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Ken Griffin's Griffon Corporation (GFF) position

Yes: as of Q1 2026, Ken Griffin holds 63K shares of GFF worth $4.5M (0.0% of the disclosed portfolio). Last quarter the position was increased by 81.9%. First disclosed Q2 2021.
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Current value
$4.5M
Shares held
63K
% of portfolio
0.0%
Est. average buy price (i)
$75.85
Quarter-end price
$72.68

Estimated trade prices

Average price in quarters with purchases
$51.56
Average prices in quarters with sales
  • Q4 2025: $74.35 (84K shares sold)
  • Q1 2025: $73.75 (79K shares sold)
  • Q4 2024: $72.55 (83K shares sold)
  • Q2 2023: $32.80 (9K shares sold)
  • Q1 2023: $36.62 (169K shares sold)

GFF price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$10$50$10020222023202420252026Added 7K shares (70.9%) · Q3 2021. Average closing price $22.15 · Price range $20.76–$24.037KsharespurchasedAdded 8K shares (50.0%) · Q4 2021. Average closing price $24.81 · Price range $23.01–$27.008KsharespurchasedNew position of 11K shares · Q2 2022. Average closing price $23.43 · Price range $16.40–$30.9211KsharespurchasedAdded 37K shares (350.1%) · Q3 2022. Average closing price $30.29 · Price range $25.96–$34.3837KsharespurchasedAdded 137K shares (287.1%) · Q4 2022. Average closing price $33.38 · Price range $29.04–$36.59137KsharespurchasedSold 169K shares (91.6%) · Q1 2023. Average closing price $36.62 · Price range $29.61–$43.01169KsharessoldSold 9K shares (56.2%) · Q2 2023. Average closing price $32.80 · Price range $27.70–$40.469KsharessoldAdded 146K shares (over 1,000%) · Q3 2023. Average closing price $41.01 · Price range $38.82–$43.15146KsharespurchasedNew position of 123K shares · Q2 2024. Average closing price $67.67 · Price range $62.72–$74.48123KsharespurchasedAdded 55K shares (44.4%) · Q3 2024. Average closing price $66.29 · Price range $55.61–$74.7155KsharespurchasedSold 83K shares (46.9%) · Q4 2024. Average closing price $72.55 · Price range $62.88–$85.1683KsharessoldSold 79K shares (83.7%) · Q1 2025. Average closing price $73.75 · Price range $68.06–$80.9179KsharessoldAdded 67K shares (436.6%) · Q2 2025. Average closing price $69.65 · Price range $64.73–$74.9767KsharespurchasedAdded 36K shares (43.4%) · Q3 2025. Average closing price $77.11 · Price range $67.97–$82.6536KsharespurchasedSold 84K shares (71.0%) · Q4 2025. Average closing price $74.35 · Price range $66.79–$77.8384KsharessoldAdded 28K shares (81.9%) · Q1 2026. Average closing price $81.04 · Price range $68.25–$94.8428Ksharespurchased← Earlier —1 purchase
Average closing price · filing quarter
$81.04
Price range · filing quarter
$68.25 – $94.84
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +28K +$2.3M +81.9% 63K May 15, 2026
Q4 2025 Reduced −84K −$6.3M −71.0% 34K Feb 17, 2026
Q3 2025 Added +36K +$2.8M +43.4% 119K Nov 14, 2025
Q2 2025 Added +67K +$4.7M +436.6% 83K Aug 14, 2025
Q1 2025 Reduced −79K −$5.8M −83.7% 15K May 15, 2025
Q4 2024 Reduced −83K −$6.1M −46.9% 94K Feb 14, 2025
Q3 2024 Added +55K +$3.6M +44.4% 178K Nov 14, 2024
Q2 2024 New +123K +$8.3M – 123K Aug 14, 2024
Q3 2023 Added +146K +$6.0M +2,142.5% 153K Nov 14, 2023
Q2 2023 Reduced −9K −$287K −56.2% 7K Aug 14, 2023
Q1 2023 Reduced −169K −$6.2M −91.6% 16K May 15, 2023
Q4 2022 Added +137K +$4.6M +287.1% 184K Feb 14, 2023
Q3 2022 Added +37K +$1.1M +350.1% 48K Nov 14, 2022
Q2 2022 New +11K +$248K – 11K Aug 15, 2022
Q4 2021 Added +8K +$195K +50.0% 24K Feb 14, 2022
Q3 2021 Added +7K +$144K +70.9% 16K Nov 15, 2021
Q2 2021 New +9K +$228K – 9K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
17 grouped rows from 17 quarters

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Common questions

Does Ken Griffin own GFF?

Yes. As of Q1 2026, Ken Griffin disclosed 63K shares of GFF, worth $4.5M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy GFF?

Ken Griffin first disclosed a GFF position in Q2 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell GFF?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in GFF. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of GFF does Ken Griffin own?

Ken Griffin disclosed 63K shares of GFF as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for GFF?

Ken Griffin's estimated average buy price for GFF is $75.85, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.