Daniel Barber
Insider
First SEC filing: July 24, 2018 · Latest: June 16, 2026
Insider at
Insider transactions
0 buys (P)
7 sells (S)
Net: $-1,220,735
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 15, 2026 | AQST | S 10b5-1 | 25,000 | $4.82 | $120,500 | 652,317 Direct | -3.69% | Disposed | -5.6% (price as of 2026-10-02) |
| Sept. 8, 2026 | AQST | X | 91,743 | $0.96 | $88,073 | 677,317 Direct | +15.67% | Acquired | 374.0% (price as of 2026-10-02) |
| Sept. 8, 2026 | AQST | X | 91,743 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 17, 2026 | AQST | S 10b5-1 | 25,000 | $4.29 | $107,250 | 585,574 Direct | -4.09% | Disposed | 6.1% (price as of 2026-10-02) |
| July 16, 2026 | AQST | S | 20,369 | $4.00 | $81,476 | 610,574 Direct | -3.23% | Disposed | 13.7% (price as of 2026-10-02) |
| July 15, 2026 | AQST | S | 4,631 | $4.03 | $18,663 | 630,943 Direct | -0.73% | Disposed | 12.9% (price as of 2026-10-02) |
| June 15, 2026 | AQST | S | 25,000 | $4.16 | $104,000 | 635,574 Direct | -3.78% | Disposed | 9.4% (price as of 2026-10-02) |
| May 15, 2026 | AQST | S | 8,257 | $4.29 | $35,423 | 660,574 Direct | -1.23% | Disposed | 6.1% (price as of 2026-10-02) |
| May 5, 2026 | AQST | F | 335,922 | $4.18 | $1,404,154 | 668,831 Direct | -33.43% | Disposed | 8.9% (price as of 2026-10-02) |
| March 10, 2026 | AQST | S | 180,677 | $4.17 | $753,423 | 1,004,753 Direct | -15.24% | Disposed | 9.1% (price as of 2026-10-02) |
| March 9, 2026 | AQST | A | 523,000 | $4.29 | $2,243,670 | 523,000 Direct | · | Acquired | 6.1% (price as of 2026-10-02) |
| March 9, 2026 | AQST | A | 262,000 | · | · | 1,185,430 Direct | +28.37% | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2025 | AQST | S 10b5-1 | 91,343 | $6.03 | $550,798 | 923,430 Direct | -9.00% | Disposed | -24.5% (price as of 2026-10-02) |
| Sept. 19, 2025 | AQST | S 10b5-1 | 400 | $6.00 | $2,400 | 1,014,773 Direct | -0.04% | Disposed | -24.2% (price as of 2026-10-02) |
| March 9, 2025 | AQST | F | 53,998 | $2.65 | $143,095 | 1,015,173 Direct | -5.05% | Disposed | 71.7% (price as of 2026-10-02) |
| March 7, 2025 | AQST | A | 293,100 | · | · | 293,100 Direct | · | Acquired | (price as of 2026-10-02) |
| March 7, 2025 | AQST | A | 408,000 | · | · | 408,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 7, 2025 | AQST | F | 29,307 | $2.65 | $77,664 | 1,069,171 Direct | -2.67% | Disposed | 71.7% (price as of 2026-10-02) |
| March 7, 2025 | AQST | A | 272,000 | · | · | 1,098,478 Direct | +32.91% | Acquired | (price as of 2026-10-02) |
| March 9, 2024 | AQST | F | 56,824 | $4.88 | $277,301 | 826,478 Direct | -6.43% | Disposed | -6.8% (price as of 2026-10-02) |
| March 9, 2024 | AQST | F | 37,938 | $4.88 | $185,137 | 845,364 Direct | -4.30% | Disposed | -6.8% (price as of 2026-10-02) |
| March 7, 2024 | AQST | A | 363,900 | · | · | 363,900 Direct | · | Acquired | (price as of 2026-10-02) |
| March 7, 2024 | AQST | A | 242,600 | · | · | 883,302 Direct | +37.86% | Acquired | (price as of 2026-10-02) |
| Aug. 9, 2023 | AQST | A | 223,500 | · | · | 223,500 Direct | · | Acquired | (price as of 2026-10-02) |
| May 5, 2023 | AQST | A | 223,500 | · | · | 223,500 Direct | · | Acquired | (price as of 2026-10-02) |
| March 9, 2023 | AQST | A | 447,000 | · | · | 640,702 Direct | +230.77% | Acquired | (price as of 2026-10-02) |
| Aug. 5, 2022 | AQST | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 8, 2022 | AQST | P | 91,743 | $0.96 | $88,073 | 193,702 Direct | +89.98% | Acquired | 374.0% (price as of 2026-10-02) |
| June 8, 2022 | AQST | P | 91,743 | $0.13 | $11,927 | 91,743 Direct | · | Acquired | 3400.0% (price as of 2026-10-02) |
| March 10, 2022 | AQST | A | 225,000 | · | · | 225,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2021 | AQST | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 16, 2020 | AQST | A | 110,000 | · | · | 110,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 27, 2019 | AQST | P | 2,000 | $3.99 | $7,980 | 101,959 Direct | +2.00% | Acquired | 14.0% (price as of 2026-10-02) |
| May 9, 2019 | AQST | A | 50,000 | · | · | 50,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 28, 2019 | AQST | A | 70,000 | · | · | 70,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 10, 2018 | AQST | P | 1,000 | $8.00 | $8,000 | 99,959 Direct | +1.01% | Acquired | -43.1% (price as of 2026-10-02) |
| July 24, 2018 | AQST | A | 96,507 | · | · | 96,507 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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Sept. 8, 2026 | AQST | Warrant (Right to Buy) | Common Stock | $0.96 | June 8, 2027 | 91,743 | Disposed |
| March 9, 2026 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $4.29 | March 9, 2036 | 523,000 | Acquired |
| March 7, 2025 | AQST | Performance Stock Units [F1] | Common Stock | · | March 7, 2028 | 293,100 | Acquired |
| March 7, 2025 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $2.65 | March 7, 2025 | 408,000 | Acquired |
| March 7, 2024 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $5.68 | March 7, 2034 | 363,900 | Acquired |
| Aug. 9, 2023 | AQST | Performance Stock Units | Common Stock | · | May 5, 2026 | 223,500 | Acquired |
| May 5, 2023 | AQST | Performance Stock Units | Common Stock | · | May 5, 2026 | 223,500 | Acquired |
| Aug. 5, 2022 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $0.88 | Aug. 5, 2032 | 100,000 | Acquired |
| June 8, 2022 | AQST | Warrant (Right to Buy) | Common Stock | $0.96 | June 8, 2027 | 91,743 | Acquired |
| March 10, 2022 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $2.55 | March 10, 2032 | 225,000 | Acquired |
| March 11, 2021 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $5.30 | March 11, 2031 | 100,000 | Acquired |
| March 16, 2020 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $1.54 | March 16, 2030 | 110,000 | Acquired |
| May 9, 2019 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $4.83 | May 9, 2029 | 50,000 | Acquired |
| Feb. 28, 2019 | AQST | Non-Qualified Stock Option (right to buy) | Common Stock | $8.05 | Feb. 28, 2029 | 70,000 | Acquired |
| July 24, 2018 | AQST | Stock Option (Right to Purchase) | Common Stock | $15.00 | July 24, 2028 | 96,507 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $633,376 | · | $1,377,968 | $1,706,036 | $435,600 | · | $28,492 | $4,181,472 |
| 2023 | $600,000 | · | $1,432,635 | · | $435,600 | · | $27,906 | $2,496,141 |
| 2022 | $541,591 | · | · | $401,253 | $355,547 | · | $28,207 | $1,326,598 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.