Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 26 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 26, 2017 MRK A 2,619 $64.92 $170,025 33,755 Direct +8.41% Acquired 132.9% (price as of 2026-10-02)
May 27, 2016 MRK A 3,010 $56.48 $170,005 30,213 Direct +11.06% Acquired 167.8% (price as of 2026-10-02)
May 29, 2015 MRK A 2,463 $60.89 $149,972 26,298 Direct +10.33% Acquired 148.4% (price as of 2026-10-02)
Aug. 1, 2014 MRK M 5,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Aug. 1, 2014 MRK M 5,000 $35.19 $175,950 5,500 Direct +1000.00% Acquired 329.7% (price as of 2026-10-02)
May 30, 2014 MRK A 2,592 $57.86 $149,973 23,130 Direct +12.62% Acquired 161.4% (price as of 2026-10-02)
Nov. 4, 2013 MRK M 3,334 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Nov. 4, 2013 MRK M 3,334 $24.30 $81,016 3,834 Direct +666.80% Acquired 522.3% (price as of 2026-10-02)
May 31, 2013 MRK A 3,212 $46.70 $150,000 19,837 Direct +19.32% Acquired 223.8% (price as of 2026-10-02)
May 25, 2012 MRK A 3,995 $37.55 $150,012 15,996 Direct +33.29% Acquired 302.7% (price as of 2026-10-02)
May 27, 2011 MRK A 4,143 $36.21 $150,018 11,484 Direct +56.44% Acquired 317.6% (price as of 2026-10-02)
March 31, 2011 MRK A 833 $33.01 $27,497 7,268 Direct +12.94% Acquired 358.1% (price as of 2026-10-02)
Dec. 31, 2010 MRK A 617 $36.04 $22,237 6,376 Direct +10.71% Acquired 319.6% (price as of 2026-10-02)
Nov. 17, 2010 MRK M 1,666 $24.30 $40,484 2,666 Indirect +166.60% Acquired 522.3% (price as of 2026-10-02)
Nov. 17, 2010 MRK M 1,666 · · 3,334 Direct -33.32% Disposed (price as of 2026-10-02)
Nov. 17, 2010 MRK M 1,666 $24.30 $40,484 3,166 Direct +111.07% Acquired 522.3% (price as of 2026-10-02)
Sept. 30, 2010 MRK A 686 $36.81 $25,252 5,707 Direct +13.66% Acquired 310.8% (price as of 2026-10-02)
Aug. 4, 2010 MRK A 5,000 · · 5,000 Direct · Acquired (price as of 2026-10-02)
June 30, 2010 MRK A 636 $34.97 $22,241 4,975 Direct +14.66% Acquired 332.4% (price as of 2026-10-02)
May 28, 2010 MRK A 1,633 $33.69 $55,016 4,339 Direct +60.35% Acquired 348.9% (price as of 2026-10-02)
Nov. 3, 2009 MRK A 500 · · 500 Direct · Acquired (price as of 2026-10-02)
Nov. 3, 2009 MRK A 1,000 · · 1,000 Indirect · Acquired (price as of 2026-10-02)
Nov. 3, 2009 MRK J 1,000 · · 1,000 Indirect · Acquired (price as of 2026-10-02)
Nov. 3, 2009 MRK A 5,000 · · 5,000 Direct · Acquired (price as of 2026-10-02)
Nov. 3, 2009 MRK A 2,652 · · 2,652 Direct · Acquired (price as of 2026-10-02)
Nov. 3, 2009 MRK A 1,500 · · 1,500 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 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
May 29, 2015 MRK Phantom Stock Common Stock (2,463) · · 2,463 Acquired
Aug. 1, 2014 MRK Stock Option (right to buy) Common Stock (5,000) $35.19 Aug. 3, 2020 5,000 Disposed
May 30, 2014 MRK Phantom Stock Common Stock (2,592) · · 2,592 Acquired
Nov. 4, 2013 MRK Stock Option (right to buy) Common Stock (3,334) $24.30 April 30, 2019 3,334 Disposed
May 31, 2013 MRK Phantom Stock Common Stock (3,212) · · 3,212 Acquired
May 25, 2012 MRK Phantom Stock Common Stock (3,995) · · 3,995 Acquired
May 27, 2011 MRK Phantom Stock Common Stock (4,143) · · 4,143 Acquired
March 31, 2011 MRK Phantom Stock Common Stock (833) · · 833 Acquired
Dec. 31, 2010 MRK Phantom Stock Common Stock (617) · · 617 Acquired
Nov. 17, 2010 MRK Stock Option (right to buy) Common Stock (1,666) $24.30 April 30, 2019 1,666 Disposed
Sept. 30, 2010 MRK Phantom Stock Common Stock (686) · · 686 Acquired
Aug. 4, 2010 MRK Stock Option (right to buy) Common Stock (5,000) $35.19 Aug. 3, 2020 5,000 Acquired
June 30, 2010 MRK Phantom Stock Common Stock (636) · · 636 Acquired
May 28, 2010 MRK Phantom Stock Common Stock (1,633) · · 1,633 Acquired
Nov. 3, 2009 MRK Stock Option (right to buy) Common Stock (5,000) $24.30 April 30, 2019 5,000 Acquired
Nov. 3, 2009 MRK Phantom Stock Common Stock (2,652) · · 2,652 Acquired

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