TANTECH HOLDINGS LTD Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
TANTECH HOLDINGS LTD (TANH) reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate of 149.00% for the 12-month period ending 2024-12-31, per its 20-F filed 2026-05-14.
Financial Statements › Notes › Share-Based Payment Arrangement, Disclosure › Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate · last filed 2026-05-14
| Period end | Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 1 month | Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 12 month |
|---|---|---|
| 2024-12-31 | 149.00% 20-F · filed 2026-05-14 | |
| 2023-12-31 | 135.00% 20-F · filed 2026-05-14 | |
| 2023-06-29 | 142.00% 20-F · filed 2026-05-14 |