Beta62% was sold under disclosed trading plans, 38% with no plan disclosed. The largest seller, Ronald Kramer (Chairman of the Board and CEO, Director), sold $19.7M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why
A share of stake is shown for 0 of the 10 officers and directors who sold. 15 are left out Disclosed company stock is not an insider's whole wealth.i
Left out: Ronald Kramer, Robert Mehmel, Brian Harris, Seth Kaplan, Henry Alpert, Louis Grabowsky, Christopher Durborow, Kevin Sullivan, Cheryl Turnbull, Lacy Johnson, Samanta Hegedus, Jerome Coben, James Sight, H.C Diao and Michelle Taylor (share of stake is being verified).
Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
No officer or director trades were reported for the past 30 days. The most recent before that:
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Kevin Sullivan Director | 3,500 | $105.59 | n/a | n/a | Aug 13, 2026 | Aug 14, 2026 |
| Cheryl Turnbull Director | 3,000 | $106.12 | n/a | n/a | Aug 13, 2026 | Aug 14, 2026 |
Yes. Ronald Kramer sold 200K shares ($19.7M) in the past 12 months, 52% of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 62% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 38% had no disclosed plan. A trading plan schedules sales in advance.
Yes. 1 officer or director reported 1 purchase in the past 12 months (Form 4 code P; rows the filings describe as reinvested dividends, plan purchases, private deals or moves into the person's own trust are not counted).
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| Ronald Kramer Chairman of the Board and CEO, Director | $19.7M 200K shares | Not confirmedshare of stake is being verified. Why | 52% under a disclosed plan 48% no plan disclosed |
| Robert Mehmel President and COO | $9.4M 92K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Brian Harris EVP, Chief Financial Officer | $3.0M 30K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Seth Kaplan Sr VP, Gen. Counsel and Secy | $1.4M 15K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Louis Grabowsky Director | $1.0M 11K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Christopher Durborow Vice President & CAO | $920K 10K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Kevin Sullivan Director | $370K 3.5K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Cheryl Turnbull Director | $318K 3K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| James Sight Director | $295K 3.1K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Michelle Taylor Director | $153K 1.6K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 16, 2025 | Sold | Held Oct 16, 2026 | Still held |
|---|---|---|---|---|
Ronald Kramer!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Ronald Kramer are complete. Chairman of the Board and CEO, Director | n/a | −200K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Ronald KramerHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Ronald Kramer are complete; balances and unit counts will be added when the check is finished. −68Kgifted (net of own trusts) −74Kwithheld by the company for taxes | ||||
Robert Mehmel!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Robert Mehmel are complete. President and COO | n/a | −92K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Robert MehmelHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Robert Mehmel are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −27Kwithheld by the company for taxes | ||||
Brian Harris!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Brian Harris are complete. EVP, Chief Financial Officer | n/a | −30K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Brian HarrisHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Brian Harris are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −7.6Kwithheld by the company for taxes | ||||
Seth Kaplan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Seth Kaplan are complete. Sr VP, Gen. Counsel and Secy | n/a | −15K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Seth KaplanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Seth Kaplan are complete; balances and unit counts will be added when the check is finished. −600gifted (net of own trusts) −8.9Kwithheld by the company for taxes | ||||
Henry Alpert!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Henry Alpert are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Henry AlpertHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Henry Alpert are complete; balances and unit counts will be added when the check is finished. −2.1Kgifted (net of own trusts) | ||||
Louis Grabowsky!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Louis Grabowsky are complete. Director | n/a | −11K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Louis GrabowskyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Louis Grabowsky are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Christopher Durborow!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Christopher Durborow are complete. Vice President & CAO | n/a | −10K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Christopher DurborowHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Christopher Durborow are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −4.3Kwithheld by the company for taxes | ||||
Kevin Sullivan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Kevin Sullivan are complete. Director | n/a | −3.5K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Kevin SullivanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kevin Sullivan are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Cheryl Turnbull!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Cheryl Turnbull are complete. Director | n/a | −3K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Cheryl TurnbullHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Cheryl Turnbull are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Lacy Johnson!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Lacy Johnson are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Lacy JohnsonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Lacy Johnson are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Samanta Hegedus!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Samanta Hegedus are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Samanta HegedusHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Samanta Hegedus are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Jerome Coben!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jerome Coben are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Jerome CobenHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jerome Coben are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
James Sight!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for James Sight are complete. Director | n/a | −3.1K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for James SightHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James Sight are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
H.C Diao!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for H.C Diao are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for H.C DiaoHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for H.C Diao are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Michelle Taylor!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Michelle Taylor are complete. Director | n/a | −1.6K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Michelle TaylorHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Michelle Taylor are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Holdings and share of stake for Griffon Corp are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.
Officer and director open-market sales: $36.7M across 369,477 shares. Plan status and stated purpose are separate questions, and a sale can have both.
The lighter segment is sales with no plan disclosed in the filing ($14.0M), including tax-related sales outside a plan.
Sales with no 10b5-1 plan and no tax reference in the filing. $9.5M of it is Ronald Kramer. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Ronald Kramer, Jun 12, 2026
121,881 shares ($9.1M) were withheld by the company for taxes, which isn't a market sale.
1 officer or director bought shares in this period, in 1 trade(Form 4 code P, leaving out rows the filings describe as reinvested dividends, plan purchases, private deals or moves into the person's own trust). Across all their filings on record there are 52 purchase trades.
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| Ronald Kramer Chairman of the Board and CEO, Director | 200K | $19.7M | 52% | 54% | Jun 12, 2026 to Aug 5, 2026 |
| Robert Mehmel President and COO | 92K | $9.4M | 100% | 26% | Jun 12, 2026 to Aug 11, 2026 |
| Brian Harris EVP, Chief Financial Officer | 30K | $3.0M | 100% | 8% | Jun 11, 2026 to Aug 7, 2026 |
| Seth Kaplan Sr VP, Gen. Counsel and Secy | 15K | $1.4M | 0% | 4% | Feb 9, 2026 to Feb 9, 2026 |
| Louis Grabowsky Director | 11K | $1.0M | 0% | 3% | Feb 13, 2026 to Feb 13, 2026 |
| Christopher Durborow Vice President & CAO | 10K | $920K | 0% | 3% | Feb 17, 2026 to Feb 17, 2026 |
| Kevin Sullivan Director | 3.5K | $370K | 0% | 1% | Aug 13, 2026 to Aug 13, 2026 |
| Cheryl Turnbull Director | 3K | $318K | 0% | 0.9% | Aug 13, 2026 to Aug 13, 2026 |
| James Sight Director | 3.1K | $295K | 0% | 0.8% | Feb 9, 2026 to Feb 9, 2026 |
| Michelle Taylor Director | 1.6K | $153K | 0% | 0.4% | Feb 12, 2026 to Feb 12, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $0 | $0 | $0 | $0 |
| Nov 2025 | $0 | $0 | $0 | $0 |
| Dec 2025 | $0 | $0 | $0 | $0 |
| Jan 2026 | $0 | $0 | $0 | $0 |
| Feb 2026 | $3.8M | $0 | $0 | $3.8M |
| Mar 2026 | $0 | $0 | $0 | $0 |
| Apr 2026 | $0 | $0 | $0 | $0 |
| May 2026 | $0 | $0 | $0 | $0 |
| Jun 2026 | $13.6M | $4.1M | $0 | $9.5M |
| Jul 2026 | $0 | $0 | $0 | $0 |
| Aug 2026 | $19.2M | $18.5M | $0 | $688K |
| Sep 2026 | $0 | $0 | $0 | $0 |
| Oct 2026 | $0 | $0 | $0 | $0 |
More than usual: about 2x the 5-year average. 10 insiders sold; the average is 5 a year.
| 12 months ending | Shares sold | Insiders who sold | Proceeds |
|---|---|---|---|
| Oct 16, 2026 Latest 12 months | 369K | 10 | $36.7M |
| Oct 16, 2025 1 year earlier | 418K | 12 | $31.5M |
| Oct 16, 2024 2 years earlier | 454K | 11 | $30.4M |
| Oct 17, 2023 3 years earlier | 0 | 0 | $0 |
| Oct 17, 2022 4 years earlier | 3.4K | 1 | $95K |
| Oct 17, 2021 5 years earlier | 63K | 2 | $1.5M |
Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.
Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Griffon Corp are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 682 Forms 3, 4 and 5 on record for Griffon Corp (SEC CIK 50725), filed from Jan 6, 2003 to Aug 14, 2026; 42 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages. 9 older filings exist only on paper and could not be read.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
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