| 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 |
|---|---|---|---|---|---|---|---|---|---|
Insider activity in PTIX over the last quarter tilts toward buying: insiders added a net 41,554 shares worth roughly $24K.
Counted by filing, the last 12 months brought 7 open-market purchases by 1 insider worth about $31K and no sales. There were none in the 12 months before that either.
The largest open-market purchase in the last two years was 20,000 shares by Garo H Armen (Executive Chair & Principal Officer) at an average $0.65 on August 21, 2026, about $13K.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| Other | 73.5K | $47.8K | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 21, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 20,000 | $0.65 | $13,000.00 | +37.4% | - | - | |
| Aug 20, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 16,634 | $0.59 | $9,810.73 | +45.1% | - | - | |
| Aug 19, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 2,700 | $0.35 | $945.00 | +7.9% | - | - | |
| Aug 11, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 2,220 | $0.32 | $710.40 | +6.9% | - | - | |
| Aug 6, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 685 | $0.22 | $150.70 | +2.2% | - | - | |
| Aug 5, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 5,000 | $0.26 | $1,294.00 | +19.0% | +149.4% | - | |
| Jul 30, 2026 | Garo H Armen56 | Executive Chair & Principal Officer | Buy | 26,291 | $0.18 | $4,805.99 | New | +291.0% | - | |
| Oct 12, 2023 | Alexander K. Arrow | Chief Financial Officer | Buy | 8,000 | $0.81 | $6,480.00 | +21.2% | +21.7% | -31.0% | |
| May 18, 2022 | Alexander K. Arrow | Chief Financial Officer | Buy | 31,000 | $0.71 | $22,090.00 | +25.8% | -13.9% | -35.0% | |
| Apr 30, 2021 | Alexander K. Arrow | Chief Financial Officer | Buy | 2,000 | $2.29 | $4,580.00 | +1.7% | -1.3% | -63.8% |