Michael A Luther
CIK 1590078 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 21, 2018 · Latest: Feb. 21, 2018
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 7 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 16, 2018 | PRPO | A | 77,563 | — | — | 77,563 Direct | — | Acquired | (price as of 2026-08-20) |
| Feb. 16, 2018 | PRPO | A | 31,025 | — | — | 31,025 Direct | — | Acquired | (price as of 2026-08-20) |
| Sept. 26, 2017 | PRPO | A | 7,000 | — | — | 7,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Dec. 13, 2016 | PRPO | A | 5,000 | — | — | 105,000 Direct | +5.00% | Acquired | (price as of 2026-08-20) |
| Oct. 6, 2016 | PRPO | A | 5,000 | — | — | 5,000 Direct | — | Acquired | (price as of 2026-08-20) |
| April 1, 2015 | PRPO | A | 5,000 | — | — | 5,000 Direct | — | Acquired | (price as of 2026-08-20) |
| March 13, 2014 | PRPO | A | 5,000 | — | — | 5,000 Direct | — | Acquired | (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 16, 2018 | PRPO | Stock Option (Right to Buy) | Common Stock (77,563) | $0.71 | Feb. 16, 2028 | 77,563 | Acquired |
| Feb. 16, 2018 | PRPO | Stock Option (Right to Buy) | Common Stock (31,025) | $0.71 | Feb. 16, 2028 | 31,025 | Acquired |
| Sept. 26, 2017 | PRPO | Stock Option (Right to Buy) | Common Stock (7,000) | $1.87 | Sept. 26, 2027 | 7,000 | Acquired |
| Dec. 13, 2016 | PRPO | Stock Option (Right to Buy) | Common Stock (5,000) | $0.34 | Dec. 13, 2016 | 5,000 | Acquired |
| Oct. 6, 2016 | PRPO | Stock Option (Right to Buy) | Common Stock (5,000) | $0.26 | Oct. 6, 2026 | 5,000 | Acquired |
| April 1, 2015 | PRPO | Stock Option (Right to Buy) | Common Stock (5,000) | $1.44 | April 1, 2025 | 5,000 | Acquired |
| March 13, 2014 | PRPO | Stock Option (Right to Buy) | Common Stock [F1] (5,000) | $5.68 | March 12, 2024 | 5,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).