Griffon Corporation
US ˙ NYSE ˙ US3984331021

SecurityGFF / Griffon Corporation
InstitutionVerition Fund Management LLC
Latest Disclosed Ownership13,518 shares
Latest Disclosed Value $ 982,488
Verition Fund Management LLC reports 75.65% decrease in ownership of GFF / Griffon Corporation

On May 15, 2026 - Verition Fund Management LLC filed a 13F-HR form disclosing ownership of 13,518 shares of Griffon Corporation (US:GFF) valued at $982,488 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 55,514 shares of Griffon Corporation. This represents a change in shares of -75.65% during the quarter. The current value of the position is $1,164,441 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F GRIFFON COM 398433102 13,518 -41,996 -75.65 982 -75.98 0.0064
2026-02-13 2025-12-31 13F GRIFFON COM 398433102 55,514 -51,590 -48.17 4,089 -49.87 0.0161
2025-11-14 2025-09-30 13F GRIFFON COM 398433102 107,104 17,864 20.02 8,156 26.28 0.0337
2025-08-14 2025-06-30 13F GRIFFON COM 398433102 89,240 -7,432 -7.69 6,458 -6.57 0.0287
2025-05-15 2025-03-31 13F GRIFFON COM 398433102 96,672 -53,767 -35.74 6,912 -35.53 0.0322
2025-02-14 2024-12-31 13F GRIFFON COM 398433102 150,439 111,665 287.99 10,722 295.03 0.0424
2024-11-14 2024-09-30 13F GRIFFON COM 398433102 38,774 -14,965 -27.85 2,714 -20.90 0.0137
2024-08-14 2024-06-30 13F GRIFFON COM 398433102 53,739 37,488 230.68 3,432 188.08 0.0188
2024-05-14 2024-03-31 13F GRIFFON COM 398433102 16,251 -11,476 -41.39 1,192 -29.48 0.0082
2024-02-14 2023-12-31 13F GRIFFON COM 398433102 27,727 -29,757 -51.77 1,690 -25.92 0.0132
2023-11-14 2023-09-30 13F GRIFFON COM 398433102 57,484 1,579 2.82 2,280 1.24 0.0266
2023-08-14 2023-06-30 13F GRIFFON COM 398433102 55,905 55,905 2,253 0.0301
2023-05-15 2023-03-31 13F GRIFFON COM 398433102 0 -7,546 -100.00 0 -100.00
2023-02-14 2022-12-31 13F GRIFFON COM 398433102 7,546 7,546 270 0.0042
2022-06-02 2022-03-31 13F/A-1 GRIFFON COM 398433102 0 -50,000 -100.00 0 -100.00
2022-05-13 2022-03-31 13F GRIFFON COM 398433102 0 -50,000 0
2022-05-03 2021-12-31 13F/A-1 GRIFFON COM 398433102 50,000 50,000 1,424 0.0097
2022-02-14 2021-12-31 13F GRIFFON COM 398433102 50,000 50,000 1,424 0.0092
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.