Summy Amy B. 4

What Happened Amy B. Summy, EVP and Chief Marketing Officer of LabCorp (LH), received 3,994 shares on March 26, 2026 pursuant to a performance award (reported as an acquisition at $0.00). On the same date 1,836 of those shares were withheld to satisfy tax withholding obligations at $268.38 per share, a withholding value of approximately $492,746. Net shares delivered to Summy after withholding were 2,158.

Key Details

• Transaction date: March 26, 2026. Filing date: March 30, 2026 (filed within normal timing requirements).
• Award: 3,994 shares granted/issued (reported at $0.00 acquisition price).
• Tax withholding: 1,836 shares disposed at $268.38 per share for ~$492,746.
• Shares owned after transaction: not specified in the provided filing.
• Footnotes: F1 — shares were from a performance award granted Feb 7, 2023 covering performance through Dec 31, 2025; F2 — shares withheld to satisfy tax withholding.
• Transaction codes: A = Award/Grant (acquisition); F = Tax withholding (disposition).

Context This was a compensation-related vesting of a multi-year performance award, not an open-market purchase or voluntary sale. Withholding shares to cover taxes is a routine administrative step and does not by itself indicate a manager buying or selling stock for investment reasons. Purchases by insiders are generally more indicative of positive sentiment; award vesting and withholding are standard.