지브롤터 산업, Inc.
US ˙ NasdaqGS ˙ US3746891072

SecurityROCK / Gibraltar Industries, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership52,243 shares
Latest Disclosed Value $ 3,082,337
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series ownership in ROCK / Gibraltar Industries, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 52,243 shares of Gibraltar Industries, Inc. (US:ROCK) valued at $3,082,337 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 52,243 shares of Gibraltar Industries, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,931,424 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.

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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)
2025-08-26 2025-06-30 NP Gibraltar Industries EC US3746891072 52,243 0 0.00 3,082 0.59 0.0692
2025-05-28 2025-03-31 NP Gibraltar Industries EC US3746891072 52,243 671 1.30 3,065 0.89 0.0735
2025-02-25 2024-12-31 NP Gibraltar Industries EC US3746891072 51,572 -8,279 -13.83 3,038 -27.43 0.0663
2024-11-26 2024-09-30 NP Gibraltar Industries EC US3746891072 59,851 2,187 3.79 4,185 5.90 0.0792
2024-08-26 2024-06-30 NP Gibraltar Industries EC US3746891072 57,664 3,666 6.79 3,953 -9.11 0.0805
2024-05-28 2024-03-31 NP Gibraltar Industries EC US3746891072 53,998 -1,693 -3.04 4,348 -1.14 0.0907
2024-02-26 2023-12-31 NP Gibraltar Industries EC US3746891072 55,691 3,827 7.38 4,398 25.62 0.0939
2023-11-28 2023-09-30 NP Gibraltar Industries EC US3746891072 51,864 -1,637 -3.06 3,501 4.01 0.0913
2023-08-25 2023-06-30 NP Gibraltar Industries EC US3746891072 53,501 3,745 7.53 3,366 39.49 0.0798
2023-05-26 2023-03-31 NP Gibraltar Industries EC US3746891072 49,756 2,277 4.80 2,413 10.79 0.0643
2023-02-24 2022-12-31 NP Gibraltar Industries EC US3746891072 47,479 -4,896 -9.35 2,178 1.63 0.0599
2022-11-25 2022-09-30 NP Gibraltar Industries EC US3746891072 52,375 1,218 2.38 2,144 8.12 0.0614
2022-08-25 2022-06-30 NP Gibraltar Industries EC US3746891072 51,157 0 0.00 1,982 -9.79 0.0547
2022-05-26 2022-03-31 NP Gibraltar Industries EC US3746891072 51,157 1,025 2.04 2,197 -34.26 0.0512
2022-02-25 2021-12-31 NP Gibraltar Industries EC US3746891072 50,132 883 1.79 3,343 -2.57 0.0725
2021-11-24 2021-09-30 NP Gibraltar Industries EC US3746891072 49,249 -2,297 -4.46 3,430 -12.79 0.0756
2021-08-26 2021-06-30 NP Gibraltar Industries EC US3746891072 51,546 1,968 3.97 3,933 -13.29 0.0844
2021-05-27 2021-03-31 NP Gibraltar Industries EC US3746891072 49,578 -1,723 -3.36 4,537 22.93 0.1029
2021-02-25 2020-12-31 NP Gibraltar Industries EC US3746891072 51,301 -1,640 -3.10 3,691 7.02 0.0946
2020-11-25 2020-09-30 NP Gibraltar Industries EC US3746891072 52,941 -2,907 -5.21 3,449 28.61 0.1107
2020-08-27 2020-06-30 NP Gibraltar Industries EC US3746891072 55,848 1,718 3.17 2,681 15.41 0.0876
2020-06-01 2020-03-31 NP Gibraltar Industries EC US3746891072 54,130 4,283 8.59 2,323 -7.60 0.0950
2020-02-27 2019-12-31 NP Gibraltar Industries EC 374689107 49,847 631 1.28 2,514 11.24 0.0756
2019-11-27 2019-09-30 NP Gibraltar Industries EC US3746891072 49,216 49,216 2,261 0.0747
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.