John Gill
Insider
First SEC filing: Aug. 20, 2007 · Latest: Feb. 14, 2022
Insider at
Insider transactions
2 buys (P)
0 sells (S)
Net: $82,622
Avg return of open purchases vs now: -26.5%
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 1, 2026 | ALT | A | 48,800 | · | · | 48,800 Direct | · | Acquired | (price as of 2026-10-02) |
| April 6, 2026 | ALT | P | 9,200 | $3.41 | $31,372 | 21,700 Direct | +73.60% | Acquired | -19.8% (price as of 2026-10-02) |
| Dec. 23, 2025 | ALT | P | 12,500 | $4.10 | $51,250 | 12,500 Direct | · | Acquired | -33.3% (price as of 2026-10-02) |
| Sept. 25, 2025 | ALT | A | 48,800 | · | · | 48,800 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2024 | ALT | A | 34,900 | · | · | 34,900 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 28, 2023 | ALT | A | 26,100 | · | · | 26,100 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 29, 2022 | ALT | A | 23,500 | · | · | 23,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 12, 2022 | ALT | S | 2,714 | $15.00 | $40,710 | 2,771 Direct | -49.48% | Disposed | -81.8% (price as of 2026-10-02) |
| Jan. 6, 2022 | ALT | G | 2,714 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 23, 2021 | ALT | A | 24,100 | · | · | 24,100 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 30, 2020 | ALT | S 10b5-1 | 8,425 | $11.92 | $100,426 | 11,199 Direct | -42.93% | Disposed | -77.1% (price as of 2026-10-02) |
| Sept. 24, 2020 | ALT | M | 16,850 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 24, 2020 | ALT | M | 16,850 | · | · | 19,624 Direct | +607.43% | Acquired | (price as of 2026-10-02) |
| Sept. 24, 2020 | ALT | A | 25,500 | · | · | 25,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 25, 2020 | ALT | A | 16,850 | · | · | 16,850 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2019 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 13, 2017 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 2, 2017 | ALT | P | 1,000 | $4.34 | $4,340 | 83,224 Direct | +1.22% | Acquired | -97.9% (price as of 2026-10-02) |
| Nov. 22, 2016 | ALT | M | 100,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 22, 2016 | ALT | M | 100,000 | $2.20 | $220,000 | 822,244 Direct | +13.85% | Acquired | -95.9% (price as of 2026-10-02) |
| Sept. 16, 2016 | ALT | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 16, 2016 | ALT | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 16, 2016 | ALT | M | 20,000 | $2.47 | $49,400 | 722,244 Direct | +2.85% | Acquired | -96.3% (price as of 2026-10-02) |
| Sept. 16, 2016 | ALT | M | 10,000 | $2.59 | $25,900 | 702,244 Direct | +1.44% | Acquired | -96.5% (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | $1.51 | $30,200 | 692,244 Direct | +2.98% | Acquired | -94.0% (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | $1.64 | $32,800 | 672,244 Direct | +3.07% | Acquired | -94.4% (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | $1.45 | $29,000 | 652,244 Direct | +3.16% | Acquired | -93.7% (price as of 2026-10-02) |
| Sept. 15, 2016 | ALT | M | 20,000 | $1.60 | $32,000 | 632,244 Direct | +3.27% | Acquired | -94.3% (price as of 2026-10-02) |
| June 1, 2016 | ALT | A | 100,000 | $2.20 | $220,000 | 100,000 Direct | · | Acquired | -95.9% (price as of 2026-10-02) |
| Nov. 5, 2015 | ALT | A | 612,244 | · | · | 612,244 Direct | · | Acquired | (price as of 2026-10-02) |
| June 18, 2014 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 11, 2013 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 22, 2012 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 23, 2011 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 23, 2010 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 14, 2009 | ALT | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 5, 2009 | ALT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 9, 2009 | ALT | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 9, 2007 | ALT | P | 20,000 | · | · | 20,000 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 |
|---|---|---|---|---|---|---|---|
| May 1, 2026 | ALT | Stock Options (option to buy) [F1] | Common Stock, par value $0.0001 | $2.82 | May 1, 2036 | 48,800 | Acquired |
| Sept. 25, 2025 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $3.92 | Sept. 25, 2035 | 48,800 | Acquired |
| Sept. 26, 2024 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $6.81 | Sept. 26, 2034 | 34,900 | Acquired |
| Sept. 28, 2023 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $2.50 | Sept. 28, 2033 | 26,100 | Acquired |
| Sept. 29, 2022 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $12.62 | Sept. 29, 2032 | 23,500 | Acquired |
| Sept. 23, 2021 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $15.44 | Sept. 23, 2031 | 24,100 | Acquired |
| Sept. 24, 2020 | ALT | Restricted Stock Units ("RSUs") | Common Stock | · | · | 16,850 | Disposed |
| Sept. 24, 2020 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $12.03 | Sept. 24, 2030 | 25,500 | Acquired |
| June 25, 2020 | ALT | Restricted Stock Units ("RSUs") | Common Stock | · | · | 16,850 | Acquired |
| Jan. 2, 2019 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $2.60 | Jan. 2, 2029 | 20,000 | Acquired |
| Oct. 13, 2017 | ALT | Stock Options (option to buy) | Common Stock, par value $0.0001 | $2.50 | Oct. 13, 2027 | 20,000 | Acquired |
| Nov. 22, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $2.20 | May 31, 2026 | 100,000 | Disposed |
| Sept. 16, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $2.47 | Aug. 5, 2019 | 20,000 | Disposed |
| Sept. 16, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $2.59 | June 13, 2018 | 10,000 | Disposed |
| Sept. 15, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $1.51 | June 17, 2024 | 20,000 | Disposed |
| Sept. 15, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $1.64 | June 11, 2023 | 20,000 | Disposed |
| Sept. 15, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $1.45 | June 22, 2022 | 20,000 | Disposed |
| Sept. 15, 2016 | ALT | Employee Stock Option (right to buy) | Common Stock | $1.60 | June 23, 2020 | 20,000 | Disposed |
| June 1, 2016 | ALT | Stock option (right to buy) | Common Stock | $2.20 | May 31, 2026 | 100,000 | Acquired |
| June 18, 2014 | ALT | Stock option (right to buy) | Common Stock | $1.51 | June 17, 2024 | 20,000 | Acquired |
| June 11, 2013 | ALT | Stock option (right to buy) | Common Stock | $1.64 | June 11, 2023 | 20,000 | Acquired |
| June 22, 2012 | ALT | Stock option (right to buy) | Common Stock | $1.45 | June 22, 2022 | 20,000 | Acquired |
| June 23, 2011 | ALT | Stock option (right to buy) | Common Stock | $3.11 | June 23, 2021 | 20,000 | Acquired |
| June 23, 2010 | ALT | Stock option (right to buy) | Common Stock | $1.60 | June 23, 2020 | 20,000 | Acquired |
| Aug. 14, 2009 | ALT | Option to Purchase | Common Stock | $2.92 | Aug. 14, 2019 | 40,000 | Acquired |
| Aug. 5, 2009 | ALT | Stock Option (right to buy) | Common Stock | $2.47 | Aug. 5, 2019 | 20,000 | Acquired |
| March 9, 2009 | ALT | Stock option (right to buy) | Common Stock | $2.59 | June 13, 2018 | 10,000 | Acquired |
| Oct. 9, 2007 | ALT | Stock Option (right to buy) | Common Stock | $5.25 | Oct. 9, 2017 | 20,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2017 | $106,812 | $303,150 | · | · | · | · | $50,273 | $492,235 |
| 2016 | $300,000 | · | · | · | $150,000 | · | $7,950 | $1,691,900 |
| 2015 | $159,872 | · | · | · | $175,000 | · | $1,000 | $335,872 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.