Revelation Biosciences, Inc REVB

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Revelation Biosciences, Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 1.0600 · FX 1 USD = 1.290100 SGD · about SGD 1.3675 per unit

Sign in to place simulated trades. 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 10.76 → 1.06 · -90.1%
11.7206.3400.960 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 26 27,28 29 30 31 32 Jul 25Oct 25Jan 26Apr 26Jul 26

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

Price & SEC Filing History 26 Jul 2025 — 27 Jul 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.

No data yet
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
32 · 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
31 · 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
30 · 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
29 · 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
28 · 8-K After-hours · 16:23 ET 8-K ↗ 27 · 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
26 · 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
25 · 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
24 · 8-K After-hours · 16:25 ET 8-K ↗ 23 · 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
22 · 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
21 · 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
20 · 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
19 · 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
18 · 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
17 · 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
16 · 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
15 · 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
14 · 8-K After-hours · 16:28 ET 8-K ↗ 13 · 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
12 · PRE 14A Pre-market · 09:19 ET PRE 14A ↗ 11 · 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
4.6400 4.8800 4.6000 4.8400 31,800
5.0000 5.0000 4.6000 4.7200 51,075
5.0400 5.1200 4.8000 5.0000 25,600
5.1200 5.2600 4.9600 5.0400 31,200
Weekend
Weekend
5.2400 5.3560 5.0000 5.1600 30,325
5.4000 5.6000 5.2000 5.3200 37,325
10 · 8-K After-hours · 17:06 ET 8-K ↗
5.4400 5.6400 5.2800 5.4400 37,225
5.4000 5.4800 5.3200 5.4400 24,175
5.6400 5.6400 5.1000 5.3600 73,450
Weekend
Weekend
5.9600 5.9600 5.6000 5.6800 61,575
6.0000 6.2400 5.8000 5.8800 72,200
5.8400 6.7600 5.8000 5.8800 187,125
5.7600 5.9640 5.6400 5.8400 35,050
6.0800 6.2000 5.5800 5.7200 41,025
Weekend
Weekend
6.2000 6.3200 5.8400 6.0000 53,100
5.8400 6.3600 5.7200 6.1200 60,900
5.6400 6.0400 5.6400 5.8400 37,050
9 · 424B3 After-hours · 17:13 ET 424B3 ↗
5.6800 5.7200 5.4000 5.6800 48,600
8 · S-3/A Next filing day · accepted 29 Sep, 18:34 ET S-3/A ↗
5.7600 5.7600 5.5600 5.7200 37,500
Weekend
Weekend
5.6000 5.9400 5.5200 5.7200 55,450
5.9200 6.0400 5.6000 5.6000 60,450
5.8400 6.2000 5.7600 5.9200 69,950
6.0000 6.0400 5.7600 5.8800 72,725
7 · DEF 14A After-hours · 16:15 ET DEF 14A ↗
6.2400 6.3000 6.0200 6.0800 59,000
Weekend
Weekend
6.3200 6.3960 6.1600 6.1600 62,925
6.2000 6.5200 6.0000 6.2400 96,850
6.3600 6.4400 6.0000 6.2000 92,800
6 · S-3 After-hours · 17:18 ET S-3 ↗
6.1200 6.6000 6.1200 6.3200 116,775
5 · 8-K After-hours · 17:02 ET 8-K ↗
7.6000 7.6000 6.0000 6.2400 164,225
Weekend
Weekend
4 · PRE 14A After-hours · 16:08 ET PRE 14A ↗
8.0000 8.0400 7.6000 7.6800 65,750
8.2800 8.4000 7.8400 8.0000 247,975
10.8400 11.6000 9.2800 9.8800 3,238,575
9.7200 9.8720 8.8000 9.3200 292,750
3 · 8-K Pre-market · 08:02 ET 8-K ↗
11.5200 11.5400 10.7240 11.2800 21,175
Weekend
Weekend
11.4800 11.5200 11.0000 11.4800 21,900
10.9760 11.3200 10.6000 11.2000 20,875
10.9200 11.2000 10.6400 10.9200 11,400
10.8000 11.0000 10.4400 10.8000 11,900
No trading
Weekend
Weekend
11.4000 11.4000 10.8000 11.0400 17,025
11.0400 11.5200 10.7640 11.1600 5,225
10.7600 11.2000 10.2400 10.9200 22,300
11.5160 11.5160 10.0000 11.1520 32,100
11.5200 11.5200 11.0400 11.3800 15,950
Weekend
Weekend
10.8000 11.7200 10.4960 11.7200 48,550
10.0800 10.5200 10.0000 10.1600 11,750
10.0800 10.3200 9.7200 10.1200 16,450
10.8400 11.0600 9.8800 10.1200 40,300
10.4800 11.2000 10.4800 10.8400 24,000
Weekend
Weekend
10.3600 10.4760 10.1200 10.3200 14,575
10.0400 10.4000 9.5600 10.3200 29,825
9.6800 10.2000 9.6800 10.0800 26,325
9.5200 9.9600 9.5200 9.6800 6,200
9.5200 10.0400 9.0400 9.5200 13,525
Weekend
Weekend
9.9200 10.3200 9.4000 9.5200 51,550
2 · 8-K Pre-market · 08:10 ET 8-K ↗ 1 · 10-Q Next filing day · accepted 07 Aug, 18:05 ET 10-Q ↗
9.6800 10.4000 9.6800 10.2000 13,925
10.2800 10.5600 9.8640 10.0000 17,450
10.2000 10.8000 10.1600 10.3600 9,425
9.8800 10.3880 9.6800 10.1600 26,050
Weekend
Weekend
9.8000 9.9200 9.5200 9.7600 22,325
9.8000 10.2240 9.4800 9.9600 25,525
9.8000 11.5200 9.3200 9.8000 175,775
10.5600 10.6600 9.2400 9.5000 101,325
11.5600 11.6400 10.7200 10.7600 35,700
Weekend
Weekend

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.

32 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
31 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:47 ET Summarise
30 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:26 ET Summarise
29 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 09:56 ET Summarise
28 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
27 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
26 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
25 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:18 ET Summarise
24 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
23 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
22 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 12:35 ET Summarise
21 424B3 424B3 (opens SEC filing in a new tab) After-hours · 17:30 ET Summarise
20 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:32 ET Summarise
19 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 28 Jan, 18:46 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 21 Jan, 19:01 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:01 ET Summarise
15 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 14:57 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
13 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
12 PRE 14A PRE 14A (opens SEC filing in a new tab) Pre-market · 09:19 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
9 424B3 424B3 (opens SEC filing in a new tab) After-hours · 17:13 ET Summarise
8 S-3/A S-3/A (opens SEC filing in a new tab) Next filing day · accepted 29 Sep, 18:34 ET Summarise
7 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
6 S-3 S-3 (opens SEC filing in a new tab) After-hours · 17:18 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:02 ET Summarise
4 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:02 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:10 ET Summarise
1 10-Q 10-Q (opens SEC filing in a new tab) Next filing day · accepted 07 Aug, 18:05 ET Summarise