Robert I Taber
CIK 1159883 · View on SEC EDGAR ↗
Insider
First SEC filing: June 27, 2014 · Latest: June 27, 2014
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 16 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
16 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 28, 2013 | PTN | P | 5,000 | $0.59 | $2,950 | 5,500 Indirect | +1000.00% | Acquired | -98.6% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| June 25, 2014 | PTN | restricted share units | common stock (15,000) | — | June 25, 2015 | 15,000 | Acquired |
| June 25, 2014 | PTN | stock option (right to buy) | common stock (15,000) | $1.02 | June 25, 2024 | 15,000 | Acquired |
| June 27, 2013 | PTN | stock option (right to buy) | common stock (30,000) | $0.62 | June 27, 2023 | 30,000 | Acquired |
| July 17, 2012 | PTN | stock option (right to buy) | common stock (15,000) | $0.72 | July 17, 2022 | 15,000 | Acquired |
| June 22, 2011 | PTN | stock option (right to buy) | common stock (12,500) | $0.86 | June 22, 2021 | 12,500 | Acquired |
| June 22, 2011 | PTN | stock option (right to buy) | common stock (20,000) | $0.86 | June 22, 2021 | 20,000 | Acquired |
| June 22, 2011 | PTN | stock option (right to buy) | common stock (40,000) | $0.86 | June 22, 2021 | 40,000 | Acquired |
| July 21, 2010 | PTN | stock option (right to buy) | common stock (40,000) | $0.17 | July 21, 2020 | 40,000 | Acquired |
| July 1, 2009 | PTN | stock option (right to buy) | common stock (40,000) | $0.28 | July 1, 2019 | 40,000 | Acquired |
| July 1, 2008 | PTN | stock option (right to buy) | common stock (40,000) | $0.18 | July 1, 2018 | 40,000 | Acquired |
| July 1, 2008 | PTN | stock option (right to buy) | common stock (150,000) | $0.18 | July 1, 2018 | 150,000 | Acquired |
| July 1, 2007 | PTN | stock option (right to buy) | common stock (20,000) | $1.98 | July 1, 2017 | 20,000 | Acquired |
| July 1, 2006 | PTN | stock option (right to buy) | common stock (20,000) | $2.00 | July 1, 2016 | 20,000 | Acquired |
| July 1, 2005 | PTN | stock option (right to buy) | common stock (20,000) | $1.75 | July 1, 2015 | 20,000 | Acquired |
| July 1, 2004 | PTN | stock option (right to buy) | common stock (20,000) | $4.21 | July 1, 2014 | 20,000 | Acquired |
| Dec. 5, 2003 | PTN | stock option (right to buy) | common stock (10,000) | $3.13 | Dec. 5, 2013 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).