ROCK — GIBRALTAR INDUSTRIES, INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Measured signals that fired on ROCK
| date | signal | measured base rate |
|---|---|---|
| 2026-08-04 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-30 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-25 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-17 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-05-27 | Cluster buy: three or more insiders insider | +0.63% over 21 days · t = 1.84 · n = 3,050 not distinguishable from its control group |
| 2026-05-26 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-19 | Lovechio Joseph A VP and CFO | Shares withheld for tax | 638 | 47.85 | 30.5K |
| 2026-05-26 | Bosway William T President and CEO | Open-market purchase | 19.7K | 37.44 | 738.8K |
| 2026-05-21 | Bolanowski Katherine General Counsel, VP, Secretary | Open-market purchase | 1.3K | 35.63 | 44.8K |
| 2026-05-21 | Bolanowski Katherine General Counsel, VP, Secretary | Open-market purchase | 144 | 35.66 | 5.1K |
| 2026-05-20 | Lovechio Joseph A VP and CFO | Open-market purchase | 1.0K | 34.62 | 34.6K |
| 2026-05-07 | METCALF JAMES S Director | Grant or award | 3.1K | 37.59 | 115.0K |
| 2026-05-07 | Myers Linda Kristine Director | Grant or award | 3.1K | 37.59 | 115.0K |
| 2026-05-07 | Pope Atlee Valentine Director | Grant or award | 3.1K | 37.59 | 115.0K |
| 2026-05-07 | Shah Manish H Director | Grant or award | 3.1K | 37.59 | 115.0K |
| 2026-05-07 | Barberio Mark G Director | Grant or award | 3.1K | 37.59 | 115.0K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 201.3M | 5.0M |
| FMR LLC | 176.7M | 4.4M |
| ALLIANCEBERNSTEIN L.P. | 108.7M | 2.2M |
| DIMENSIONAL FUND ADVISORS LP | 68.0M | 1.7M |
| STATE STREET CORP | 53.7M | 1.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 52.8M | 1.3M |
| VANGUARD CAPITAL MANAGEMENT LLC | 52.7M | 1.3M |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 46.6M | 1.2M |
| GEODE CAPITAL MANAGEMENT, LLC | 31.0M | 777.6K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 29.6M | 742.3K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 10-Q | 2026-08-05 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-05 | 2026-08-05 | on EDGAR ↗ |
| 8-K | 2026-07-16 | 2026-07-16 | on EDGAR ↗ |
| 4 | 2026-07-02 | 2026-07-02 | on EDGAR ↗ |
| 4 | 2026-07-01 | 2026-06-30 | on EDGAR ↗ |
| 4 | 2026-07-01 | 2026-06-30 | on EDGAR ↗ |
| 4 | 2026-07-01 | 2026-06-30 | on EDGAR ↗ |
| 4 | 2026-07-01 | 2026-06-30 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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