Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 16 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

16 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 14, 2009 AMSC S 10b5-1 4,885 $38.69 $189,001 47,515 Direct -9.32% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 400 $38.58 $15,432 52,400 Direct -0.76% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 300 $38.58 $11,574 52,800 Direct -0.56% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 528 $38.57 $20,365 53,100 Direct -0.98% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.55 $3,855 53,628 Direct -0.19% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.54 $3,854 53,728 Direct -0.19% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 600 $38.53 $23,118 53,828 Direct -1.10% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 819 $38.52 $31,548 54,428 Direct -1.48% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.51 $3,851 55,247 Direct -0.18% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 1,720 $38.50 $66,220 55,347 Direct -3.01% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.49 $3,849 57,067 Direct -0.17% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 325 $38.49 $12,509 57,167 Direct -0.57% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 2,905 $38.49 $111,813 57,492 Direct -4.81% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.42 $3,842 60,397 Direct -0.17% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 600 $38.41 $23,046 60,497 Direct -0.98% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 1,727 $38.40 $66,317 61,097 Direct -2.75% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 900 $38.34 $34,506 62,824 Direct -1.41% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 1,100 $38.34 $42,174 63,724 Direct -1.70% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.32 $3,832 64,824 Direct -0.15% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 100 $38.31 $3,831 64,924 Direct -0.15% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 220 $38.30 $8,426 65,024 Direct -0.34% Disposed -92.2% (price as of 2026-10-02)
Dec. 14, 2009 AMSC S 10b5-1 1,264 $38.26 $48,361 65,244 Direct -1.90% Disposed -92.2% (price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 9, 2012 AMSC Stock Option (Right to buy) Common Stock (42,000) $4.09 May 9, 2022 42,000 Acquired
Sept. 26, 2011 AMSC Stock Option (Right to buy) Common Stock (45,000) $4.66 June 24, 2021 45,000 Acquired
May 12, 2010 AMSC Stock Option (Right to buy) Common Stock (8,000) $29.24 May 12, 2020 8,000 Acquired
Dec. 14, 2009 AMSC Stock Option (Right to buy) Common Stock (800) $7.81 April 23, 2012 800 Disposed
Dec. 14, 2009 AMSC Stock Option (Right to buy) Common Stock (20,000) $14.90 April 25, 2017 20,000 Disposed
May 12, 2009 AMSC Stock Option(Right to buy) Common Stock (30,000) $25.29 May 12, 2019 30,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
May 15, 2008 AMSC Common Stock 8,208 Direct
May 15, 2008 AMSC Common Stock · Indirect
May 15, 2008 AMSC Stock Option(Right to Buy)→ Common Stock (800) 800 Direct
May 15, 2008 AMSC Stock Option(Right to Buy)→ Common Stock (50,000) 50,000 Direct