InsidersTradesSigma
AMERICAN SUPERCONDUCTOR CORP /DE/: management transactions · United States · SEC (Form 4)
Browse the full management transaction log of AMERICAN SUPERCONDUCTOR CORP /DE/, a publicly traded company based in United States. Shares are listed on US US, under the oversight of SEC (Form 4). Market capitalisation: €19.9m. The latest transaction was reported on 3 June 2026 (Attribution). Among the most active insiders: Kosiba John W JR. Every trade is openly available.
60
Insider Decl.
0
Thresholds
€210,588
3 ops.
Buy Volume
€10m
26 ops.
Sell Volume
39Σ signal
Informational score on this market. Our backtest validates the signal only on 8 EU venues; elsewhere (notably US markets) insider buys historically invert or do not hold. Not a recommendation.
Last declaration on 3 June 2026
Declarations60 total
60,000 shares0Common StockSEC:0001193125-26-255450:0
13,762 shares@ US$49.45110.7% of flowCommon StockSEC:0001193125-26-255450:1
27,900 shares@ US$50.631422.1% of flowCommon StockSEC:0001193125-26-255450:2
28,558 shares@ US$51.458623.0% of flowCommon StockSEC:0001193125-26-255450:3
2,305 shares@ US$52.13611.9% of flowCommon StockSEC:0001193125-26-255450:4
7,075 shares@ US$48.30665.4% of flowCommon StockSEC:0001193125-26-255450:5
4,501 shares@ US$49.25413.5% of flowCommon StockSEC:0001193125-26-255450:6
500 shares@ US$50.2880.4% of flowCommon StockSEC:0001193125-26-255450:7
817 shares@ US$50.990.7% of flowCommon StockSEC:0001193125-26-255450:8
30,000 shares0Common StockSEC:0001193125-26-255471:0
5,704 shares@ US$49.4615.3% of flowCommon StockSEC:0001193125-26-255471:1
12,122 shares@ US$50.618811.5% of flowCommon StockSEC:0001193125-26-255471:2
12,036 shares@ US$51.46611.6% of flowCommon StockSEC:0001193125-26-255471:3
600 shares@ US$52.19170.6% of flowCommon StockSEC:0001193125-26-255471:4
3,200 shares@ US$48.30692.9% of flowCommon StockSEC:0001193125-26-255471:5
2,638 shares@ US$49.28462.4% of flowCommon StockSEC:0001193125-26-255471:6
609 shares@ US$50.82580.6% of flowCommon StockSEC:0001193125-26-255471:7
3,116 shares0Common StockSEC:0001193125-26-145787:0
3,116 shares0Common StockSEC:0001193125-26-145795:0
3,116 shares0Common StockSEC:0001193125-26-145799:0
3,116 shares0Common StockSEC:0001193125-26-145803:0
3,116 shares0Common StockSEC:0001193125-26-145810:0
2,665 shares0Common StockSEC:0001193125-26-145815:0
11,860 shares@ US$24.49665.6% of flowCommon StockSEC:0000950170-25-076416:0
12,815 shares@ US$24.4935.1% of flowCommon StockSEC:0000950170-25-076404:0
25 of 60 declarations