Security key
G2124G120
Ridgetech Inc. - Ordinary Shares, par value $0.001 per share (RDGT)
CUSIP: G2124G120
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Ordinary Shares, par value $0.001 per share
- Total 13F shares
- 20,167
- Total 13F value
- $57,476
- Share change
- -30,586
- SEC-reported price per share
- $2.85
- Number of holders
- 1
- Value change
- -$37,672
- Number of sells
- 3
- Shares outstanding
- 18,237,705
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
1
Top holders
1
RDGT full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
Ridgetech Inc. SEC filings
Ridgetech Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP G2124G120
Recent filing periods:
Ownership snapshot
Top reported holders of RDGT - Ridgetech Inc. - Ordinary Shares, par value $0.001 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
Lingtao Kong
Disclosed value leader
Lingtao Kong
Comparable rows
5/5
Latest evidence
24 Nov 2025
13D/G
13F
Lead comparable stake: 12%
13D/G row: Lingtao Kong
Quick read
Lingtao Kong leads the comparable SEC ownership view at 12%.
5 of 5 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 Lingtao Kong's linked filing trail.
Comparable ownership
Top 5
Lingtao Kong
12%
HHLR ADVISORS, LTD.
0.11%
TWO SIGMA SECURITIES, LLC
0.08%
CITADEL ADVISORS LLC
0.06%
UBS Group AG
0.03%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Lingtao Kong |
13D/G
|
12%
|
$3,760,250
2,225,000 shares
|
$0 | 24 Nov 2025 |
| HHLR ADVISORS, LTD. |
13F
Company
|
0.11%
|
$24,604
20,167 shares
|
— | 30 Sep 2025 |
| TWO SIGMA SECURITIES, LLC |
13F
Company
|
0.08%
|
$17,660
14,258 shares
|
— | 30 Sep 2025 |
| CITADEL ADVISORS LLC |
13F
Company
|
0.06%
|
$14,047
11,514 shares
|
— | 30 Sep 2025 |
| UBS Group AG |
13F
Company
|
0.03%
|
$5,965
4,814 shares
|
— | 30 Sep 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 Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1
Shares
20,167
Rows available
1
| 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 Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
4
Q4 2025 holders
1
Holder diff
-3
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend