Michael K Stern

Insider

First SEC filing: June 1, 2022 · Latest: June 1, 2022

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 3 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

3 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 14, 2023	AQB	A	2,500	—	—	2,500 Direct	—	Acquired	(price as of 2026-08-20)
June 14, 2023	AQB	A	55,555	—	—	90,555 Direct	+158.73%	Acquired	(price as of 2026-08-20)
Dec. 16, 2022	AQB	P	20,000	$0.74	$14,800	20,000 Direct	—	Acquired	-90.9% (price as of 2026-08-20)
Nov. 10, 2022	AQB	A	2,500	—	—	2,500 Direct	—	Acquired	(price as of 2026-08-20)
June 13, 2022	AQB	P	15,000	$1.60	$24,000	15,000 Direct	—	Acquired	-95.8% (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
June 14, 2023	AQB	Options to Purchase Common Stock	Common Stock (2,500)	$0.36	May 25, 2033	2,500	Acquired
Nov. 10, 2022	AQB	Options to Purchase	Common Stock (2,500)	$1.49	Nov. 10, 2032	2,500	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 1, 2022	AQB	Common Stock	0	Direct