6 institutions reported holding $35,820 of TANTECH HLDGS LTD (TANH) in SEC 13F filings for 2026-03-31. Largest institutional holders: Marex Group plc ($20,092), Ground Swell Capital, LLC ($8,129), StoneX Group Inc. ($6,767), SBI Securities Co., Ltd. ($590), UBS Group AG ($242). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Marex Group plc | $20,092 | 34,112 | Trimmed |
| 2 | Ground Swell Capital, LLC | $8,129 | 13,801 | New |
| 3 | StoneX Group Inc. | $6,767 | 11,489 | New |
| 4 | SBI Securities Co., Ltd. | $590 | 1,001 | Added |
| 5 | UBS Group AG | $242 | 411 | New |
| 6 | XTX Topco Ltd | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31