Jeffrey C Mack
CIK 901124 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 29, 2006 · Latest: Dec. 29, 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
4 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 27, 2006 | CREX | P | 2,000 | $4.00 | $8,000 | 2,000 Direct | — | Acquired | -99.8% (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 |
|---|---|---|---|---|---|---|---|
| Dec. 27, 2007 | CREX | Stock Option (right to buy) [F1] | Common Stock (120,000) | $2.80 | Dec. 27, 2012 | 120,000 | Acquired |
| Feb. 2, 2007 | CREX | Stock Option (right to buy) [F2] | Common Stock (125,000) | $5.65 | Dec. 27, 2011 | 125,000 | Acquired |
| Feb. 2, 2007 | CREX | Stock Option (right to buy) [F2] | Common Stock (166,666) | $4.00 | March 30, 2011 | 166,666 | Acquired |
| Feb. 2, 2007 | CREX | Warrant to Purchase Common Stock [F1] | Common Stock (21,666) | $9.00 | March 31, 2011 | 21,666 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 29, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (27,388) | 27,388 | Direct |
| Dec. 29, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (4,222) | 4,222 | Direct |
| Dec. 29, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (3,744) | 3,744 | Direct |
| Dec. 29, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (18,333) | 18,333 | Direct |
| Nov. 27, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (27,389) | 27,389 | Direct |
| Nov. 27, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (4,222) | 4,222 | Direct |
| Nov. 27, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (3,745) | 3,745 | Direct |
| Nov. 27, 2006 | CREX | Warrant to Purchase Common Stock→ Common Stock (18,333) | 18,333 | Direct |