GWHT SEC Filings: 8-K, 10-Q, S-3 & 424B – ESS Tech

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 11, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 7, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Mar 5, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 13, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 14, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 15, 2025

News

TYPE

HEADLINE

FILED AT

8-K

ESS Tech Transitions to OTC Trading Platform Following NYSE Suspension and Delisting Proceedings

Oct 5, 2026

8-K

ESS Tech Received NYSE Delisting Notice and Plans to Appeal

Sep 30, 2026

8-K

ESS Tech, Inc. Enters into Employment Agreements with CFO and CSO/General Counsel

Sep 3, 2026

8-K

ESS Tech, Inc. Announces $3.2 Million Registered Direct Offering and Concurrent Private Placement

Aug 21, 2026

8-K

ESS Tech, Inc. Announces Q2 2026 Financial Results and Strategic Business Combination LOI

Aug 11, 2026

8-K

ESS Tech, Inc. Reports Cash Position as of July 31, 2026

Aug 6, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Sep 16, 2026

424B5

REGISTERED OFFERING

Aug 20, 2026

424B5

July 2026 ATM | Offering amount: $75,000,000 | Bank: Yorkville Ives & Co., LLC; Roth Capital Partners, LLC

Jul 16, 2026

424B5

REGISTERED OFFERING

Jan 29, 2026

424B3

UPDATED | SHARE RESALE REGISTRATION | Shares amount: 1,181,416 | Warrants amount: 1,181,416

Dec 11, 2025

424B5

December 2025 ATM | Offering amount: $75,000,000

Dec 11, 2025

Registrations

TYPE

HEADLINE

FILED AT

S-3

SHARE RESALE REGISTRATION

Sep 8, 2026

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Mar 5, 2026

S-3

November 2025 SHELF and ATM

Nov 13, 2025

Form D - Notice of Exempt Offering of Securities - Item 06b

Jul 23, 2025

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Mar 31, 2025

S-8

Registration

Feb 9, 2024

Proxies

TYPE

HEADLINE

FILED AT

DEF 14A

Form DEF 14A - Other definitive proxy statements

Sep 24, 2026

PRE 14A

Form PRE 14A - Other preliminary proxy statements

Sep 14, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 15, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 15, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Oct 6, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Sep 22, 2025

Ownerships

TYPE

HEADLINE

FILED AT

S-3

Form S-3 - Registration statement under Securities Act of 1933

Sep 8, 2026

Suhadolnik Kate Eileen (Reporting)

Aug 24, 2026

Goodman Kelly F. (Reporting)

Aug 24, 2026

SCHEDULE 13G/A

Alyeska Investment Group, L.P. (Filed by)

Aug 14, 2026

SCHEDULE 13G/A

Ayrton Capital LLC (Filed by)

Aug 13, 2026

Buckley Drew P (Reporting)

Jun 8, 2026

Other

TYPE

HEADLINE

FILED AT

EFFECT

Form EFFECT - Notice of Effectiveness

Sep 17, 2026

Form SD - Specialized disclosure report

May 29, 2026

EFFECT

Form EFFECT - Notice of Effectiveness

Dec 12, 2025

CORRESP

Form CORRESP - Correspondence

Dec 9, 2025

Form SD - Specialized disclosure report

May 30, 2025

Form SD - Specialized disclosure report

May 24, 2024

ESS Tech Inc GWHT · SEC Filings