Insider at

04

Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 14 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.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 10, 2026 AQST A 50,500 · · 50,500 Direct · Acquired (price as of 2026-10-02)
June 11, 2025 AQST A 42,000 $3.41 $143,220 42,000 Direct · Acquired 33.4% (price as of 2026-10-02)
June 20, 2024 AQST A 38,000 · · 38,000 Direct · Acquired (price as of 2026-10-02)
June 21, 2023 AQST A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
June 22, 2022 AQST A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
June 15, 2021 AQST A 20,000 · · 20,000 Direct · Acquired (price as of 2026-10-02)
May 10, 2021 AQST G 37,500 · · 99,486 Direct -27.38% Disposed (price as of 2026-10-02)
March 12, 2021 AQST J 19,091 · · 136,986 Direct +16.19% Acquired (price as of 2026-10-02)
March 12, 2021 AQST J 11,544 · · 117,895 Direct +10.85% Acquired (price as of 2026-10-02)
March 12, 2021 AQST J 8,228 · · 106,351 Direct +8.39% Acquired (price as of 2026-10-02)
March 12, 2021 AQST J 23,038 · · 98,123 Direct +30.68% Acquired (price as of 2026-10-02)
June 16, 2020 AQST A 14,000 · · 14,000 Direct · Acquired (price as of 2026-10-02)
June 13, 2019 AQST A 13,350 · · 13,350 Direct · Acquired (price as of 2026-10-02)
July 24, 2018 AQST A 26,700 · · 26,700 Direct · Acquired (price as of 2026-10-02)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 10, 2026 AQST Stock Option (Right to Purchase) Common Stock (50,500) $3.99 June 10, 2036 50,500 Acquired
June 11, 2025 AQST Stock Option (Right to Purchase) Common Stock (42,000) $3.41 June 11, 2035 42,000 Acquired
June 20, 2024 AQST Stock Option (Right to Purchase) Common Stock (38,000) $2.50 June 20, 2034 38,000 Acquired
June 21, 2023 AQST Stock Option (Right to Purchase) Common Stock (25,000) $2.02 June 21, 2033 25,000 Acquired
June 22, 2022 AQST Stock Option (Right to Purchase) Common Stock (25,000) $0.71 June 22, 2032 25,000 Acquired
June 15, 2021 AQST Stock Option (Right to Purchase) Common Stock (20,000) $4.04 June 15, 2031 20,000 Acquired
June 16, 2020 AQST Stock Option (Right to Purchase) Common Stock (14,000) $5.30 June 16, 2030 14,000 Acquired
June 13, 2019 AQST Stock Option (Right to Purchase) Common Stock (13,350) $4.38 June 13, 2029 13,350 Acquired
July 24, 2018 AQST Stock Option (Right to Purchase) Common Stock (26,700) $15.00 July 24, 2028 26,700 Acquired

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

Initial ownership (Form 3) 1 holding

07

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

DateTickerSecuritySharesOwnership
July 24, 2018 AQST Common Stock [F1] 75,085 Direct