ESS Tech, Inc GWH
Open calendar →ESS Tech, Inc. Common Stock · Company · NYSE
USD closing-price chart (daily close from yfinance · Last year)
USD 2.08 → 0.89 · -57.3%
Numbered dotted lines mark the filtered filings under Announcement Events below.
Price & SEC Filing History 22 Jul 2025 — 23 Jul 2026 (Last year)
Daily NYSE 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.
Date
Open
High
Low
Close
Volume
No data yet
0.8851
0.9982
0.8220
0.8878
3,047,674
0.8400
0.8680
0.8330
0.8430
226,300
0.9000
0.9000
0.8360
0.8360
298,700
Weekend
Weekend
0.9090
0.9100
0.8630
0.8850
274,400
53 · 8-K
Next filing day · accepted 16 Jul, 18:14 ET
8-K ↗
52 · 424B5
Next filing day · accepted 16 Jul, 18:13 ET
424B5 ↗
1.0100
1.0100
0.8700
0.8900
708,800
0.9480
1.0610
0.9100
1.0200
2,111,000
0.8060
0.8990
0.8050
0.8700
412,700
0.8700
0.8700
0.8030
0.8060
264,100
Weekend
Weekend
0.8320
0.8590
0.8000
0.8500
309,700
0.8470
0.8630
0.8100
0.8240
272,700
0.7900
0.8170
0.7700
0.8100
400,200
0.8800
0.8800
0.7100
0.7600
997,600
0.8700
0.9200
0.8520
0.8800
433,300
Weekend
Weekend
No trading
0.9500
0.9500
0.8520
0.8630
498,900
51 · 8-K
After-hours · 16:15 ET
8-K ↗
0.9900
1.0300
0.8930
0.9110
816,500
1.0200
1.0200
0.9070
0.9500
1,010,900
0.8800
1.1000
0.8700
0.9860
3,910,900
Weekend
Weekend
0.7570
0.8690
0.7300
0.8500
813,800
0.8500
0.8690
0.7600
0.7640
369,800
0.8010
0.8460
0.7380
0.8460
625,400
0.8070
0.8960
0.7400
0.7780
2,645,400
50 · 8-K
Pre-market · 08:36 ET
8-K ↗
0.8080
0.8080
0.7360
0.7400
408,000
Weekend
Weekend
No trading
49 · 8-K
After-hours · 17:27 ET
8-K ↗
0.7900
0.7990
0.7700
0.7920
355,300
0.7900
0.8500
0.7820
0.7900
207,400
0.8020
0.8400
0.7800
0.8010
377,400
0.8500
0.8670
0.7210
0.8000
725,500
48 · 8-K
Pre-market · 08:59 ET
8-K ↗
Weekend
Weekend
0.8600
0.8860
0.8120
0.8270
290,300
0.8650
0.8730
0.8110
0.8730
379,800
0.8200
0.8800
0.7800
0.8410
599,500
0.9100
0.9110
0.8100
0.8410
462,900
0.9070
0.9070
0.8300
0.8570
476,400
Weekend
Weekend
1.0100
1.0100
0.8980
0.9070
1,036,800
0.9900
1.0800
0.9200
1.0100
683,700
1.0000
1.0200
0.8900
0.9200
645,500
1.0100
1.0200
0.9800
0.9800
379,800
1.0400
1.0700
1.0150
1.0200
553,000
Weekend
Weekend
47 · 8-K
After-hours · 17:18 ET
8-K ↗
1.0300
1.0400
0.9510
1.0100
412,800
0.9400
1.0300
0.9400
1.0000
397,700
1.0300
1.0500
0.9170
0.9840
723,800
1.0500
1.1100
1.0100
1.0100
1,902,500
No trading
Weekend
Weekend
0.9300
0.9700
0.9100
0.9580
306,000
0.9710
0.9790
0.9010
0.9220
357,500
0.8670
0.9100
0.8540
0.9010
243,800
0.8890
0.8900
0.8400
0.8600
293,600
0.9400
0.9400
0.8300
0.8600
539,200
Weekend
Weekend
0.9280
0.9430
0.8910
0.9100
286,500
0.9700
0.9700
0.8660
0.9410
708,000
0.8000
1.0900
0.7360
0.9790
3,262,700
0.8640
0.8640
0.7690
0.7730
697,400
0.8200
0.9000
0.7910
0.8140
1,572,400
Weekend
Weekend
1.0500
1.0500
0.5650
0.7800
7,836,800
46 · 10-Q
After-hours · 16:31 ET
10-Q ↗
45 · 8-K
After-hours · 16:26 ET
8-K ↗
1.1300
1.1700
1.0800
1.1200
926,500
1.1500
1.1700
1.1000
1.1400
732,400
1.1100
1.1900
1.1100
1.1500
609,400
1.1200
1.1280
1.0800
1.1100
411,800
Weekend
Weekend
1.1300
1.1400
1.0900
1.1000
439,600
1.0800
1.1300
1.0100
1.1000
823,300
1.1600
1.1600
1.0700
1.0700
715,100
1.1600
1.1800
1.1300
1.1700
596,600
1.1400
1.1900
1.1300
1.1900
265,600
Weekend
Weekend
1.1300
1.1500
1.1000
1.1400
365,500
1.1600
1.1600
1.1000
1.1400
333,100
1.1600
1.1600
1.1200
1.1400
282,500
1.2000
1.2100
1.1000
1.1200
734,900
1.1600
1.1900
1.1200
1.1800
529,600
Weekend
Weekend
1.1600
1.1800
1.1200
1.1600
497,700
1.1800
1.1960
1.1250
1.1400
475,200
44 · DEFA14A
After-hours · 16:07 ET
DEFA14A ↗
43 · DEF 14A
After-hours · 16:06 ET
DEF 14A ↗
42 · 8-K
After-hours · 16:05 ET
8-K ↗
1.2200
1.2300
1.1500
1.1700
995,900
1.2300
1.2400
1.1700
1.2000
408,100
1.1300
1.2100
1.1000
1.2100
252,200
Weekend
Weekend
1.1500
1.1600
1.1200
1.1500
124,800
1.1400
1.1500
1.0900
1.1500
249,600
1.1900
1.1900
1.0800
1.1000
289,800
1.1600
1.1800
1.0900
1.0900
488,500
1.1900
1.2100
1.1550
1.2000
220,000
Weekend
Weekend
No trading
1.1200
1.2100
1.1200
1.2100
180,900
1.1800
1.2000
1.1450
1.1800
275,000
1.1200
1.2000
1.1100
1.1700
281,400
1.1500
1.1700
1.0900
1.1100
248,600
Weekend
Weekend
1.2000
1.2000
1.0950
1.1300
353,500
1.2100
1.2400
1.1700
1.2000
223,200
1.2000
1.2500
1.2000
1.2500
217,200
1.1800
1.2070
1.1500
1.1700
218,300
1.2300
1.2690
1.1800
1.1800
296,800
Weekend
Weekend
1.2500
1.2600
1.1650
1.2300
645,300
1.3100
1.3100
1.2300
1.2600
308,300
1.3600
1.3600
1.2800
1.2800
225,600
1.3200
1.3600
1.3120
1.3600
264,700
1.2800
1.3200
1.2600
1.3000
197,400
Weekend
Weekend
1.2900
1.2980
1.2500
1.2700
164,200
1.2900
1.2990
1.2400
1.2700
232,800
1.3200
1.3400
1.2700
1.3100
304,700
1.3300
1.3550
1.2700
1.3000
451,600
1.2900
1.3100
1.2300
1.3000
412,100
Weekend
Weekend
1.3100
1.3400
1.2200
1.3000
549,300
41 · 10-K
After-hours · 16:10 ET
10-K ↗
40 · 8-K
After-hours · 16:06 ET
8-K ↗
1.4400
1.4490
1.3200
1.3600
967,700
1.4700
1.5000
1.4300
1.4400
621,700
1.5100
1.5900
1.4100
1.5100
6,555,700
1.5000
1.6100
1.4900
1.6100
323,000
Weekend
Weekend
1.6500
1.6550
1.5250
1.5900
445,000
1.6100
1.7100
1.5400
1.6600
717,400
1.5000
1.6200
1.4710
1.5900
480,800
1.4400
1.5200
1.4000
1.4700
269,100
1.5000
1.5400
1.3900
1.4600
392,800
Weekend
Weekend
1.5300
1.6000
1.5000
1.5400
203,600
1.4800
1.6150
1.4500
1.5600
495,200
1.4400
1.5200
1.4000
1.5000
357,300
1.4300
1.4700
1.3800
1.4200
180,200
No trading
Weekend
Weekend
1.4500
1.4700
1.3800
1.4400
171,700
1.5100
1.5400
1.4200
1.4200
216,900
1.5200
1.5500
1.4500
1.5300
248,800
1.5800
1.6200
1.5100
1.5100
230,400
1.5900
1.6500
1.5100
1.5800
500,000
Weekend
Weekend
1.4600
1.6150
1.4200
1.5900
397,000
1.5600
1.5800
1.4000
1.4000
483,000
1.7500
1.7900
1.5600
1.6100
644,800
1.6600
1.7600
1.6200
1.7500
449,200
1.7500
1.7500
1.5500
1.6400
400,000
Weekend
Weekend
1.6900
1.8300
1.6500
1.7500
810,100
39 · 8-K
Next filing day · accepted 29 Jan, 21:49 ET
8-K ↗
38 · 424B5
Next filing day · accepted 29 Jan, 21:47 ET
424B5 ↗
1.5700
1.7350
1.5000
1.7100
3,152,800
37 · 8-K
Pre-market · 08:15 ET
8-K ↗
1.7200
1.7200
1.6500
1.6800
217,000
1.7500
1.7550
1.6200
1.6900
460,800
1.7800
1.8400
1.6700
1.7500
590,700
Weekend
Weekend
1.9400
1.9400
1.7800
1.7800
428,000
1.8550
1.9570
1.8250
1.9100
493,500
1.7800
1.8500
1.7100
1.8100
366,500
1.8000
1.8200
1.7150
1.7800
385,400
No trading
Weekend
Weekend
1.8300
1.9350
1.7600
1.8400
613,100
1.8000
1.8200
1.7700
1.7800
320,100
1.8100
1.8190
1.7250
1.7800
301,600
1.9100
1.9300
1.7600
1.8100
645,700
1.9300
1.9300
1.8000
1.8400
667,700
Weekend
Weekend
1.9500
2.0000
1.8300
1.9100
878,300
1.8600
1.9700
1.8500
1.8800
424,800
1.9300
1.9400
1.8000
1.8100
296,400
1.9700
2.0200
1.8710
1.9300
302,100
36 · 8-K
Pre-market · 08:43 ET
8-K ↗
2.0800
2.1500
1.9000
1.9500
533,800
Weekend
Weekend
2.0500
2.1100
1.9750
2.0100
620,900
No trading
1.8100
1.9250
1.8080
1.8800
345,200
1.7700
1.8800
1.7450
1.8300
351,700
1.8000
1.8750
1.7300
1.7800
347,200
Weekend
Weekend
1.9400
1.9600
1.8100
1.8600
447,300
No trading
2.0300
2.0300
1.9200
1.9400
120,100
1.9700
2.0300
1.9150
2.0300
301,400
2.0500
2.3000
2.0000
2.0000
853,900
Weekend
Weekend
1.8700
2.0000
1.8700
1.9900
375,200
2.1600
2.1700
1.8500
1.8500
437,800
2.0400
2.1800
2.0050
2.0600
496,600
1.9100
2.0400
1.9000
1.9600
349,000
2.1200
2.1420
1.9300
1.9300
435,300
Weekend
Weekend
2.2200
2.2500
2.0900
2.0900
291,800
35 · 424B3
After-hours · 17:22 ET
424B3 ↗
34 · 424B5
After-hours · 17:21 ET
424B5 ↗
2.2700
2.3170
2.1740
2.2900
334,700
2.2800
2.3550
2.2000
2.3100
410,800
2.2400
2.3700
2.2100
2.2800
419,600
2.2000
2.2850
2.1400
2.2300
275,700
Weekend
Weekend
33 · 8-K
After-hours · 16:18 ET
8-K ↗
2.4100
2.4100
2.1300
2.1600
521,900
2.2200
2.4450
2.2200
2.3800
799,200
2.3700
2.3800
2.2300
2.2700
563,600
2.4500
2.4600
2.3300
2.3300
320,000
2.7400
2.7700
2.4100
2.4100
430,000
Weekend
Weekend
2.7000
2.8300
2.6850
2.7500
525,100
No trading
2.6100
2.6530
2.5050
2.6500
395,100
2.5200
2.6600
2.3800
2.5800
669,500
2.4900
2.5700
2.4000
2.4800
485,800
Weekend
Weekend
2.3500
2.4600
2.2400
2.4400
653,000
2.6200
2.7690
2.3790
2.4000
611,700
2.5800
2.6100
2.4600
2.5200
453,600
2.4800
2.6700
2.4000
2.5500
450,600
2.6700
2.8400
2.4600
2.5700
777,300
Weekend
Weekend
3.1700
3.4100
2.6350
2.7600
1,901,100
32 · 8-K
After-hours · 16:31 ET
8-K ↗
31 · 10-Q
After-hours · 16:08 ET
10-Q ↗
30 · S-3
After-hours · 16:20 ET
S-3 ↗
29 · 8-K
After-hours · 16:14 ET
8-K ↗
28 · 424B5
After-hours · 16:12 ET
424B5 ↗
4.4100
4.6700
4.1900
4.2500
1,131,200
4.3000
4.4960
4.1700
4.4000
480,800
4.2800
4.4100
4.0550
4.2500
362,400
4.6400
4.7500
4.1900
4.2900
539,400
Weekend
Weekend
4.1100
4.5100
3.8000
4.4400
669,200
4.4900
4.4900
4.0800
4.1800
480,600
3.6400
4.6400
3.6400
4.5600
1,388,200
3.5900
3.8200
3.5000
3.6200
483,700
4.0200
4.2570
3.7800
3.7800
584,700
Weekend
Weekend
4.2100
4.2920
3.8400
4.1300
648,000
4.4400
4.4400
4.0000
4.0000
595,500
4.6100
4.6580
4.3320
4.3500
920,900
5.1100
5.2900
4.5280
4.7000
1,475,000
4.7100
5.6700
4.6600
4.9000
3,330,500
Weekend
Weekend
4.7100
4.9000
4.4800
4.5100
1,371,100
4.6300
5.1900
4.6300
4.8400
1,261,500
27 · 424B2
After-hours · 16:14 ET
424B2 ↗
4.1400
4.8400
4.0400
4.7400
2,608,300
4.8000
4.8000
4.1400
4.3300
2,570,200
5.0500
5.4700
4.7500
4.7800
3,199,300
Weekend
Weekend
4.8700
6.6800
4.6500
5.2800
30,573,500
26 · 424B2
Next filing day · accepted 16 Oct, 19:28 ET
424B2 ↗
5.3900
5.6700
4.5250
4.5500
6,035,000
25 · 424B2
After-hours · 17:20 ET
424B2 ↗
6.3200
6.9000
6.0000
6.1200
7,798,800
10.6500
10.7700
6.5800
7.5800
30,853,000
24 · 8-K
Pre-market · 09:00 ET
8-K ↗
23 · 424B2
Pre-market · 08:16 ET
424B2 ↗
22 · 8-K
Pre-market · 08:12 ET
8-K ↗
5.8000
13.8700
5.6300
9.0500
162,649,600
Weekend
Weekend
21 · 424B2
After-hours · 16:47 ET
424B2 ↗
3.6300
5.3300
3.0400
4.1600
280,689,200
20 · 424B2
After-hours · 16:41 ET
424B2 ↗
1.8000
1.8400
1.6500
1.7200
8,558,900
2.0000
2.0000
1.7500
1.7900
568,100
1.9600
2.1000
1.7600
1.8900
1,003,500
19 · DEFA14A
Next filing day · accepted 06 Oct, 18:56 ET
DEFA14A ↗
18 · 424B2
Next filing day · accepted 06 Oct, 18:27 ET
424B2 ↗
1.8700
2.1500
1.7700
2.0100
1,566,300
Weekend
Weekend
1.5400
1.7600
1.5400
1.7200
1,000,300
1.5600
1.5700
1.4700
1.5300
292,300
1.5200
1.6000
1.4500
1.5500
224,800
17 · 424B2
After-hours · 16:51 ET
424B2 ↗
1.6800
1.6900
1.4750
1.5200
260,900
1.6300
1.7100
1.5500
1.6600
268,400
Weekend
Weekend
1.7100
1.7100
1.5400
1.6000
263,400
1.6700
1.8560
1.6400
1.7300
507,600
16 · 424B2
Next filing day · accepted 24 Sep, 18:28 ET
424B2 ↗
1.6600
1.7360
1.6200
1.6200
223,100
1.7600
1.7700
1.6500
1.6500
365,400
15 · DEF 14A
After-hours · 16:11 ET
DEF 14A ↗
1.6000
1.7600
1.5220
1.7000
365,700
Weekend
Weekend
14 · 424B2
After-hours · 17:07 ET
424B2 ↗
1.5200
1.5700
1.4900
1.5300
261,300
1.6000
1.6600
1.5000
1.5000
244,200
1.5000
1.7000
1.4500
1.6000
390,600
1.4000
1.7500
1.4000
1.5800
435,000
13 · 424B2
Next filing day · accepted 15 Sep, 18:47 ET
424B2 ↗
1.3700
1.4100
1.3600
1.4000
125,300
Weekend
Weekend
1.4300
1.4600
1.3700
1.4100
128,700
1.4600
1.5000
1.4100
1.4300
111,800
1.3600
1.4500
1.3600
1.4500
101,600
12 · PRE 14A
After-hours · 16:05 ET
PRE 14A ↗
1.3400
1.3600
1.2200
1.3600
144,100
1.3800
1.4000
1.3100
1.3400
84,300
Weekend
Weekend
11 · 424B2
After-hours · 16:41 ET
424B2 ↗
1.3200
1.3700
1.2900
1.3700
79,600
1.4100
1.4100
1.2600
1.2800
226,800
1.4000
1.4500
1.3700
1.3800
126,100
1.4500
1.4700
1.3500
1.4000
132,600
No trading
Weekend
Weekend
10 · 8-K
After-hours · 16:45 ET
8-K ↗
1.4700
1.5090
1.4100
1.4500
99,900
1.5000
1.5360
1.4800
1.4800
60,900
9 · 424B2
Next filing day · accepted 27 Aug, 18:37 ET
424B2 ↗
1.5700
1.6000
1.5100
1.5100
79,300
1.6000
1.6000
1.5400
1.5500
97,900
1.6500
1.6500
1.4000
1.5900
185,800
Weekend
Weekend
1.5400
1.6900
1.5200
1.6500
107,100
1.5800
1.6260
1.5200
1.5400
142,300
8 · 424B2
Next filing day · accepted 20 Aug, 20:32 ET
424B2 ↗
1.5500
1.6650
1.5400
1.6100
156,300
1.6000
1.6200
1.5500
1.5800
155,700
7 · 8-K
After-hours · 16:10 ET
8-K ↗
1.7800
1.8400
1.5600
1.6300
282,900
Weekend
Weekend
1.9500
1.9500
1.7100
1.7400
514,800
6 · 424B2
Next filing day · accepted 14 Aug, 19:05 ET
424B2 ↗
5 · 10-Q
After-hours · 16:09 ET
10-Q ↗
4 · 8-K
After-hours · 16:04 ET
8-K ↗
1.7700
1.7700
1.3600
1.7100
575,800
1.7300
1.7400
1.6480
1.6900
170,200
1.7900
1.8000
1.6400
1.7200
256,500
1.8100
1.8500
1.7600
1.8100
171,200
Weekend
Weekend
1.8600
1.8700
1.7700
1.7900
124,400
3 · 8-K
After-hours · 17:16 ET
8-K ↗
1.8100
1.9100
1.7500
1.8400
96,100
1.9500
1.9500
1.7700
1.7900
85,600
1.8600
1.9000
1.8030
1.8400
61,600
1.7500
1.9100
1.7000
1.8000
159,100
Weekend
Weekend
1.8400
1.8400
1.6900
1.7100
197,700
1.8800
2.0900
1.8300
1.9000
296,600
1.8400
1.9100
1.8000
1.8800
121,600
1.9900
2.0360
1.7600
1.8700
281,200
1.9900
2.0300
1.8700
1.9600
247,100
2 · 424B2
Next filing day · accepted 25 Jul, 18:23 ET
424B2 ↗
Weekend
Weekend
2.2100
2.2350
1.8610
1.9400
564,500
2.5800
2.6500
2.2000
2.2100
947,600
2.1300
2.5500
2.1000
2.4900
1,846,200
1.5500
2.1200
1.5200
2.0800
1,576,100
1 · 424B2
Next filing day · accepted 21 Jul, 21:54 ET
424B2 ↗
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.
52
424B5
424B5 (opens SEC filing in a new tab)
Next filing day · accepted 16 Jul, 18:13 ET
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38
424B5
424B5 (opens SEC filing in a new tab)
Next filing day · accepted 29 Jan, 21:47 ET
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26
424B2
424B2 (opens SEC filing in a new tab)
Next filing day · accepted 16 Oct, 19:28 ET
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19
DEFA14A
DEFA14A (opens SEC filing in a new tab)
Next filing day · accepted 06 Oct, 18:56 ET
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18
424B2
424B2 (opens SEC filing in a new tab)
Next filing day · accepted 06 Oct, 18:27 ET
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16
424B2
424B2 (opens SEC filing in a new tab)
Next filing day · accepted 24 Sep, 18:28 ET
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