| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
Klaas de Boer last filed a Form 4 in September 2025, as Director at SMTK. Klaas de Boer's net worth is not public. Form 4 filings only show shares in the companies where this person was an insider, as of the last filing.
At the last filing, the largest reported position was 11,430 shares of SMTK. Net of sales, the SMTK filings show accumulation of 200,000 shares.
Klaas de Boer has 9 Form 4 filings on record from February 2021 to September 2025, all as Director at SmartKem (SMTK), 2021–2025.
The 11 reported transactions were 5 option or other derivative awards, 3 open-market purchases, 1 conversion and 1 stock award, plus smaller numbers of other types.
Counted by filing, the open-market trades come to 1 purchase worth about $400K and no sales.
The only open-market purchase was 200,000 shares of SMTK at an average $2.00 on February 23, 2021, about $400K.
Shares as reported in the last Form 4 for each company; the most recent is from September 2025. Values use today's prices. Any trades after the last filing were not reported, so current holdings may differ.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|
| Feb 23, 2021 | SMTK Smartkem, Inc. | Director | Buy | 200,000 | $2.00 | $400,000.00 | New |