Renaissance Technologies's ROCK Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 39,100 shares of Gibraltar Industries, Inc. (ROCK) worth $1.93 M, representing 0.00% 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 has maintained a long-term strategic position in ROCK, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2015, adding 473,700 shares. Largest reduction occurred in Q1 2018, reducing 303,453 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's Gibraltar Industries (ROCK) Holding Value Over Time
Track share changes against reported price movement
Quarterly Gibraltar Industries (ROCK) Trades by Renaissance Technologies
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -65,500 | Reduce 62.62% | 39,100 | $49.44 |
| Q3 2025 | -105,365 | Reduce 50.18% | 104,600 | $62.80 |
| Q2 2025 | -40,400 | Reduce 16.14% | 209,965 | $59.00 |
| Q1 2025 | -10,100 | Reduce 3.88% | 250,365 | $58.66 |
| Q4 2024 | +90,000 | Add 52.80% | 260,465 | $58.90 |
| Q3 2024 | +19,502 | Add 12.92% | 170,465 | $69.93 |
| Q2 2024 | -17,637 | Reduce 10.46% | 150,963 | $68.55 |
| Q1 2024 | -21,065 | Reduce 11.11% | 168,600 | $80.53 |
| Q4 2023 | +13,765 | Add 7.83% | 189,665 | $78.98 |
| Q3 2023 | -33,465 | Reduce 15.98% | 175,900 | $67.51 |
| Q2 2023 | -37,100 | Reduce 15.05% | 209,365 | $0.06 |
| Q1 2023 | -30,500 | Reduce 11.01% | 246,465 | $0.05 |
| Q4 2022 | -1,700 | Reduce 0.61% | 276,965 | $0.05 |
| Q3 2022 | -64,900 | Reduce 18.89% | 278,665 | $40.93 |
| Q2 2022 | +74,000 | Add 27.45% | 343,565 | $38.75 |
| Q1 2022 | +66,700 | Add 32.88% | 269,565 | $42.95 |
| Q4 2021 | -86,139 | Reduce 29.81% | 202,865 | $66.68 |
| Q3 2021 | -49,300 | Reduce 14.57% | 289,004 | $69.65 |
| Q2 2021 | -96,500 | Reduce 22.19% | 338,304 | $76.31 |
| Q1 2021 | -93,996 | Reduce 17.78% | 434,804 | $91.51 |
| Q4 2020 | -128,704 | Reduce 19.57% | 528,800 | $71.94 |
| Q3 2020 | -52,196 | Reduce 7.35% | 657,504 | $65.14 |
| Q2 2020 | +83,296 | Add 13.30% | 709,700 | $48.01 |
| Q1 2020 | +18,400 | Add 3.03% | 626,404 | $42.92 |
| Q4 2019 | +234,600 | Add 62.83% | 608,004 | $50.44 |
| Q3 2019 | +69,004 | Add 22.67% | 373,404 | $45.94 |
| Q2 2019 | +90,347 | Add 42.21% | 304,400 | $40.36 |
| Q1 2019 | +135,853 | Add 173.73% | 214,053 | $40.61 |
| Q4 2018 | -117,100 | Reduce 59.96% | 78,200 | $35.59 |
| Q3 2018 | -165,600 | Reduce 45.89% | 195,300 | $45.60 |
| Q2 2018 | -224,600 | Reduce 38.36% | 360,900 | $37.50 |
| Q1 2018 | -303,453 | Reduce 34.14% | 585,500 | $33.85 |
| Q4 2017 | -223,900 | Reduce 20.12% | 888,953 | $33.00 |
| Q3 2017 | +63,553 | Add 6.06% | 1.11 M | $31.15 |
| Q2 2017 | -134,527 | Reduce 11.36% | 1.05 M | $35.65 |
| Q1 2017 | -80,773 | Reduce 6.39% | 1.18 M | $41.20 |
| Q4 2016 | +293,500 | Add 30.22% | 1.26 M | $41.65 |
| Q3 2016 | +67,747 | Add 7.50% | 971,100 | $37.15 |
| Q2 2016 | -135,800 | Reduce 13.07% | 903,353 | $31.57 |
| Q1 2016 | +88,300 | Add 9.29% | 1.04 M | $28.60 |
| Q4 2015 | +473,700 | Add 99.28% | 950,853 | $25.44 |
| Q3 2015 | +180,653 | Add 60.93% | 477,153 | $18.35 |
| Q2 2015 | +80,100 | Add 37.01% | 296,500 | $20.37 |
| Q1 2015 | +42,200 | Add 24.23% | 216,400 | $16.41 |
| Q4 2014 | +16,300 | Add 10.32% | 174,200 | $16.26 |
| Q3 2014 | +10,100 | Add 6.83% | 157,900 | $13.69 |
| Q2 2014 | -29,284 | Reduce 16.54% | 147,800 | $15.51 |
| Q1 2014 | +90,684 | Add 104.96% | 177,084 | $18.87 |
| Q4 2013 | +6,000 | Add 7.46% | 86,400 | $18.59 |
| Q3 2013 | -31,900 | Reduce 28.41% | 80,400 | $14.27 |
| Q2 2013 | +112,300 | Add 0.00% | 112,300 | $14.56 |
Renaissance Technologies's Gibraltar Industries Investment FAQs
Renaissance Technologies first purchased Gibraltar Industries, Inc. (ROCK) in Q2 2013, acquiring 112,300 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 has held Gibraltar Industries, Inc. (ROCK) for 51 quarters since Q2 2013.
Renaissance Technologies's largest addition to Gibraltar Industries, Inc. (ROCK) was in Q4 2015, adding 950,853 shares worth $24.19 M.
According to the latest 13F filing for Q4 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 39,100 shares of Gibraltar Industries, Inc. (ROCK), valued at approximately $1.93 M.
As of the Q4 2025 filing, Gibraltar Industries, Inc. (ROCK) represents approximately 0.00% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies's peak holding in Gibraltar Industries, Inc. (ROCK) was 1,264,600 shares, as reported at the end of Q4 2016.