Griffon Corporation
DE ˙ DB ˙ US3984331021
73,50 € ↑1,00 (1,38%)
2026-06-04
DEL PRIS
SecurityDE:GFF / Griffon Corporation
InstitutionNorthern Trust Corp
Latest Disclosed Ownership418,365 shares
Latest Disclosed Value $ 30,406,768
Northern Trust Corp reports 2.10% increase in ownership of GFF / Griffon Corporation

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 418,365 shares of Griffon Corporation (DE:GFF) valued at $25,938,630 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 409,777 shares of Griffon Corporation. This represents a change in shares of 2.10% during the quarter. The current value of the position is $30,749,828 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)
2026-05-14 2026-03-31 13F GRIFFON COM 398433102 418,365 8,588 2.10 30,407 0.75 0.0008
2026-02-17 2025-12-31 13F GRIFFON COM 398433102 409,777 -18,070 -4.22 30,180 -7.37 0.0008
2025-11-14 2025-09-30 13F GRIFFON COM 398433102 427,847 -9,366 -2.14 32,581 2.97 0.0009
2025-08-13 2025-06-30 13F GRIFFON COM 398433102 437,213 -11,432 -2.55 31,641 -1.36 0.0044
2025-05-13 2025-03-31 13F GRIFFON COM 398433102 448,645 181 0.04 32,078 0.36 0.0048
2025-02-14 2024-12-31 13F GRIFFON COM 398433102 448,464 44,166 10.92 31,962 12.94 0.0045
2024-11-13 2024-09-30 13F GRIFFON COM 398433102 404,298 -2,639 -0.65 28,301 8.90 0.0046
2024-08-14 2024-06-30 13F GRIFFON COM 398433102 406,937 -12,457 -2.97 25,987 -15.51 0.0044
2024-05-14 2024-03-31 13F GRIFFON COM 398433102 419,394 -34,708 -7.64 30,758 11.13 0.0053
2024-02-13 2023-12-31 13F GRIFFON COM 398433102 454,102 -21,088 -4.44 27,678 46.83 0.0050
2023-11-13 2023-09-30 13F GRIFFON COM 398433102 475,190 -13,710 -2.80 18,851 -4.32 0.0037
2023-08-11 2023-06-30 13F GRIFFON COM 398433102 488,900 13,378 2.81 19,703 29.44 0.0038
2023-05-15 2023-03-31 13F GRIFFON COM 398433102 475,522 -23,507 -4.71 15,221 -14.78 0.0030
2023-02-13 2022-12-31 13F GRIFFON COM 398433102 499,029 -1,071 -0.21 17,860 20.98 0.0037
2022-11-14 2022-09-30 13F GRIFFON COM 398433102 500,100 -2,838 -0.56 14,763 4.72 0.0034
2022-08-12 2022-06-30 13F GRIFFON COM 398433102 502,938 -31,394 -5.88 14,097 31.71 0.0030
2022-05-13 2022-03-31 13F GRIFFON COM 398433102 534,332 -74,336 -12.21 10,703 -38.25 0.0019
2022-02-08 2021-12-31 13F GRIFFON COM 398433102 608,668 -960 -0.16 17,334 15.58 0.0028
2021-11-15 2021-09-30 13F GRIFFON COM 398433102 609,628 -16,551 -2.64 14,998 -6.55 0.0027
2021-08-13 2021-06-30 13F GRIFFON COM 398433102 626,179 91,150 17.04 16,049 10.40 0.0028
2021-05-12 2021-03-31 13F GRIFFON COM 398433102 535,029 -3,054 -0.57 14,537 32.54 0.0027
2021-02-11 2020-12-31 13F GRIFFON COM 398433102 538,083 -19,256 -3.45 10,968 0.72 0.0021
2020-11-16 2020-09-30 13F GRIFFON COM 398433102 557,339 37,460 7.21 10,890 13.11 0.0024
2020-08-14 2020-06-30 13F GRIFFON COM 398433102 519,879 -635 -0.12 9,628 46.23 0.0023
2020-05-14 2020-03-31 13F GRIFFON COM 398433102 520,514 9,022 1.76 6,584 -36.68 0.0019
2020-02-14 2019-12-31 13F GRIFFON COM 398433102 511,492 -19,580 -3.69 10,398 -6.63 0.0023
2019-11-13 2019-09-30 13F GRIFFON COM 398433102 531,072 46,410 9.58 11,136 35.79 0.0027
2019-08-13 2019-06-30 13F GRIFFON COM 398433102 484,662 12,756 2.70 8,201 -5.95 0.0019
2019-05-13 2019-03-31 13F GRIFFON COM 398433102 471,906 11,518 2.50 8,720 81.25 0.0022
2019-02-12 2018-12-31 13F GRIFFON COM 398433102 460,388 -3,293 -0.71 4,811 -35.75 0.0013
2018-11-14 2018-09-30 13F GRIFFON COM 398433102 463,681 68,588 17.36 7,488 6.47 0.0018
2018-09-18 2018-06-30 13F/A-1 GRIFFON COM 398433102 395,093 -12,368 -3.04 7,033 -5.41 0.0018
2018-08-14 2018-06-30 13F GRIFFON COM 398433102 398,859 -8,602 7,100
2018-05-09 2018-03-31 13F GRIFFON COM 398433102 407,461 340 0.08 7,435 -10.26 0.0019
2018-02-14 2017-12-31 13F GRIFFON COM 398433102 407,121 -1,943 -0.47 8,285 -8.77 0.0021
2017-11-13 2017-09-30 13F GRIFFON COM 398433102 409,064 -485,488 -54.27 9,081 -53.75 0.0024
2017-08-11 2017-06-30 13F GRIFFON COM 398433102 894,552 -601,533 -40.21 19,636 -46.76 0.0055
2017-05-12 2017-03-31 13F GRIFFON COM 398433102 1,496,085 29,317 2.00 36,879 -4.03 0.0106
2017-02-13 2016-12-31 13F GRIFFON COM 398433102 1,466,768 29,584 2.06 38,429 57.19 0.0118
2016-11-09 2016-09-30 13F GRIFFON COM 398433102 1,437,184 9,715 0.68 24,447 1.58 0.0076
2016-08-12 2016-06-30 13F GRIFFON COM 398433102 1,427,469 -4,881 -0.34 24,067 8.75 0.0078
2016-08-19 2016-03-31 13F/A-1 GRIFFON COM 398433102 1,432,350 -2,453 -0.17 22,130 -13.35 0.0073
2016-05-13 2016-03-31 13F GRIFFON COM 398433102 1,432,350 22,130
2016-02-12 2015-12-31 13F GRIFFON COM 398433102 1,434,803 -28,326 -1.94 25,540 10.69 0.0085
2015-11-12 2015-09-30 13F GRIFFON COM 398433102 1,463,129 1,443,278 7,270.56 23,073 3,651.71 0.0077
2015-08-13 2015-06-30 13F Grifols S A ADR 039843840 19,851 -1,392,969 -98.59 615 -97.50 0.0004
2015-08-13 2015-06-30 13F GRIFFON COM 398433102 1,453,017 40,197 23,132 0.0157
2015-05-14 2015-03-31 13F GRIFFON COM 398433102 1,412,820 64,900 4.81 24,625 37.35 0.0074
2015-02-12 2014-12-31 13F GRIFFON COM 398433102 1,347,920 633 0.05 17,928 16.83 0.0054
2014-11-13 2014-09-30 13F GRIFFON COM 398433102 1,347,287 45,528 3.50 15,345 -4.94 0.0048
2014-08-14 2014-06-30 13F GRIFFON COM 398433102 1,301,759 -31,862 -2.39 16,142 1.37 0.0050
2014-05-14 2014-03-31 13F GRIFFON COM 398433102 1,333,621 -73,513 -5.22 15,924 -14.33 0.0050
2014-02-21 2013-12-31 13F/A-1 GRIFFON COM 398433102 1,407,134 41,047 3.00 18,588 8.51 0.0060
2014-02-12 2013-12-31 13F GRIFFON COM 398433102 1,407,134 18,588
2013-11-13 2013-09-30 13F GRIFFON COM 398433102 1,366,087 22,740 1.69 17,131 13.36 0.0060
2013-08-09 2013-06-30 13F GRIFFON COM 398433102 1,343,347 1,343,347 15,112 0.0055
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.