Robert J Vander Zanden insider trades: Spherix (SPEX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Robert reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 31, 2017 | SPEX | ↑ Buy | 1,000 | $1.05 | $1K | Direct | May 31, 2017 (0d) |
| Apr 24, 2006 | SPEX | ↑ Buy | 1,000 | $2.60 | $3K | Direct | Apr 25, 2006 (1d) |
| Mar 28, 2006 | SPEX | ↓ Sell | 1,000 | $2.87 | $3K | Direct | Apr 3, 2006 (6d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Robert J Vander Zanden's insider trades
Robert J Vander Zanden is a director at Spherix (SPEX). Since Mar 28, 2006, Robert has reported 2 open-market purchases worth $4K and 1 sale worth $3K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (19 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SPEX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.

