Back to AMSC
ESSEX INVESTMENT MANAGEMENT CO LLC → AMSC
ESSEX INVESTMENT MANAGEMENT CO LLC AMSC Position History
American Superconductor Corporation
Quarters held
5
Latest value
$6M
Q3 2026
Peak value
$14.6M
First seen
Q3 2025
Dollar value over time
Show data table
| Period | Position value |
|---|---|
| Q3 2025 | $14.6M |
| Q4 2025 | $6.2M |
| Q1 2026 | $7.7M |
| Q2 2026 | $9.2M |
| Q3 2026 | $6M |
Quarter-by-quarter history
Every disclosed snapshot of the position
| Quarter | Value | Shares | % Portfolio | Change |
|---|---|---|---|---|
| Q3 2026 | $6M | 205.4K | — | — |
| Q2 2026 | $9.2M | 221.9K | — | — |
| Q1 2026 | $7.7M | 227.6K | — | — |
| Q4 2025 | $6.2M | 215.2K | — | — |
| Q3 2025 | $14.6M | 245.6K | — | — |
Other funds holding AMSC
$154.2M
$86.4M
$67.5M
$56.4M
$56.4M
$44.4M