Annexon, Inc ANNX

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Annexon, Inc. - common stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 5.2200 · FX 1 USD = 1.288650 SGD · about SGD 6.7268 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 2.49 → 5.22 · 109.6%
6.9604.5052.050 1,2 3,4 5 6 7 8 9 10 11,12 13 14 15,16 17,18 19 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
5.4300 5.6100 5.1550 5.2200 2,732,900
5.1200 5.3450 5.0600 5.3000 2,194,300
5.2800 5.3650 5.1500 5.2300 1,619,900
5.3950 5.6400 4.9600 5.3900 2,956,300
5.7800 5.9200 5.5400 5.5700 2,216,300
Weekend
Weekend
5.7500 6.1550 5.6800 5.8000 3,341,500
6.5000 6.5800 5.7800 5.8900 7,711,300
5.8680 6.5100 5.4750 6.5000 8,846,400
5.6700 5.7850 5.4100 5.5500 5,555,900
5.6900 5.8400 5.5000 5.6300 3,040,200
Weekend
Weekend
5.9000 5.9000 5.4900 5.8000 2,736,900
5.8800 6.0100 5.8350 5.9400 4,836,200
6.3500 6.5100 5.8350 5.9600 7,549,000
5.9900 6.4700 5.8300 6.4300 5,759,400
5.4300 6.0900 5.3900 5.9600 6,778,900
Weekend
Weekend
No trading
5.5800 5.6400 5.2750 5.4600 2,561,800
5.7100 6.0400 5.4350 5.5500 4,919,700
5.5700 5.7300 5.4700 5.7100 3,633,700
5.4800 5.6500 5.4200 5.5700 8,568,200
Weekend
Weekend
5.1700 5.5100 5.1600 5.4800 14,807,100
5.3500 5.5550 5.0500 5.1500 3,830,600
5.3000 5.6000 5.2500 5.3000 3,303,500
4.9900 5.3900 4.9450 5.2800 5,852,100
4.9900 5.1650 4.9350 5.0400 3,039,300
Weekend
Weekend
No trading
5.1000 5.2100 4.8150 4.9000 7,342,600
4.5400 4.9600 4.5400 4.9400 2,376,500
4.6400 4.7200 4.4600 4.5200 2,409,000
4.8000 4.9400 4.4700 4.6400 2,898,000
Weekend
Weekend
19 · 8-K After-hours · 16:16 ET 8-K ↗
4.7000 4.8300 4.5900 4.7100 3,196,000
4.7400 4.9100 4.6600 4.7000 1,673,900
5.1500 5.3000 4.6750 4.7200 2,627,000
5.1900 5.3400 5.0200 5.2000 3,194,900
5.3900 5.4600 5.1100 5.1200 3,315,500
Weekend
Weekend
5.4100 5.4700 5.2450 5.2900 1,762,600
5.3900 5.6900 5.3200 5.4500 3,229,800
5.2500 5.4400 5.2040 5.3900 2,921,900
5.4700 5.4700 5.2150 5.2600 2,105,100
5.9200 5.9200 5.3950 5.5800 4,731,700
Weekend
Weekend
5.3700 5.4800 5.2350 5.4200 2,176,800
5.3650 5.4950 5.2700 5.3700 2,720,200
5.5500 5.6400 5.3750 5.3900 1,930,800
5.4100 5.5350 5.2900 5.5200 4,503,900
No trading
Weekend
Weekend
5.4500 5.5650 5.2500 5.3100 2,180,200
4.9400 5.4600 4.8800 5.4400 3,012,100
4.9700 5.1000 4.9350 5.0400 1,808,600
4.9500 5.0000 4.8350 4.9100 2,576,200
5.2000 5.3500 4.9100 4.9600 3,279,900
Weekend
Weekend
5.2500 5.3700 5.0600 5.2100 1,850,600
5.4500 5.5250 5.3300 5.3700 1,587,700
5.4700 5.5850 5.3400 5.4500 2,253,600
5.6200 5.6200 5.4400 5.4400 1,189,700
5.7800 5.9250 5.5850 5.6800 2,275,100
Weekend
Weekend
5.6150 6.0250 5.5590 5.6900 2,011,700
18 · 10-Q After-hours · 16:12 ET 10-Q ↗ 17 · 8-K After-hours · 16:05 ET 8-K ↗
5.6800 5.7050 5.2800 5.5200 2,357,600
5.8000 5.8200 5.6500 5.7000 1,351,400
5.7800 5.8800 5.6350 5.7200 1,917,600
5.6800 5.9200 5.6200 5.6900 2,335,700
Weekend
Weekend
5.8500 5.9600 5.7250 5.7500 1,234,000
5.9300 6.0050 5.8300 5.8700 2,174,800
5.9800 6.0650 5.7810 5.8900 2,572,000
6.0300 6.2600 5.9500 6.0000 2,164,000
16 · DEFA14A After-hours · 16:07 ET DEFA14A ↗ 15 · DEF 14A After-hours · 16:06 ET DEF 14A ↗
5.8200 6.1700 5.8200 6.1000 3,090,500
Weekend
Weekend
6.0600 6.1100 5.8110 5.8800 1,393,800
6.1900 6.4200 6.0500 6.0600 2,087,300
6.3100 6.3200 6.1300 6.2600 1,848,100
6.3900 6.3900 6.1100 6.2000 1,695,200
6.4800 6.5300 6.2400 6.4300 1,429,200
Weekend
Weekend
6.4100 6.6150 6.3500 6.5400 3,001,000
14 · PRE 14A After-hours · 16:06 ET PRE 14A ↗
6.2700 6.3850 6.1000 6.3300 2,413,600
5.9300 6.4350 5.9100 6.3500 4,342,100
5.8600 5.9500 5.7500 5.8000 2,146,600
5.8700 6.0750 5.7850 5.8100 1,509,800
Weekend
Weekend
6.2000 6.2100 5.7200 5.8500 2,146,000
5.9900 6.2000 5.9900 6.1400 1,280,700
6.2400 6.3700 5.9850 6.0500 2,468,300
5.6900 6.0100 5.4600 5.9900 2,247,300
5.5000 5.9350 5.4600 5.8000 3,337,800
Weekend
Weekend
No trading
5.2550 5.6500 5.1300 5.5000 3,331,300
5.6800 5.9900 5.3500 5.3600 2,451,600
5.6400 6.1000 5.2350 5.5400 4,932,600
13 · S-3ASR Next filing day · accepted 30 Mar, 19:42 ET S-3ASR ↗ 12 · 10-K After-hours · 17:30 ET 10-K ↗ 11 · 8-K After-hours · 17:29 ET 8-K ↗
5.0100 5.1400 4.8550 4.9600 2,294,200
Weekend
Weekend
5.1900 5.3200 4.9950 5.0000 1,751,500
5.2300 5.3250 5.0100 5.2500 2,851,100
5.1200 5.5200 5.0900 5.3650 2,173,600
5.2500 5.3000 4.9500 5.0000 2,714,800
5.1100 5.4800 5.1100 5.3700 2,008,000
Weekend
Weekend
5.4500 5.6200 5.0600 5.1100 10,013,200
5.3900 5.6200 5.3000 5.4900 2,741,100
5.6300 5.6800 5.3800 5.4200 2,807,800
5.7100 5.7950 5.5650 5.6100 1,887,500
5.7600 5.9400 5.6250 5.7200 3,419,400
Weekend
Weekend
5.6200 5.8800 5.5800 5.6600 1,598,400
5.7700 5.9500 5.4250 5.4400 2,463,200
6.0800 6.2900 5.8800 6.0300 1,338,900
5.6700 6.2000 5.6700 6.0800 2,222,300
5.0200 5.6300 5.0200 5.5900 2,107,200
Weekend
Weekend
5.2600 5.3800 5.0100 5.1600 1,792,700
5.4800 5.5950 5.3650 5.4300 3,159,100
5.4600 5.6400 5.3700 5.5900 3,264,000
5.2900 5.5350 5.1200 5.4300 6,163,900
5.5700 5.7300 5.3200 5.5200 3,068,800
Weekend
Weekend
5.3100 5.6350 5.2500 5.6000 4,704,200
5.1150 5.4300 4.9600 5.3800 4,159,200
5.0250 5.2050 4.9700 5.0900 2,837,200
4.9300 5.0600 4.8910 4.9600 2,674,700
4.8900 5.0750 4.7800 4.8900 1,597,700
Weekend
Weekend
5.0500 5.1050 4.8550 4.9000 1,749,100
5.1500 5.1900 5.0000 5.1000 1,406,300
4.9800 5.1800 4.9250 5.0600 1,858,200
10 · 8-K After-hours · 16:16 ET 8-K ↗
4.8900 5.1100 4.7900 5.0400 2,090,000
No trading
Weekend
Weekend
5.2200 5.3700 4.8700 4.8900 1,904,000
5.2500 5.4350 5.1300 5.1900 2,216,000
5.6600 5.7500 5.0900 5.2400 2,489,000
5.7000 5.7900 5.5700 5.6100 3,347,400
5.7100 5.7100 5.4600 5.6300 1,716,500
Weekend
Weekend
5.7900 5.8550 5.5800 5.7300 2,060,600
5.9300 6.2100 5.4300 5.6300 2,384,600
6.4200 6.5200 5.9000 6.0400 1,884,600
6.3600 6.5900 6.3000 6.4800 1,435,500
6.1300 6.5500 6.1000 6.3800 1,571,800
Weekend
Weekend
6.6500 6.8400 6.1550 6.2400 1,840,900
6.4100 6.5500 6.3000 6.5200 1,287,900
6.6300 6.6300 6.2600 6.2900 3,741,700
6.6600 6.8200 6.4850 6.5700 2,449,800
6.7000 6.7450 6.4200 6.6600 1,714,400
Weekend
Weekend
6.9800 7.1800 6.7550 6.7800 2,337,100
6.8700 7.0600 6.8550 6.9600 2,780,300
6.1700 6.8750 6.1700 6.8500 2,997,400
6.0600 6.1900 5.8500 6.1600 1,949,800
No trading
Weekend
Weekend
6.2000 6.2800 6.0500 6.0700 1,616,900
6.6900 6.7550 6.1500 6.1600 2,970,200
9 · 8-K After-hours · 16:05 ET 8-K ↗
6.2000 6.8300 6.0000 6.6800 4,643,900
5.5300 6.3000 5.4960 6.1900 2,793,900
5.2500 5.5700 5.1200 5.5600 1,816,400
8 · 8-K Pre-market · 07:05 ET 8-K ↗
Weekend
Weekend
5.3800 5.5400 5.2200 5.2500 1,870,700
5.5200 5.5400 5.2550 5.2900 2,428,700
5.1000 5.7300 5.1000 5.5300 3,142,200
5.1700 5.1700 4.9500 5.1000 3,203,700
4.7400 5.2300 4.5450 5.2200 5,408,500
Weekend
Weekend
5.1000 5.1600 4.6500 4.6900 2,102,600
No trading
5.0400 5.1150 4.9500 5.0200 2,107,900
5.0200 5.1800 4.9500 5.0400 1,934,700
5.0400 5.1800 4.9900 5.0000 1,355,700
Weekend
Weekend
5.1600 5.2700 4.9400 5.1100 1,670,300
No trading
5.1500 5.2870 5.1100 5.1800 955,900
5.3200 5.3200 5.0400 5.1100 2,169,800
5.1800 5.4800 5.1100 5.1900 2,402,000
Weekend
Weekend
4.8600 5.4150 4.8500 5.1700 10,460,500
4.9900 5.1100 4.8050 4.8200 2,705,200
4.8200 4.9750 4.8050 4.9000 1,810,400
4.9100 5.0100 4.7500 4.8000 2,618,700
4.9900 5.0700 4.7950 4.9100 3,344,200
Weekend
Weekend
5.0300 5.3400 4.9500 4.9700 5,562,700
4.9100 5.1250 4.8850 5.0400 3,393,100
4.8500 5.0000 4.8400 4.9000 1,666,800
4.8700 4.9800 4.7850 4.8600 2,275,000
4.7200 5.0000 4.7100 4.8600 2,433,500
Weekend
Weekend
4.4800 4.7400 4.4800 4.6100 1,944,300
4.4450 4.5450 4.2500 4.4900 2,488,900
4.1000 4.3100 4.0800 4.2800 1,777,200
4.2600 4.4400 4.0100 4.0600 4,167,300
4.4200 4.5000 4.0700 4.1300 2,248,200
Weekend
Weekend
4.3600 4.6400 4.3500 4.5000 1,764,000
No trading
4.4100 4.4450 4.2620 4.3200 3,045,700
4.5300 4.6000 4.3250 4.4400 2,852,700
4.4500 4.7000 4.3680 4.5100 3,844,200
Weekend
Weekend
4.2900 4.4150 4.1650 4.2700 3,979,100
4.4000 5.0700 4.2450 4.2700 8,299,900
3.5800 4.2000 3.5000 4.0600 10,650,500
3.0200 3.2880 2.9900 3.2000 2,952,000
2.6900 3.1150 2.6700 3.0200 3,647,800
Weekend
Weekend
7 · 8-K After-hours · 16:41 ET 8-K ↗
2.6800 2.8950 2.6500 2.7100 3,507,800
6 · 424B5 After-hours · 16:52 ET 424B5 ↗
2.5700 2.8300 2.5400 2.6800 3,853,200
5 · 424B5 After-hours · 16:20 ET 424B5 ↗
2.9600 2.9700 2.7400 2.8400 1,922,300
2.9500 3.0300 2.8600 2.9700 935,500
4 · 10-Q After-hours · 16:10 ET 10-Q ↗ 3 · 8-K After-hours · 16:08 ET 8-K ↗
2.9200 3.0060 2.9000 2.9800 837,400
Weekend
Weekend
2.9800 2.9800 2.6550 2.8800 1,639,100
3.0800 3.1170 2.9200 3.0200 1,052,400
3.0800 3.1500 2.9800 3.0100 1,421,200
3.0500 3.1600 3.0160 3.0800 1,884,200
3.2000 3.3700 3.0900 3.1700 2,370,800
Weekend
Weekend
2.9300 3.2350 2.8900 3.1600 3,738,100
3.1600 3.2000 2.9100 2.9300 1,726,100
3.4500 3.5000 3.1650 3.1900 2,946,600
3.5200 3.6000 3.4300 3.4500 1,716,700
3.2600 3.5500 3.2600 3.5400 1,970,100
Weekend
Weekend
3.0600 3.3400 3.0600 3.2100 3,194,600
2.9900 3.0600 2.9050 3.0500 1,222,700
3.1300 3.1500 2.8850 3.0000 1,690,800
3.1700 3.2200 3.0500 3.1300 1,663,700
3.2300 3.2850 3.1250 3.1600 2,245,800
Weekend
Weekend
3.1400 3.3550 3.0900 3.1500 1,554,700
3.0800 3.2600 3.0500 3.1700 1,618,200
3.0000 3.2100 2.9500 3.0400 1,731,900
2.9300 3.0500 2.8610 3.0000 1,573,400
3.1200 3.1800 2.9250 3.0050 1,147,800
Weekend
Weekend
3.2600 3.2600 2.9300 3.1000 2,175,800
3.1500 3.3000 3.0900 3.2600 1,593,100
3.0700 3.2200 3.0450 3.1500 1,611,200
3.1900 3.2300 3.0550 3.0700 917,700
3.2200 3.2900 3.1500 3.1800 1,119,200
Weekend
Weekend
3.1900 3.3800 3.1100 3.1900 1,518,200
3.0400 3.1600 3.0050 3.1100 3,010,400
3.0200 3.1800 2.9800 3.0300 1,406,800
3.0800 3.1400 2.9100 3.0500 2,945,000
3.3800 3.4250 3.0200 3.1200 5,535,800
Weekend
Weekend
2.8100 3.4100 2.7700 3.3700 5,462,400
2.7800 2.8800 2.7500 2.7900 1,346,000
2.9200 2.9800 2.7950 2.8200 1,911,000
3.0000 3.0100 2.8050 2.9100 1,980,400
2.8300 3.0450 2.7500 2.9800 1,802,300
Weekend
Weekend
2.6700 2.8900 2.6600 2.8600 3,533,100
2.5600 2.6800 2.5200 2.6400 1,667,800
2.6600 2.7100 2.5000 2.5200 1,144,100
2.4900 2.6800 2.4900 2.6500 2,022,600
2.4300 2.4900 2.3200 2.4900 1,132,300
Weekend
Weekend
2.5200 2.5700 2.4100 2.4200 3,901,400
2.2700 2.6980 2.2700 2.5500 3,154,600
2.1200 2.3950 2.1000 2.2900 3,692,300
2.1900 2.2050 2.1000 2.1200 1,451,700
2.2100 2.2800 2.1700 2.2100 1,429,000
Weekend
Weekend
2.1900 2.2480 2.1300 2.1700 1,231,100
2.0500 2.1700 2.0400 2.1500 1,835,100
2.0700 2.1200 2.0300 2.0500 856,100
2.0600 2.1350 2.0500 2.0700 1,682,500
No trading
Weekend
Weekend
2.1200 2.1450 2.0500 2.0600 1,019,800
2.1400 2.1790 2.0900 2.1200 843,500
2.1400 2.1850 2.0600 2.1100 1,696,700
2.2000 2.2000 2.0900 2.1500 1,046,800
2.3100 2.3200 2.1400 2.1500 964,200
Weekend
Weekend
2.2000 2.3550 2.1900 2.3100 1,956,900
2.1100 2.1850 2.0700 2.1700 1,061,900
2.1900 2.2300 2.1000 2.1400 739,100
2.3500 2.3500 2.1000 2.1900 1,993,800
2.4700 2.5670 2.3400 2.3500 1,894,000
Weekend
Weekend
2.4500 2.5750 2.3500 2.4400 2,662,500
2 · 10-Q After-hours · 16:10 ET 10-Q ↗ 1 · 8-K After-hours · 16:09 ET 8-K ↗
2.5500 2.6000 2.3400 2.3800 1,323,200
2.4700 2.7100 2.4500 2.6000 1,910,800
2.3800 2.4500 2.3500 2.4400 417,700
2.3600 2.4000 2.3100 2.3500 466,200
Weekend
Weekend
2.3900 2.4340 2.3350 2.3600 1,103,300
2.3500 2.3900 2.3050 2.3700 884,600
2.4400 2.4500 2.3500 2.3500 569,400
2.5300 2.5600 2.4350 2.4800 631,600
2.5200 2.6200 2.4350 2.5300 1,032,900
Weekend
Weekend
2.3500 2.4700 2.2900 2.4500 872,000
2.5700 2.5980 2.4000 2.4000 685,800
2.3800 2.7400 2.3700 2.5900 1,572,000
2.5300 2.5300 2.3700 2.3800 631,600
2.5400 2.6050 2.4900 2.4900 668,600
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.

19 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
18 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
16 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
15 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
14 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
13 S-3ASR S-3ASR (opens SEC filing in a new tab) Next filing day · accepted 30 Mar, 19:42 ET Summarise
12 10-K 10-K (opens SEC filing in a new tab) After-hours · 17:30 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:29 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
9 8-K 8-K (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) Pre-market · 07:05 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:41 ET Summarise
6 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:52 ET Summarise
5 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
4 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise