SEC CIK 1685155

House Arthur H

Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
AMSCview stock →51,7792026-04-03

Position History — AMSC

Reported shares owned immediately after each Form 4 transaction, over time.

019,45538,91158,3662016-092018-042020-042022-042024-042025-082026-04

Recent Filings — AMSC

DateActivitySharesPriceOwned After
2026-04-03Grant / award3,116$0.0051,779
2025-08-08Open-market sale9,703$50.9248,663
2025-08-06Option exercise (derivative)9,703$0.000
2025-08-06Option exercise9,703$6.8058,366
2025-04-03Grant / award2,639$0.0048,663
2024-04-03Grant / award3,840$0.0046,024
2023-04-05Grant / award11,627$0.0042,184
2022-04-05Grant / award6,067$0.0030,557
2021-04-05Grant / award2,073$0.0024,490
2020-04-03Grant / award7,092$0.0022,417
2019-04-03Grant / award3,152$0.0015,325
2018-04-04Grant / award6,896$0.0012,173
2017-04-05Grant / award3,277$0.005,277
2016-09-20Grant / award (derivative)9,703$0.009,703
2016-09-15———2,000

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.