Senior insider sale
SVP, CFO & Treasurer at AMERICAN SUPERCONDUCTOR CORP /DE/ — senior position signals high conviction
$1.86M
36.91K shares
What this filing means
KOSIBA JOHN W JR plans to sell 36.91K shares of AMERICAN SUPERCONDUCTOR CORP /DE/ valued at approximately $1.86M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 6/3/2026ACC: 0001950047-26-005556
Officer· SVP, CFO & Treasurer
Since Jun 2018
36.91K
Shares to sell
$1.86M
Approx. market value
6.45K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
Restricted Stock
Not Applicable
6/2/2026
6.45KTotal acquired6.45K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
6/2/2026 | Restricted Stock Not Applicable | 6.45K | — |
| Total | 6.45K | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
30.46K
Market value
$1.55M
6/2/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
6.45K
Market value
$315.5K
6/3/2026
Total
Units
36.91K
Value
$1.86M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
6/2/2026 | 30.46K | $1.55M | — | Completed |
| Planned — Approximate Date | ||||
6/3/2026 | 6.45K | $315.5K | NASDAQ | Planned |
| Total | 36.91K | $1.86M | ||