ROCK
Gibraltar Industries, Inc. · Industrials · Manufacturing - Metal Fabrication
Momentum inputs (comparable managers):
holder breadth -11.8% ·
share flow +13.0% ·
net new positions -13.3%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| 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 ✦ | 2.01M | +30.6% | $118.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | Wellington Management ✦ | 2.01M | +30.6% | $118.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Wellington Management ✦ | 2.01M | +30.6% | $118.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Wellington Management ✦ | 2.01M | +30.6% | $118.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Wellington Management ✦ | 2.01M | +30.6% | $118.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Wellington Management ✦ | 2.01M | +30.6% | $118.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | State Street Global Advisors ✦ (passive) | 1.28M | -3.7% | $75.24M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 872.50K | +2.1% | $51.19M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Geode Capital Management ✦ (passive) | 872.50K | +2.1% | $51.19M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | Arrowstreet Capital ✦ | 381.53K | +195.7% | $22.38M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | D. E. Shaw & Co. ✦ | 353.40K | +84.0% | $20.73M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | D. E. Shaw & Co. ✦ | 353.40K | +84.0% | $20.73M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | Renaissance Technologies ✦ | 250.37K | -3.9% | $14.69M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 119.48K | +14.7% | $7.01M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 119.48K | +14.7% | $7.01M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | PRIMECAP Management ✦ | 102.30K | 0.0% | $6.00M | 0.0% | Held | 4 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 90.90K | +310.8% | $5.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 90.90K | +310.8% | $5.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 90.90K | +310.8% | $5.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 90.90K | +310.8% | $5.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 90.90K | +310.8% | $5.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 22 | GAMCO Investors ✦ | 89.92K | +3.1% | $5.27M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 23 | Point72 Asset Management ✦ | 68.13K | -64.2% | $4.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 24 | Millennium Management ✦ | 50.04K | -67.0% | $2.94M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 25 | T. Rowe Price ✦ | 28.16K | +3.7% | $1.65M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 26 | Marshall Wace ✦ | 20.75K | -21.2% | $1.22M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 27 | Marshall Wace ✦ | 20.75K | -21.2% | $1.22M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 28 | Gotham Asset Management ✦ | 8.41K | +15.3% | $493,565 | 0.0% | ▲ Add | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Norges Bank | $1.57M | was 0.0% |
| Two Sigma Investments | $1.08M | was 0.0% |
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.