Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 24 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)
Jan. 9, 2026 LSTA A 30,456 · · 95,659 Direct +46.71% 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)
Jan. 9, 2025 LSTA A 15,789 · · 65,203 Direct +31.95% Acquired (price as of 2026-10-02)
June 20, 2024 AQST A 38,000 · · 38,000 Direct · Acquired (price as of 2026-10-02)
Jan. 9, 2024 LSTA A 19,480 · · 49,414 Direct +65.08% Acquired (price as of 2026-10-02)
June 21, 2023 AQST A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
Jan. 9, 2023 LSTA A 20,000 · · 29,934 Direct +201.33% Acquired (price as of 2026-10-02)
June 22, 2022 AQST A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
Jan. 10, 2022 LSTA A 65,430 · · 149,040 Direct +78.26% Acquired (price as of 2026-10-02)
June 15, 2021 AQST A 20,000 · · 20,000 Direct · Acquired (price as of 2026-10-02)
Jan. 11, 2021 LSTA A 37,735 · · 83,610 Direct +82.26% Acquired (price as of 2026-10-02)
June 16, 2020 AQST A 14,000 · · 14,000 Direct · Acquired (price as of 2026-10-02)
Jan. 13, 2020 LSTA A 18,292 $3.28 $59,998 45,875 Direct +66.32% Acquired -97.0% (price as of 2026-10-02)
June 13, 2019 AQST A 13,350 · · 13,350 Direct · Acquired (price as of 2026-10-02)
Jan. 14, 2019 LSTA A 12,121 $4.95 $59,999 27,583 Direct +78.39% Acquired -98.0% (price as of 2026-10-02)
Jan. 8, 2019 LSTA A 8,747 · · 15,462 Direct +130.26% Acquired (price as of 2026-10-02)
July 24, 2018 AQST A 26,700 · · 26,700 Direct · Acquired (price as of 2026-10-02)
Jan. 8, 2018 LSTA A 8,747 · · 8,747 Direct · Acquired (price as of 2026-10-02)
May 16, 2017 LSTA A 2,565 · · 6,715 Direct +61.81% Acquired (price as of 2026-10-02)
Jan. 9, 2017 LSTA A 2,750 · · 2,750 Direct · Acquired (price as of 2026-10-02)
Jan. 9, 2017 LSTA A 1,650 · · 4,150 Direct +66.00% Acquired (price as of 2026-10-02)
Oct. 10, 2016 LSTA A 4,150 · · 4,150 Direct · Acquired (price as of 2026-10-02)
Oct. 10, 2016 LSTA A 2,500 · · 2,500 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.

06
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
Jan. 8, 2018 LSTA Restricted Stock Units Common Stock (8,747) · Jan. 8, 2028 8,747 Acquired
Jan. 9, 2017 LSTA Options to Purchase Common Stock Common Stock (2,750) $3.54 Jan. 9, 2027 2,750 Acquired
Oct. 10, 2016 LSTA Stock Option Common Stock (4,150) $4.66 Oct. 10, 2026 4,150 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