Daniel A Nichols

Insider

First SEC filing: Nov. 18, 2003 · Latest: Nov. 18, 2003

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 5 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.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 17, 2003	MRK		None	—	—	—	—	—	(price as of 2026-08-20)
Oct. 27, 2003	MRK	A	10,000	—	—	50,800 Direct	+24.51%	Acquired	(price as of 2026-08-20)
April 15, 2003	MRK	G	30,000	—	—	4,500 Direct	-86.96%	Disposed	(price as of 2026-08-20)
April 15, 2003	MRK	G	24,600	—	—	24,600 Indirect	—	Acquired	(price as of 2026-08-20)
April 15, 2003	MRK	G	24,600	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Oct. 27, 2003	MRK	Deferred Stock Unit Award	Common Shares (10,000)	—	—	10,000	Acquired
April 15, 2003	MRK	Option (right to buy)	Common Shares (30,000)	$17.85	Feb. 23, 2013	30,000	Disposed
April 15, 2003	MRK	Option (right to buy)	Common Shares (24,600)	$17.85	Feb. 23, 2013	24,600	Acquired
April 15, 2003	MRK	Option (right to buy)	Common Shares (24,600)	$17.85	Feb. 23, 2013	24,600	Disposed

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