Sera Prognostics, Inc. - Class A SERA

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Sera Prognostics, Inc. - Class A Common Stock · Company · Nasdaq · Healthcare / Medical Devices

Paper trade (simulated — no real money)

Fill: USD 2.0300 · FX 1 USD = 1.277900 SGD · about SGD 2.5941 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 3.65 → 2.03 · -44.4%
3.7502.6701.590 1,2 3 4 5 6,7,8 9,10 11,12 13,14 15 16 17,18 19 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
2.0999 2.0999 2.0300 2.0300 25,072
2.0300 2.0400 2.0300 2.0400 31,200
2.0300 2.0450 2.0300 2.0300 24,200
2.0600 2.0600 2.0250 2.0300 31,300
2.0400 2.0650 2.0300 2.0300 5,300
Weekend
Weekend
2.0300 2.0610 2.0300 2.0600 3,500
2.0700 2.0900 2.0300 2.0300 13,300
2.0300 2.0700 2.0300 2.0700 5,800
2.0400 2.0470 2.0300 2.0400 4,700
2.0600 2.0990 2.0300 2.0700 13,800
Weekend
Weekend
2.0100 2.1000 2.0100 2.0400 6,300
2.2100 2.2100 2.0100 2.0200 13,400
2.0100 2.0700 2.0100 2.0700 800
2.1200 2.1200 2.0200 2.0500 4,400
2.0800 2.1500 2.0000 2.0000 22,900
Weekend
Weekend
2.0400 2.1500 2.0400 2.0900 21,900
2.0500 2.0600 2.0200 2.0400 6,700
2.0100 2.1200 2.0100 2.0900 11,500
2.0750 2.0750 2.0100 2.0100 4,300
2.0200 2.0430 2.0100 2.0200 6,900
Weekend
Weekend
2.0850 2.0850 2.0000 2.0400 12,800
2.1400 2.1400 2.0700 2.1100 5,400
2.1300 2.2000 2.0600 2.0600 13,900
2.1300 2.1750 2.1200 2.1300 10,400
2.1200 2.2000 2.1200 2.1200 17,000
Weekend
Weekend
2.0700 2.1600 2.0700 2.0850 92,100
2.0800 2.0800 2.0400 2.0700 7,200
2.0400 2.0400 2.0000 2.0200 10,900
1.9700 2.0200 1.9600 1.9900 25,500
2.0350 2.0600 1.9870 2.0000 31,800
Weekend
Weekend
2.0500 2.0550 1.9970 2.0300 26,400
2.0000 2.0600 1.9950 2.0500 72,100
2.0100 2.0600 2.0000 2.0000 8,300
2.0000 2.0400 1.9800 2.0100 64,100
No trading
Weekend
Weekend
2.0000 2.0500 1.9700 2.0200 10,500
2.0300 2.0600 1.9800 1.9800 15,300
2.0100 2.1800 1.9700 2.0100 15,400
2.0900 2.1600 2.0800 2.0800 14,700
2.0800 2.1770 2.0800 2.1200 9,500
Weekend
Weekend
2.0700 2.0900 2.0500 2.0700 23,100
2.1100 2.2000 1.9800 2.0300 51,400
2.1800 2.1800 2.0900 2.0900 7,300
2.1200 2.2100 2.1200 2.1800 17,800
2.1400 2.2110 2.0600 2.1800 19,400
Weekend
Weekend
2.0900 2.1600 2.0850 2.1400 14,500
1.9900 2.1000 1.9900 2.1000 30,900
19 · 8-K After-hours · 17:05 ET 8-K ↗
2.0400 2.0500 1.9800 1.9900 26,300
2.0000 2.0000 1.9150 1.9300 9,500
1.9400 2.0250 1.9400 1.9500 26,900
Weekend
Weekend
2.0100 2.0500 1.9600 1.9600 13,500
2.0300 2.0700 1.9100 2.0100 35,800
18 · 10-Q After-hours · 16:11 ET 10-Q ↗ 17 · 8-K After-hours · 16:08 ET 8-K ↗
2.0000 2.0500 1.9700 2.0200 27,700
1.8900 2.0600 1.8900 1.9900 39,500
2.0500 2.0500 1.9350 2.0100 30,900
Weekend
Weekend
2.0000 2.2000 1.8510 2.0700 61,400
1.9900 2.0000 1.9350 2.0000 16,800
1.9100 2.0100 1.8900 2.0000 58,000
2.0900 2.1500 1.9300 1.9300 87,200
1.9800 2.1890 1.9800 2.1000 15,300
Weekend
Weekend
2.0900 2.1300 2.0100 2.0400 24,700
2.0600 2.1780 1.9700 2.1000 79,000
2.0100 2.1450 2.0100 2.0500 11,200
2.0500 2.0500 1.9800 2.0300 26,100
2.0500 2.2100 1.9500 2.0500 76,800
Weekend
Weekend
2.1700 2.2500 1.9940 2.0500 18,900
2.0800 2.1800 1.9800 2.1700 20,700
2.2600 2.3000 2.0600 2.0800 23,600
2.0900 2.3000 2.0900 2.2700 91,800
1.9600 2.1400 1.9200 2.1000 27,400
Weekend
Weekend
2.1800 2.1800 1.9950 2.0500 19,500
2.1900 2.3000 2.1500 2.2000 16,200
1.9900 2.2900 1.9700 2.1600 77,600
1.9100 2.0400 1.9020 1.9800 52,200
1.9700 2.0300 1.9200 1.9200 31,100
Weekend
Weekend
2.0400 2.0550 1.9380 1.9700 15,900
2.0500 2.1150 1.9900 2.0600 48,000
2.0100 2.0600 1.9160 2.0500 13,700
2.0900 2.1200 1.8520 2.0100 7,800
1.9800 2.1100 1.7900 2.0900 60,000
Weekend
Weekend
No trading
2.0100 2.0900 1.9500 2.0000 26,000
1.8200 2.0600 1.8200 2.0300 24,300
16 · 8-K After-hours · 16:09 ET 8-K ↗
1.7800 1.9150 1.7700 1.8200 39,800
1.8100 1.8450 1.7650 1.8100 12,200
Weekend
Weekend
1.7800 1.8100 1.7400 1.8000 46,300
1.8000 1.8500 1.8000 1.8000 32,300
1.8500 1.8700 1.8000 1.8000 29,200
1.8400 1.8600 1.8400 1.8400 22,500
1.8300 1.8500 1.7250 1.8500 66,200
Weekend
Weekend
No trading
1.8800 1.9400 1.7500 1.7500 87,500
1.8500 1.9750 1.8500 1.8900 25,200
1.8400 2.0250 1.7590 1.8600 49,200
1.8800 2.0080 1.8000 1.8400 45,500
Weekend
Weekend
1.9600 2.0300 1.8600 1.8700 50,000
2.0300 2.0450 1.9000 1.9300 51,400
2.1400 2.1400 1.9800 2.0000 99,300
2.1300 2.2400 1.9600 2.1300 57,700
2.3100 2.3100 2.0800 2.1000 36,400
Weekend
Weekend
2.2700 2.3300 2.1800 2.2900 33,600
15 · 8-K After-hours · 17:13 ET 8-K ↗
2.1500 2.3300 2.1000 2.2450 100,900
2.0600 2.0750 2.0300 2.0500 20,300
2.1900 2.2500 2.0400 2.0400 36,700
14 · DEFA14A After-hours · 16:46 ET DEFA14A ↗ 13 · 8-K After-hours · 16:44 ET 8-K ↗
2.1200 2.2400 2.0700 2.1900 29,400
Weekend
Weekend
2.1600 2.2300 2.0450 2.1600 35,100
2.1800 2.1800 2.0100 2.1400 42,000
2.1700 2.2760 2.0000 2.1900 38,200
2.2700 2.3700 1.9400 2.1500 133,800
No trading
Weekend
Weekend
1.6900 2.2300 1.6670 2.0700 532,000
1.7800 1.8200 1.7300 1.8000 25,400
1.7000 1.8000 1.7000 1.7600 56,400
1.7100 1.7900 1.7100 1.7400 16,900
1.7400 1.8050 1.5900 1.7500 31,600
Weekend
Weekend
1.7500 1.9210 1.6600 1.7200 45,600
1.6100 2.0300 1.5600 1.7900 158,300
1.6500 1.7200 1.5800 1.5900 83,600
1.7400 1.8200 1.6500 1.6900 77,300
1.8820 1.9290 1.6850 1.7300 140,000
Weekend
Weekend
1.8810 1.9300 1.8700 1.8800 21,700
1.7100 1.9700 1.6200 1.9200 118,800
12 · 10-Q After-hours · 16:08 ET 10-Q ↗ 11 · 8-K After-hours · 16:06 ET 8-K ↗
1.8800 2.1100 1.8100 1.8100 45,600
1.9200 2.0750 1.8800 1.8800 25,700
2.0000 2.0200 1.9000 1.9000 14,400
Weekend
Weekend
1.9500 2.1500 1.9100 1.9100 22,500
2.0400 2.1450 1.9300 1.9400 28,100
1.9800 2.0810 1.9800 1.9900 7,400
2.0000 2.1200 1.9800 1.9800 4,400
2.0600 2.1600 2.0000 2.0000 11,200
Weekend
Weekend
10 · DEFA14A After-hours · 16:11 ET DEFA14A ↗ 9 · DEF 14A After-hours · 16:10 ET DEF 14A ↗
2.1350 2.1650 1.9440 2.0100 20,100
2.1300 2.2220 2.0650 2.1200 10,400
2.1400 2.3100 2.1220 2.1400 4,800
2.2900 2.2900 2.1200 2.1700 9,400
2.3000 2.3250 2.2200 2.2900 4,900
Weekend
Weekend
2.3300 2.3500 2.2500 2.3000 47,600
2.2200 2.3500 2.2100 2.3500 21,300
2.1200 2.1970 2.1200 2.1800 6,700
2.1500 2.2600 2.0400 2.1400 22,300
1.9700 2.2000 1.9700 2.1300 5,700
Weekend
Weekend
2.1200 2.1200 1.9100 1.9700 46,700
2.1600 2.3000 2.0900 2.0900 20,000
2.2400 2.3590 2.2000 2.2200 113,800
2.3300 2.3300 2.1600 2.1600 26,200
2.0300 2.3000 2.0250 2.3000 54,400
Weekend
Weekend
No trading
2.0350 2.0500 1.9800 2.0100 14,800
2.0300 2.2000 1.9900 2.0700 23,500
1.9500 2.0600 1.8850 2.0300 20,700
1.9000 1.9570 1.8300 1.9200 57,800
Weekend
Weekend
1.8550 2.0300 1.8250 1.8500 40,100
1.9600 2.0990 1.9500 1.9900 16,300
2.0700 2.0700 1.9700 1.9900 53,800
1.8250 2.1100 1.7100 2.0300 244,700
1.8700 1.9000 1.7610 1.8200 26,300
Weekend
Weekend
1.8200 1.9900 1.6500 1.8350 164,000
1.8000 1.8500 1.7000 1.7900 77,200
8 · 10-K After-hours · 16:08 ET 10-K ↗ 7 · 8-K After-hours · 16:06 ET 8-K ↗ 6 · 424B5 After-hours · 16:48 ET 424B5 ↗
2.0100 2.1390 1.8410 1.9100 222,000
2.0510 2.1300 2.0100 2.0100 24,000
2.0300 2.1700 2.0300 2.0600 56,300
Weekend
Weekend
2.0100 2.1400 2.0100 2.1300 40,900
1.9450 2.0800 1.8600 1.9900 114,100
1.8800 2.4600 1.8800 1.9300 751,300
1.9000 1.9900 1.7950 1.8300 71,500
2.1100 2.1100 1.8900 1.9300 42,000
Weekend
Weekend
1.9600 2.0200 1.9000 1.9500 29,500
2.0200 2.0800 2.0000 2.0000 15,000
2.1400 2.1430 2.0000 2.0200 35,000
2.1900 2.5390 2.0800 2.1100 33,500
2.2400 2.3550 2.2200 2.2300 29,900
Weekend
Weekend
2.2700 2.4900 2.2500 2.2900 16,100
2.3610 2.3610 2.2800 2.2900 15,400
2.3950 2.5000 2.2900 2.2900 61,700
2.4300 2.5770 2.2500 2.2500 59,700
2.5600 2.7580 2.3700 2.4500 20,300
Weekend
Weekend
2.6000 2.6050 2.4000 2.5100 26,600
2.5800 2.6300 2.4750 2.5700 38,600
2.6500 2.6500 2.5700 2.5900 6,800
2.6600 2.7370 2.5900 2.5900 25,500
No trading
Weekend
Weekend
2.5120 2.7800 2.5120 2.6500 11,200
2.5600 2.6600 2.5600 2.6000 12,700
2.6700 2.6700 2.5500 2.5900 18,700
2.6600 2.7800 2.5600 2.6500 17,700
2.4600 2.6800 2.4600 2.6800 14,300
Weekend
Weekend
2.3500 2.6750 2.3500 2.5200 28,700
2.6000 2.6400 2.3200 2.3200 46,000
2.8200 2.8200 2.5600 2.6300 41,400
2.7800 2.9300 2.7310 2.8200 17,600
2.7500 2.8900 2.7500 2.7800 17,200
Weekend
Weekend
2.7600 2.8650 2.7600 2.7600 34,800
2.8600 2.9050 2.7750 2.8000 25,000
3.0000 3.0000 2.8450 2.8800 33,900
3.0600 3.0900 2.9200 3.0000 29,300
3.2300 3.2300 3.0500 3.0900 27,100
Weekend
Weekend
3.4500 3.5500 3.1900 3.2400 44,900
3.5900 3.5900 3.4400 3.4400 21,400
3.5600 3.6900 3.4800 3.5500 91,500
3.6200 3.6530 3.3000 3.4800 201,100
No trading
Weekend
Weekend
3.5000 3.6800 3.5000 3.6600 49,600
3.5800 3.5800 3.4000 3.5200 33,900
3.5900 3.6300 3.4700 3.5400 17,600
3.6100 3.6900 3.4370 3.6000 43,400
3.6300 3.7500 3.4500 3.5950 42,800
Weekend
Weekend
3.7600 3.7600 3.6100 3.6900 129,200
5 · 8-K After-hours · 17:20 ET 8-K ↗
3.3100 3.8500 3.3100 3.5300 188,000
3.0900 3.4100 3.0380 3.3000 62,600
4 · 8-K Pre-market · 09:12 ET 8-K ↗
3.0000 3.1700 2.9600 2.9600 34,100
3.0300 3.1770 2.9300 3.0600 11,400
Weekend
Weekend
2.9700 3.0150 2.8600 3.0000 26,000
No trading
2.9400 3.0350 2.8000 2.9500 89,100
3.3000 3.3000 2.8800 2.9000 136,900
3.4600 3.5000 3.1800 3.2700 61,800
Weekend
Weekend
3.6000 3.6650 3.4000 3.5200 30,000
No trading
3.5700 3.6100 3.4900 3.6000 14,300
3.5700 3.6620 3.5400 3.5900 27,100
3.5900 3.6340 3.4830 3.6000 62,500
Weekend
Weekend
3.5600 3.6100 3.3800 3.5500 71,200
3.5100 3.7000 3.3850 3.5700 86,000
3.5500 3.6650 3.4450 3.5900 21,600
3.3400 3.7000 3.3400 3.5600 44,300
3.6500 3.7200 3.2000 3.3800 180,300
Weekend
Weekend
3.4440 3.6900 3.4400 3.5100 132,700
3.3600 3.4400 3.1920 3.4000 48,900
3.1350 3.4000 3.1300 3.4000 121,300
3.0200 3.1150 2.9100 3.0700 36,000
3.0500 3.1400 2.9900 3.0500 40,700
Weekend
Weekend
3.0750 3.1000 2.9900 3.0800 12,100
3.1500 3.3000 2.9600 2.9800 25,700
2.9000 3.1190 2.8690 3.0900 15,200
3.2000 3.2000 2.8100 2.9000 89,300
3.3300 3.3600 3.0600 3.2100 30,900
Weekend
Weekend
3.4000 3.5600 3.3300 3.3300 18,400
No trading
3.3700 3.5500 3.2000 3.3200 58,900
3.3800 3.4800 3.2300 3.4000 25,400
3.2300 3.4700 3.1000 3.3800 52,500
3 · 8-K Pre-market · 08:05 ET 8-K ↗
Weekend
Weekend
3.1400 3.4100 3.0700 3.2300 31,500
3.2200 3.3400 3.1300 3.1300 21,200
3.1400 3.2100 3.0750 3.2000 23,500
2.9800 3.2100 2.9600 3.1200 17,800
3.0600 3.1300 2.9850 3.0600 35,000
Weekend
Weekend
2.8300 3.0950 2.7510 2.9600 15,800
2 · 10-Q After-hours · 16:12 ET 10-Q ↗ 1 · 8-K After-hours · 16:09 ET 8-K ↗
3.1100 3.1100 2.8800 2.9500 14,500
2.6900 3.1760 2.6900 3.1200 32,400
2.4900 2.8100 2.4900 2.6900 49,300
2.5500 2.7000 2.3000 2.5500 54,100
Weekend
Weekend
2.6700 2.7220 2.4400 2.5200 71,400
3.0600 3.1300 2.6900 2.7000 57,000
3.0500 3.2100 3.0300 3.0900 21,300
3.1400 3.1500 3.0200 3.0200 31,300
3.3000 3.3720 3.1000 3.2000 21,800
Weekend
Weekend
3.3200 3.4350 3.2520 3.2800 12,600
3.4400 3.5900 3.3000 3.3500 49,400
3.7300 3.7500 3.4200 3.4900 21,800
3.7500 3.9400 3.6100 3.7500 56,400
3.6500 3.9500 3.5600 3.7400 117,600
Weekend
Weekend
3.3400 3.6500 3.3400 3.6500 62,900

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.

19 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:05 ET Summarise
18 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:13 ET Summarise
14 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:46 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:44 ET Summarise
12 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
10 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
9 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
8 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
6 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:48 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:20 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:12 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:05 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise