Daniel Richard Mazziota
Insider
First SEC filing: April 23, 2021 · Latest: April 23, 2021
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net: $-187,148
Price change vs the latest weekly close (updated to the current quote in your browser when available), 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 |
|---|---|---|---|---|---|---|---|---|---|
| July 22, 2026 | AMPG | M | 1,000 | $5.00 | $5,000 | 238,743 Direct | +0.42% | Acquired | -48.5% (price as of ) |
| July 22, 2026 | AMPG | M | 1,000 | · | · | 0 Direct | -100.00% | Disposed | |
| June 23, 2026 | AMPG | S | 10,000 | $7.71 | $77,100 | 237,743 Direct | -4.04% | Disposed | -66.6% (price as of ) |
| June 22, 2026 | AMPG | S | 7,157 | $8.46 | $60,548 | 247,743 Direct | -2.81% | Disposed | -69.6% (price as of ) |
| May 22, 2026 | AMPG | S | 10,000 | $4.95 | $49,500 | 254,900 Direct | -3.78% | Disposed | -48.0% (price as of ) |
| Jan. 14, 2026 | AMPG | M | 2,000 | $4.00 | $8,000 | 264,900 Direct | +0.76% | Acquired | -35.6% (price as of ) |
| Jan. 14, 2026 | AMPG | A | 2,000 | · | · | 2,000 Direct | · | Acquired | |
| Jan. 14, 2026 | AMPG | A | 2,000 | · | · | 2,000 Direct | · | Acquired | |
| Dec. 12, 2025 | AMPG | A | 15,000 | $3.08 | $46,200 | 262,900 Direct | +6.05% | Acquired | -16.4% (price as of ) |
| June 20, 2025 | AMPG | P | 7,157 | $2.00 | $14,314 | 247,900 Direct | +2.97% | Acquired | 28.8% (price as of ) |
| April 8, 2025 | AMPG | P | 5,000 | $1.39 | $6,950 | 240,743 Direct | +2.12% | Acquired | 85.3% (price as of ) |
| Dec. 19, 2024 | AMPG | A | 15,000 | $2.00 | $30,000 | 235,743 Direct | +6.80% | Acquired | 28.8% (price as of ) |
| Oct. 2, 2024 | AMPG | A | 2,500 | $0.75 | $1,875 | 220,743 Direct | +1.15% | Acquired | 243.3% (price as of ) |
| Aug. 29, 2024 | AMPG | A | 5,000 | $0.69 | $3,450 | 218,243 Direct | +2.34% | Acquired | 273.2% (price as of ) |
| Aug. 19, 2024 | AMPG | A | 5,000 | $1.00 | $5,000 | 213,243 Direct | +2.40% | Acquired | 157.5% (price as of ) |
| June 3, 2024 | AMPG | A | 5,000 | $1.18 | $5,900 | 208,243 Direct | +2.46% | Acquired | 118.2% (price as of ) |
| Nov. 16, 2023 | AMPG | A | 343 | $1.50 | $514 | 203,243 Direct | +0.17% | Acquired | 71.7% (price as of ) |
| Sept. 27, 2023 | AMPG | A 10b5-1 | 5,000 | $1.75 | $8,750 | 202,900 Direct | +2.53% | Acquired | 47.1% (price as of ) |
| Aug. 21, 2023 | AMPG | A | 5,000 | $1.90 | $9,500 | 197,900 Direct | +2.59% | Acquired | 35.5% (price as of ) |
| Aug. 18, 2023 | AMPG | A | 15,000 | · | · | 192,900 Direct | +8.43% | Acquired | |
| Dec. 20, 2022 | AMPG | A | 7,500 | · | · | 55,000 Direct | +15.79% | Acquired | |
| Sept. 29, 2022 | AMPG | P | 5,000 | $1.75 | $8,750 | 182,050 Direct | +2.82% | Acquired | 47.1% (price as of ) |
| Sept. 19, 2022 | AMPG | P | 5,000 | $1.99 | $9,950 | 177,050 Direct | +2.91% | Acquired | 29.4% (price as of ) |
| Aug. 22, 2022 | AMPG | A | 25,000 | · | · | 25,000 Direct | · | Acquired | |
| June 17, 2022 | AMPG | A | 15,000 | · | · | 172,050 Direct | +9.55% | Acquired | |
| April 26, 2022 | AMPG | P | 5,000 | $2.56 | $12,800 | 157,050 Direct | +3.29% | Acquired | 0.6% (price as of ) |
| April 18, 2022 | AMPG | P | 4,100 | $2.73 | $11,193 | 152,050 Direct | +2.77% | Acquired | -5.7% (price as of ) |
| April 13, 2022 | AMPG | P | 800 | $2.75 | $2,200 | 147,950 Direct | +0.54% | Acquired | -6.4% (price as of ) |
| April 12, 2022 | AMPG | P | 5,000 | $2.70 | $13,500 | 147,150 Direct | +3.52% | Acquired | -4.6% (price as of ) |
| April 8, 2022 | AMPG | P | 5,000 | $2.66 | $13,300 | 142,150 Direct | +3.65% | Acquired | -3.2% (price as of ) |
| April 7, 2022 | AMPG | P | 5,000 | $2.80 | $14,000 | 137,150 Direct | +3.78% | Acquired | -8.0% (price as of ) |
| Jan. 24, 2022 | AMPG | P | 5,000 | $3.00 | $15,000 | 132,150 Direct | +3.93% | Acquired | -14.2% (price as of ) |
| Dec. 29, 2021 | AMPG | P | 5,000 | $4.03 | $20,150 | 127,150 Direct | +4.09% | Acquired | -36.1% (price as of ) |
| Dec. 1, 2021 | AMPG | P | 5,000 | $3.55 | $17,750 | 122,150 Direct | +4.27% | Acquired | -27.5% (price as of ) |
| Nov. 29, 2021 | AMPG | A | 10,000 | · | · | 10,000 Direct | · | Acquired | |
| Nov. 29, 2021 | AMPG | A | 10,000 | · | · | 10,000 Indirect | · | Acquired | |
| Sept. 15, 2021 | AMPG | P | 5,000 | $3.43 | $17,150 | 117,150 Direct | +4.46% | Acquired | -24.9% (price as of ) |
| Sept. 7, 2021 | AMPG | P | 5,000 | $3.80 | $19,000 | 112,150 Direct | +4.67% | Acquired | -32.2% (price as of ) |
| June 30, 2021 | AMPG | A | 12,500 | · | · | 12,500 Direct | · | Acquired | |
| June 17, 2021 | AMPG | P | 1,000 | $1.91 | $1,910 | 1,000 Indirect | · | Acquired | |
| June 17, 2021 | AMPG | P | 2,000 | $1.98 | $3,960 | 2,000 Indirect | · | Acquired | |
| June 17, 2021 | AMPG | P | 1,500 | $1.99 | $2,985 | 1,500 Indirect | · | Acquired | |
| June 17, 2021 | AMPG | P | 1,000 | $1.90 | $1,900 | 1,000 Direct | · | Acquired | |
| May 19, 2021 | AMPG | P | 5,000 | $4.06 | $20,300 | 107,150 Direct | +4.89% | Acquired | -36.6% (price as of ) |
| May 19, 2021 | AMPG | P | 5,000 | $4.00 | $20,000 | 10,000 Indirect | +100.00% | Acquired | -35.6% (price as of ) |
| May 19, 2021 | AMPG | P | 700 | $4.03 | $2,821 | 1,500 Indirect | +87.50% | Acquired | -36.1% (price as of ) |
| April 16, 2021 | AMPG | P | 5,000 | $6.37 | $31,850 | 102,150 Direct | +5.15% | Acquired | -59.6% (price as of ) |
| April 16, 2021 | AMPG | P | 5,000 | $6.42 | $32,100 | 5,000 Indirect | · | Acquired | -59.9% (price as of ) |
| April 16, 2021 | AMPG | P | 800 | $6.38 | $5,104 | 800 Indirect | · | Acquired | -59.6% (price as of ) |
| April 16, 2021 | AMPG | P | 5,000 | $6.44 | $32,200 | 5,000 Indirect | · | Acquired | -60.0% (price as of ) |
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 |
|---|---|---|---|---|---|---|---|
| July 22, 2026 | AMPG | Series A Rights [F1] | Common Stock | $5.00 | July 18, 2026 | 1,000 | Disposed |
| Jan. 14, 2026 | AMPG | Series A Rights [F1] | Common Stock | $5.00 | July 18, 2026 | 2,000 | Acquired |
| Jan. 14, 2026 | AMPG | Series B Rights [F1] | Common Stock | $6.00 | Nov. 20, 2026 | 2,000 | Acquired |
| Dec. 20, 2022 | AMPG | Stock options (Right to buy) | Common Stock | $1.92 | Dec. 20, 2027 | 7,500 | Acquired |
| Aug. 22, 2022 | AMPG | Stock Options (Right to buy) | Common Stock | $2.23 | Aug. 22, 2027 | 25,000 | Acquired |
| Nov. 29, 2021 | AMPG | Stock Options (right to buy) | Common Stock | $3.52 | Nov. 29, 2026 | 10,000 | Acquired |
| Nov. 29, 2021 | AMPG | Stock Options (right to buy) | Common Stock | $3.52 | Nov. 29, 2026 | 10,000 | Acquired |
| June 30, 2021 | AMPG | Stock Options (right to buy) | Common Stock | $4.63 | June 30, 2026 | 12,500 | Acquired |
| June 17, 2021 | AMPG | Warrant to Purchase Common Stock (right to buy) [F1] | Common Stock | $7.00 | Feb. 19, 2026 | 1,000 | Acquired |
| June 17, 2021 | AMPG | Warrant to Purchase Common Stock (right to buy) [F1] | Common Stock | $7.00 | Feb. 19, 2026 | 2,000 | Acquired |
| June 17, 2021 | AMPG | Warrant to Purchase Common Stock (right to buy) [F1] | Common Stock | $7.00 | Feb. 19, 2026 | 1,500 | Acquired |
| June 17, 2021 | AMPG | Warrant to Purchase Common Stock (right to buy) [F1] | Common Stock | $7.00 | Feb. 19, 2026 | 1,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 23, 2021 | AMPG | Common Stock | 97,150 | Direct |