Tower Research Capital (TRC)’s aTyr Pharma ATYR Stock Holding History
Bought
  Maintained
  Sold
  | Quarter | Market Value | Status | Shares | 
        
          
          
            Change in  Stake  | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
| 
        
          
      
        2025
         Q2  | $52.4K | Sell | 
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        2025
         Q1  | $83.2K | Sell | 
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        2024
         Q4  | $119K | Buy | 
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| 
        
          
      
        2024
         Q3  | $23.8K | Sell | 
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| 
        
          
      
        2024
         Q2  | $42.6K | Buy | 
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| 
        
          
      
        2024
         Q1  | $12.2K | Buy | 
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| 
        
          
      
        2023
         Q4  | – | Sell | 
         | 
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| 
        
          
      
        2023
         Q3  | $1.08K | Buy | 
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| 
        
          
      
        2023
         Q2  | $456 | Sell | 
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| 
        
          
      
        2023
         Q1  | $3K | Sell | 
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| 
        
          
      
        2022
         Q4  | $38K | Sell | 
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| 
        
          
      
        2022
         Q3  | $123K | Buy | 
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| 
        
          
      
        2022
         Q2  | $62K | Buy | 
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| 
        
          
      
        2022
         Q1  | $5K | Buy | 
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| 
        
          
      
        2021
         Q4  | $0 | Sell | 
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| 
        
          
      
        2021
         Q3  | $6K | Buy | 
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| 
        
          
      
        2021
         Q2  | $1K | Sell | 
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| 
        
          
      
        2021
         Q1  | $68K | Buy | 
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| 
        
          
      
        2020
         Q4  | $11K | Buy | 
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| 
        
          
      
        2020
         Q3  | $4K | Buy | 
         | 
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| 
        
          
      
        2020
         Q1  | – | Sell | 
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| 
        
          
      
        2019
         Q4  | $8K | Sell | 
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| 
        
          
      
        2019
         Q3  | $21K | Buy | 
         | 
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| 
        
          
      
        2019
         Q1  | – | Sell | 
         | 
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| 
        
          
      
        2018
         Q4  | $0 | Buy | 
         | 
    |||||
| 
        
          
      
        2018
         Q2  | – | Sell | 
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| 
        
          
      
        2018
         Q1  | $40K | Buy | 
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| 
        
          
      
        2017
         Q4  | $41K | Buy | 
         | 
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| 
        
          
      
        2017
         Q1  | – | Sell | 
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| 
        
          
      
        2016
         Q4  | $2K | Sell | 
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| 
        
          
      
        2016
         Q3  | $4K | Sell | 
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| 
        
          
      
        2016
         Q2  | $8K | Buy | 
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| 
        
          
      
        2016
         Q1  | – | Hold | 
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| 
        
          
      
        2015
         Q4  | – | Sell | 
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| 
        
          
      
        2015
         Q3  | $12K | Buy | 
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| 
        
          
      
        2015
         Q2  | $1K | Buy | 
         |