Renaissance Technologies (RenTech)'s FSTR Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 316,382 shares of L.B. Foster Company (FSTR) worth $8.83 M, representing 0.01% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in FSTR, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2017, adding 173,200 shares. Largest reduction occurred in Q2 2021, reducing 173,200 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s LB Foster Company (FSTR) Holding Value Over Time
Track share changes against reported price movement
Quarterly LB Foster Company (FSTR) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -14,200 | Reduce 4.30% | 316,382 | $27.90 |
| Q4 2025 | -13,400 | Reduce 3.90% | 330,582 | $26.95 |
| Q3 2025 | -1,300 | Reduce 0.38% | 343,982 | $26.95 |
| Q2 2025 | -5,600 | Reduce 1.60% | 345,282 | $21.87 |
| Q1 2025 | -1,200 | Reduce 0.34% | 350,882 | $19.68 |
| Q4 2024 | -38,200 | Reduce 9.79% | 352,082 | $26.90 |
| Q3 2024 | -19,300 | Reduce 4.71% | 390,282 | $20.43 |
| Q2 2024 | +51,700 | Add 14.45% | 409,582 | $21.52 |
| Q1 2024 | -49,400 | Reduce 12.13% | 357,882 | $27.31 |
| Q4 2023 | +21,100 | Add 5.46% | 407,282 | $21.99 |
| Q3 2023 | -700 | Reduce 0.18% | 386,182 | $18.91 |
| Q2 2023 | +19,815 | Add 5.40% | 386,882 | $0.01 |
| Q1 2023 | -4,316 | Reduce 1.16% | 367,067 | $0.01 |
| Q4 2022 | -15,849 | Reduce 4.09% | 371,383 | $0.01 |
| Q3 2022 | -29,300 | Reduce 7.03% | 387,232 | $9.76 |
| Q2 2022 | -7,000 | Reduce 1.65% | 416,532 | $12.87 |
| Q1 2022 | -21,900 | Reduce 4.92% | 423,532 | $15.37 |
| Q4 2021 | -17,100 | Reduce 3.70% | 445,432 | $13.75 |
| Q3 2021 | -13,300 | Reduce 2.80% | 462,532 | $15.49 |
| Q2 2021 | -173,200 | Reduce 26.69% | 475,832 | $18.64 |
| Q1 2021 | +34,040 | Add 5.54% | 649,032 | $17.90 |
| Q4 2020 | -20,900 | Reduce 3.29% | 614,992 | $15.05 |
| Q3 2020 | -30,200 | Reduce 4.53% | 635,892 | $13.42 |
| Q2 2020 | -42,300 | Reduce 5.97% | 666,092 | $12.77 |
| Q1 2020 | -10,807 | Reduce 1.50% | 708,392 | $12.36 |
| Q4 2019 | +7,099 | Add 1.00% | 719,199 | $19.38 |
| Q3 2019 | -1,400 | Reduce 0.20% | 712,100 | $21.67 |
| Q2 2019 | +137,100 | Add 23.79% | 713,500 | $27.34 |
| Q1 2019 | +66,545 | Add 13.05% | 576,400 | $18.82 |
| Q4 2018 | +3,455 | Add 0.68% | 509,855 | $15.90 |
| Q3 2018 | +23,100 | Add 4.78% | 506,400 | $20.55 |
| Q2 2018 | +12,674 | Add 2.69% | 483,300 | $22.95 |
| Q1 2018 | +44,526 | Add 10.45% | 470,626 | $23.55 |
| Q4 2017 | +64,800 | Add 17.94% | 426,100 | $27.15 |
| Q3 2017 | +173,200 | Add 92.08% | 361,300 | $22.75 |
| Q2 2017 | +38,900 | Add 26.07% | 188,100 | $21.45 |
| Q1 2017 | +3,700 | Add 2.54% | 149,200 | $12.50 |
| Q4 2016 | +19,900 | Add 15.84% | 145,500 | $13.60 |
| Q3 2016 | -3,000 | Reduce 2.33% | 125,600 | $12.01 |
| Q2 2016 | -17,800 | Reduce 12.16% | 128,600 | $10.89 |
| Q1 2016 | +1,300 | Add 0.90% | 146,400 | $18.16 |
| Q4 2015 | -38,781 | Reduce 21.09% | 145,100 | $13.66 |
| Q3 2015 | +121,908 | Add 196.71% | 183,881 | $12.28 |
| Q2 2015 | +32,373 | Add 109.37% | 61,973 | $34.61 |
| Q1 2015 | +3,800 | Add 14.73% | 29,600 | $47.47 |
| Q4 2014 | +25,800 | New Buy | 25,800 | $48.57 |
| Q2 2014 | -20,292 | Sold Out | 0 | $0.00 |
| Q1 2014 | -6,908 | Reduce 25.40% | 20,292 | $46.87 |
| Q4 2013 | -3,500 | Reduce 11.40% | 27,200 | $47.28 |
| Q3 2013 | -7,400 | Reduce 19.42% | 30,700 | $45.73 |
| Q2 2013 | +38,100 | Add 0.00% | 38,100 | $43.18 |
Renaissance Technologies (RenTech)'s LB Foster Company Investment FAQs
Renaissance Technologies (RenTech) first purchased L.B. Foster Company (FSTR) in Q2 2013, acquiring 38,100 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 L.B. Foster Company (FSTR) for 51 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to L.B. Foster Company (FSTR) was in Q3 2017, adding 361,300 shares worth $8.22 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 316,382 shares of L.B. Foster Company (FSTR), valued at approximately $8.83 M.
As of the Q1 2026 filing, L.B. Foster Company (FSTR) 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 L.B. Foster Company (FSTR) was 719,199 shares, as reported at the end of Q4 2019.