ROCK
Gibraltar Industries, Inc. · Industrials · Manufacturing - Metal Fabrication
Momentum inputs (comparable managers):
holder breadth +6.2% ·
share flow +13.3% ·
net new positions +5.9%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 88 | +7 | 22.89M | $1.02B | +13 | −6 |
| Q1 2026 | 84 | -11 | 22.96M | $936.16M | +4 | −15 |
| Q4 2025 | 95 | 0 | 24.47M | $1.21B | +1 | −1 |
| Q3 2025 | 20 | 0 | 15.60M | $979.84M | +1 | −1 |
| Q2 2025 | 17 | -1 | 15.20M | $896.80M | — | −1 |
| Q1 2025 | 15 | -2 | 5.73M | $336.17M | — | −2 |
| Q4 2024 | 17 | +1 | 5.07M | $298.84M | +1 | — |
| Q3 2024 | 15 | -1 | 3.14M | $219.93M | — | −1 |
| Q2 2024 | 16 | — | 3.35M | $229.52M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 1.54M | +34.7% | $90.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | Wellington Management ✦ | 1.54M | +34.7% | $90.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | Wellington Management ✦ | 1.54M | +34.7% | $90.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Wellington Management ✦ | 1.54M | +34.7% | $90.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | State Street Global Advisors ✦ (passive) | 1.33M | — | $78.45M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 854.82K | +1.9% | $50.36M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 854.82K | +1.9% | $50.36M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Renaissance Technologies ✦ | 260.46K | +52.8% | $15.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 192.10K | +76.0% | $11.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 192.10K | +76.0% | $11.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Point72 Asset Management ✦ | 190.59K | -9.3% | $11.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | Millennium Management ✦ | 151.86K | +9.6% | $8.94M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | Arrowstreet Capital ✦ | 129.04K | +124.4% | $7.60M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 104.18K | +6.6% | $6.14M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 104.18K | +6.6% | $6.14M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | PRIMECAP Management ✦ | 102.30K | 0.0% | $6.03M | 0.0% | Held | 3 | SEC ↗ |
| 17 | GAMCO Investors ✦ | 87.22K | -2.7% | $5.14M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 18 | T. Rowe Price ✦ | 27.16K | -49.6% | $1.60M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | Norges Bank ✦ (passive) | 26.68K | -42.9% | $1.57M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Marshall Wace ✦ | 26.34K | New | $1.55M | 0.0% | New | 1 | SEC ↗ |
| 21 | Marshall Wace ✦ | 26.34K | New | $1.55M | 0.0% | New | 1 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 22.13K | -5.6% | $1.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 22.13K | -5.6% | $1.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 22.13K | -5.6% | $1.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 25 | Two Sigma Investments ✦ | 18.37K | -66.5% | $1.08M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 26 | Gotham Asset Management ✦ | 7.30K | -5.7% | $429,734 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $1.55M | 0.0% |
| Marshall Wace | $1.55M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 224 holders, 30.46M shares, $1.20B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.