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TANH · Tantech Holdings Ltd
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TANH Tantech (TANH) Insider Trading, Ownership & Congress Trades

Materials · Industrial organic chemicals · CIK 0001588084
Quote by TradingView
SEC filings
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
8
13F, latest reported quarter

Tantech insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

No insider purchases or sales are on record for TANTECH HOLDINGS LTD in the period covered. Source: SEC Form 4 filings, as of 2026-10-28.

Foreign private issuer: its insiders are exempt from SEC Form 4 and report in the home market, so their buys and sells do not appear here.

Insider
Filed
Shares
Value
Since filing

no insider purchases or sales on record

0 transactions on record
See all insider buying · insider selling
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Seven facts, ranked against the sector · Rank is not a forecast
Insiders
no insider buys or sells on file
Congress
no House purchase disclosed in the last 12 months
Funds
8 funds bought in last quarter
below 94% of Materials
Revenue
-10.7% year over year
below 88% of Materials
Margin
-80.9% net margin
below 92% of Materials
Buybacks
no share repurchases reported
Short interest
11.6% of the float short (float per yahoo 2026-10-27) · 1.0 days to cover · settled 2026-10-15
below 82% of Materials
What changed in the last 30 days
Nothing new filed in the last 30 days

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Who owns TANH: institutional holders (13F)

13F holdings, latest reported quarter
XTX Topco Ltd
59,767 sh
$22.7K
SUSQUEHANNA INTERNATIONAL GROUP, LLP
37,537 sh
$14.3K
JANE STREET GROUP, LLC
31,421 sh
$11.9K
Marex Group Ltd
28,236 sh
$10.7K
UBS Group AG
1,795 sh
$682

Congress trades in TANH

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

TANH planned insider sales (Form 144)

No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows 8 funds added last quarter. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
JELDLEGHWMSAVYSXTENTGREXGEVOCMTKOPNKEBNET

TANH financials

Revenue growth
-10.7%
XBRL, annual
Net margin
-80.9%
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$38.4M$42.9M$47.3M$53.5M
Gross profit$7.1M$8.9M$9.7M$10.1M
Operating income-$12.2M$4.0M$3.7M$5.9M
Net income-$31.0M-$3.2M$5.6M$2.6M
EPS (diluted)-13.64-7.6680.69120.10
Operating cash flow-$5.8M$5.4M$5.3M$8.3M
Cash$33.0M$35.2M$29.1M$19.0M
SEC XBRL, fiscal years, as known on 2026-10-28

TANH Stock Sonar score 3/7 axes

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TANH ranks highest on risk and compliance (13th percentile) and growth (12th), and lowest on institutional and government (6th), among Materials peers.

Growth
12
Inputs
  • Revenue growth, YoY-10.7% · 12 pct, sector of 128
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Institutional and government
6
Inputs
  • Funds adding, latest quarter8 · 6 pct, sector of 118
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
13
Inputs
  • Short interest, % of float+11.6% · 13 pct, sector of 145
  • Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
  • EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
  • New text in Risk Factors, latest 10-Kneeds two 10-Ks with a Risk Factors section (not 20-F filers or stubs)
4 not measured: Profitability, Financial health, Insider conviction, US patents
  • Profitability needs 2 of 4 inputs, 0 present: fewer than four consecutive quarters of net income; fewer than four consecutive quarters of operating income
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • Insider conviction needs 1 of 2 inputs, 0 present: no Form 4 purchase or sale (code P or S) in 180 days; no insider trades in 180 days
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

3 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

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