GIBRALTAR INDS INC (ROCK): Institutional Ownership
Hedge funds and institutional managers reporting a position in ROCK · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
18
13F filers
Aggregate Value
$37.0M
Across holders
Last Price
$44.20
2026-06-26
Sector
Industrials
GICS
Holder activity9 new6 added2 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Ancora Advisors, LLC CIK 0001446114 | Hedge Fund | 120K | $5.9M | 16.0% | 0.1% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 118K | $4.7M | 12.8% | 0.0% | Added | +$4.0M | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 117K | $4.7M | 12.6% | 0.0% | Added | +$3.0M | Q1 2026 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 106K | $4.2M | 11.4% | 0.0% | Added | +$579K | Q1 2026 |
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 96K | $3.8M | 10.3% | 0.0% | Unchanged | +$0 | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 95K | $3.8M | 10.2% | 0.0% | Added | +$3.8M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 57K | $2.8M | 7.6% | 0.0% | New | — | Q4 2025 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 38K | $1.9M | 5.0% | 0.0% | New | — | Q4 2025 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 31K | $1.2M | 3.3% | 0.0% | New | — | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 11K | $690K | 1.9% | 0.0% | New | — | Q3 2025 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 11K | $684K | 1.8% | 0.0% | New | — | Q3 2025 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 13K | $651K | 1.8% | 0.0% | New | — | Q4 2025 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 16K | $618K | 1.7% | 0.0% | Reduced | $-941K | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 10K | $418K | 1.1% | 0.0% | New | — | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 7K | $281K | 0.8% | 0.0% | Added | +$35K | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 6K | $247K | 0.7% | 0.0% | Added | +$30K | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 6K | $231K | 0.6% | 0.0% | Reduced | $-48K | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 5K | $205K | 0.6% | 0.0% | New | — | Q1 2026 |
New
Hedge Fund
$5.9M· 16.0% of total· 0.1% port· 120K sh· — QoQ· Q4 2025
Added
Hedge Fund
$4.7M· 12.8% of total· 0.0% port· 118K sh· +$4.0M QoQ· Q1 2026
Added
Hedge Fund
$4.7M· 12.6% of total· 0.0% port· 117K sh· +$3.0M QoQ· Q1 2026
Added
Institutional Manager
$4.2M· 11.4% of total· 0.0% port· 106K sh· +$579K QoQ· Q1 2026
Unchanged
Institutional Manager
$3.8M· 10.3% of total· 0.0% port· 96K sh· +$0 QoQ· Q1 2026
Added
Hedge Fund
$3.8M· 10.2% of total· 0.0% port· 95K sh· +$3.8M QoQ· Q1 2026
New
Hedge Fund
$2.8M· 7.6% of total· 0.0% port· 57K sh· — QoQ· Q4 2025
New
Hedge Fund
$1.9M· 5.0% of total· 0.0% port· 38K sh· — QoQ· Q4 2025
New
Hedge Fund
$1.2M· 3.3% of total· 0.0% port· 31K sh· — QoQ· Q1 2026
New
Hedge Fund
$690K· 1.9% of total· 0.0% port· 11K sh· — QoQ· Q3 2025
New
Hedge Fund
$684K· 1.8% of total· 0.0% port· 11K sh· — QoQ· Q3 2025
New
Hedge Fund
$651K· 1.8% of total· 0.0% port· 13K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$618K· 1.7% of total· 0.0% port· 16K sh· $-941K QoQ· Q1 2026
New
Hedge Fund
$418K· 1.1% of total· 0.0% port· 10K sh· — QoQ· Q1 2026
Added
Hedge Fund
$281K· 0.8% of total· 0.0% port· 7K sh· +$35K QoQ· Q1 2026
Added
Hedge Fund
$247K· 0.7% of total· 0.0% port· 6K sh· +$30K QoQ· Q1 2026
Reduced
Hedge Fund
$231K· 0.6% of total· 0.0% port· 6K sh· $-48K QoQ· Q1 2026
New
Hedge Fund
$205K· 0.6% of total· 0.0% port· 5K sh· — QoQ· Q1 2026