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
Feb. 26, 2021 MRK A 3,437 $72.62 $249,595 10,283 Direct +50.20% Acquired 108.2% (price as of 2026-10-02)
May 5, 2020 MRK M 1,290 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
May 5, 2020 MRK F 458 $76.86 $35,202 6,846 Direct -6.27% Disposed 96.8% (price as of 2026-10-02)
May 5, 2020 MRK M 1,290 $76.86 $99,149 7,304 Direct +21.45% Acquired 96.8% (price as of 2026-10-02)
May 4, 2020 MRK M 692 · · 694 Direct -49.93% Disposed (price as of 2026-10-02)
May 4, 2020 MRK F 238 $77.67 $18,485 6,014 Direct -3.81% Disposed 94.7% (price as of 2026-10-02)
May 4, 2020 MRK M 692 $77.67 $53,748 6,252 Direct +12.45% Acquired 94.7% (price as of 2026-10-02)
May 3, 2020 MRK M 1,541 · · 3,084 Direct -33.32% Disposed (price as of 2026-10-02)
May 3, 2020 MRK F 529 $77.67 $41,087 5,560 Direct -8.69% Disposed 94.7% (price as of 2026-10-02)
May 3, 2020 MRK M 1,541 $77.67 $119,689 6,089 Direct +33.88% Acquired 94.7% (price as of 2026-10-02)
May 1, 2020 MRK A 2,704 · · 2,704 Direct · Acquired (price as of 2026-10-02)
May 1, 2020 MRK A 21,144 · · 21,144 Direct · Acquired (price as of 2026-10-02)
Feb. 28, 2020 MRK A 1,659 $76.56 $127,013 4,514 Direct +58.11% Acquired 97.5% (price as of 2026-10-02)
May 10, 2019 MRK M 1,509 $78.33 $118,200 0 Direct -100.00% Disposed 93.1% (price as of 2026-10-02)
May 10, 2019 MRK F 517 $78.33 $40,497 2,800 Direct -15.59% Disposed 93.1% (price as of 2026-10-02)
May 10, 2019 MRK M 1,509 · · 3,317 Direct +83.46% Acquired (price as of 2026-10-02)
May 4, 2019 MRK M 692 $80.00 $55,360 1,386 Direct -33.30% Disposed 89.0% (price as of 2026-10-02)
May 4, 2019 MRK F 238 $80.00 $19,040 1,808 Direct -11.63% Disposed 89.0% (price as of 2026-10-02)
May 4, 2019 MRK M 692 · · 2,046 Direct +51.11% Acquired (price as of 2026-10-02)
May 3, 2019 MRK A 4,625 · · 4,625 Direct · Acquired (price as of 2026-10-02)
May 3, 2019 MRK A 1,500 · · 1,500 Direct · Acquired (price as of 2026-10-02)
May 3, 2019 MRK A 11,291 · · 11,291 Direct · Acquired (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, 2020 MRK Restricted Stock Unit Common Stock (1,290) · May 5, 2020 1,290 Disposed
May 4, 2020 MRK Restricted Stock Unit Common Stock (692) · May 4, 2021 692 Disposed
May 3, 2020 MRK Restricted Stock Unit Common Stock (1,541) · May 3, 2022 1,541 Disposed
May 1, 2020 MRK Restricted Stock Unit Common Stock (2,704) · May 1, 2023 2,704 Acquired
May 1, 2020 MRK Stock Option (Right to Buy) Common Stock (21,144) $77.67 April 30, 2030 21,144 Acquired
May 10, 2019 MRK Restricted Stock Unit Common Stock (1,509) · May 10, 2019 1,509 Disposed
May 4, 2019 MRK Restricted Stock Unit Common Stock (692) · May 4, 2021 692 Disposed
May 3, 2019 MRK Restricted Stock Unit Common Stock · May 3, 2022 4,625 Acquired
May 3, 2019 MRK Restricted Stock Unit Common Stock (1,500) · May 3, 2022 1,500 Acquired
May 3, 2019 MRK Stock Option (right to buy) Common Stock (11,291) $80.00 May 2, 2029 11,291 Acquired

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

Initial ownership (Form 3) 8 holdings

07

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

DateTickerSecuritySharesOwnership
March 28, 2019 MRK Common Stock 1,345 Direct
March 28, 2019 MRK Restricted Stock Unit→ Common Stock (2,078) 2,078 Direct
March 28, 2019 MRK Restricted Stock Unit→ Common Stock (1,290) 1,290 Direct
March 28, 2019 MRK Restricted Stock Unit→ Common Stock (1,509) 1,509 Direct
March 28, 2019 MRK Stock Option (right to buy)→ Common Stock (8,676) 8,676 Direct
March 28, 2019 MRK Stock Option (right to buy)→ Common Stock (14,638) 14,638 Direct
March 28, 2019 MRK Stock Option (right to buy)→ Common Stock (1,004) 1,004 Direct
March 28, 2019 MRK Stock Option (right to buy)→ Common Stock (11,769) 11,769 Direct