Gibraltar Industries, Inc.
US ˙ NasdaqGS ˙ US3746891072

SecurityROCK / Gibraltar Industries, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership1,345,665 shares
Latest Disclosed Value $ 53,651,664
State Street Corp reports 1.28% decrease in ownership of ROCK / Gibraltar Industries, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,345,665 shares of Gibraltar Industries, Inc. (US:ROCK) valued at $53,651,664 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,363,153 shares of Gibraltar Industries, Inc.. This represents a change in shares of -1.28% during the quarter. The current value of the position is $50,637,374 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F GIBRALTAR INDS COM 374689107 1,345,665 -17,488 -1.28 53,652 -20.39 0.0019
2026-02-13 2025-12-31 13F GIBRALTAR INDS COM 374689107 1,363,153 74,427 5.78 67,394 -16.73 0.0023
2025-11-14 2025-09-30 13F GIBRALTAR INDS COM 374689107 1,288,726 915 0.07 80,932 6.52 0.0028
2025-08-14 2025-06-30 13F GIBRALTAR INDS COM 374689107 1,287,811 5,207 0.41 75,981 0.99 0.0028
2025-05-15 2025-03-31 13F GIBRALTAR INDS COM 374689107 1,282,604 -49,253 -3.70 75,238 -4.09 0.0031
2025-02-14 2024-12-31 13F GIBRALTAR INDS COM 374689107 1,331,857 53,574 4.19 78,446 -12.24 0.0031
2024-11-14 2024-09-30 13F GIBRALTAR INDS COM 374689107 1,278,283 56,008 4.58 89,390 6.69 0.0036
2024-08-14 2024-06-30 13F GIBRALTAR INDS COM 374689107 1,222,275 69,516 6.03 83,787 -9.74 0.0037
2024-05-15 2024-03-31 13F GIBRALTAR INDS COM 374689107 1,152,759 22,806 2.02 92,832 4.02 0.0041
2024-02-14 2023-12-31 13F GIBRALTAR INDS COM 374689107 1,129,953 -18,901 -1.65 89,244 15.06 0.0043
2023-11-14 2023-09-30 13F GIBRALTAR INDS COM 374689107 1,148,854 -10,378 -0.90 77,559 6.34 0.0043
2023-08-14 2023-06-30 13F GIBRALTAR INDS COM 374689107 1,159,232 -80,817 -6.52 72,939 21.28 0.0038
2023-05-15 2023-03-31 13F GIBRALTAR INDS COM 374689107 1,240,049 -14,023 -1.12 60,142 4.53 0.0034
2023-05-15 2022-12-31 13F/A-99 GIBRALTAR INDS COM 374689107 1,254,072 11,840 0.95 57,537 13.16 0.0034
2023-05-15 2022-12-31 13F GIBRALTAR INDS COM 374689107 1,254,072 11,840 57,537 0.0034
2022-11-15 2022-09-30 13F GIBRALTAR INDS COM 374689107 1,242,232 -13,833 -1.10 50,845 4.46 0.0032
2022-08-15 2022-06-30 13F GIBRALTAR INDS COM 374689107 1,256,065 141,780 12.72 48,673 1.70 0.0029
2022-05-16 2022-03-31 13F GIBRALTAR INDS COM 374689107 1,114,285 42,971 4.01 47,859 -33.00 0.0024
2022-02-14 2021-12-31 13F GIBRALTAR INDS COM 374689107 1,071,314 54,179 5.33 71,435 0.84 0.0034
2021-11-15 2021-09-30 13F GIBRALTAR INDS COM 374689107 1,017,135 11,854 1.18 70,843 -7.65 0.0037
2021-08-16 2021-06-30 13F GIBRALTAR INDS COM 374689107 1,005,281 27,205 2.78 76,713 -14.29 0.0040
2021-07-09 2021-03-31 13F/A-1 GIBRALTAR INDS COM 374689107 978,076 18,095 1.88 89,504 29.60 0.0051
2021-05-17 2021-03-31 13F GIBRALTAR INDS COM 374689107 978,076 18,095 89,504 0.0051
2021-02-16 2020-12-31 13F GIBRALTAR INDS COM 374689107 959,981 -22,055 -2.25 69,061 7.96 0.0042
2020-11-10 2020-09-30 13F GIBRALTAR INDS COM 374689107 982,036 -34,670 -3.41 63,970 31.05 0.0044
2020-08-14 2020-06-30 13F GIBRALTAR INDS COM 374689107 1,016,706 6,144 0.61 48,812 12.54 0.0035
2020-06-19 2020-03-31 13F/A-1 GIBRALTAR INDS COM 374689107 1,010,562 70,464 7.50 43,373 -8.53 0.0038
2020-05-11 2020-03-31 13F GIBRALTAR INDS COM 374689107 1,010,562 70,464 43,373 3,809.0227
2020-02-06 2019-12-31 13F GIBRALTAR INDS COM 374689107 940,098 4,605 0.49 47,419 10.34 0.0032
2019-11-14 2019-09-30 13F GIBRALTAR INDS COM 374689107 935,493 6,945 0.75 42,977 14.68 0.0032
2019-08-14 2019-06-30 13F GIBRALTAR INDS COM 374689107 928,548 23,914 2.64 37,476 2.01 0.0028
2019-05-15 2019-03-31 13F GIBRALTAR INDS COM 374689107 904,634 13,929 1.56 36,737 15.89 0.0029
2019-02-12 2018-12-31 13F GIBRALTAR INDS COM 374689107 890,705 -2,659 -0.30 31,700 -22.19 0.0029
2018-11-09 2018-09-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 893,364 89,314 11.11 40,741 35.08 0.0031
2018-08-14 2018-06-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 804,050 6,360 0.80 30,161 11.69 0.0025
2018-05-15 2018-03-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 797,690 17,372 2.23 27,004 4.84 0.0023
2018-02-14 2017-12-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 780,318 19,727 2.59 25,757 8.72 0.0021
2017-11-14 2017-09-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 760,591 -14,299 -1.85 23,691 -14.25 0.0020
2017-08-14 2017-06-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 774,890 -2,565 -0.33 27,628 -13.75 0.0024
2017-05-15 2017-03-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 777,455 29,059 3.88 32,034 2.77 0.0029
2017-02-09 2016-12-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 748,396 38,935 5.49 31,171 18.26 0.0029
2017-01-13 2016-09-30 13F/A-1 GIBRALTAR INDUSTRIES Common equity shares 374689107 709,461 47,457 7.17 26,357 26.13 0.0027
2016-11-14 2016-09-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 709,461 26,357
2016-08-12 2016-06-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 662,004 11,373 1.75 20,897 12.31 0.0022
2016-05-20 2016-03-31 13F/A-1 GIBRALTAR INDUSTRIES Common equity shares 374689107 650,631 23,027 3.67 18,606 16.54 0.0020
2016-05-12 2016-03-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 650,631 18,606
2016-02-16 2015-12-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 627,604 54,135 9.44 15,966 51.71 0.0017
2015-11-16 2015-09-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 573,469 -29,869 -4.95 10,524 -14.36 0.0012
2015-08-13 2015-06-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 603,338 7,733 1.30 12,289 25.77 0.0013
2015-05-15 2015-03-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 595,605 10,088 1.72 9,771 2.59 0.0010
2015-02-11 2014-12-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 585,517 -7,070 -1.19 9,524 17.44 0.0009
2014-11-12 2014-09-30 13F/A-1 GIBRALTAR INDUSTRIES Common equity shares 374689107 592,587 -10,070 -1.67 8,110 -13.26 0.0009
2014-11-10 2014-09-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 592,587 8,110
2014-08-12 2014-06-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 602,657 -10,188 -1.66 9,350 -19.14 0.0010
2014-05-15 2014-03-31 13F/A-1 GIBRALTAR INDUSTRIES Common equity shares 374689107 612,845 -2,338 -0.38 11,563 1.13 0.0013
2014-05-13 2014-03-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 613,245 11,571
2014-02-06 2013-12-31 13F/A-1 GIBRALTAR INDUSTRIES Common equity shares 374689107 615,183 7,089 1.17 11,434 31.80 0.0013
2014-02-06 2013-12-31 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 609,133 9,696
2013-11-12 2013-09-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 608,094 -7,729 -1.26 8,675 -3.23 0.0011
2013-08-08 2013-06-30 13F GIBRALTAR INDUSTRIES Common equity shares 374689107 615,823 615,823 8,965 0.0012
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.