Senior insider sale
SVP, CFO & Treasurer at AMERICAN SUPERCONDUCTOR CORP /DE/ — senior position signals high conviction
$2.32M
48.51K shares
What this filing means
KOSIBA JOHN W JR plans to sell 48.51K shares of AMERICAN SUPERCONDUCTOR CORP /DE/ valued at approximately $2.32M. 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: 6/11/2026ACC: 0001950047-26-005955
Officer· SVP, CFO & Treasurer
Since Jun 2018
48.51K
Shares to sell
$2.32M
Approx. market value
6.77K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Restricted Stock
Not Applicable
6/10/2026
6.77KTotal acquired6.77K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
6/10/2026 | Restricted Stock Not Applicable | 6.77K | — |
| Total | 6.77K | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
4.83K
Market value
$202.0K
6/8/2026
—Completed
Units to sell
6.45K
Market value
$315.5K
6/3/2026
—Completed
Units to sell
30.46K
Market value
$1.55M
6/2/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
6.77K
Market value
$253.6K
6/11/2026
Total
Units
48.51K
Value
$2.32M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
6/8/2026 | 4.83K | $202.0K | — | Completed |
6/3/2026 | 6.45K | $315.5K | — | Completed |
6/2/2026 | 30.46K | $1.55M | — | Completed |
| Planned — Approximate Date | ||||
6/11/2026 | 6.77K | $253.6K | NASDAQ | Planned |
| Total | 48.51K | $2.32M | ||