Griffon Corp (GFF) shareholders
GFFNYSEMetal Doors, Sash, Frames, Moldings & TrimFiscal year ends September 30
Financials through Q3 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026Score 16/3018% above fair value
$105.16+0.32 (+0.31%)
Close on Nov 13, 2026Market cap $4.76BP/E 26.8Yield 0.68%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
80.6%
37M of 45M shares
Institutional holders
347
56 new, 43 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
1 buys · 57 sales
Net sold $37.42M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 5,773,862 | 12.30% | 13G (passive) amendment | Jun 30, 2025 |
| Vanguard Portfolio Management | 3,778,478 | 8.11% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of GFF | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,055,910 | 13.37% | $590.63M | +93,545 | 0.01% |
| Vanguard Portfolio Management LLC | 3,730,377 | 8.24% | $363.82M | −14,737 | 0.02% |
| Vanguard Capital Management LLC | 1,897,115 | 4.19% | $185.03M | −21,546 | 0.00% |
| FMR LLC | 1,629,720 | 3.60% | $158.95M | +1,206,829 | 0.01% |
| State Street Corp | 1,565,340 | 3.46% | $152.67M | +65,984 | 0.00% |
| Voss Capital, LLC | 1,516,857 | 3.35% | $147.94M | −308,143 | 6.87% |
| Fuller & Thaler Asset Management, Inc. | 1,076,994 | 2.38% | $105.04M | +74,981 | 0.29% |
| Dimensional Fund Advisors LP | 1,005,620 | 2.22% | $98.08M | −5,740 | 0.02% |
| Geode Capital Management, LLC | 980,082 | 2.16% | $95.60M | +56,107 | 0.01% |
| Nomura Asset Management International Inc. | 734,114 | 1.62% | $71.60M | −42,437 | 0.11% |
| Raymond James Financial Inc | 680,895 | 1.50% | $66.41M | +57,110 | 0.02% |
| Charles Schwab Investment Management Inc | 563,545 | 1.24% | $54.96M | +4,625 | 0.01% |
| Renaissance Technologies LLC | 508,751 | 1.12% | $49.62M | −38,600 | 0.07% |
| Gamco Investors, Inc. Et Al | 500,440 | 1.10% | $48.81M | −5,608 | 0.44% |
| Morgan Stanley | 495,531 | 1.09% | $48.33M | +73,297 | 0.00% |
| Goldman Sachs Group Inc | 481,762 | 1.06% | $46.99M | +53,997 | 0.00% |
| Point72 Asset Management, L.P. | 473,416 | 1.05% | $46.17M | −109,280 | 0.05% |
| Luxor Capital Group, LP | 458,793 | 1.01% | $44.75M | New | 1.78% |
| Jennison Associates LLC | 447,603 | 0.99% | $43.65M | +199,196 | 0.03% |
| Northern Trust Corp | 439,294 | 0.97% | $42.84M | +20,929 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 347 | 37M | 80.6% | 56 / 122 | 123 / 43 | 4M | 4M |
| Q1 2026 | 339 | 36M | 80.2% | 52 / 132 | 107 / 43 | 9M | 4M |
| Q4 2025 | 339 | 37M | 81.2% | 50 / 120 | 122 / 29 | 5M | 4M |
| Q3 2025 | 325 | 37M | 80.6% | 37 / 116 | 120 / 45 | 4M | 4M |
| Q2 2025 | 335 | 37M | 80.9% | 52 / 112 | 118 / 28 | 3M | 4M |
| Q1 2025 | 314 | 38M | 83.7% | 41 / 124 | 99 / 43 | 4M | 3M |
| Q4 2024 | 321 | 37M | 82.8% | 62 / 110 | 106 / 40 | 4M | 4M |
| Q3 2024 | 304 | 37M | 81.8% | 35 / 112 | 107 / 38 | 9M | 3M |
| Q2 2024 | 309 | 38M | 83.2% | 50 / 119 | 96 / 33 | 4M | 5M |
| Q1 2024 | 294 | 39M | 86.5% | 60 / 79 | 124 / 29 | 4M | 5M |
| Q4 2023 | 264 | 40M | 88.0% | 63 / 60 | 105 / 13 | 5M | 4M |
| Q3 2023 | 217 | 39M | 86.1% | 41 / 50 | 99 / 26 | 4M | 6M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
340 funds held GFF in Q2 2026, 54% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of GFF | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 2,321,315 | 5.12% | $226.40M | 0.20% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 1,381,912 | 3.05% | $134.78M | 0.01% | Jun 30, 2026 |
| Fullerthaler Behavioral Small Cap Equity | 1,027,994 | 2.27% | $100.26M | 0.79% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 999,628 | 2.21% | $97.49M | 0.05% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 997,814 | 2.20% | $97.32M | 0.12% | Jun 30, 2026 |
| Vanguard Strategic Equity Fund | 664,254 | 1.47% | $64.78M | 0.53% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 633,023 | 1.40% | $61.74M | 0.09% | Jun 30, 2026 |
| Nomura Small Cap Value Fund | 472,746 | 1.04% | $41.59M | 1.19% | May 29, 2026 |
| Fidelity Value Fund | 442,500 | 0.98% | $38.13M | 0.36% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 442,247 | 0.98% | $43.13M | 0.04% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 423,606 | 0.94% | $36.50M | 0.11% | Jul 31, 2026 |
| Fidelity Enhanced Small Cap Core ETF | 359,966 | 0.79% | $35.11M | 0.61% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 354,653 | 0.78% | $34.59M | 0.20% | Jun 30, 2026 |
| 1290 VT GAMCO Small Company Value Portfolio | 352,500 | 0.78% | $34.38M | 0.77% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF | 267,031 | 0.59% | $26.04M | 0.17% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Ronald J. Kramer | Chairman of the Board and CEO, Director | 1,754,357 | 3.87% | Aug 7, 2026 |
| Robert F. Mehmel | President and COO | 719,508 | 1.59% | Nov 6, 2026 |
| Brian G. Harris | EVP, Chief Financial Officer | 133,593 | 0.29% | Aug 11, 2026 |
| W. Christopher Durborow | Vice President & CAO | 33,223 | 0.07% | Feb 18, 2026 |
| Seth L. Kaplan | Sr VP, Gen. Counsel and Secy | 132,447 | 0.29% | Feb 11, 2026 |
| Kevin F. Sullivan | Director | 40,602 | 0.09% | Aug 14, 2026 |
| Cheryl L. Turnbull | Director | 30,114 | 0.07% | Aug 14, 2026 |
| Henry A. Alpert | Director | 107,879 | 0.24% | Mar 9, 2026 |
| Michelle L. Taylor | Director | 10,363 | 0.02% | Feb 20, 2026 |
| Jerome L. Coben | Director | 19,459 | 0.04% | Feb 20, 2026 |
| Louis J. Grabowsky | Director | 43,010 | 0.09% | Feb 20, 2026 |
| H.C. Charles Diao | Director | 12,013 | 0.03% | Feb 20, 2026 |
| Lacy M. Johnson | Director | 26,443 | 0.06% | Feb 20, 2026 |
| Samanta Hegedus | Director | 26,055 | 0.06% | Feb 20, 2026 |
| James W. Sight | Director | 15,212 | 0.03% | Feb 20, 2026 |
| Victor Eugene Renuart | Director | 19,312 | 0.04% | Nov 29, 2024 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Robert F. Mehmel President and COO | Nov 5, 2026 | Sale(10b5-1 plan) | −825 | $108.13 | $89.21K | 715,289 |
| Robert F. Mehmel President and COO | Nov 5, 2026 | Sale(10b5-1 plan) | −6,918 | $107.56 | $744.10K | 716,114 |
| Kevin F. Sullivan Director | Aug 13, 2026 | Sale | −3,500 | $105.59 | $369.57K | 40,602 |
| Cheryl L. Turnbull Director | Aug 13, 2026 | Sale | −3,000 | $106.12 | $318.36K | 30,039 |
| Robert F. Mehmel President and COO | Aug 11, 2026 | Sale(10b5-1 plan) | −3,240 | $107.16 | $347.20K | 723,032 |
| Robert F. Mehmel President and COO | Aug 10, 2026 | Sale(10b5-1 plan) | −88 | $105.21 | $9.26K | 726,272 |
| Robert F. Mehmel President and COO | Aug 10, 2026 | Sale(10b5-1 plan) | −3,638 | $104.08 | $378.64K | 729,273 |
| Robert F. Mehmel President and COO | Aug 10, 2026 | Sale(10b5-1 plan) | −2,913 | $104.64 | $304.82K | 726,360 |
| Robert F. Mehmel President and COO | Aug 7, 2026 | Sale(10b5-1 plan) | −13,464 | $107.43 | $1.45M | 733,464 |
| Robert F. Mehmel President and COO | Aug 7, 2026 | Sale(10b5-1 plan) | −1,911 | $106.60 | $203.71K | 746,928 |
| Robert F. Mehmel President and COO | Aug 7, 2026 | Sale(10b5-1 plan) | −553 | $108.09 | $59.77K | 732,911 |
| Brian G. Harris EVP, Chief Financial Officer | Aug 7, 2026 | Sale(10b5-1 plan) | −5,267 | $107.11 | $564.15K | 128,649 |
| Robert F. Mehmel President and COO | Aug 6, 2026 | Sale(10b5-1 plan) | −2,074 | $106.27 | $220.40K | 748,839 |
| Robert F. Mehmel President and COO | Aug 6, 2026 | Sale(10b5-1 plan) | −6,933 | $105.46 | $731.15K | 750,913 |
| Robert F. Mehmel President and COO | Aug 6, 2026 | Sale(10b5-1 plan) | −5,476 | $104.56 | $572.57K | 757,846 |
| Robert F. Mehmel President and COO | Aug 6, 2026 | Sale(10b5-1 plan) | −211 | $103.52 | $21.84K | 763,322 |
| Robert F. Mehmel President and COO | Aug 6, 2026 | Sale(10b5-1 plan) | −158 | $102.03 | $16.12K | 763,533 |
| Brian G. Harris EVP, Chief Financial Officer | Aug 5, 2026 | Sale(10b5-1 plan) | −8,817 | $103.08 | $908.86K | 136,149 |
| Brian G. Harris EVP, Chief Financial Officer | Aug 5, 2026 | Sale(10b5-1 plan) | −2,233 | $104.01 | $232.25K | 133,916 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Aug 5, 2026 | Sale(10b5-1 plan) | −45,240 | $102.63 | $4.64M | 1,708,819 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Aug 5, 2026 | Sale(10b5-1 plan) | −16,402 | $103.37 | $1.70M | 1,692,417 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Aug 5, 2026 | Sale(10b5-1 plan) | −8,120 | $104.27 | $846.67K | 1,684,297 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Aug 5, 2026 | Sale(10b5-1 plan) | −12,916 | $100.44 | $1.30M | 1,771,381 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Aug 5, 2026 | Sale(10b5-1 plan) | −17,322 | $101.58 | $1.76M | 1,754,059 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −3,527 | $100.46 | $354.32K | 779,473 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −617 | $98.68 | $60.89K | 785,283 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −2,283 | $99.67 | $227.55K | 783,000 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −2,790 | $101.44 | $283.02K | 776,683 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −5,341 | $102.59 | $547.93K | 771,342 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −5,434 | $103.53 | $562.58K | 765,908 |
| Robert F. Mehmel President and COO | Aug 5, 2026 | Sale(10b5-1 plan) | −2,217 | $104.12 | $230.83K | 763,691 |
| Brian G. Harris EVP, Chief Financial Officer | Jun 30, 2026 | Sale(10b5-1 plan) | −6,183 | $98.01 | $606.00K | 144,966 |
| Robert F. Mehmel President and COO | Jun 30, 2026 | Sale(10b5-1 plan) | −4,166 | $97.76 | $407.27K | 785,900 |
| Robert F. Mehmel President and COO | Jun 26, 2026 | Sale(10b5-1 plan) | −230 | $95.52 | $21.97K | 790,122 |
| Robert F. Mehmel President and COO | Jun 26, 2026 | Sale(10b5-1 plan) | −52 | $96.14 | $5.00K | 790,070 |
| Robert F. Mehmel President and COO | Jun 26, 2026 | Sale(10b5-1 plan) | −4 | $97.50 | $390 | 790,066 |
| Robert F. Mehmel President and COO | Jun 25, 2026 | Sale(10b5-1 plan) | −1,190 | $97.27 | $115.75K | 790,352 |
| Robert F. Mehmel President and COO | Jun 25, 2026 | Sale(10b5-1 plan) | −5,149 | $95.62 | $492.35K | 793,076 |
| Robert F. Mehmel President and COO | Jun 25, 2026 | Sale(10b5-1 plan) | −1,534 | $96.41 | $147.89K | 791,542 |
| Robert F. Mehmel President and COO | Jun 24, 2026 | Sale(10b5-1 plan) | −4,626 | $95.45 | $441.55K | 798,325 |
| Robert F. Mehmel President and COO | Jun 24, 2026 | Sale(10b5-1 plan) | −100 | $96.03 | $9.60K | 798,225 |
| Robert F. Mehmel President and COO | Jun 17, 2026 | Sale(10b5-1 plan) | −547 | $95.37 | $52.17K | 802,951 |
| Robert F. Mehmel President and COO | Jun 16, 2026 | Sale(10b5-1 plan) | −2,921 | $95.36 | $278.55K | 803,595 |
| Robert F. Mehmel President and COO | Jun 16, 2026 | Sale(10b5-1 plan) | −97 | $96.25 | $9.34K | 803,498 |
| Robert F. Mehmel President and COO | Jun 15, 2026 | Sale(10b5-1 plan) | −3,272 | $95.40 | $312.15K | 806,516 |
| Robert F. Mehmel President and COO | Jun 12, 2026 | Sale(10b5-1 plan) | −5,501 | $95.18 | $523.59K | 809,788 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Jun 12, 2026 | Sale | −48,971 | $94.62 | $4.63M | 1,784,297 |
| Ronald J. Kramer Chairman of the Board and CEO, Director | Jun 12, 2026 | Sale | −51,029 | $95.21 | $4.86M | 1,833,268 |
| Brian G. Harris EVP, Chief Financial Officer | Jun 11, 2026 | Sale(10b5-1 plan) | −7,500 | $95.03 | $712.73K | 151,149 |
| Henry A. Alpert Director | Mar 5, 2026 | Buy | +1,000 | $79.99 | $79.99K | 71,479 |
| Kevin F. Sullivan Director | Feb 18, 2026 | Award | +1,340 | – | – | 44,102 |
| Henry A. Alpert Director | Feb 18, 2026 | Award | +1,340 | – | – | 70,479 |
| Louis J. Grabowsky Director | Feb 18, 2026 | Award | +1,340 | – | – | 43,010 |
| H.C. Charles Diao Director | Feb 18, 2026 | Award | +1,340 | – | – | 12,013 |
| Michelle L. Taylor Director | Feb 18, 2026 | Award | +1,340 | – | – | 10,363 |
| James W. Sight Director | Feb 18, 2026 | Award | +1,340 | – | – | 15,212 |
| Lacy M. Johnson Director | Feb 18, 2026 | Award | +1,340 | – | – | 26,443 |
| Cheryl L. Turnbull Director | Feb 18, 2026 | Award | +1,340 | – | – | 33,039 |
| Samanta Hegedus Director | Feb 18, 2026 | Award | +1,340 | – | – | 26,055 |
| Jerome L. Coben Director | Feb 18, 2026 | Award | +1,340 | – | – | 19,459 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
3.36%
1M shares short
Days to cover
4.3
At 0M shares a day
Change since last report
-1.7%
From 1M shares
Short volume, 20 days
50.9%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Griffon's stock actually held short. Settlement fails (shares not delivered on time) peaked at 64 shares on Sep 10, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Kevin F. Sullivan Director | Aug 13, 2026 | 3,500 | $367.08K | Aug 13, 2026 | Open Market Purchase |
| Cheryl L. Turnbull Director | Aug 13, 2026 | 3,000 | $320.25K | Aug 13, 2026 | Vesting of restricted stock |
| Brian G. Harris Officer | Aug 7, 2026 | 5,267 | $564.11K | Aug 7, 2026 | RSU / AWARDS |
| Ronald J. Kramer Director and Officer | Aug 5, 2026 | 100,000 | $9.36M | Aug 5, 2026 | Vesting of Restricted Stock |
| Robert F. Mehmel Director | Aug 5, 2026 | 50,000 | $5.14M | Aug 5, 2026 | Acquired as compensation -- Restricted Stock Units |
| Brian G. Harris Officer | Aug 5, 2026 | 11,050 | $1.14M | Aug 5, 2026 | RSU / AWARDS |
| Brian G. Harris Officer | Jun 30, 2026 | 6,183 | $606.02K | Jun 30, 2026 | RSU / AWARDS |
| Ronald J. Kramer Director and Officer | Jun 12, 2026 | 100,000 | $9.08M | Jun 12, 2026 | Vesting of Restricted Stock |
| Robert F. Mehmel Director | Jun 12, 2026 | 50,000 | $4.69M | Jun 12, 2026 | Acquired as compensation -- Restricted Stock Units |
| Brian G. Harris Officer | Jun 11, 2026 | 7,500 | $712.72K | Jun 11, 2026 | VESTED RESTRICTED STOCK AWARDS |
| William C Durborow Officer | Feb 17, 2026 | 10,000 | $920.70K | Feb 17, 2026 | Acquired as compensation -- Restricted Stock Units |
| Louis J. Grabowsky Director | Feb 13, 2026 | 11,000 | $1.03M | Feb 13, 2026 | Vesting of Restricted Stock |
| Michelle L. Taylor Officer | Feb 12, 2026 | 1,650 | $153.17K | Feb 12, 2026 | Grant |
| Ronald J. Kramer Director and Officer | Feb 9, 2026 | 100,000 | $9.48M | Feb 9, 2026 | Vesting of Restricted Stock |
| Seth L. Kaplan Officer | Feb 9, 2026 | 15,000 | $1.42M | Feb 9, 2026 | Vesting of Restricted Stock |
See a number that looks wrong?