InvestorLens

ROCK — GIBRALTAR INDS INC

Public company

Sign in to save4 tracked investors reported this
For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying ROCK?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence
95
Institutional Conviction
Net accumulation · 1 buying vs 0 selling last quarter
63
Macro Tailwind
Macro conditions are mixed for this sector
52
Why? — Evidence & Confidence ▾

Of 1 tracked investors who changed their ROCK position last quarter, 1 bought and 0 sold (100% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 52/100 in a Squeeze regime).

Supporting evidence
  • +1 tracked investor added or increased positions last quarter (Ray Dalio)
  • +4 tracked investors reported holding ROCK at their latest filing
Contradicting evidence — always shown
  • −13F data is disclosed up to 45 days after quarter end — positions may have changed since
Know the limits
  • · 13F disclosure lag (up to 45 days)
  • · Tracked investors are a sample, not the whole market
  • · Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/4/2026.

About GIBRALTAR INDS INC (ROCK)

GIBRALTAR INDS INC (ROCK) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $12M. Across recent filings, tracked investors recorded 1 new positions, 2 increased, 0 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ROCK

100
/100
Strong Institutional Accumulation
Added / Increased3
Reduced0
Exited0
BearishBullish
Crowded Trade Score™

How many top investors track ROCK

27
/100
Emerging Interest
4investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

ROCK Ownership Composition

How GIBRALTAR INDS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type
Other
56% of tracked value
Institutions
4
tracked investors
Total Reported
$13.3M
combined 13F value
Sectors2
  • Other56.0%
  • Hedge Funds44.0%
Other(3)
56.0%
Hedge Funds(1)
44.0%

Tracked investors reporting ROCK

  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    118.4K
    Value
    $4.7M
    % Portfolio
    0.00%
  • Steve CohenDec 31, 2025
    Point72 Asset Management
    Shares
    118.2K
    Value
    $5.8M
    % Portfolio
    0.01%
  • Izzy EnglanderDec 31, 2025
    Millennium Management
    Shares
    49.4K
    Value
    $2.4M
    % Portfolio
    0.00%
  • Ray DalioMar 31, 2026
    Bridgewater Associates
    Shares
    7K
    Value
    $281K
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold ROCK?
4 tracked institutional investors disclosed a position in ROCK (GIBRALTAR INDS INC) in their most recent 13F filing.
Who is the largest institutional holder of ROCK?
Ken Griffin, Citadel Advisors, holds the largest disclosed position in ROCK, valued at $12M.
Did institutional ownership of ROCK increase or decrease?
Across recent 13F filings, tracked investors recorded 1 new positions, 2 increased, 0 reduced, and 0 fully exited ROCK.
Where does this ROCK ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.