Figures computed from official regulatory filings — .
Ownershipinsiders 84.27% · institutions 0%
In USD · as of Oct 19, 2026
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PureBase Corporation, an industrial mineral and natural resource company, engages in the provision of solutions to the agriculture and construction materials markets in the United States. The company offers PureBase Shade Advantage WP, a natural mineral plant protectant that reduces sunburn damage to plant tissue exposed to UV and infrared radiation; humic acid product derived from leonardite, which can be an important medium for soil health, water retention, and positive interactions with the soil microbiome; and other specialized fertilizers, sun protectants, soil amendments, and bio-stimulants for organic and non-organic sustainable agriculture. It is also involved in the development and testing of kaolin-based product, that can help in creating lower CO2-emitting concrete using supplementary cementitious materials (SCM) for cement markets. The company was formerly known as Port of Call Online, Inc. and changed its name to Purebase Corporation in January 2015. Purebase Corporation was incorporated in 2010 is headquartered in Sutter Creek, California.
Market information source · Oct 19, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 19, 2026
Open-market timeline · full history
17 buys— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Dockter Scott | Other | $450.5K | SEC |
| Dockter Scott | Other | $1M | SEC |
| Dockter Scott | OtherD (derivative) | $1M | SEC |
| Kurtis Kimberly Erin | AwardD (derivative) | $14.5K | Unusual size | SEC |
| Kurtis Kimberly Erin | OtherD (derivative) | $30K | Unusual size | SEC |
| Kurtis Kimberly Erin | AwardD (derivative) | $12K | Unusual size | SEC |
| Kurtis Kimberly Erin | OtherD (derivative) | $72K | SEC |
| Kurtis Kimberly Erin | AwardD (derivative) | $12K | Unusual size | SEC |
| Kurtis Kimberly Erin | OtherD (derivative) | $48K | SEC |
| Kurtis Kimberly Erin | OtherD (derivative) | $58.2K | SEC |
| Kurtis Kimberly Erin | AwardD (derivative) | $12K | Unusual size | SEC |
| GILLINGS STEPHEN CRAIG | AwardD (derivative) | $12K | SEC |
| GILLINGS STEPHEN CRAIG | AwardD (derivative) | $12K | SEC |
| Bremer John Atrack record | Other | $1.1M | SEC |
| Dockter Scott | Other | $426.8K | SEC |
| GILLINGS STEPHEN CRAIG | Award | $12K | SEC |
| Dockter Scott | Other | $1.1M | SEC |
| BARTO CRAIG C | Other | $674.9K | SEC |
| BARTO CRAIG C | Other | $1.1M | SEC |
| Bremer John Atrack record | Other | $674.9K | SEC |
| BARTO CRAIG C | Other | $426.8K | Unusual size | SEC |
| Bremer John Atrack record | Other | $426.8K | SEC |
| Dockter Scott | Other | $674.9K | SEC |
| Dockter Scott | Other | $975.1K | SEC |
| Dockter Scott | Other | $1M | SEC |