John B. Ziegler serves as Executive at QUEST DIAGNOSTICS INC, where they oversee executive responsibilities. Since joining the company, John B. Ziegler has executed 67 insider transactions totaling $9.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 8, 2011 involved exercising options for 262 shares valued at $10.8K.
John B. Ziegler currently holds 16,557 shares of QUEST DIAGNOSTICS INC (DGX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John B. Ziegler has been a net seller of DGX stock. They have purchased $0 and sold $9.4M worth of shares.
John B. Ziegler's most recent insider trade was on Feb 8, 2011, when they sold 262 shares at $41.35 per share.
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| $N/A |
| Discretionary |
| May 14, 2009 | DGX | $0 | Award | 1,667 | $N/A | Discretionary |
| Feb 6, 2009 | DGX | $590.6K | Option Exercise | 20,000 | $29.53 | Discretionary |
| Feb 6, 2009 | DGX | $10.9K | Option Exercise | 362 | $30.03 | Discretionary |
| Feb 6, 2009 | DGX | $1.1M | Sale | 20,966 | $52.01 | Discretionary |
| Feb 6, 2009 | DGX | $10.8K | Option Exercise | 312 | $34.72 | Discretionary |
| Feb 6, 2009 | DGX | $10.9K | Option Exercise | 292 | $37.26 | Discretionary |
| May 16, 2008 | DGX | $0 | Award | 1,667 | $N/A | Discretionary |
| May 9, 2007 | DGX | $13.0K | Option Exercise | 732 | $17.82 | Discretionary |
| May 9, 2007 | DGX | $13.1K | Option Exercise | 440 | $29.72 | Discretionary |
| May 9, 2007 | DGX | $10.8K | Option Exercise | 484 | $22.38 | Discretionary |
| May 9, 2007 | DGX | $4.2K | Option Exercise | 436 | $9.58 | Discretionary |
| May 8, 2007 | DGX | $0 | Award | 1,667 | $N/A | Discretionary |
| May 17, 2006 | DGX | $150.3K | Option Exercise | 10,000 | $15.03 | Discretionary |
| May 17, 2006 | DGX | $316.4K | Sale | 5,390 | $58.70 | Discretionary |
| May 4, 2006 | DGX | $0 | Award | 3,334 | $N/A | Discretionary |