Arthur H House
Insider
First SEC filing: Sept. 22, 2016 · Latest: Sept. 22, 2016
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| April 3, 2026 | AMSC | A | 3,116 | · | · | 51,779 Direct | +6.40% | Acquired | (price as of 2026-10-06) |
| Aug. 8, 2025 | AMSC | S | 9,703 | $50.92 | $494,077 | 48,663 Direct | -16.62% | Disposed | -37.5% (price as of 2026-10-06) |
| Aug. 6, 2025 | AMSC | M | 9,703 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 6, 2025 | AMSC | M | 9,703 | $6.80 | $65,980 | 58,366 Direct | +19.94% | Acquired | 368.4% (price as of 2026-10-06) |
| April 3, 2025 | AMSC | A | 2,639 | · | · | 48,663 Direct | +5.73% | Acquired | (price as of 2026-10-06) |
| April 3, 2024 | AMSC | A | 3,840 | · | · | 46,024 Direct | +9.10% | Acquired | (price as of 2026-10-06) |
| April 5, 2023 | AMSC | A | 11,627 | · | · | 42,184 Direct | +38.05% | Acquired | (price as of 2026-10-06) |
| April 5, 2022 | AMSC | A | 6,067 | · | · | 30,557 Direct | +24.77% | Acquired | (price as of 2026-10-06) |
| April 5, 2021 | AMSC | A | 2,073 | · | · | 24,490 Direct | +9.25% | Acquired | (price as of 2026-10-06) |
| April 3, 2020 | AMSC | A | 7,092 | · | · | 22,417 Direct | +46.28% | Acquired | (price as of 2026-10-06) |
| April 3, 2019 | AMSC | A | 3,152 | · | · | 15,325 Direct | +25.89% | Acquired | (price as of 2026-10-06) |
| April 4, 2018 | AMSC | A | 6,896 | · | · | 12,173 Direct | +130.68% | Acquired | (price as of 2026-10-06) |
| April 5, 2017 | AMSC | A | 3,277 | · | · | 5,277 Direct | +163.85% | Acquired | (price as of 2026-10-06) |
| Sept. 20, 2016 | AMSC | A | 9,703 | · | · | 9,703 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 6, 2025 | AMSC | Stock Options (Right to Buy) | Common Stock | $6.80 | Sept. 20, 2026 | 9,703 | Disposed |
| Sept. 20, 2016 | AMSC | Stock Options (Right to Buy) | Common Stock | $6.80 | Sept. 20, 2026 | 9,703 | 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 |
|---|---|---|---|---|
| Sept. 22, 2016 | AMSC | Common Stock | · | Direct |