Maria G Gray

Insider

First SEC filing: July 8, 2022 · Latest: July 8, 2022

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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

5 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 23, 2026	ALTO	A	23,605	—	—	179,229 Direct	+15.17%	Acquired	(price as of 2026-08-20)
July 9, 2025	ALTO	A	36,666	—	—	155,624 Direct	+30.82%	Acquired	(price as of 2026-08-20)
June 20, 2024	ALTO	A	36,666	—	—	118,958 Direct	+44.56%	Acquired	(price as of 2026-08-20)
June 22, 2023	ALTO	A	55,000	—	—	82,292 Direct	+201.52%	Acquired	(price as of 2026-08-20)
Dec. 16, 2022	ALTO	P	5,000	$2.73	$13,650	27,292 Direct	+22.43%	Acquired	54.9% (price as of 2026-08-20)
June 23, 2022	ALTO	A	20,109	—	—	22,292 Direct	+921.16%	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.

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

Date	Ticker	Security	Shares	Ownership
July 8, 2022	ALTO	Common Stock	2,183	Direct