SEC Insider Transactions from KUPPUSAMY KARTHIK.

Last updated: 2026-03-14 11:56 UTC | Total transactions: 43

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.

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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%