Littlefield Barbara G. (CIK 1777725) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-21). Recent activity: Buy AMSC (1,607 shares), Buy AMSC (3,116 shares), Buy AMSC (2,639 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-21 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Director | Buy | 1,607 | $0 |
| 2026-04-07 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Director | Buy | 3,116 | $0 |
| 2025-04-04 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Director | Buy | 2,639 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-09-21