ESS Tech, Inc GWH

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ESS Tech, Inc. Common Stock · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 2.08 → 0.89 · -57.3%
9.0504.8950.740 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 33 34,35 36 37 38,39 40,41 42,43,44 45,46 47 48 49 50 51 52,53 Jul 25Oct 25Jan 26Apr 26Jul 26

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.

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.