.2000 1.1550 1.1600 22,200
Weekend
Weekend
1.1200 1.1900 1.0700 1.1800 39,500
1.1000 1.2250 1.0800 1.1300 197,900
1.0500 1.1100 1.0500 1.0900 106,900
0.9700 1.1100 0.9700 1.0400 94,800
22 · 8-K After-hours · 16:05 ET 8-K ↗
1.0200 1.0200 0.9870 0.9870 18,900
Weekend
Weekend
0.9900 1.0050 0.9800 1.0000 34,600
0.9650 1.0000 0.9500 0.9750 35,200
0.9860 0.9900 0.9590 0.9680 19,200
1.0200 1.0500 0.9900 0.9900 28,600
1.0500 1.1000 1.0000 1.0200 117,300
Weekend
Weekend
No trading
1.0800 1.1100 1.0500 1.0800 103,200
1.0200 1.0600 1.0200 1.0400 25,200
1.0400 1.0710 1.0300 1.0300 14,600
0.9600 1.0700 0.9500 1.0400 38,300
Weekend
Weekend
0.9600 1.0100 0.9520 0.9800 14,800
1.0100 1.0300 0.9500 0.9600 32,700
21 · 8-K After-hours · 16:47 ET 8-K ↗
1.0600 1.0700 1.0200 1.0300 19,300
1.0440 1.0500 1.0300 1.0500 9,800
1.0300 1.0500 1.0100 1.0500 52,000
Weekend
Weekend
No trading
1.0800 1.1000 0.9800 0.9800 66,200
1.0100 1.1000 0.9600 1.0700 110,800
1.0000 1.0000 0.9520 0.9610 31,000
1.0200 1.0600 0.9890 0.9910 89,400
Weekend
Weekend
1.0300 1.0300 0.9950 0.9960 36,100
1.0080 1.0400 1.0080 1.0100 23,500
1.0200 1.0500 0.9900 1.0300 37,500
1.0000 1.0500 1.0000 1.0400 49,000
1.0200 1.0360 0.9800 1.0100 23,100
Weekend
Weekend
1.0200 1.0500 0.9900 0.9900 108,300
1.0200 1.0600 1.0140 1.0550 36,000
1.0700 1.0700 0.9890 1.0400 69,300
1.0800 1.0850 1.0500 1.0600 52,400
20 · 8-K After-hours · 17:26 ET 8-K ↗
1.1000 1.1100 1.0600 1.0900 32,400
Weekend
Weekend
1.1000 1.1070 1.0800 1.0950 35,100
1.0900 1.1100 1.0700 1.1000 32,000
1.0600 1.1100 1.0550 1.0900 47,400
1.0900 1.0900 1.0600 1.0600 9,600
No trading
Weekend
Weekend
1.0700 1.0850 1.0600 1.0700 16,100
1.0800 1.1100 1.0700 1.0800 18,000
1.0400 1.0950 1.0200 1.0900 31,400
1.0300 1.0450 0.9930 1.0300 23,100
1.0200 1.0580 0.9800 1.0400 84,100
Weekend
Weekend
1.0220 1.0300 0.9600 0.9790 90,800
1.0300 1.0700 1.0300 1.0300 27,200
1.0300 1.0700 1.0300 1.0500 15,300
0.9750 1.1000 0.9750 1.0400 102,000
19 · DEF 14A After market open · 09:56 ET DEF 14A ↗
0.9500 1.0000 0.8750 0.9780 126,400
Weekend
Weekend
1.0000 1.0200 0.9500 0.9600 229,000
18 · 8-K After-hours · 16:23 ET 8-K ↗ 17 · 10-Q After-hours · 16:06 ET 10-Q ↗
1.0100 1.0600 1.0000 1.0200 55,100
1.0200 1.0700 1.0200 1.0200 103,500
1.0780 1.1100 1.0500 1.0700 48,300
1.1100 1.1200 1.0400 1.0800 72,700
Weekend
Weekend
1.1400 1.1400 1.1000 1.1200 28,300
16 · PRE 14A After-hours · 16:31 ET PRE 14A ↗
1.1400 1.1680 1.0900 1.1300 51,000
1.1800 1.1800 1.1400 1.1500 42,000
1.1800 1.1800 1.1400 1.1600 19,300
1.1650 1.1800 1.1400 1.1500 21,000
Weekend
Weekend
1.1650 1.1800 1.1500 1.1700 28,800
1.1800 1.1900 1.1300 1.1600 73,100
1.1500 1.1800 1.1500 1.1600 18,800
1.1800 1.2800 1.1600 1.1600 76,500
1.1500 1.1700 1.1100 1.1600 115,100
Weekend
Weekend
1.1800 1.2100 0.9900 1.1450 431,300
1.2600 1.2970 1.2000 1.2000 118,500
1.2010 1.2670 1.1800 1.2600 62,400
1.2200 1.2300 1.2000 1.2000 43,100
1.1900 1.2100 1.1700 1.1900 24,100
Weekend
Weekend
1.2300 1.2450 1.1400 1.1700 94,200
1.2200 1.2800 1.1850 1.2300 63,500
1.1500 1.2700 1.1300 1.2100 112,800
1.1500 1.1650 1.1000 1.1300 35,700
1.2000 1.2250 1.1200 1.1600 134,700
Weekend
Weekend
No trading
1.2000 1.2500 1.2000 1.2500 52,800
1.2300 1.2300 1.1800 1.2300 44,000
1.2200 1.2700 1.1800 1.2000 115,900
1.1150 1.2200 1.0600 1.1900 237,800
Weekend
Weekend
1.1300 1.1680 1.1100 1.1300 34,900
1.1800 1.1930 1.1200 1.1300 27,900
1.1700 1.1900 1.1200 1.1800 125,800
1.1860 1.1950 1.1200 1.1200 57,100
1.1900 1.2300 1.1500 1.2200 35,300
Weekend
Weekend
1.1800 1.2300 1.1700 1.1900 33,300
15 · 8-K After-hours · 16:18 ET 8-K ↗
1.2500 1.2500 1.1400 1.2000 82,100
1.2000 1.2500 1.1800 1.2200 49,900
1.2500 1.2600 1.2000 1.2100 51,600
1.2400 1.2700 1.2100 1.2400 68,900
Weekend
Weekend
1.2200 1.2700 1.2000 1.2550 78,400
1.3400 1.3400 1.2000 1.2300 102,800
1.3400 1.4280 1.3000 1.3500 85,700
1.2930 1.3600 1.2600 1.3400 95,200
1.3000 1.3000 1.2400 1.2800 49,000
Weekend
Weekend
1.2500 1.3300 1.2160 1.2900 80,500
1.2800 1.2900 1.2100 1.2400 36,400
1.2500 1.2800 1.2100 1.2500 73,200
1.2500 1.2500 1.1900 1.2300 92,800
1.2900 1.3300 1.2600 1.2900 110,100
Weekend
Weekend
1.3400 1.3550 1.3000 1.3200 65,500
14 · 8-K After-hours · 16:25 ET 8-K ↗ 13 · 10-K After-hours · 16:06 ET 10-K ↗
1.3800 1.4000 1.3100 1.3300 128,000
1.3200 1.4100 1.3200 1.4100 137,100
1.3900 1.3900 1.3300 1.3500 64,300
1.4000 1.4300 1.2900 1.3900 131,000
Weekend
Weekend
1.3900 1.4800 1.3760 1.4200 128,700
1.4100 1.4600 1.3600 1.4000 135,400
1.3800 1.4600 1.3500 1.4100 116,700
12 · DEF 14A After market open · 12:35 ET DEF 14A ↗
1.4800 1.4900 1.3900 1.4000 196,300
No trading
Weekend
Weekend
1.4800 1.5600 1.4700 1.4700 138,500
1.5100 1.5700 1.4300 1.4600 118,000
11 · 424B3 After-hours · 17:30 ET 424B3 ↗
1.5400 1.5950 1.4600 1.5000 246,200
1.5380 1.6290 1.4600 1.5400 295,900
1.5800 1.5880 1.4700 1.5200 219,900
Weekend
Weekend
10 · PRE 14A After-hours · 16:32 ET PRE 14A ↗
1.4900 1.6690 1.4100 1.6500 720,900
1.5700 1.5900 1.4500 1.4700 381,200
1.7600 1.8600 1.5770 1.5900 988,600
1.8800 1.9100 1.6100 1.6700 415,500
1.9100 1.9600 1.8100 1.8800 233,900
Weekend
Weekend
9 · S-3 After-hours · 16:05 ET S-3 ↗
1.9000 2.1300 1.8500 2.0300 426,300
1.9800 2.0200 1.7800 1.9000 779,100
8 · 8-K Next filing day · accepted 28 Jan, 18:46 ET 8-K ↗
2.0000 2.3200 1.8500 2.0900 1,427,600
2.0280 2.2000 1.8800 2.0920 692,800
2.2000 2.4280 2.2000 2.2000 2,416,300
Weekend
Weekend
4.3200 5.8000 2.3960 2.5840 23,169,475
3.2280 4.7600 3.2160 3.4160 3,272,825
7 · 8-K Next filing day · accepted 21 Jan, 19:01 ET 8-K ↗
3.4400 3.4400 2.8280 3.3600 1,370,550
3.7600 3.7960 3.6400 3.7360 15,525
No trading
Weekend
Weekend
3.7200 3.8200 3.6000 3.7960 19,150
3.6000 3.6320 3.5600 3.6000 9,200
3.7200 3.7200 3.5600 3.6000 27,725
3.6000 3.7120 3.5760 3.6200 17,025
3.6000 3.6200 3.5040 3.6000 13,050
Weekend
Weekend
3.6160 3.7000 3.5280 3.6000 28,350
3.7200 3.7200 3.5760 3.6000 13,650
3.6000 3.7200 3.4800 3.6400 39,800
3.3520 3.7200 3.2400 3.6800 53,675
3.3280 3.3560 3.0800 3.3560 22,925
Weekend
Weekend
3.1200 3.2880 3.0800 3.2520 19,475
No trading
3.3280 3.3320 3.0400 3.2000 44,425
3.5200 3.5200 3.3080 3.3280 25,350
3.4800 3.6000 3.4040 3.5280 32,850
Weekend
Weekend
3.4800 3.4800 3.4000 3.4400 13,525
No trading
3.5520 3.5880 3.4400 3.4800 6,900
3.4400 3.5720 3.4000 3.4400 11,800
3.5200 3.5600 3.4000 3.4320 22,050
Weekend
Weekend
3.6360 3.6480 3.4400 3.5720 45,150
3.8000 3.8400 3.6040 3.6040 18,900
3.8320 3.9640 3.7200 3.7240 26,250
3.8400 3.9720 3.8000 3.9320 12,950
4.1600 4.4000 3.7200 3.8400 33,475
Weekend
Weekend
4.7600 4.7600 4.0400 4.2000 61,225
4.6000 4.8000 4.4000 4.6000 59,500
4.3600 4.5200 4.1200 4.3600 40,850
4.3600 4.4000 4.1600 4.2400 18,525
4.3200 4.3600 4.0400 4.2200 20,100
Weekend
Weekend
4.0800 4.3600 4.0000 4.1400 21,125
3.8720 4.3600 3.7600 4.0000 41,000
6 · 8-K After-hours · 17:01 ET 8-K ↗
3.6720 4.0000 3.6000 3.8120 26,925
3.7200 3.8080 3.6040 3.7880 7,575
3.8800 4.0000 3.7000 3.8240 8,875
Weekend
Weekend
3.7400 3.9600 3.7200 3.8200 11,650
No trading
3.3800 3.8000 3.3400 3.7320 32,600
3.4000 3.4520 3.3560 3.3560 16,575
3.4560 3.5280 3.3240 3.4000 22,200
Weekend
Weekend
3.3880 3.5200 3.3240 3.4160 15,000
3.4600 3.6400 3.3200 3.4000 56,550
3.5080 3.6000 3.4000 3.4160 30,050
3.4800 3.5320 3.3600 3.4400 14,950
3.5960 3.8000 3.5040 3.5320 29,250
Weekend
Weekend
3.5680 3.8320 3.3600 3.5960 42,950
3.9200 4.0960 3.6400 3.6480 53,875
4.0400 4.3200 3.8800 3.9280 39,050
4.0400 4.1400 3.9200 4.0000 24,125
5 · DEF 14A After market open · 14:57 ET DEF 14A ↗
3.9560 4.3480 3.9560 4.1600 48,775
Weekend
Weekend
3.9600 4.0240 3.8600 3.9240 17,400
4 · 8-K After-hours · 16:28 ET 8-K ↗ 3 · 10-Q After-hours · 16:03 ET 10-Q ↗
4.3200 4.3200 3.8400 4.0400 48,725
4.3600 4.4000 4.0800 4.3200 36,375
4.6800 4.7200 4.2800 4.4000 39,575
4.9200 5.0000 4.6800 4.8000 21,175
Weekend
Weekend
4.9600 5.1200 4.9200 5.0000 17,575
5.0400 5.1600 5.0000 5.0000 12,250
2 · PRE 14A Pre-market · 09:19 ET PRE 14A ↗ 1 · 8-K After-hours · 16:20 ET 8-K ↗
5.3600 5.4400 5.1200 5.1200 13,675
5.1200 5.5200 4.9200 5.3600 33,075
5.0800 5.2800 5.0000 5.1600 19,050
Weekend
Weekend
4.8400 5.2000 4.7720 5.0800 37,150

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.

25 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise
24 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:19 ET Summarise
23 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
22 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
21 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:47 ET Summarise
20 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:26 ET Summarise
19 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 09:56 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
17 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
16 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:18 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
13 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
12 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 12:35 ET Summarise
11 424B3 424B3 (opens SEC filing in a new tab) After-hours · 17:30 ET Summarise
10 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:32 ET Summarise
9 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 28 Jan, 18:46 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 21 Jan, 19:01 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:01 ET Summarise
5 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 14:57 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
2 PRE 14A PRE 14A (opens SEC filing in a new tab) Pre-market · 09:19 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise