Whang Jong S (CIK 0001046064)

Latest company ownership

Role: Director
Shares held
120,681
Last filed at
Aug 25, 2022
Confidence Score
50.0
2025Q4
Confidence Score History
2006Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Aug 23, 2022 Aug 25, 2022 AMTECH SYSTEMS INC Director Sell 20.0 -50,000 -41.43% $653.5K
Sep 8, 2021 Sep 10, 2021 AMTECH SYSTEMS INC Chair Sell 20.0 -36,667 -34.16% $375.6K
Mar 13, 2020 Mar 16, 2020 AMTECH SYSTEMS INC Chair Buy 86.3 +5,115 7.80% $19.9K
Nov 27, 2017 Nov 29, 2017 AMTECH SYSTEMS INC Chair Sell 22.5 -18,600 -25.95% $233.2K
May 20, 2015 May 22, 2015 AMTECH SYSTEMS INC Chair Sell 20.0 -65,613 -61.16% $731.8K
Feb 28, 2014 Mar 4, 2014 AMTECH SYSTEMS INC Chair Sell 20.0 -31,250 -12.71% $385.2K
Feb 19, 2014 Feb 21, 2014 AMTECH SYSTEMS INC Chair Sell 20.0 -60,000 -15.71% $595.9K
Aug 11, 2011 Aug 11, 2011 AMTECH SYSTEMS INC CEO Buy 95.0 +8,913 11.14% $98.2K
Feb 28, 2011 Feb 28, 2011 AMTECH SYSTEMS INC CEO Buy 90.0 +4,200 5.54% $96.2K
Dec 10, 2010 Dec 10, 2010 AMTECH SYSTEMS INC CEO Sell 20.0 -12,500 -14.15% $314K
Nov 30, 2010 Dec 2, 2010 AMTECH SYSTEMS INC CEO Sell 32.5 -11,244 -0.55% $228.3K
Nov 30, 2010 Dec 2, 2010 AMTECH SYSTEMS INC CEO Sell 37.5 -12,798 -0.41% $259.5K
Nov 17, 2010 Nov 19, 2010 AMTECH SYSTEMS INC CEO Sell 20.0 -29,658 -1.24% $523.9K
Sep 9, 2010 Sep 9, 2010 AMTECH SYSTEMS INC CEO Sell 22.5 -15,150 -14.41% $239.2K
Sep 7, 2010 Sep 9, 2010 AMTECH SYSTEMS INC CEO Sell 17.5 -81,150 -2.52% $1.3M
Jul 20, 2007 Sep 25, 2007 AMTECH SYSTEMS INC CEO Sell 5.0 -84,455 -100.00% $1.1M
Sep 20, 2007 Sep 24, 2007 AMTECH SYSTEMS INC CEO Sell 17.5 -84,455 -100.00% $1.1M
Feb 16, 2006 Feb 21, 2006 AMTECH SYSTEMS INC CEO Sell 51.3 -2,490 -0.13% $22.1K
Feb 16, 2006 Feb 21, 2006 AMTECH SYSTEMS INC CEO Sell 20.0 -42,772 -33.29% $382.4K