PUBC · Purebase Corp · Insider Trading
Substantial doubt about the company's ability to continue as a going concern.
“As such, these matters raise substantial doubt about the Company's ability to continue as a going concern for a period of twelve months from the issuance date of this report.”View the 10-Q filed Apr 15, 2026
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-05-08 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↓
Filing footnotes — Convertible Note (Indirect)
The reporting person is the owner and manager of CoreTer. |
Convertible Note
(I)
|
1 |
| 2026-05-08 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares issued to CoreTer, LLC ("CoreTer") as reimbursement for payment of $453,957.14 in expenses on behalf of the Issuer. The reporting person is the owner and manager of CoreTer. |
Common stock
(I)
|
22,526,655 |
| 2026-05-08 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares issued to CoreTer pursuant to the terms a Line of Credit, dated February 27, 2026, between the Issuer and CoreTer and related convertible promissory note. The reporting person is the owner and manager of CoreTer. |
Common stock
(I)
|
50,311,184 |
| 2025-06-16 | BARTO CRAIG C |
10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 50% owner. The Reporting Person disclaims beneficial ownership as to 50% of such shares. |
Common stock
(I)
|
8,436,559 |
| 2025-06-16 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
13,449,106 |
| 2025-06-16 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
8,436,559 |
| 2025-06-16 | BARTO CRAIG C |
10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 50% owner. The Reporting Person disclaims beneficial ownership as to 50% of such shares. |
Common stock
(I)
|
13,449,106 |
| 2025-06-16 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
8,436,559 |
| 2025-06-16 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
5,335,108 |
| 2025-06-16 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
5,335,108 |
| 2025-06-16 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
13,449,106 |
| 2025-06-16 | BARTO CRAIG C |
10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 50% owner. The Reporting Person disclaims beneficial ownership as to 50% of such shares. |
Common stock
(I)
|
5,335,108 |
| 2025-02-06 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock option (right to buy)
|
200,000 |
| 2025-02-06 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock option (right to buy)
|
200,000 |
| 2025-02-06 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock option (right to buy)
|
200,000 |
| 2025-02-06 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock option (right to buy)
|
242,424 |
| 2025-02-06 | GILLINGS STEPHEN CRAIG |
Chief Financial Officer |
Award↑
|
Stock Option (right to buy)
|
200,000 |
| 2024-06-04 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
10,256,400 |
| 2024-06-04 | BARTO CRAIG C |
10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 50% owner. The Reporting Person disclaims beneficial ownership as to 50% of such shares. |
Common stock
(I)
|
10,256,400 |
| 2024-06-04 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
10,256,400 |
| 2024-02-26 | BARTO CRAIG C |
10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 50% owner. The Reporting Person disclaims beneficial ownership as to 50% of such shares. |
Common stock
(I)
|
2,500,330 |
| 2024-02-26 | BARTO CRAIG C |
10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 50% owner. The Reporting Person disclaims beneficial ownership as to 50% of such shares. |
Common stock
(I)
|
6,377,593 |
| 2024-02-26 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
2,500,330 |
| 2024-02-26 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
6,377,593 |
| 2024-02-26 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
6,377,593 |
| 2024-02-26 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the reporting person is a 25% owner. The Reporting Person disclaims beneficial ownership as to 75% of such shares. |
Common stock
(I)
|
2,500,330 |
| 2023-12-20 | GILLINGS STEPHEN CRAIG |
Chief Financial Officer |
Award↑
|
Stock Option (right to buy)
|
200,000 |
| 2023-12-13 | GILLINGS STEPHEN CRAIG |
Chief Financial Officer |
Award↑
|
Stock Option (right to buy)
|
200,000 |
| 2023-09-28 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock Option (right to buy)
|
200,000 |
| 2023-09-13 | Barto Bradford Charles |
Director |
Award↑
|
Stock Option (right to buy)
|
200,000 |
| 2023-08-10 | Kurtis Kimberly Erin |
Director |
Other↓
Filing footnotes — Stock option (right to buy) (Direct)
Cancellation of option in connection with grant of replacement option with the repricing of the exercise price to $0.06 per share and the extension of the term of the option to 2/6/2030. |
Stock option (right to buy)
|
200,000 |
| 2023-05-25 | Guzy Jeffrey J |
Director |
Buy↑
|
Common Stock
|
150,000 |
| 2023-05-25 | Kurtis Kimberly Erin |
Director |
Buy↑
|
Common Stock
|
80,000 |
| 2023-05-25 | Guzy Jeffrey J |
Director |
Buy↑
|
Common Stock
|
80,000 |
| 2023-04-08 | Guzy Jeffrey J |
Director |
Award↑
|
Stock option (right to buy)
|
350,000 |
| 2023-02-27 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↓
Filing footnotes — Common stock (Direct)
Represents shares transferred by the Reporting Person to the Company and third parties in connection with a settlement agreement. |
Common stock
|
400,000 |
| 2022-08-26 | Kurtis Kimberly Erin |
Director |
Other↓
Filing footnotes — Stock option (right to buy) (Direct)
Cancellation of option in connection with grant of replacement option with the repricing of the exercise price to $0.06 per share and the extension of the term of the option to 2/6/2030. |
Stock option (right to buy)
|
242,424 |
| 2022-08-26 | Kurtis Kimberly Erin |
Director |
Other↓
Filing footnotes — Stock option (right to buy) (Direct)
Cancellation of option in connection with grant of replacement option with the repricing of the exercise price to $0.06 per share and the extension of the term of the option to 2/6/2030. |
Stock option (right to buy)
|
200,000 |
| 2022-08-26 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock Option (right to buy)
|
200,000 |
| 2022-08-26 | Guzy Jeffrey J |
Director |
Award↑
|
Stock Option (right to buy)
|
250,000 |
| 2022-08-26 | Kurtis Kimberly Erin |
Director |
Award↑
|
Stock Option (right to buy)
|
242,424 |
| 2022-08-10 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↓
Filing footnotes — Common stock (Direct)
Represents shares paid to third parties as consideration for making loans to the Reporting Person. |
Common stock
|
1,000,000 |
| 2022-07-07 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the Reporting Person is a 33% owner. The Reporting Person disclaims beneficial ownership as to 66% of such shares. |
Common stock
(I)
|
17,020,749 |
| 2022-07-07 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the Reporting Person is a 33.3% owner. The Reporting Person disclaims beneficial ownership as to 66.6% of such shares. |
Common stock
(I)
|
6,720,905 |
| 2022-07-07 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Common stock (Indirect)
Represents shares held by US Mine Corporation, of which the Reporting Person is a 33.3% owner. The Reporting Person disclaims beneficial ownership as to 66.6% of such shares. |
Common stock
(I)
|
17,020,749 |
| 2022-06-17 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↓
Filing footnotes — Common stock (Direct)
Represents shares paid to third parties as consideration for making loans to the Reporting Person. |
Common stock
|
500,000 |
| 2022-02-22 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↓
Filing footnotes — Common stock (Direct)
Represents shares paid to third parties as consideration for making loans to the Reporting Person. |
Common stock
|
1,400,000 |
| 2021-12-07 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↓
Filing footnotes — Common stock (Direct)
Represents shares paid to third parties as consideration for making loans to the Reporting Person. |
Common stock
|
1,150,000 |
| 2021-10-06 | Dockter A Scott |
Director, Chief Executive Officer, 10% Owner |
Other↑
Filing footnotes — Stock option (right to buy) (Indirect)
Option issued to US Mine Corp. as consideration for rights granted under a mineral extraction agreement with the Issuer. 58,000,000 shares subject to the option were exercisable as of 4/6/22, 29,000,000 shares vest and become exercisable on 10/6/22 and 29,000,000 shares vest and become exercisable on 4/6/23. Represents shares exercisable under an option held by US Mine LLC, of which the Reporting Person is a 33.3% owner. The Reporting Person disclaims beneficial ownership as to 66.6% of such shares. |
Stock option (right to buy)
(I)
|
116,000,000 |
| 2021-10-06 | Bremer John A |
Director, 10% Owner |
Other↑
Filing footnotes — Stock option (right to buy) (Indirect)
Option issued to US Mine Corp. as consideration for rights granted under a mineral extraction agreement with the Issuer. Represents shares exercisable under an option held by US Mine LLC, of which the Reporting Person is a 33.3% owner. The Reporting Person disclaims beneficial ownership as to 66.6% of such shares. 58,000,000 shares subject to the option were exercisable as of 4/6/22, 29,000,000 shares vest and become exercisable on 10/6/22 and 29,000,000 shares vest and become exercisable on 4/6/23. |
Stock option (right to buy)
(I)
|
116,000,000 |