Griffon Corporation
Griffon Corporation (GFF) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GFF · as of Sep 30, 2025
Ownership Breakdown
329
Institutional Holders
▼ 10 vs Q2
$2.75B
Total Inst. Value
▲ $92.10M vs Q2
45.87M
Shares Outstanding
freeFloat 89.91%
36.08M
13F Shares Held
▼ 594,194 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GFF largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC metal doors, sash, frames, moldings & trim | 5.89M | 12.94% | 12.94% | $448.31B | Nov 7, 2025 | ▼ 96.5K |
BLACKROCK, INC. metal doors, sash, frames, moldings & trim | 5.83M | 12.81% | 12.81% | $443.90B | Nov 12, 2025 | ▼ 487.3K |
VOSS CAPITAL, LLC metal doors, sash, frames, moldings & trim | 1.53M | 3.37% | 3.37% | $116.89B | Nov 20, 2025 | ▲ 185.0K |
STATE STREET CORP metal doors, sash, frames, moldings & trim | 1.52M | 3.35% | 3.35% | $116.08B | Nov 14, 2025 | ▲ 20.5K |
DIMENSIONAL FUND ADVISORS LP metal doors, sash, frames, moldings & trim | 1.09M | 2.40% | 2.40% | $83.29B | Nov 12, 2025 | ▼ 59.1K |
GEODE CAPITAL MANAGEMENT, LLC metal doors, sash, frames, moldings & trim | 921.0K | 2.02% | 2.02% | $70.15B | Nov 12, 2025 | ▲ 16.0K |
LSV ASSET MANAGEMENT metal doors, sash, frames, moldings & trim | 788.2K | 1.73% | 1.73% | $60.02B | Nov 6, 2025 | ▼ 17.2K |
MACQUARIE GROUP LTD metal doors, sash, frames, moldings & trim | 779.8K | 1.71% | 1.71% | $59.38B | Nov 13, 2025 | ▼ 63.1K |
RAYMOND JAMES FINANCIAL INC metal doors, sash, frames, moldings & trim | 710.2K | 1.56% | 1.56% | $54.08B | Nov 14, 2025 | ▼ 8.8K |
FULLER & THALER ASSET MANAGEMENT, INC. metal doors, sash, frames, moldings & trim | 709.2K | 1.56% | 1.56% | $54.01B | Nov 13, 2025 | ▼ 969.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
23
Increased
+2.01M shares4
New Positions
first time holders22
Decreased
−2.11M shares0
Sold Out
fully exitedNet shares change (top 50)
97.3K
+2.01M / −2.11M
Net new holders
+5
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GFF insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
10
Buy transactions
8
Sell transactions
1.25
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
ALPERT HENRY A director | Mar 5, 2026 | Purchase | 1,000 | $79.99 | $80.0K | 71.5K | Form 4 ↗ |
Grabowsky Louis J. director | Feb 18, 2026 | Award | 1,340 | — | — | 43.0K | Form 4 ↗ |
Johnson Lacy M. director | Feb 18, 2026 | Award | 1,340 | — | — | 26.4K | Form 4 ↗ |
ALPERT HENRY A director | Feb 18, 2026 | Award | 1,340 | — | — | 70.5K | Form 4 ↗ |
Sullivan Kevin F director | Feb 18, 2026 | Award | 1,340 | — | — | 44.1K | Form 4 ↗ |
SIGHT JAMES W director | Feb 18, 2026 | Award | 1,340 | — | — | 15.2K | Form 4 ↗ |
Hegedus Samanta director | Feb 18, 2026 | Award | 1,340 | — | — | 26.1K | Form 4 ↗ |
TURNBULL CHERYL L director | Feb 18, 2026 | Award | 1,340 | — | — | 33.0K | Form 4 ↗ |
Taylor Michelle L director | Feb 18, 2026 | Award | 1,340 | — | — | 10.4K | Form 4 ↗ |
Coben Jerome L director | Feb 18, 2026 | Award | 1,340 | — | — | 19.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Griffon Corporation (GFF) is primarily owned by institutional investors, who hold approximately 78.7% of total shares outstanding. Company insiders own approximately 10.09%, while retail and public investors account for the remaining 11.24%.
The largest institutional shareholder of Griffon Corporation is VANGUARD GROUP INC, holding approximately 5.89 million shares — equal to 12.94% of outstanding shares — as of September 30, 2025.
A total of 329 institutional investors currently hold GFF stock, with a combined institutional value of approximately $2.75 billion as of the most recent 13F filing period.
Frequently asked questions
GFF ownershipGriffon Corporation (GFF) is primarily owned by institutional investors, who hold approximately 78.7% of shares. The largest shareholder is VANGUARD GROUP INC with a 12.94% stake. Company insiders hold 10.09%. Data sourced from SEC Form 13F as of September 30, 2025.