Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Arthur H. House files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Daniel P. McGahn - $5.32M in AMSC purchases and sales in the last 12 months
- John W. Kosiba Jr. - $2.32M in AMSC purchases and sales in the last 12 months
- Laura A. Dambier - $151K in AMSC purchases and sales in the last 12 months
- David R. Oliver Jr. - $8K in AMSC purchases and sales in the last 12 months
More insiders (A-Z)
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Frequently asked questions
Who is Arthur H. House?
Arthur H. House is a corporate insider of AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Arthur H. House last file a Form 4?
The most recent primary Form 4 on record is dated 7 April 2026, one of 2 filings going back to 2025.
Has Arthur H. House been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($494K) across all tracked filings.
