KOSIBA JOHN W JR

PrivateCIK: 1703463
Location

DEVENS, MA

KOSIBA JOHN W JR (SVP, CFO & Treasurer) sold 2.0% of their position (6.77K shares) of AMERICAN SUPERCONDUCTOR CORP /DE/ on the open market

Open‑market sale worth $253.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderKOSIBA JOHN W JRCIK 1703463
Officer· SVP, CFO & Treasurer
Since Jun 2018
-6.77K
Net shares
Net seller
$253.6K
Total sold
2
Open market trades
0B · 2S
2
Total transactions
6.77K disposed
Non-Derivative Transactions2

Common Stock

Direct
S · Sale

Shares

5.03K

Price / share

$37.33

Trade value

$187.60K

% of position

1.5%
6/11/2026
341.15K336.12K

Common Stock

Direct
S · Sale

Shares

1.74K

Price / share

$37.85

Trade value

$65.98K

% of position

0.5%
6/11/2026
336.12K334.38K
Total

Net shares

6.77K

Net value

-$253.58K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned371.00
Total
371.00 indirect371.00
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
KOSIBA JOHN W JR — Insider Transaction (Form 4) Filed Jun 11, 2026 | Finecho