| 2012-02-24 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 31,122 0.0197% | $57.45 | $1.79M | +3.14% | |
| 2012-02-03 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 13,333 0.008% | $55.65 | $741,981 | +0.6% | |
| 2011-10-28 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 19,259 0.011% | $52.23 | $1.01M | +1.5% | |
| 2011-06-16 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 3,815 0.0024% | $60.20 | $229,663 | -4.15% | |
| 2011-06-14 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 4,668 0.003% | $59.70 | $278,680 | -3.14% | |
| 2011-06-13 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 10,615 0.0067% | $59.20 | $628,408 | -2.4% | |
| 2011-05-18 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 21,112 0.0133% | $58.10 | $1.23M | -0.96% | |
| 2011-05-17 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 1,809 0.0011% | $57.93 | $104,795 | -0.21% | |
| 2011-05-12 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 42,365 0.0267% | $57.44 | $2.43M | +0.17% | |
| 2011-02-16 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 26,666 0.0166% | $57.40 | $1.53M | -0.34% | |
| 2009-11-06 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 21,800 0.0121% | $57.70 | $1.26M | -4.71% | |
| 2009-11-04 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 20,000 0.0079% | $40.43 | $808,550 | -2.45% | |
| 2009-08-21 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 4,100 0.0022% | $55.00 | $225,500 | +2.18% | |
| 2009-08-20 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 27,717 0.0121% | $44.27 | $1.23M | +2.73% | |
| 2009-08-17 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 5,514 0.003% | $54.80 | $302,167 | +3.19% | |
| 2009-07-28 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 14,300 0.0081% | $56.20 | $803,660 | +4.34% | |
| 2009-07-27 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 9,200 0.0023% | $26.07 | $239,890 | +0.98% | |
| 2009-07-23 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 4,274 0.0023% | $56.00 | $239,344 | +1.21% | |
| 2009-02-24 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 10,000 0.0053% | $51.20 | $512,000 | +6.26% | |
| 2009-02-06 | Sale | Quest Diagnostics Incorporated DGX | SVP-Oncology & Neurology Srvcs | 5,000 0.0026% | $52.25 | $261,250 | +3.57% |