Generac Holdings Inc.
MX ˙ BMV ˙ US3687361044
SecurityMX:GNRC / Generac Holdings Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership26,489 shares
Latest Disclosed Value $ 5,173,169
Janus Henderson Group Plc reports 0.50% decrease in ownership of GNRC / Generac Holdings Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 26,489 shares of Generac Holdings Inc. (MX:GNRC) valued at $5,173,169 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 26,622 shares of Generac Holdings Inc.. This represents a change in shares of -0.50% during the quarter.

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)
2026-05-18 2026-03-31 13F/A-1 GENERAC HLDGS COM 368736104 26,489 -133 -0.50 5,173 42.47 0.0009
2026-05-15 2026-03-31 13F GENERAC HLDGS COM 368736104 26,489 -133 -0.50 5,173 42.47 0.0010
2026-02-17 2025-12-31 13F GENERAC HLDGS COM 368736104 26,622 -2,687 -9.17 3,632 -25.99 0.0016
2025-11-14 2025-09-30 13F GENERAC HLDGS COM 368736104 29,309 806 2.83 4,907 20.16 0.0022
2025-08-14 2025-06-30 13F GENERAC HLDGS COM 368736104 28,503 -89 -0.31 4,083 12.36 0.0020
2025-05-15 2025-03-31 13F GENERAC HLDGS COM 368736104 28,592 -1,541 -5.11 3,635 -22.25 0.0020
2025-02-14 2024-12-31 13F GENERAC HLDGS COM 368736104 30,133 332 1.11 4,674 -1.23 0.0024
2024-11-14 2024-09-30 13F GENERAC HLDGS COM 368736104 29,801 -883 -2.88 4,732 16.72 0.0024
2024-08-14 2024-06-30 13F GENERAC HLDGS COM 368736104 30,684 -3,913 -11.31 4,055 -7.02 0.0022
2024-05-15 2024-03-31 13F GENERAC HLDGS COM 368736104 34,597 0 0.00 4,360 -2.50 0.0024
2024-02-14 2023-12-31 13F GENERAC HLDGS COM 368736104 34,597 7,496 27.66 4,473 51.44 0.0027
2023-11-14 2023-09-30 13F GENERAC HLDGS COM 368736104 27,101 5,843 27.49 2,953 -6.85 0.0019
2023-08-14 2023-06-30 13F GENERAC HLDGS COM 368736104 21,258 3,766 21.53 3,170 67.81 0.0020
2023-05-15 2023-03-31 13F GENERAC HLDGS COM 368736104 17,492 -8,652 -33.09 1,889 -28.20 0.0012
2023-02-14 2022-12-31 13F GENERAC HLDGS COM 368736104 26,144 18,099 224.97 2,632 83.47 0.0019
2022-11-14 2022-09-30 13F GENERAC HLDGS COM 368736104 8,045 -280 -3.36 1,434 -18.20 0.0011
2022-08-15 2022-06-30 13F GENERAC HLDGS COM 368736104 8,325 -31,947 -79.33 1,753 -85.36 0.0012
2022-05-16 2022-03-31 13F GENERAC HLDGS COM 368736104 40,272 -125,159 -75.66 11,972 -79.44 0.0058
2022-02-14 2021-12-31 13F GENERAC HLDGS COM 368736104 165,431 136,623 474.25 58,219 394.51 0.0243
2021-11-16 2021-09-30 13F GENERAC HLDGS COM 368736104 28,808 12,254 74.02 11,773 71.29 0.0051
2021-08-16 2021-06-30 13F GENERAC HLDGS COM 368736104 16,554 -23,056 -58.21 6,873 -47.02 0.0029
2021-05-17 2021-03-31 13F GENERAC HLDGS COM 368736104 39,610 -20,476 -34.08 12,972 -5.06 0.0059
2021-02-16 2020-12-31 13F GENERAC HLDGS COM 368736104 60,086 51,952 638.70 13,664 767.56 0.0063
2020-11-16 2020-09-30 13F GENERAC HLDGS COM 368736104 8,134 -919 -10.15 1,575 42.66 0.0008
2020-08-14 2020-06-30 13F GENERAC HLDGS COM 368736104 9,053 -525,829 -98.31 1,104 -97.78 0.0006
2020-05-14 2020-03-31 13F GENERAC HLDGS COM 368736104 534,882 -373,551 -41.12 49,835 -45.46 0.0343
2020-02-18 2019-12-31 13F GENERAC HLDGS COM 368736104 908,433 -442,350 -32.75 91,379 -13.65 0.0468
2019-11-14 2019-09-30 13F GENERAC HLDGS COM 368736104 1,350,783 -116,534 -7.94 105,820 3.90 0.0573
2019-07-31 2019-06-30 13F GENERAC HLDGS COM 368736104 1,467,317 8,206 0.56 101,846 36.25 0.0555
2019-04-30 2019-03-31 13F GENERAC HLDGS COM 368736104 1,459,111 24,219 1.69 74,750 4.82 0.0414
2019-02-06 2018-12-31 13F GENERAC HLDGS COM 368736104 1,434,892 -222,798 -13.44 71,314 -23.74 0.0455
2018-11-09 2018-09-30 13F GENERAC HLDGS COM 368736104 1,657,690 -216,836 -11.57 93,510 -3.57 0.0500
2018-08-10 2018-06-30 13F GENERAC HLDGS COM 368736104 1,874,526 463,226 32.82 96,969 49.66 0.0553
2018-05-14 2018-03-31 13F GENERAC HLDGS COM 368736104 1,411,300 1,309,873 1,291.44 64,793 1,189.93 0.0382
2018-03-12 2017-12-31 13F/A-1 GENERAC HLDGS COM 368736104 101,427 -55,041 -35.18 5,023 -30.11 0.0031
2018-02-09 2017-12-31 13F GENERAC HLDGS COM 368736104 101,427 -55,041 5,023
2017-11-14 2017-09-30 13F GENERAC HLDGS COM 368736104 156,468 -417,400 -72.73 7,187 -65.34 0.0046
2017-08-17 2017-06-30 13F/A-1 GENERAC HLDGS COM 368736104 573,868 573,868 20,734 0.0141
2017-08-14 2017-06-30 13F GENERAC HLDGS COM 368736104 573,868 20,734 0.0142
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.