Ruth I Dreessen
CIK 1218440 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 13, 2005 · Latest: Sept. 13, 2005
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 5 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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 9, 2005 | WLK | A | 4,470 | — | — | 4,470 Direct | — | Acquired | (price as of 2026-08-20) |
| Sept. 9, 2005 | WLK | A | 2,898 | — | — | 2,965 Direct | +4325.37% | Acquired | (price as of 2026-08-20) |
| Feb. 16, 2005 | WLK | F | 33 | $35.03 | $1,156 | 67 Direct | -33.00% | Disposed | 350.7% (price as of 2026-08-20) |
| Aug. 16, 2004 | WLK | A | 24,200 | — | — | 24,200 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 16, 2004 | WLK | A | 100 | — | — | 100 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 |
|---|---|---|---|---|---|---|---|
| Sept. 9, 2005 | WLK | Employee Option (right to buy) | Common Stock (4,470) | $27.22 | Aug. 31, 2015 | 4,470 | Acquired |
| Aug. 16, 2004 | WLK | Incentive Stock Option | Common Stock (24,200) | $14.50 | Aug. 16, 2014 | 24,200 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).