Robert J. Vanderzanden serves as Executive at SPHERIX INC, where they oversee executive responsibilities. Since joining the company, Robert J. Vanderzanden has executed 10 insider transactions totaling $6.5K, demonstrating a bullish approach to their equity position. Their most recent transaction on Aug 26, 2022 involved receiving (via award) 8,000 shares valued at $48.0K.
Robert J. Vanderzanden currently holds 12,702 shares of SPHERIX INC (SPEX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert J. Vanderzanden has been a net buyer of SPEX stock. They have purchased $3.6K and sold $2.9K worth of shares.
Robert J. Vanderzanden's most recent insider trade was on Aug 26, 2022, when they sold 8,000 shares at $6.00 per share.
Get notified when new Form 4 filings are submitted
| $0.88 |
| Discretionary |
| Feb 16, 2018 | SPEX | $0 | Award | 20,000 | $N/A | Discretionary |
| May 31, 2017 | SPEX | $1.1K | Purchase | 1,000 | $1.05 | Discretionary |
| May 12, 2009 | SPEX | $10.0K | Award | 6,666 | $1.50 | Discretionary |
| May 13, 2008 | SPEX | $10.0K | Award | 9,615 | $1.04 | Discretionary |
| Aug 15, 2007 | SPEX | $10.0K | Award | 4,785 | $2.09 | Discretionary |
| Aug 23, 2006 | SPEX | $10.0K | Award | 7,752 | $1.29 | Discretionary |
| Apr 24, 2006 | SPEX | $2.6K | Purchase | 1,000 | $2.60 | Discretionary |
| Mar 28, 2006 | SPEX | $2.9K | Sale | 1,000 | $2.87 | Discretionary |