Comparable stake leader
Streeterville Capital LLC
SEC ownership of TANTECH HOLDINGS LTD
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001588084.
Disclosed value leader
Streeterville Capital LLC
Comparable rows
6/7
Latest evidence
31 Mar 2026
- Symbol
- TANH on Nasdaq
- SEC evidence covered
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- Streeterville Capital LLC
- Latest 13D/G holder
- Streeterville Capital LLC
- Latest parsed evidence date
- 31 Mar 2026
- CIK
- 0001588084
- Location
- Zhejiang, China
Ownership snapshot
2 signals
Issuer
2 identity fields
Ownership snapshot
Top shareholders of TANTECH HOLDINGS LTD (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
Streeterville Capital LLC
Disclosed value leader
Streeterville Capital LLC
Comparable rows
6/7
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 8.4%
1 rows are not safely comparable across share classes.
13D/G row: Streeterville Capital LLC
Quick read
Streeterville Capital LLC leads the comparable SEC ownership view at 8.4%.
6 of 7 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.
Comparable ownership
Top 5
Streeterville Capital LLC
8.4%
Marex Group plc
4%
Ground Swell Capital, LLC
1.6%
StoneX Group Inc.
1.4%
SBI Securities Co., Ltd.
0.12%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-7 of 7 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Streeterville Capital LLC |
13D/G
|
8.4%
|
$162,302
71,185 shares
|
$0 | 21 Apr 2025 |
| Marex Group plc |
13F
Company
|
4%
|
$20,092
34,112 shares
|
— | 31 Mar 2026 |
| Ground Swell Capital, LLC |
13F
Company
|
1.6%
|
$8,129
13,801 shares
|
— | 31 Mar 2026 |
| StoneX Group Inc. |
13F
Company
|
1.4%
|
$6,767
11,489 shares
|
— | 31 Mar 2026 |
| SBI Securities Co., Ltd. |
13F
Company
|
0.12%
|
$590
1,001 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
0.05%
|
$242
411 shares
|
— | 31 Mar 2026 |
| Yefang Zhang |
3/4/5
Director
|
—
class O/S missing
|
—
1,142 shares
|
— | 29 Jun 2013 |
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.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 02 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-5 of 5 reporting-owner rows connected to TANTECH HOLDINGS LTD. Open a relationship link for the CIK-to-CIK filing trail.
Rows
5
Largest Forms 3/4/5 holder
Yefang Zhang
Net 12M change
$0
Latest report
29 May 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Yefang Zhang | Director | Mixed | 29 Jun 2013 | |||
| Shudong Wang | Director | Mixed | 01 Jul 2014 | |||
| Hongdao Qian | Director | Mixed | 01 Jul 2014 | |||
| Mengqi Liao | Director | Mixed | 26 May 2023 | |||
| Zheyuan Liu | Ceo | Mixed | 29 May 2025 |
Recent insider transactions for TANTECH HOLDINGS LTD
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.