Form 4 holding
Director
TANTECH HOLDINGS LTD
- Security class
- Class B Common Shares
- Shares / value
- 1,142
- Estimated value
- Report date
- 29 Jun 2013
- Price
- Ownership
- Through TANBSOK GROUP LTD
Yefang Zhang - Director at TANTECH HOLDINGS LTD
Issuer-level insider activity
- Role
- Director
- Issuer ticker
- TANH on Nasdaq
- Entity type
- Individual
- Source filing history
- Open source filing history
Identity
Names, identifiers, and filing context for this profile.
1 identity field
Source evidence
Original filing metadata and source links for verification.
1 source field
No buys or sells have been reported by Yefang Zhang since 08 Sep 2025
Reported holdings for Yefang Zhang in TANTECH HOLDINGS LTD
Transaction history for Yefang Zhang in TANTECH HOLDINGS LTD
| Sym | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares after | Date | Ownership |
|---|
* marks a reported price that did not pass the local price check.