Jim Simons’s Gibraltar Industries ROCK Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $618K | Sell |
15,500
-23,600
| -60% | -$1.14M | ﹤0.01% | 2512 |
|
|
2025
Q4 | $1.93M | Sell |
39,100
-65,500
| -63% | -$3.75M | ﹤0.01% | 1891 |
|
|
2025
Q3 | $6.57M | Sell |
104,600
-105,365
| -50% | -$6.59M | 0.01% | 1327 |
|
|
2025
Q2 | $12.4M | Sell |
209,965
-40,400
| -16% | -$2.31M | 0.02% | 937 |
|
|
2025
Q1 | $14.7M | Sell |
250,365
-10,100
| -4% | -$628K | 0.02% | 810 |
|
|
2024
Q4 | $15.3M | Buy |
260,465
+90,000
| +53% | +$6.14M | 0.02% | 781 |
|
|
2024
Q3 | $11.9M | Buy |
170,465
+19,502
| +13% | +$1.36M | 0.02% | 946 |
|
|
2024
Q2 | $10.3M | Sell |
150,963
-17,637
| -10% | -$1.28M | 0.02% | 898 |
|
|
2024
Q1 | $13.6M | Sell |
168,600
-21,065
| -11% | -$1.68M | 0.02% | 833 |
|
|
2023
Q4 | $15M | Buy |
189,665
+13,765
| +8% | +$941K | 0.02% | 749 |
|
|
2023
Q3 | $11.9M | Sell |
175,900
-33,465
| -16% | -$2.29M | 0.02% | 817 |
|
|
2023
Q2 | $13.2M | Sell |
209,365
-37,100
| -15% | -$2.01M | 0.02% | 886 |
|
|
2023
Q1 | $12M | Sell |
246,465
-30,500
| -11% | -$1.56M | 0.02% | 1001 |
|
|
2022
Q4 | $12.7M | Sell |
276,965
-1,700
| -0.6% | -$81.6K | 0.02% | 961 |
|
|
2022
Q3 | $11.4M | Sell |
278,665
-64,900
| -19% | -$2.77M | 0.02% | 962 |
|
|
2022
Q2 | $13.3M | Buy |
343,565
+74,000
| +27% | +$3.02M | 0.02% | 955 |
|
|
2022
Q1 | $11.6M | Buy |
269,565
+66,700
| +33% | +$3.51M | 0.01% | 1031 |
|
|
2021
Q4 | $13.5M | Sell |
202,865
-86,139
| -30% | -$6.15M | 0.02% | 919 |
|
|
2021
Q3 | $20.1M | Sell |
289,004
-49,300
| -15% | -$3.55M | 0.03% | 672 |
|
|
2021
Q2 | $25.8M | Sell |
338,304
-96,500
| -22% | -$7.97M | 0.03% | 602 |
|
|
2021
Q1 | $39.8M | Sell |
434,804
-93,996
| -18% | -$8.63M | 0.05% | 446 |
|
|
2020
Q4 | $38M | Sell |
528,800
-128,704
| -20% | -$8.59M | 0.04% | 456 |
|
|
2020
Q3 | $42.8M | Sell |
657,504
-52,196
| -7% | -$3.08M | 0.04% | 429 |
|
|
2020
Q2 | $34.1M | Buy |
709,700
+83,296
| +13% | +$3.7M | 0.03% | 557 |
|
|
2020
Q1 | $26.9M | Buy |
626,404
+18,400
| +3% | +$920K | 0.03% | 632 |
|
|
2019
Q4 | $30.7M | Buy |
608,004
+234,600
| +63% | +$11.8M | 0.02% | 768 |
|
|
2019
Q3 | $17.2M | Buy |
373,404
+69,004
| +23% | +$2.89M | 0.01% | 1053 |
|
|
2019
Q2 | $12.3M | Buy |
304,400
+90,347
| +42% | +$3.51M | 0.01% | 1266 |
|
|
2019
Q1 | $8.69M | Buy |
214,053
+135,853
| +174% | +$5.18M | 0.01% | 1456 |
|
|
2018
Q4 | $2.78M | Sell |
78,200
-117,100
| -60% | -$4.27M | ﹤0.01% | 2062 |
|
|
2018
Q3 | $8.91M | Sell |
195,300
-165,600
| -46% | -$7.16M | 0.01% | 1436 |
|
|
2018
Q2 | $13.5M | Sell |
360,900
-224,600
| -38% | -$8.34M | 0.01% | 1177 |
|
|
2018
Q1 | $19.8M | Sell |
585,500
-303,453
| -34% | -$10.5M | 0.02% | 938 |
|
|
2017
Q4 | $29.3M | Sell |
888,953
-223,900
| -20% | -$7.15M | 0.03% | 704 |
|
|
2017
Q3 | $34.7M | Buy |
1,112,853
+63,553
| +6% | +$1.92M | 0.04% | 596 |
|
|
2017
Q2 | $37.4M | Sell |
1,049,300
-134,527
| -11% | -$4.75M | 0.05% | 502 |
|
|
2017
Q1 | $48.8M | Sell |
1,183,827
-80,773
| -6% | -$3.38M | 0.07% | 362 |
|
|
2016
Q4 | $52.7M | Buy |
1,264,600
+293,500
| +30% | +$12.1M | 0.08% | 307 |
|
|
2016
Q3 | $36.1M | Buy |
971,100
+67,747
| +7% | +$2.48M | 0.06% | 402 |
|
|
2016
Q2 | $28.5M | Sell |
903,353
-135,800
| -13% | -$3.91M | 0.05% | 480 |
|
|
2016
Q1 | $29.7M | Buy |
1,039,153
+88,300
| +9% | +$2.06M | 0.06% | 443 |
|
|
2015
Q4 | $24.2M | Buy |
950,853
+473,700
| +99% | +$11.4M | 0.05% | 443 |
|
|
2015
Q3 | $8.76M | Buy |
477,153
+180,653
| +61% | +$3.31M | 0.02% | 1022 |
|
|
2015
Q2 | $6.04M | Buy |
296,500
+80,100
| +37% | +$1.45M | 0.01% | 1320 |
|
|
2015
Q1 | $3.55M | Buy |
216,400
+42,200
| +24% | +$652K | 0.01% | 1579 |
|
|
2014
Q4 | $2.83M | Buy |
174,200
+16,300
| +10% | +$241K | 0.01% | 1610 |
|
|
2014
Q3 | $2.16M | Buy |
157,900
+10,100
| +7% | +$155K | 0.01% | 1630 |
|
|
2014
Q2 | $2.29M | Sell |
147,800
-29,284
| -17% | -$485K | 0.01% | 1658 |
|
|
2014
Q1 | $3.34M | Buy |
177,084
+90,684
| +105% | +$1.64M | 0.01% | 1483 |
|
|
2013
Q4 | $1.61M | Buy |
86,400
+6,000
| +7% | +$98.3K | ﹤0.01% | 1866 |
|
|
2013
Q3 | $1.15M | Sell |
80,400
-31,900
| -28% | -$458K | ﹤0.01% | 1948 |
|
|
2013
Q2 | $1.64M | Buy |
+112,300
| New | +$1.9M | ﹤0.01% | 1687 |
|
Other funds holding ROCK
VPM
VCM
Jim Simons's ROCK Position: Q1 2026 in Review
Jim Simons reduced its Gibraltar Industries (ROCK) stake by 60% in Q1 2026, selling an estimated $1.14M and leaving 15,500 shares worth $618K. The position accounts for ﹤0.01% of the portfolio, ranked #2512.
Jim Simons first reported a position in ROCK in Q2 2013 and has held it in 52 quarters since. The position peaked at $52.7M in Q4 2016. 228 funds tracked by Wall St. Rank hold ROCK as of Q1 2026.
- Jim Simons held 15,500 shares of Gibraltar Industries worth $618K as of Q1 2026.
- Jim Simons sold 23,600 Gibraltar Industries shares in Q1 2026, an estimated $1.14M.
- Gibraltar Industries made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #2512 holding.
- Jim Simons first reported a position in Gibraltar Industries in Q2 2013 and has held it in 52 quarters since.
- Jim Simons's Gibraltar Industries position peaked at $52.7M in Q4 2016.
- 228 funds tracked by Wall St. Rank held Gibraltar Industries as of Q1 2026.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.