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ROCK — GIBRALTAR INDS INC

Reported value held$824.15M
Funds holding (latest)43
SectorIndustrials
Funds holding (Q2 2026)33
Institutional value$641.87M · 14.28M sh
New / Add / Cut / Exit2 / 19 / 10 / 4
Top-5 / Top-10 concentration77.6% / 87.6%
Institutional holdings change Accumulating +3.6% (+501.56K sh)
Institutional value change Up +17.2%

As of Q2 2026, 33 SEC-registered investment managers reported holding ROCK (GIBRALTAR INDS INC) in their latest 13F filings, with a combined reported value of $641.87M across 14.28M shares. That is +3.6% by share count (+501.56K shares) versus the previous quarter, while reported value moved +17.2%. Ownership is concentrated: the five largest holders account for 77.6% of reported value and the top ten for 87.6%.

Compared with the prior quarter, 2 opened new positions, 19 added to existing stakes, 10 trimmed, 4 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

ROCK is classified in the Industrials sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
BlackRock Inc history Q2 2026 4.92M $221.89M 0.00% Reduce
Fidelity Management & Research (FMR) history Q2 2026 4.45M $200.66M 0.01% Hold
Vanguard Group history Q4 2025 2.86M $141.58M 0.00% Reduce
Geode Capital Management history Q2 2026 822.87K $37.12M 0.00% Add
Wellington Management Group history Q3 2025 416.96K $26.19M 0.01% Reduce
Charles Schwab Investment Management history Q2 2026 445.33K $20.08M 0.00% Add
Royce & Associates history Q2 2026 402.37K $18.15M 0.15% Add
Morgan Stanley history Q2 2026 357.21K $16.11M 0.00% Reduce
Northern Trust Corp history Q2 2026 353.25K $15.93M 0.00% Add
UBS Group AG history Q2 2026 254.65K $11.48M 0.00% Add
Balyasny Asset Management history Q2 2026 243.40K $10.98M 0.01% Add
D. E. Shaw & Co history Q2 2026 224.75K $10.14M 0.01% Reduce
Citadel Advisors history Q2 2026 201.81K $9.10M 0.00% Add
Principal Global Investors history Q2 2026 189.42K $8.54M 0.00% Add
BNY Mellon history Q2 2026 169.63K $7.65M 0.00% Add
AQR Capital Management history Q2 2026 159.59K $7.20M 0.00% Add
Invesco Ltd history Q2 2026 144.41K $6.51M 0.00% Reduce
Bank of America Corp history Q2 2026 133.86K $6.04M 0.00% Reduce
Point72 Asset Management history Q4 2025 118.19K $5.84M 0.01% Add
Goldman Sachs Group history Q2 2026 125.12K $5.64M 0.00% Reduce

View all 43 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 5.40M 5.50M 5.23M 5.27M 5.23M 4.97M 5.05M 4.92M
Fidelity Management & Research (FMR) 328.16K 263.76K 1.67K 2.31K 2.33K 2.40K 2.44K 2.50K 2.52K 2.63K 2.99K 41.20K 726.67K 816.12K 992.85K 2.70M 3.12M 3.70M 4.43M 4.45M
Geode Capital Management 571.74K 576.35K 584.11K 603.90K 589.29K 598.33K 617.87K 625.05K 645.02K 728.13K 761.03K 805.98K 838.93K 854.82K 872.50K 863.98K 736.81K 737.59K 777.63K 822.87K
Charles Schwab Investment Management 288.19K 299.54K 325.11K 353.08K 371.15K 382.31K 386.69K 374.22K 372.65K 372.94K 375.06K 391.17K 410.78K 431.42K 454.72K 442.72K 449.86K 440.43K 440.48K 445.33K
Royce & Associates 348.11K 315.72K 287.42K 343.22K 335.03K 288.29K 228.37K 192.21K 180.63K 159.44K 160.51K 156.71K 152.20K 157.32K 140.06K 117.47K 134.51K 196.73K 288.54K 402.37K
Morgan Stanley 220.07K 170.49K 283.14K 442.13K 376.32K 337.64K 301.10K 294.16K 370.88K 780.55K 576.31K 392.62K 518.33K 369.16K 408.25K 425.90K 353.48K 434.23K 362.28K 357.21K
Northern Trust Corp 399.62K 390.88K 381.06K 377.62K 366.66K 373.31K 372.90K 381.27K 377.07K 370.60K 352.09K 341.20K 334.47K 366.99K 367.32K 352.11K 352.16K 322.18K 333.90K 353.25K
UBS Group AG 6.48K 20.19K 13.20K 4.93K 8.15K 11.62K 18.91K 35.74K 19.58K 26.63K 31.89K 87.84K 108.37K 187.35K 316.85K 322.01K 253.83K 66.36K 197.33K 254.65K
Balyasny Asset Management — 3.16K — — — — — — — — — 9.00K 8.75K 34.90K 12.59K — 11.86K 40.60K 116.78K 243.40K
D. E. Shaw & Co 71.98K 104.59K 296.75K 262.44K 186.15K 85.94K 77.14K 70.04K 69.56K 65.71K 34.13K 111.92K 109.13K 192.10K 353.40K 358.49K 325.49K 319.84K 249.67K 224.75K
Citadel Advisors 20.48K 51.73K 103.40K 119.00K 202.83K 104.93K 150.06K 77.55K 56.88K 42.97K 53.07K 45.57K 110.95K 158.68K 167.88K 118.99K 194.15K 93.32K 118.45K 201.81K
Principal Global Investors 226.43K 221.23K 215.57K 202.25K 194.86K 195.39K 192.81K 176.98K 169.17K 166.06K 168.58K 163.45K 157.26K 162.49K 167.69K 168.68K 163.04K 171.67K 186.01K 189.42K
BNY Mellon 780.00K 791.04K 738.18K 691.21K 546.29K 473.11K 467.19K 510.68K 472.07K 429.59K 426.98K 415.86K 397.99K 381.69K 239.87K 203.15K 199.44K 182.15K 164.30K 169.63K
AQR Capital Management 14.23K 5.70K 6.08K 10.62K 6.90K 4.69K 4.69K 4.78K 5.11K 6.19K 19.73K 23.43K 23.44K 22.13K 90.90K 97.84K 94.56K 37.42K 96.03K 159.59K
Invesco Ltd 94.15K 82.22K 104.89K 118.34K 119.59K 119.87K 131.19K 142.37K 245.22K 255.79K 239.31K 184.33K 157.99K 148.72K 250.87K 137.04K 139.40K 147.07K 158.33K 144.41K
Bank of America Corp 33.91K 54.87K 55.68K 27.38K 28.12K 36.69K 47.08K 34.12K 36.10K 30.26K 64.94K 50.55K 44.83K 44.29K 45.96K 103.78K 127.97K 158.99K 139.27K 133.86K
Goldman Sachs Group 439.50K 57.54K 145.43K 98.52K 91.99K 83.40K 93.30K 133.22K 116.36K 132.03K 128.88K 212.69K 201.47K 153.70K 194.36K 101.62K 165.90K 180.17K 194.71K 125.12K
PSP Investments 65.95K 66.56K 61.00K 60.70K 57.98K 56.34K 54.47K 53.98K 37.60K 63.16K 62.39K 67.00K 64.70K 75.62K 96.20K 100.50K 115.15K 102.29K 105.73K 101.91K
Prudential Financial 39.92K 39.04K 37.30K 36.11K 34.76K 34.62K 33.71K 41.03K 50.29K 45.33K 43.62K 41.53K 34.32K 31.02K 29.82K 31.22K 29.81K 27.77K 36.53K 75.39K
Renaissance Technologies 289.00K 202.87K 269.56K 343.56K 278.67K 276.96K 246.47K 209.37K 175.90K 189.66K 168.60K 150.96K 170.47K 260.46K 250.37K 209.97K 104.60K 39.10K 15.50K 66.67K

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