Security key
26916J205
ESS Tech, Inc. - Common Stock, $0.0001 par value per share (GWH)
CUSIP: 26916J205
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 99
- Total 13F value
- $94
- Share change
- 0
- SEC-reported price per share
- $0.95
- Number of holders
- 2
- Shares outstanding
- 27,184,466
Holder snapshot
3 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
2
Top holders
2
GWH full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
ESS Tech, Inc. SEC filings
ESS Tech, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 26916J205
Recent filing periods:
Ownership snapshot
Top reported holders of GWH - ESS Tech, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
SOFTBANK GROUP CORP.
Disclosed value leader
SOFTBANK GROUP CORP.
Comparable rows
15/15
Latest evidence
29 May 2026
3/4/5
13D/G
13F
Lead comparable stake: 20%
13D/G row: SOFTBANK GROUP CORP.
Showing 1-6 of 15 holder rows.
Quick read
SOFTBANK GROUP CORP. leads the comparable SEC ownership view at 20%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens SOFTBANK GROUP CORP.'s linked filing trail.
Comparable ownership
Top 5
SOFTBANK GROUP CORP.
20%
Ayrton Capital LLC
10%
Alyeska Investment Group, L.P.
5.2%
Jigish Dhirajlal Trivedi
1%
Anthony Rabb
0.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SOFTBANK GROUP CORP. |
3/4/5
13D/G
13F
Director, 10%+ Owner · SB Energy Global Holdings One Ltd. · Company
|
20%
from 13D/G
|
$44,970,887
35,953,699 shares
|
— | 09 Nov 2021 |
| Ayrton Capital LLC |
13D/G
|
10%
|
$3,290,312
3,018,635 shares
|
$0 | 31 Mar 2026 |
| Alyeska Investment Group, L.P. |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$1,638,000
1,400,000 shares
|
— | 31 Mar 2026 |
| Jigish Dhirajlal Trivedi |
3/4/5
COO
|
1%
|
$464,750
275,000 shares
|
— | 18 Aug 2025 |
| Anthony Rabb |
3/4/5
Chief Financial Officer
|
0.4%
|
$214,408
109,392 shares
|
— | 20 May 2025 |
| Michael R. Niggli |
3/4/5
Director
|
0.33%
|
$116,256
90,825 shares
|
— | 13 Oct 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
2
Shares
99
Rows available
2
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
49
Q2 2026 holders
2
Holder diff
-47
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend