Enphase Energy, Inc.
MX ˙ BMV ˙ US29355A1079
SecurityMX:ENPH / Enphase Energy, Inc.
InstitutionMarathon Capital Management
Latest Disclosed Ownership57,368 shares
Latest Disclosed Value $ 2,169,084
Marathon Capital Management reports 0.31% increase in ownership of ENPH / Enphase Energy, Inc.

On May 14, 2026 - Marathon Capital Management filed a 13F-HR form disclosing ownership of 57,368 shares of Enphase Energy, Inc. (MX:ENPH) valued at $2,169,084 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 57,188 shares of Enphase Energy, Inc.. This represents a change in shares of 0.31% 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)
2026-05-14 2026-03-31 13F ENPHASE ENERGY COM 29355A107 57,368 180 0.31 2,169 18.40 0.4872
2026-01-29 2025-12-31 13F ENPHASE ENERGY COM 29355A107 57,188 -870 -1.50 1,833 -10.81 0.3944
2025-11-14 2025-09-30 13F ENPHASE ENERGY COM 29355A107 58,058 2,225 3.99 2,055 -7.18 0.4702
2025-08-14 2025-06-30 13F ENPHASE ENERGY COM 29355A107 55,833 -2,765 -4.72 2,214 -39.14 0.5638
2025-05-15 2025-03-31 13F ENPHASE ENERGY COM 29355A107 58,598 -270 -0.46 3,636 -10.07 0.9684
2025-02-14 2024-12-31 13F ENPHASE ENERGY COM 29355A107 58,868 1,050 1.82 4,043 -38.12 1.0098
2024-11-14 2024-09-30 13F ENPHASE ENERGY COM 29355A107 57,818 -530 -0.91 6,535 12.33 1.5842
2024-08-14 2024-06-30 13F ENPHASE ENERGY COM 29355A107 58,348 -13,145 -18.39 5,818 -32.74 1.4827
2024-05-15 2024-03-31 13F ENPHASE ENERGY COM 29355A107 71,493 207 0.29 8,649 -8.17 2.0639
2024-02-14 2023-12-31 13F/A-1 ENPHASE ENERGY COM 29355A107 71,286 30 0.04 9,420 10.02 2.3677
2024-02-08 2023-12-31 13F ENPHASE ENERGY COM 29355A107 71,286 30 9,420 2.3677
2023-11-14 2023-09-30 13F ENPHASE ENERGY COM 29355A107 71,256 -1,410 -1.94 8,561 -29.65 2.1544
2023-08-15 2023-06-30 13F/A-1 ENPHASE ENERGY COM 29355A107 72,666 -9,515 -11.58 12,170 -29.58 3.0042
2023-08-14 2023-06-30 13F ENPHASE ENERGY COM 29355A107 72,666 -9,515 12,170 2.9481
2023-05-12 2023-03-31 13F ENPHASE ENERGY COM 29355A107 82,181 2,865 3.61 17,281 -17.77 4.2523
2023-02-14 2022-12-31 13F ENPHASE ENERGY COM 29355A107 79,316 -780 -0.97 21,016 -5.44 5.7926
2022-11-14 2022-09-30 13F Enphase Energy COM 29355A107 80,096 32,032 66.64 22,224 136.83 6.3490
2022-08-12 2022-06-30 13F Enphase Energy COM 29355A107 48,064 -295 -0.61 9,384 -3.83 3.0314
2022-05-13 2022-03-31 13F Enphase Energy COM 29355A107 48,359 -8,136 -14.40 9,758 -5.58 2.8010
2022-02-09 2021-12-31 13F Enphase Energy COM 29355A107 56,495 -1,970 -3.37 10,335 17.87 2.4218
2021-11-15 2021-09-30 13F Enphase Energy COM 29355A107 58,465 -1,565 -2.61 8,768 -20.46 1.9905
2021-08-16 2021-06-30 13F Enphase Energy COM 29355A107 60,030 -6,500 -9.77 11,023 2.18 2.5518
2021-05-14 2021-03-31 13F Enphase Energy COM 29355A107 66,530 -1,045 -1.55 10,788 -9.02 2.8440
2021-02-08 2020-12-31 13F Enphase Energy COM 29355A107 67,575 -27,245 -28.73 11,857 51.41 3.4948
2020-11-16 2020-09-30 13F Enphase Energy COM 29355A107 94,820 -25,265 -21.04 7,831 37.10 2.8506
2020-08-14 2020-06-30 13F Enphase Energy COM 29355A107 120,085 -74,580 -38.31 5,712 -9.12 2.1940
2020-05-15 2020-03-31 13F Enphase Energy COM 29355A107 194,665 -143,400 -42.42 6,285 -28.85 2.8856
2020-02-14 2019-12-31 13F Enphase Energy COM 29355A107 338,065 1,790 0.53 8,833 18.17 3.0038
2019-11-13 2019-09-30 13F Enphase Energy COM 29355A107 336,275 -76,711 -18.57 7,475 -0.70 3.0147
2019-07-25 2019-06-30 13F Enphase Energy COM 29355A107 412,986 -37,489 -8.32 7,528 81.09 3.0701
2019-05-15 2019-03-31 13F Enphase Energy COM 29355A107 450,475 7,775 1.76 4,157 98.61 1.8566
2019-02-07 2018-12-31 13F Enphase Energy COM 29355A107 442,700 442,700 2,093 1.0389
2016-05-13 2016-03-31 13F Enphase Energy EQ 29355A107 0 -31,500 -100.00 0 -100.00
2016-02-12 2015-12-31 13F Enphase Energy EQ 29355A107 31,500 -5,000 -13.70 110 -18.52 0.0582
2015-11-12 2015-09-30 13F Enphase Energy COM 29355A107 36,500 18,000 97.30 135 -4.26 0.0686
2015-08-11 2015-06-30 13F Enphase Energy COM 29355A107 18,500 18,500 141 0.0650
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.