ARMSTRONG R DOUGLAS PHD 13D and 13G filings for PRECISION THERAPEUTICS INC:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2020-04-01 5:00 pm Sale | 2020-03-12 | 13D | PRECISION THERAPEUTICS INC AIPT | ARMSTRONG R DOUGLAS PHD | 212,811 3.610% | -1,573,902 (-88.09%) | Filing |