Enphase Energy, Inc.
CH ˙ SWX ˙ US29355A1079
SecurityCH:ENPH / Enphase Energy, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership339,859 shares
Latest Disclosed Value $ 12,850,009
Rhumbline Advisers reports 2.78% increase in ownership of ENPH / Enphase Energy, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 339,859 shares of Enphase Energy, Inc. (CH:ENPH) valued at $12,850,009 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 330,678 shares of Enphase Energy, Inc.. This represents a change in shares of 2.78% 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)
2026-05-12 2026-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 339,859 9,181 2.78 12,850 21.25 0.0110
2026-02-13 2025-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 330,678 1,627 0.49 10,598 -8.99 0.0086
2025-11-06 2025-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 329,051 23,984 7.86 11,645 -3.72 0.0094
2025-08-12 2025-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 305,067 11,899 4.06 12,096 -33.51 0.0104
2025-05-29 2025-03-31 13F/A-1 ENPHASE ENERGY INC COM COM 29355A107 293,168 33,350 12.84 18,191 1.94 0.0170
2025-04-08 2025-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 293,168 33,350 18,191 0.0170
2025-05-29 2024-12-31 13F/A-1 ENPHASE ENERGY INC COM COM 29355A107 259,818 -40,158 -13.39 17,844 -47.37 0.0160
2025-01-30 2024-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 259,818 -40,158 17,844 0.0160
2024-11-12 2024-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 299,976 -4,339 -1.43 33,903 11.73 0.0306
2024-08-01 2024-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 304,315 -4,804 -1.55 30,343 -18.86 0.0285
2024-05-09 2024-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 309,119 12,383 4.17 37,397 -4.62 0.0359
2024-02-08 2023-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 296,736 1,908 0.65 39,211 10.69 0.0411
2023-11-09 2023-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 294,828 2,453 0.84 35,423 -27.66 0.0411
2023-08-08 2023-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 292,375 27,331 10.31 48,967 88,929.09 0.0548
2023-05-11 2023-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 265,044 15,648 6.27 56 -99.92 0.0688
2023-02-14 2022-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 249,396 7,417 3.07 66,080 -1.58 0.0888
2022-11-10 2022-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 241,979 7,538 3.22 67,142 46.69 0.1000
2022-08-11 2022-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 234,441 17,368 8.00 45,772 4.50 0.0668
2022-05-12 2022-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 217,073 -6,567 -2.94 43,801 7.06 0.0564
2022-02-10 2021-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 223,640 2,015 0.91 40,913 23.09 0.0501
2021-11-12 2021-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 221,625 2,877 1.32 33,237 -17.26 0.0450
2021-08-05 2021-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 218,748 15,645 7.70 40,169 21.96 0.0527
2021-05-06 2021-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 203,103 -114,654 -36.08 32,935 -40.93 0.0447
2021-02-10 2020-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 317,757 -4,591 -1.42 55,757 109.43 0.0770
2020-11-12 2020-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 322,348 62,551 24.08 26,623 115.41 0.0417
2020-08-13 2020-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 259,797 127,853 96.90 12,359 190.12 0.0206
2020-05-06 2020-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 131,944 1,001 0.76 4,260 24.49 0.0089
2020-02-05 2019-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 130,943 4,336 3.42 3,422 21.61 0.0057
2019-10-23 2019-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 126,607 472 0.37 2,814 22.40 0.0051
2019-08-14 2019-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 126,135 -232 -0.18 2,299 97.17 0.0043
2019-05-01 2019-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 126,367 1,052 0.84 1,166 96.63 0.0023
2019-01-31 2018-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 125,315 37,169 42.17 593 38.55 0.0013
2018-11-07 2018-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 88,146 590 0.67 428 -27.33 0.0008
2018-08-06 2018-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 87,556 87,556 589 0.0012
2016-08-11 2016-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 0 -26,361 -100.00 0 -100.00
2016-05-02 2016-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 26,361 0 0.00 61 -34.41 0.0002
2016-02-03 2015-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 26,361 2,525 10.59 93 5.68 0.0003
2015-11-04 2015-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 23,836 1,008 4.42 88 -49.43 0.0003
2015-08-04 2015-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 22,828 6,465 39.51 174 -19.44 0.0006
2015-05-12 2015-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 16,363 2,325 16.56 216 7.46 0.0006
2015-02-06 2014-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 14,038 450 3.31 201 -1.47 0.0006
2014-11-12 2014-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 13,588 75 0.56 204 75.86 0.0006
2014-08-06 2014-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 13,513 370 2.82 116 19.59 0.0003
2014-05-06 2014-03-31 13F ENPHASE ENERGY INC COM COM 29355A107 13,143 -780 -5.60 97 10.23 0.0003
2014-02-03 2013-12-31 13F ENPHASE ENERGY INC COM COM 29355A107 13,923 0 0.00 88 -22.12 0.0003
2013-11-05 2013-09-30 13F ENPHASE ENERGY INC COM COM 29355A107 13,923 -171 -1.21 113 3.67 0.0004
2013-08-07 2013-06-30 13F ENPHASE ENERGY INC COM COM 29355A107 14,094 14,094 109 0.0004
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.