Marilyn J. Purchase

Insider

First SEC filing: June 24, 2014 · Latest: June 24, 2014

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 7 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

7 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
April 9, 2015	AMPH	M	28,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 9, 2015	AMPH	S 10b5-1	28,000	$15.79	$442,120	44,902 Direct	-38.41%	Disposed	35.4% (price as of 2026-08-20)
April 9, 2015	AMPH	M	28,000	$14.80	$414,400	72,902 Direct	+62.36%	Acquired	44.5% (price as of 2026-08-20)
March 27, 2015	AMPH	F	1,639	$15.43	$25,290	43,263 Direct	-3.65%	Disposed	38.6% (price as of 2026-08-20)
March 26, 2015	AMPH	A	42,054	—	—	42,054 Direct	—	Acquired	(price as of 2026-08-20)
March 26, 2015	AMPH	A	14,046	—	—	44,902 Direct	+45.52%	Acquired	(price as of 2026-08-20)
Oct. 3, 2014	AMPH	F	519	$11.41	$5,922	30,856 Direct	-1.65%	Disposed	87.4% (price as of 2026-08-20)
July 7, 2014	AMPH	F	1,239	$8.75	$10,841	31,375 Direct	-3.80%	Disposed	144.3% (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
April 9, 2015	AMPH	Employee Stock Option (right to buy)	Common Stock (28,000)	$14.80	May 15, 2015	28,000	Disposed
March 26, 2015	AMPH	Employee Stock Option (right to buy)	Common Stock (42,054)	$14.95	March 26, 2025	42,054	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
June 24, 2014	AMPH	Common Stock	—	Direct
June 24, 2014	AMPH	Common Stock	—	Direct
June 24, 2014	AMPH	Common Stock	—	Direct
June 24, 2014	AMPH	Common Stock	—	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (15,000)	15,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (28,000)	28,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (15,000)	15,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (25,000)	25,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (25,000)	25,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (25,000)	25,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (30,000)	30,000	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (15,789)	15,789	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (47,877)	47,877	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (8,315)	8,315	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (32,081)	32,081	Direct
June 24, 2014	AMPH	Stock Option (Right to Buy)→ Common Stock (25,445)	25,445	Direct