Renaissance Technologies (RenTech)'s ASYS Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 260,605 shares of Amtech Systems, Inc. (ASYS) worth $6.01 M, representing 0.01% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 44 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in ASYS, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2017, adding 242,787 shares. Largest reduction occurred in Q2 2018, reducing 541,841 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Amtech Systems (ASYS) Holding Value Over Time
Track share changes against reported price movement
Quarterly Amtech Systems (ASYS) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2026 | +152,509 | Add 141.09% | 260,605 | $23.08 |
| Q1 2026 | -38,500 | Reduce 26.26% | 108,096 | $11.68 |
| Q4 2025 | +126,296 | Add 622.15% | 146,596 | $12.55 |
| Q3 2025 | +5,800 | Add 40.00% | 20,300 | $9.26 |
| Q2 2025 | +1,800 | Add 14.17% | 14,500 | $4.44 |
| Q1 2025 | +1,000 | Add 8.55% | 12,700 | $4.83 |
| Q4 2024 | +11,700 | New Buy | 11,700 | $5.45 |
| Q3 2023 | -77,661 | Sold Out | 0 | $0.00 |
| Q2 2023 | +2,114 | Add 2.80% | 77,661 | $0.01 |
| Q1 2023 | +7,951 | Add 11.76% | 75,547 | $0.01 |
| Q4 2022 | +20,800 | Add 44.45% | 67,596 | $0.01 |
| Q3 2022 | +11,600 | Add 32.96% | 46,796 | $8.51 |
| Q2 2022 | -14,900 | Reduce 29.74% | 35,196 | $7.30 |
| Q1 2022 | -100,461 | Reduce 66.73% | 50,096 | $10.06 |
| Q4 2021 | +67,564 | Add 81.41% | 150,557 | $9.88 |
| Q3 2021 | -139,703 | Reduce 62.73% | 82,993 | $11.43 |
| Q2 2021 | +77,600 | Add 53.48% | 222,696 | $9.64 |
| Q1 2021 | -40,366 | Reduce 21.77% | 145,096 | $11.82 |
| Q4 2020 | +36,600 | Add 24.59% | 185,462 | $6.38 |
| Q3 2020 | +102,500 | Add 221.09% | 148,862 | $4.89 |
| Q2 2020 | +23,596 | Add 103.65% | 46,362 | $4.87 |
| Q1 2020 | +22,766 | New Buy | 22,766 | $4.35 |
| Q3 2018 | -21,191 | Sold Out | 0 | $0.00 |
| Q2 2018 | -541,841 | Reduce 96.24% | 21,191 | $6.04 |
| Q1 2018 | +16,100 | Add 2.94% | 563,032 | $7.32 |
| Q4 2017 | +175,009 | Add 47.06% | 546,932 | $10.07 |
| Q3 2017 | +242,787 | Add 188.01% | 371,923 | $11.98 |
| Q2 2017 | +23,400 | Add 22.13% | 129,136 | $8.44 |
| Q1 2017 | +6,500 | Add 6.55% | 105,736 | $5.50 |
| Q4 2016 | +22,600 | Add 29.49% | 99,236 | $4.25 |
| Q3 2016 | +16,200 | Add 26.81% | 76,636 | $4.96 |
| Q2 2016 | +4,600 | Add 8.24% | 60,436 | $5.97 |
| Q1 2016 | -3,700 | Reduce 6.21% | 55,836 | $6.48 |
| Q4 2015 | -35,300 | Reduce 37.22% | 59,536 | $6.27 |
| Q3 2015 | -47,600 | Reduce 33.42% | 94,836 | $4.30 |
| Q2 2015 | -69,364 | Reduce 32.75% | 142,436 | $10.39 |
| Q1 2015 | +29,004 | Add 15.87% | 211,800 | $11.18 |
| Q4 2014 | -6,996 | Reduce 3.69% | 182,796 | $10.20 |
| Q3 2014 | +33,296 | Add 21.28% | 189,792 | $10.70 |
| Q2 2014 | -2,600 | Reduce 1.63% | 156,496 | $12.23 |
| Q1 2014 | +34,342 | Add 27.53% | 159,096 | $12.17 |
| Q4 2013 | +15,263 | Add 13.94% | 124,754 | $6.96 |
| Q3 2013 | -1,105 | Reduce 1.00% | 109,491 | $7.30 |
| Q2 2013 | +110,596 | Add 0.00% | 110,596 | $6.36 |
Renaissance Technologies (RenTech)'s Amtech Systems Investment FAQs
Renaissance Technologies (RenTech) first purchased Amtech Systems, Inc. (ASYS) in Q2 2013, acquiring 110,596 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Amtech Systems, Inc. (ASYS) for 44 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to Amtech Systems, Inc. (ASYS) was in Q3 2017, adding 371,923 shares worth $4.46 M.
According to the latest 13F filing for Q2 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 260,605 shares of Amtech Systems, Inc. (ASYS), valued at approximately $6.01 M.
As of the Q2 2026 filing, Amtech Systems, Inc. (ASYS) represents approximately 0.01% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Amtech Systems, Inc. (ASYS) was 563,032 shares, as reported at the end of Q1 2018.