Barbie Brewer
Insider
First SEC filing: Sept. 25, 2020 · Latest: Sept. 25, 2020
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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | AMST | A | 14,015 | · | · | 54,769 Direct | +34.39% | Acquired | (price as of 2026-10-06) |
| June 30, 2026 | AMST | A | 10,432 | · | · | 40,754 Direct | +34.40% | Acquired | (price as of 2026-10-06) |
| March 31, 2026 | AMST | A | 7,541 | · | · | 30,322 Direct | +33.10% | Acquired | (price as of 2026-10-06) |
| March 7, 2026 | AMST | M | 41,322 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| March 7, 2026 | AMST | M | 41,322 | · | · | 135,977 Direct | +43.66% | Acquired | (price as of 2026-10-06) |
| Feb. 6, 2026 | AMST | A | 49,751 | · | · | 49,751 Direct | · | Acquired | (price as of 2026-10-06) |
| Dec. 31, 2025 | AMST | A | 7,341 | · | · | 22,781 Direct | +47.55% | Acquired | (price as of 2026-10-06) |
| Sept. 30, 2025 | AMST | A | 4,549 | · | · | 15,440 Direct | +41.77% | Acquired | (price as of 2026-10-06) |
| June 30, 2025 | AMST | A | 5,158 | · | · | 10,891 Direct | +89.97% | Acquired | (price as of 2026-10-06) |
| March 31, 2025 | AMST | A | 5,733 | · | · | 5,733 Direct | · | Acquired | (price as of 2026-10-06) |
| March 7, 2025 | AMST | A | 41,322 | · | · | 41,322 Direct | · | Acquired | (price as of 2026-10-06) |
| March 7, 2025 | AMST | A | 41,322 | · | · | 94,655 Direct | +77.48% | Acquired | (price as of 2026-10-06) |
| Jan. 16, 2025 | AMST | M | 36,630 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Jan. 16, 2025 | AMST | M | 36,630 | · | · | 38,713 Direct | +1758.52% | Acquired | (price as of 2026-10-06) |
| Jan. 16, 2024 | AMST | A | 36,630 | · | · | 36,630 Direct | · | Acquired | (price as of 2026-10-06) |
| March 31, 2023 | AMST | M | 14,620 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| March 31, 2023 | AMST | M | 14,620 | · | · | 53,333 Direct | +37.77% | Acquired | (price as of 2026-10-06) |
| March 31, 2022 | AMST | A | 175,439 | · | · | 175,439 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 28, 2021 | AMST | A | 9,184 | · | · | 9,184 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 |
|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | AMST | Restricted Stock Units | Common Stock | · | · | 14,015 | Acquired |
| June 30, 2026 | AMST | Restricted Stock Units | Common Stock | · | · | 10,432 | Acquired |
| March 31, 2026 | AMST | Restricted Stock Units | Common Stock | · | · | 7,541 | Acquired |
| March 7, 2026 | AMST | Restricted Stock Units | Common Stock | · | · | 41,322 | Disposed |
| Feb. 6, 2026 | AMST | Restricted Stock Units | Common Stock | · | · | 49,751 | Acquired |
| Dec. 31, 2025 | AMST | Restricted Stock Units | Common Stock | · | · | 7,341 | Acquired |
| Sept. 30, 2025 | AMST | Restricted Stock Units | Common Stock | · | · | 4,549 | Acquired |
| June 30, 2025 | AMST | Restricted Stock Units | Common Stock | · | · | 5,158 | Acquired |
| March 31, 2025 | AMST | Restricted Stock Units | Common Stock | · | · | 5,733 | Acquired |
| March 7, 2025 | AMST | Restricted Stock Units | Common Stock | · | · | 41,322 | Acquired |
| Jan. 16, 2025 | AMST | Restricted Stock Units | Common Stock | · | · | 36,630 | Disposed |
| Jan. 16, 2024 | AMST | Restricted Stock Units | Common Stock | · | · | 36,630 | Acquired |
| March 31, 2023 | AMST | Restricted Stock Units | Common Stock | · | · | 14,620 | Disposed |
| March 31, 2022 | AMST | Restricted Stock Units | Common Stock | · | · | 175,439 | Acquired |
| Sept. 28, 2021 | AMST | Stock option (right to buy) | Common Stock | $1.78 | Sept. 27, 2031 | 9,184 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.