Dimensional Fund Advisors’s Amtech Systems ASYS Stock Holding History
Bought
  Maintained
  Sold
  | Quarter | Market Value | Status | Shares | 
        
          
          
            Change in  Stake  | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
| 
        
          
      
        2025
         Q2  | $4.04M | Sell | 
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| 
        
          
      
        2025
         Q1  | $4.48M | Sell | 
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| 
        
          
      
        2024
         Q4  | $5.08M | Buy | 
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| 
        
          
      
        2024
         Q3  | $5.36M | Sell | 
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| 
        
          
      
        2024
         Q2  | $5.52M | Sell | 
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| 
        
          
      
        2024
         Q1  | $5.52M | Sell | 
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| 
        
          
      
        2023
         Q4  | $4.72M | Sell | 
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| 
        
          
      
        2023
         Q3  | $8.59M | Sell | 
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| 
        
          
      
        2023
         Q2  | $10.9M | Sell | 
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| 
        
          
      
        2023
         Q1  | $11M | Buy | 
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| 
        
          
      
        2022
         Q4  | $8.73K | Buy | 
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| 
        
          
      
        2022
         Q3  | $9.65M | Buy | 
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| 
        
          
      
        2022
         Q2  | $8.28M | Buy | 
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| 
        
          
      
        2022
         Q1  | $11.3M | Buy | 
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| 
        
          
      
        2021
         Q4  | $10.9M | Buy | 
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| 
        
          
      
        2021
         Q3  | $12.6M | Buy | 
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| 
        
          
      
        2021
         Q2  | $10.5M | Buy | 
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| 
        
          
      
        2021
         Q1  | $12.6M | Sell | 
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| 
        
          
      
        2020
         Q4  | $7.03M | Sell | 
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| 
        
          
      
        2020
         Q3  | $5.58M | Sell | 
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| 
        
          
      
        2020
         Q2  | $5.6M | Sell | 
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| 
        
          
      
        2020
         Q1  | $5.13M | Buy | 
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| 
        
          
      
        2019
         Q4  | $8.44M | Sell | 
         | 
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| 
        
          
      
        2019
         Q3  | $6.55M | Sell | 
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| 
        
          
      
        2019
         Q2  | $6.82M | Sell | 
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| 
        
          
      
        2019
         Q1  | $6.68M | Sell | 
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| 
        
          
      
        2018
         Q4  | $5.71M | Buy | 
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| 
        
          
      
        2018
         Q3  | $6.68M | Buy | 
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| 
        
          
      
        2018
         Q2  | $6.57M | Buy | 
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| 
        
          
      
        2018
         Q1  | $6.29M | Buy | 
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| 
        
          
      
        2017
         Q4  | $7.05M | Buy | 
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| 
        
          
      
        2017
         Q3  | $6.63M | Buy | 
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| 
        
          
      
        2017
         Q2  | $3.94M | Buy | 
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| 
        
          
      
        2017
         Q1  | $2.28M | Buy | 
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| 
        
          
      
        2016
         Q4  | $1.67M | Sell | 
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| 
        
          
      
        2016
         Q3  | $2.02M | Hold | 
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| 
        
          
      
        2016
         Q2  | $2.43M | Buy | 
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| 
        
          
      
        2016
         Q1  | $2.65M | Buy | 
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| 
        
          
      
        2015
         Q4  | $2.45M | Sell | 
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| 
        
          
      
        2015
         Q3  | $1.72M | Sell | 
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| 
        
          
      
        2015
         Q2  | $4.26M | Sell | 
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| 
        
          
      
        2015
         Q1  | $4.59M | Buy | 
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| 
        
          
      
        2014
         Q4  | $3.54M | Buy | 
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| 
        
          
      
        2014
         Q3  | $3.67M | Sell | 
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| 
        
          
      
        2014
         Q2  | $4.28M | Buy | 
         | 
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| 
        
          
      
        2014
         Q1  | $4.18M | Buy | 
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| 
        
          
      
        2013
         Q4  | $2.34M | Buy | 
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| 
        
          
      
        2013
         Q3  | $2.42M | Buy | 
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| 
        
          
      
        2013
         Q2  | $2.1M | Buy | 
         |