Kuppussamy Karthik, SVP of Clinical Solutions at Quest Diagnostics ($DGX), sold shares on the open market five times over the past year, totaling $2.73 million. His most recent sale occurred on March 4, 2026. These sales rank 2,886th among 11,678 insiders by value, below the average of $8.59 million per seller and 6.4 transactions. Karthik made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 4, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 2628 | $204.86 | 15,457.0000 | 111,000,000 | 14.53% | 0.00% |
| March 4, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 6200 | $204.86 | 18,085.0000 | 111,000,000 | 52.17% | 0.01% |
| March 2, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 205 | $204.86 | 11,885.0000 | 111,000,000 | 1.70% | 0.00% |
| Jan. 28, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | Common Stock | 16 | $183.52 | 12,078.0000 | 111,000,000 | 0.13% | 0.00% |
| Feb. 18, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 259 | $206.99 | 9,927.0000 | 111,000,000 | 2.54% | 0.00% |
| Feb. 18, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 252 | $210.01 | 10,186.0000 | 111,000,000 | 2.41% | 0.00% |
| Feb. 18, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 2135 | $0.00 | 12,062.0000 | 111,000,000 | 21.51% | 0.00% |
| Feb. 18, 2026 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Non-Qualifed Stock Option (right to buy) | 9853 | $0.00 | 9,853.0000 | 111,000,000 | 9999.99% | 0.01% |
| Oct. 21, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 15 | $189.08 | 10,372.0000 | 111,000,000 | 0.14% | 0.00% |
| Aug. 13, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 123 | $175.91 | 10,324.0000 | 112,000,000 | 1.18% | 0.00% |
| July 31, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 2210 | $170.00 | 10,437.0000 | 112,000,000 | 17.47% | 0.00% |
| July 30, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | M | Common Stock | 3045 | $86.63 | 15,692.0000 | 112,000,000 | 24.08% | 0.00% |
| July 30, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 3045 | $167.40 | 12,647.0000 | 112,000,000 | 19.40% | 0.00% |
| July 30, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | M | Common Stock | 5224 | $112.17 | 17,871.0000 | 112,000,000 | 41.31% | 0.00% |
| July 30, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 5224 | $167.40 | 12,647.0000 | 112,000,000 | 29.23% | 0.00% |
| July 30, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | M | Non-Qualifed Stock Option (right to buy) | 3045 | $86.63 | 0.0000 | 112,000,000 | 100.00% | 0.00% |
| July 30, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | M | Non-Qualifed Stock Option (right to buy) | 5224 | $112.17 | 0.0000 | 112,000,000 | 100.00% | 0.00% |
| July 21, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | Common Stock | 27 | $167.50 | 12,647.0000 | 112,000,000 | 0.21% | 0.00% |
| April 21, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | Common Stock | 27 | $164.42 | 12,590.0000 | 111,000,000 | 0.21% | 0.00% |
| April 2, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 2555 | $170.00 | 12,546.0000 | 111,000,000 | 16.92% | 0.00% |
| March 4, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 1879 | $173.74 | 15,071.0000 | 111,000,000 | 11.09% | 0.00% |
| March 3, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 992 | $173.74 | 12,516.0000 | 111,000,000 | 7.34% | 0.00% |
| March 4, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 4434 | $173.74 | 16,950.0000 | 111,000,000 | 35.43% | 0.00% |
| Feb. 26, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 233 | $171.75 | 13,495.0000 | 111,000,000 | 1.70% | 0.00% |
| Feb. 19, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 287 | $169.71 | 13,728.0000 | 111,000,000 | 2.05% | 0.00% |
| Feb. 12, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Non-Qualifed Stock Option (right to buy) | 8702 | $0.00 | 8,702.0000 | 111,000,000 | 9999.99% | 0.01% |
| Feb. 12, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 2269 | $0.00 | 14,012.0000 | 111,000,000 | 19.32% | 0.00% |
| Jan. 29, 2025 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | Common Stock | 12 | $158.03 | 11,723.0000 | 111,000,000 | 0.10% | 0.00% |
| Oct. 28, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 1775 | $156.92 | 11,656.0000 | 112,000,000 | 13.22% | 0.00% |
| Oct. 21, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | Common Stock | 21 | $149.37 | 13,432.0000 | 112,000,000 | 0.16% | 0.00% |
| Aug. 28, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 1990 | $153.26 | 13,373.0000 | 111,000,000 | 12.95% | 0.00% |
| Aug. 14, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 74 | $149.46 | 15,364.0000 | 111,000,000 | 0.48% | 0.00% |
| July 22, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | Common Stock | 31 | $146.97 | 15,426.0000 | 111,000,000 | 0.20% | 0.00% |
| April 29, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | S | Common Stock | 1760 | $140.00 | 15,344.0000 | 111,000,000 | 10.29% | 0.00% |
| April 22, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 45 | $126.25 | 17,104.0000 | 111,000,000 | 0.26% | 0.00% |
| Feb. 28, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 205 | $126.36 | 17,063.0000 | 111,000,000 | 1.19% | 0.00% |
| Feb. 28, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 68 | $126.36 | 16,995.0000 | 111,000,000 | 0.40% | 0.00% |
| Feb. 23, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 619 | $125.02 | 17,268.0000 | 111,000,000 | 3.46% | 0.00% |
| Feb. 23, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 2039 | $125.02 | 17,887.0000 | 111,000,000 | 12.87% | 0.00% |
| Feb. 21, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | F | Common Stock | 102 | $125.02 | 15,848.0000 | 111,000,000 | 0.64% | 0.00% |
| Feb. 14, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Non-Qualifed Stock Option (right to buy) | 11007 | $0.00 | 11,007.0000 | 111,000,000 | 9999.99% | 0.01% |
| Feb. 14, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 2641 | $0.00 | 15,945.0000 | 111,000,000 | 19.85% | 0.00% |
| Jan. 31, 2024 | QUEST DIAGNOSTICS INC | $DGX | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | A | Common Stock | 29 | $129.33 | 13,298.0000 | 111,000,000 | 0.22% | 0.00% |