Martyn Willsher

Insider

First SEC filing: May 4, 2021 · Latest: May 4, 2021

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Compensation Executive pay disclosed in company proxy statements.

Insider at

AMPY selling June 12, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 43 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

43 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 16, 2024	AMPY	M	20,715	—	—	125,718 Direct	-14.15%	Disposed	(price as of 2026-08-20)
March 16, 2024	AMPY	F	8,152	$6.05	$49,320	186,507 Direct	-4.19%	Disposed	-18.1% (price as of 2026-08-20)
March 16, 2024	AMPY	M	20,715	—	—	194,659 Direct	+11.91%	Acquired	(price as of 2026-08-20)
Feb. 1, 2024	AMPY	A	102,411	—	—	218,624 Direct	+88.12%	Acquired	(price as of 2026-08-20)
Feb. 1, 2024	AMPY	A	68,274	—	—	146,433 Direct	+87.35%	Acquired	(price as of 2026-08-20)
Feb. 1, 2024	AMPY	M	38,737	—	—	78,159 Direct	-33.14%	Disposed	(price as of 2026-08-20)
Feb. 1, 2024	AMPY	F	15,244	$6.12	$93,293	173,944 Direct	-8.06%	Disposed	-19.0% (price as of 2026-08-20)
Feb. 1, 2024	AMPY	M	38,737	—	—	189,188 Direct	+25.75%	Acquired	(price as of 2026-08-20)
Jan. 5, 2024	AMPY	M	31,073	—	—	116,213 Direct	-21.10%	Disposed	(price as of 2026-08-20)
Jan. 5, 2024	AMPY	F	21,879	$5.93	$129,742	150,451 Direct	-12.70%	Disposed	-16.4% (price as of 2026-08-20)
Jan. 5, 2024	AMPY	M	51,892	—	—	172,330 Direct	+43.09%	Acquired	(price as of 2026-08-20)
June 12, 2023	AMPY	S	26,599	$6.85	$182,203	120,438 Direct	-18.09%	Disposed	-27.7% (price as of 2026-08-20)
March 16, 2023	AMPY	M	20,715	—	—	116,896 Direct	-15.05%	Disposed	(price as of 2026-08-20)
March 16, 2023	AMPY	F	8,152	$6.76	$55,108	147,037 Direct	-5.25%	Disposed	-26.7% (price as of 2026-08-20)
March 16, 2023	AMPY	M	20,715	—	—	155,189 Direct	+15.40%	Acquired	(price as of 2026-08-20)
Feb. 1, 2023	AMPY	A	56,117	—	—	147,286 Direct	+61.55%	Acquired	(price as of 2026-08-20)
Feb. 1, 2023	AMPY	A	56,117	—	—	137,611 Direct	+68.86%	Acquired	(price as of 2026-08-20)
Feb. 1, 2023	AMPY	M	20,032	—	—	81,494 Direct	-19.73%	Disposed	(price as of 2026-08-20)
Feb. 1, 2023	AMPY	F	7,883	$8.66	$68,267	134,474 Direct	-5.54%	Disposed	-42.8% (price as of 2026-08-20)
Feb. 1, 2023	AMPY	M	20,032	—	—	142,357 Direct	+16.38%	Acquired	(price as of 2026-08-20)
Jan. 7, 2023	AMPY	M	31,072	—	—	135,478 Direct	+29.76%	Acquired	(price as of 2026-08-20)
Jan. 7, 2023	AMPY	F	13,153	$8.79	$115,615	122,325 Direct	-9.71%	Disposed	-43.6% (price as of 2026-08-20)
Jan. 7, 2023	AMPY	M	15,536	—	—	91,169 Direct	-14.56%	Disposed	(price as of 2026-08-20)
March 16, 2022	AMPY	F	5,045	$5.46	$27,546	104,406 Direct	-4.61%	Disposed	-9.2% (price as of 2026-08-20)
March 16, 2022	AMPY	M	20,715	—	—	109,451 Direct	+23.34%	Acquired	(price as of 2026-08-20)
Feb. 1, 2022	AMPY	A	60,096	—	—	228,946 Direct	+35.59%	Acquired	(price as of 2026-08-20)
Feb. 1, 2022	AMPY	A	60,096	—	—	168,850 Direct	+55.26%	Acquired	(price as of 2026-08-20)
Feb. 1, 2022	AMPY	M	15,536	—	—	108,754 Direct	-12.50%	Disposed	(price as of 2026-08-20)
Feb. 1, 2022	AMPY	F	4,607	$3.11	$14,328	88,736 Direct	-4.94%	Disposed	59.3% (price as of 2026-08-20)
Feb. 1, 2022	AMPY	M	15,536	—	—	93,343 Direct	+19.97%	Acquired	(price as of 2026-08-20)
Oct. 1, 2021	AMPY	M	3,529	—	—	77,807 Direct	+4.75%	Acquired	(price as of 2026-08-20)
April 30, 2021	AMPY	M	2,706	—	—	198,568 Direct	+1.38%	Acquired	(price as of 2026-08-20)
April 1, 2021	AMPY	A	62,145	—	—	62,145 Direct	—	Acquired	(price as of 2026-08-20)
April 1, 2021	AMPY	A	62,145	—	—	124,290 Direct	+100.00%	Acquired	(price as of 2026-08-20)
April 1, 2021	AMPY	A	124,290	—	—	195,862 Direct	+173.66%	Acquired	(price as of 2026-08-20)
Feb. 19, 2021	AMPY	A	47,090	—	—	71,572 Direct	+192.35%	Acquired	(price as of 2026-08-20)
Oct. 1, 2020	AMPY	M	3,529	—	—	24,482 Direct	+16.84%	Acquired	(price as of 2026-08-20)
May 4, 2020	AMPY	M	4,352	—	—	20,953 Direct	+26.22%	Acquired	(price as of 2026-08-20)
May 1, 2020	AMPY	M	2,705	—	—	16,601 Direct	+19.47%	Acquired	(price as of 2026-08-20)
Oct. 1, 2019	AMPY	M	3,529	—	—	13,896 Direct	+34.04%	Acquired	(price as of 2026-08-20)
Aug. 6, 2019	AMPY	A	13,995	—	—	13,995 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 6, 2019	AMPY	A	26,903	—	—	26,903 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 6, 2019	AMPY	A	5,753	—	—	5,753 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 6, 2019	AMPY	A	10,367	—	—	10,367 Direct	—	Acquired	(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.

Derivative holdings (Form 4 Table II)

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
March 16, 2024	AMPY	Restricted Stock Units	Common Stock	—	—	20,715	Disposed
Feb. 1, 2024	AMPY	Performance Stock Units	Common Stock	—	—	102,411	Acquired
Feb. 1, 2024	AMPY	Restricted Stock Units	Common Stock	—	—	68,274	Acquired
Feb. 1, 2024	AMPY	Restricted Stock Units	Common Stock	—	—	38,737	Disposed
Jan. 5, 2024	AMPY	Performance Stock Units	Common Stock	—	—	31,073	Disposed
March 16, 2023	AMPY	Restricted Stock Units	Common Stock	—	—	20,715	Disposed
Feb. 1, 2023	AMPY	Performance Stock Units	Common Stock	—	—	56,117	Acquired
Feb. 1, 2023	AMPY	Restricted Stock Units	Common Stock	—	—	56,117	Acquired
Feb. 1, 2023	AMPY	Restricted Stock Units	Common Stock	—	—	20,032	Disposed
Jan. 7, 2023	AMPY	Performance Stock Units	Common Stock	—	—	15,536	Disposed
Feb. 1, 2022	AMPY	Restricted Stock Units	Common Stock (60,096)	—	—	60,096	Acquired
Feb. 1, 2022	AMPY	Restricted Stock Units	Common Stock (60,096)	—	—	60,096	Acquired
Feb. 1, 2022	AMPY	Restricted Stock Units	Common Stock (15,536)	—	—	15,536	Disposed
April 1, 2021	AMPY	Restricted Stock Units	Common Stock (62,145)	—	—	62,145	Acquired
April 1, 2021	AMPY	Restricted Stock Units	Common Stock (62,145)	—	—	62,145	Acquired
Aug. 6, 2019	AMPY	Restricted Stock Units	Common Stock (13,995)	—	—	13,995	Acquired
Aug. 6, 2019	AMPY	Restricted Stock Units	Common Stock (26,903)	—	—	26,903	Acquired
Aug. 6, 2019	AMPY	Stock Option (Right to Buy)	Common Stock (5,753)	—	May 4, 2023	5,753	Acquired

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

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

AMPY

CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2024	$539,885	$27,040	$1,355,922	—	$540,800	—	$20,700	$2,484,347
2023	$517,692	$127,920	$1,344,002	—	$392,080	—	$19,800	$2,401,494
2022	$471,154	$313,500	$591,345	—	$186,500	—	$18,300	$1,580,799

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.