Enphase Energy, Inc.
CH ˙ SWX ˙ US29355A1079
SecurityCH:ENPH / Enphase Energy, Inc.
InstitutionElectron Capital Partners, LLC
Latest Disclosed Ownership488,852 shares
Latest Disclosed Value $ 18,483,495
Electron Capital Partners, LLC ownership in ENPH / Enphase Energy, Inc.

On May 15, 2026 - Electron Capital Partners, LLC filed a 13F-HR form disclosing ownership of 488,852 shares of Enphase Energy, Inc. (CH:ENPH) valued at $18,483,495 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 15, 2025 disclosing 0 shares of Enphase Energy, Inc..

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 ENPHASE ENERGY COM 29355A107 488,852 488,852 18,483 0.7235
2025-05-15 2025-03-31 13F ENPHASE ENERGY COM 29355A107 0 -102,600 -100.00 0 -100.00
2025-02-14 2024-12-31 13F ENPHASE ENERGY COM 29355A107 102,600 -387,621 -79.07 7,047 -87.28 0.3665
2024-11-14 2024-09-30 13F ENPHASE ENERGY COM 29355A107 490,221 353,166 257.68 55,405 305.44 2.6657
2024-08-15 2024-06-30 13F/A-1 ENPHASE ENERGY COM 29355A107 137,055 31,496 29.84 13,666 7.01 0.7029
2024-08-14 2024-06-30 13F ENPHASE ENERGY COM 29355A107 1,183,713 1,078,154 85,002 4.3721
2024-05-15 2024-03-31 13F ENPHASE ENERGY COM 29355A107 105,559 105,559 12,771 0.5599
2023-02-14 2022-12-31 13F ENPHASE ENERGY COM 29355A107 0 -7,717 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ENPHASE ENERGY COM 29355A107 7,717 -183,298 -95.96 2,141 -94.26 0.0943
2022-08-15 2022-06-30 13F ENPHASE ENERGY COM 29355A107 191,015 83,243 77.24 37,294 71.50 1.7510
2022-05-16 2022-03-31 13F ENPHASE ENERGY COM 29355A107 107,772 107,772 21,746 0.8663
2021-08-16 2021-06-30 13F ENPHASE ENERGY COM 29355A107 0 -191,963 -100.00 0 -100.00
2021-05-17 2021-03-31 13F ENPHASE ENERGY COM 29355A107 191,963 42,481 28.42 31,129 18.68 2.1543
2021-02-16 2020-12-31 13F ENPHASE ENERGY COM 29355A107 149,482 -1,028,738 -87.31 26,230 -73.04 1.8004
2020-11-16 2020-09-30 13F ENPHASE ENERGY COM 29355A107 1,178,220 -385,833 -24.67 97,309 30.79 6.7178
2020-08-14 2020-06-30 13F ENPHASE ENERGY COM 29355A107 1,564,053 1,057,476 208.75 74,402 354.86 8.1529
2020-05-15 2020-03-31 13F ENPHASE ENERGY COM 29355A107 506,577 -1,687,281 -76.91 16,357 -71.47 4.2829
2020-02-14 2019-12-31 13F ENPHASE ENERGY COM 29355A107 2,193,858 959,763 77.77 57,326 108.96 6.8495
2019-11-14 2019-09-30 13F ENPHASE ENERGY COM 29355A107 1,234,095 -789,299 -39.01 27,434 -25.62 4.0168
2019-08-14 2019-06-30 13F ENPHASE ENERGY COM 29355A107 2,023,394 -2,641,486 -56.62 36,886 -14.33 5.0169
2019-06-05 2019-03-31 13F/A-2 ENPHASE ENERGY COM 29355A107 4,664,880 -272,076 -5.51 43,057 84.38 5.4919
2019-05-23 2019-03-31 13F/A-1 ENPHASE ENERGY COM 29355A107 4,664,880 0 43,057 4.6156
2019-05-15 2019-03-31 13F ENPHASE ENERGY COM 29355A107 4,664,880 -272,076 43,057
2019-02-14 2018-12-31 13F ENPHASE ENERGY COM 29355A107 4,936,956 2,928,969 145.87 23,352 139.78 3.0527
2018-11-14 2018-09-30 13F ENPHASE ENERGY COM 29355A107 2,007,987 -1,988,512 -49.76 9,739 -63.79 1.4024
2018-08-14 2018-06-30 13F ENPHASE ENERGY COM 29355A107 3,996,499 -243,976 -5.75 26,896 38.79 5.3571
2018-05-15 2018-03-31 13F ENPHASE ENERGY COM 29355A107 4,240,475 1,854 0.04 19,379 89.71 3.6707
2018-02-14 2017-12-31 13F ENPHASE ENERGY COM 29355A107 4,238,621 -70,200 -1.63 10,215 55.98 1.7224
2017-11-14 2017-09-30 13F ENPHASE ENERGY COM 29355A107 4,308,821 0 0.00 6,549 75.72 1.2189
2017-08-14 2017-06-30 13F ENPHASE ENERGY COM 29355A107 4,308,821 582,479 15.63 3,727 -26.99 0.7343
2017-05-15 2017-03-31 13F ENPHASE ENERGY COM 29355A107 3,726,342 3,726,342 5,105 1.5001
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.