GIBRALTAR INDUSTRIES INC (ROCK) Institutional Ownership and Insiders Activity

GIBRALTAR INDUSTRIES INC (ROCK) is widely held by institutional investors, with 1 tracked firm reporting positions valued at approximately $617,985 based on SEC Form 13F filings for the quarter ended March 31, 2026.

Renaissance Technologies LLC is the largest disclosed holder, reporting approximately $617,985 in ROCK holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Renaissance Technologies LLC representing the majority of disclosed value.