LIQT · Insider Trading
LiqTech International, Inc.
Every open-market purchase and sale reported by LIQT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | Robert Wowk | Director | Buy | +50,000 | +$50.00K |
| 2026-06-09 | Bleichroeder LP | 10%+ Owner | MIXED | +3,700,000 | +$3.70M |
| 2026-01-13 | Fei Chen | Chief Executive Officer | F | −67,860 | −$101.11K |
| 2026-01-13 | David Kowalczyk | CFO and COO | MIXED | +88,779 | −$8.33K |
| 2025-09-16 | Fei Chen | Chief Executive Officer | F | −13,021 | −$30.47K |
| 2025-03-28 | Bleichroeder LP | 10%+ Owner | J | — | — |
| 2025-01-13 | Richard A Meeusen | Director | A | +29,294 | — |
| 2025-01-13 | Martin Kunz | Director | A | +26,516 | — |
| 2025-01-13 | Peyton Boswell | Director | A | +28,158 | — |
| 2025-01-13 | Fei Chen | Chief Executive Officer | A | +201,335 | — |
| 2025-01-13 | Alexander J Buehler | Director | A | +53,030 | — |
| 2025-01-07 | Fei Chen | Chief Executive Officer | F | −28,394 | −$53.10K |
| 2024-05-21 | Phillip Massie Price | Interim CFO | A | −13,748 | — |
| 2024-03-11 | Simon Seidelin Stadil | Chief Financial Officer | F | −17,163 | −$60.24K |
| 2024-03-11 | Fei Chen | Chief Executive Officer | F | −12,835 | −$45.05K |
| 2024-01-10 | Simon Seidelin Stadil | Chief Financial Officer | A | +38,405 | — |
| 2024-01-10 | Fei Chen | Chief Executive Officer | A | +106,681 | — |
| 2024-01-10 | Martin Kunz | Director | A | +10,470 | — |
| 2024-01-08 | Alexander J Buehler | Director | A | +20,940 | — |
| 2024-01-08 | Richard A Meeusen | Director | A | +10,470 | — |
| 2024-01-08 | Peyton Boswell | Director | A | +10,470 | — |
| 2023-12-04 | Simon Seidelin Stadil | Chief Financial Officer | Sell | −15,000 | −$48.57K |
| 2023-11-24 | Simon Seidelin Stadil | Chief Financial Officer | Sell | −3,100 | −$11.07K |
| 2023-11-15 | Simon Seidelin Stadil | Chief Financial Officer | Sell | −6,900 | −$26.64K |
| 2023-09-05 | Fei Chen | Chief Executive Officer | Buy | +32,784 | +$112.85K |
| 2023-07-27 | Martin Kunz | Director | A | +11,932 | — |
| 2023-01-31 | Mark Vernon | Director | A | +196,000 | — |
| 2023-01-31 | Peyton Boswell | Director | A | +98,000 | — |
| 2023-01-31 | Alexander J Buehler | Director | A | +1,119,545 | — |
| 2023-01-05 | Simon Seidelin Stadil | Chief Financial Officer | A | +348,718 | — |
| 2023-01-05 | Fei Chen | Chief Executive Officer | A | +968,661 | — |
| 2023-01-05 | Simon Seidelin Stadil | Chief Financial Officer | A | +735,294 | — |
| 2023-01-05 | Mark Vernon | Director | A | +196,000 | — |
| 2023-01-05 | Peyton Boswell | Director | A | +98,000 | — |
| 2022-09-15 | Fei Chen | Chief Executive Officer | A | +625,000 | — |
| 2022-05-20 | Richard A Meeusen | Director | Buy | +192,125 | +$102.75K |
| 2022-05-19 | Mark Vernon | Director | Buy | +500,000 | +$250.00K |
| 2022-05-19 | Alexander J Buehler | Interim CEO | Buy | +2,000,000 | +$1.00M |
| 2022-05-19 | Peyton Boswell | Director | Buy | +500,000 | +$250.00K |
| 2022-05-19 | Simon Seidelin Stadil | Chief Financial Officer | Buy | +80,000 | +$40.00K |
| 2022-05-13 | Laurence W Lytton | 10%+ Owner | Buy | +1,375,000 | +$687.50K |
| 2022-01-25 | Laurence W Lytton | 10%+ Owner | Buy | +36,189 | +$192.80K |
| 2022-01-05 | Mark Vernon | Director | A | +12,479 | — |
| 2022-01-05 | Peyton Boswell | Director | A | +6,240 | — |
| 2022-01-05 | Mathiesen Sune | Chief Executive Officer | A | +88,073 deriv. | — |
| 2022-01-05 | Alexander J Buehler | Director | A | +6,240 | — |
| 2022-01-05 | Laurence W Lytton | 10%+ Owner | Buy | +23,685 | +$140.93K |
| 2021-12-22 | Laurence W Lytton | 10%+ Owner | Buy | +81,095 | +$407.22K |
| 2021-12-06 | Peyton Boswell | Director | Buy | +10,000 | +$48.90K |
| 2021-10-12 | Mathiesen Sune | Chief Executive Officer | A | +52,941 deriv. | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Bleichroeder LP | 10%+ Owner | 3,882,239 | $1.36M |
| Alexander J Buehler | Interim CEO | 467,623 | $164.37K |
| Fei Chen | Chief Executive Officer | 417,898 | $146.89K |
| Peyton Boswell | Director | 121,305 | $42.64K |
| David Kowalczyk | CFO and COO | 94,368 | $33.17K |
| Richard A Meeusen | Director | 67,281 | $23.65K |
| Robert Wowk | Director | 50,000 | $17.57K |
| Martin Kunz | Director | 48,918 | $17.19K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the LIQT quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.