Gilbert R Whitaker Jr
CIK 1299597 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 23, 2006 · Latest: Aug. 23, 2006
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 4 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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 21, 2006 | WLK | A | 1,345 | — | — | 1,345 Direct | — | Acquired | (price as of 2026-08-21) |
| Aug. 21, 2006 | WLK | A | 831 | — | — | 1,612 Direct | +106.40% | Acquired | (price as of 2026-08-21) |
| Sept. 9, 2005 | WLK | A | 781 | — | — | 781 Direct | — | Acquired | (price as of 2026-08-21) |
| Aug. 16, 2004 | WLK | A | 2,759 | — | — | 2,759 Direct | — | Acquired | (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 21, 2006 | WLK | Options (right to buy) | Common Stock (1,345) | $30.07 | Aug. 21, 2016 | 1,345 | Acquired |
| Aug. 16, 2004 | WLK | Incentive Stock Option | Common Stock (2,759) | $14.50 | Aug. 16, 2014 | 2,759 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).