Insider at

04

Insider transactions

05
0 buys (P) 2 sells (S) Net: $-765,952 + 46 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

46 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 4, 2026 MRK S 2,400 $119.68 $287,232 8,205 Direct -22.63% Disposed 20.6% (price as of 2026-10-02)
Feb. 4, 2026 MRK S 4,000 $119.68 $478,720 10,605 Direct -27.39% Disposed 20.6% (price as of 2026-10-02)
April 25, 2025 MRK S 4,262 $82.76 $352,723 7,778 Direct -35.40% Disposed 74.4% (price as of 2026-10-02)

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 5, 2026 MRK Stock Option (Right to Buy) Common Stock (5,045) $113.15 May 4, 2036 5,045 Acquired
May 5, 2026 MRK Restricted Stock Unit Common Stock (2,298) · May 5, 2029 2,298 Acquired
May 2, 2026 MRK Restricted Stock Unit Common Stock (383) · May 2, 2026 383 Disposed
April 30, 2026 MRK Restricted Stock Unit Common Stock (464) · April 30, 2027 464 Disposed
April 29, 2026 MRK Restricted Stock Unit Common Stock (944) · April 29, 2028 944 Disposed
Feb. 4, 2026 MRK Stock Option (Right to Buy) Common Stock (4,000) $62.07 May 4, 2027 4,000 Disposed
May 3, 2025 MRK Restricted Stock Unit Common Stock (1,532) · May 3, 2025 1,532 Disposed
May 3, 2025 MRK Restricted Stock Unit Common Stock (518) · May 3, 2025 518 Disposed
May 2, 2025 MRK Restricted Stock Unit Common Stock (381) · May 2, 2026 381 Disposed
April 30, 2025 MRK Restricted Stock Unit Common Stock (464) · April 30, 2027 464 Disposed
April 29, 2025 MRK Stock Option (Right to Buy) Common Stock (6,448) $84.71 April 28, 2035 6,448 Acquired
April 29, 2025 MRK Restricted Stock Unit Common Stock (2,833) · April 29, 2028 2,833 Acquired
April 25, 2025 MRK Stock Option (Right to Buy) Common Stock (5,000) $58.08 April 30, 2025 5,000 Disposed
May 4, 2024 MRK Restricted Stock Unit Common Stock (612) · May 4, 2024 612 Disposed
May 3, 2024 MRK Restricted Stock Unit Common Stock (1,530) · May 3, 2025 1,530 Disposed
May 3, 2024 MRK Restricted Stock Unit Common Stock (516) · May 3, 2025 516 Disposed
May 2, 2024 MRK Restricted Stock Unit Common Stock (381) · May 2, 2026 381 Disposed
April 30, 2024 MRK Stock Option (Right to Buy) Common Stock (7,031) $129.22 April 29, 2034 7,031 Acquired
April 30, 2024 MRK Restricted Stock Unit Common Stock (1,393) · April 30, 2027 1,393 Acquired

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

Initial ownership (Form 3) 13 holdings

07

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

DateTickerSecuritySharesOwnership
Dec. 13, 2023 MRK Common Stock 6 Direct
Dec. 13, 2023 MRK Restricted Stock Unit→ Common Stock (1,145) 1,145 Direct
Dec. 13, 2023 MRK Restricted Stock Unit→ Common Stock (1,034) 1,034 Direct
Dec. 13, 2023 MRK Restricted Stock Unit→ Common Stock (3,062) 3,062 Direct
Dec. 13, 2023 MRK Restricted Stock Unit→ Common Stock (612) 612 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (5,000) 5,000 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (12,130) 12,130 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (12,447) 12,447 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (9,600) 9,600 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (13,542) 13,542 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (14,198) 14,198 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (8,738) 8,738 Direct
Dec. 13, 2023 MRK Stock Option (Right to Buy)→ Common Stock (6,224) 6,224 Direct