Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 22 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
May 29, 2026 MRK A 1,853 $118.72 $219,988 34,945 Direct +5.60% Acquired 17.5% (price as of 2026-10-05)
Feb. 11, 2026 LH M 897 · · 773 Direct -53.71% Disposed (price as of 2026-10-05)
Feb. 11, 2026 LH M 897 · · 2,571 Direct +53.58% Acquired (price as of 2026-10-05)
Feb. 10, 2026 LH A 733 · · 1,670 Direct +78.23% Acquired (price as of 2026-10-05)
May 30, 2025 MRK A 2,863 $76.84 $219,993 31,991 Direct +9.83% Acquired 81.6% (price as of 2026-10-05)
Feb. 11, 2025 LH A 897 · · 897 Direct · Acquired (price as of 2026-10-05)
Feb. 6, 2025 LH M 944 · · 0 Direct -100.00% Disposed (price as of 2026-10-05)
Feb. 6, 2025 LH M 944 · · 1,674 Direct +129.32% Acquired (price as of 2026-10-05)
June 6, 2024 LH M 717 · · 944 Direct -43.17% Disposed (price as of 2026-10-05)
June 6, 2024 LH M 717 · · 717 Direct · Acquired (price as of 2026-10-05)
May 31, 2024 MRK A 1,752 $125.54 $219,946 28,234 Direct +6.62% Acquired 11.2% (price as of 2026-10-05)
Feb. 6, 2024 LH A 944 · · 1,661 Direct +131.66% Acquired (price as of 2026-10-05)
June 6, 2023 LH A 642 · · 642 Direct · Acquired (price as of 2026-10-05)
May 26, 2023 MRK A 1,981 $111.07 $220,030 25,798 Direct +8.32% Acquired 25.6% (price as of 2026-10-05)
May 27, 2022 MRK A 2,364 $93.08 $220,041 23,152 Direct +11.37% Acquired 49.9% (price as of 2026-10-05)
May 28, 2021 MRK A 2,635 $75.89 $199,970 19,522 Direct +15.60% Acquired 92.7% (price as of 2026-10-05)
May 29, 2020 MRK A 2,478 $80.72 $200,024 16,362 Direct +17.85% Acquired 81.2% (price as of 2026-10-05)
May 31, 2019 MRK A 2,336 $79.21 $185,035 13,506 Direct +20.91% Acquired 84.6% (price as of 2026-10-05)
May 25, 2018 MRK A 3,131 $59.09 $185,011 10,857 Direct +40.53% Acquired 147.5% (price as of 2026-10-05)
May 26, 2017 MRK A 2,619 $64.92 $170,025 7,482 Direct +53.86% Acquired 125.3% (price as of 2026-10-05)
May 27, 2016 MRK A 3,010 $56.48 $170,005 4,720 Direct +176.02% Acquired 158.9% (price as of 2026-10-05)
Sept. 1, 2015 MRK A 1,666 $52.53 $87,515 1,666 Direct · Acquired 178.4% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 29, 2026 MRK Phantom Stock Common Stock (1,853) · · 1,853 Acquired
Feb. 11, 2026 LH Restricted Stock Unit Common Stock (897) · · 897 Disposed
Feb. 10, 2026 LH Restricted Stock Unit Common Stock (733) · · 733 Acquired
May 30, 2025 MRK Phantom Stock Common Stock (2,863) · · 2,863 Acquired
Feb. 11, 2025 LH Restricted Stock Unit Common Stock (897) · · 897 Acquired
Feb. 6, 2025 LH Restricted Stock Unit Common Stock (944) · · 944 Disposed
June 6, 2024 LH Restricted Stock Unit Common Stock (717) · · 717 Disposed
May 31, 2024 MRK Phantom Stock Common Stock (1,752) · · 1,752 Acquired
Feb. 6, 2024 LH Restricted Stock Unit Common Stock (944) · · 944 Acquired
June 6, 2023 LH Restricted Stock Unit Common Stock (642) · · 642 Acquired
May 26, 2023 MRK Phantom Stock Common Stock (1,981) · · 1,981 Acquired
May 27, 2022 MRK Phantom Stock Common Stock (2,364) · · 2,364 Acquired
May 28, 2021 MRK Phantom Stock Common Stock (2,635) · · 2,635 Acquired
May 29, 2020 MRK Phantom Stock Common Stock (2,478) · · 2,478 Acquired
May 31, 2019 MRK Phantom Stock Common Stock (2,336) · · 2,336 Acquired
May 25, 2018 MRK Phantom Stock Common Stock (3,131) · · 3,131 Acquired
May 26, 2017 MRK Phantom Stock Common Stock (2,619) · · 2,619 Acquired
May 27, 2016 MRK Phantom Stock Common Stock (3,010) · · 3,010 Acquired
Sept. 1, 2015 MRK Phantom Stock Common Stock (1,666) · · 1,666 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
June 7, 2023 LH Common Stock 13 Direct
Sept. 2, 2015 MRK Common Stock 100 Direct