Enphase Energy, Inc.
CH ˙ SWX ˙ US29355A1079
SecurityCH:ENPH / Enphase Energy, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership18,461,738 shares
Ownership 14.10%
BlackRock, Inc. ownership in ENPH / Enphase Energy, Inc.

2025-10-02 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 18,461,738 shares of Enphase Energy, Inc. (CH:ENPH). This represents 14.1 percent ownership of the company. In their previous filing dated 2025-04-17 , BlackRock, Inc. had reported owning 11,949,877 shares, indicating an increase of 54.49 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-10-02 2025-10-02 13G/A 11,949,877 18,461,738 54.49 14.10 56.67
2025-04-17 2025-04-17 13G/A 15,861,941 11,949,877 -24.66 9.00 -23.08
2024-11-12 2024-11-12 13G/A 15,861,941 15,861,941 0.00 11.70 0.00
2024-10-23 2024-10-23 13G/A 15,861,941 11.70
2024-02-06 2024-02-06 13G/A 14,309,484 14,437,662 0.90 10.60 0.95
2023-02-14 2023-02-14 13G/A 14,133,449 14,309,484 1.25 10.50 0.96
2023-01-26 2023-01-26 13G/A 14,133,449 14,133,449 0.00 10.40 0.00
2023-01-20 2023-01-20 13G/A 14,961,479 14,133,449 -5.53 10.40 -6.31
2022-01-27 2022-01-27 13G/A 14,961,479 14,961,479 0.00 11.10 0.00
2022-01-26 2022-01-26 13G/A 15,010,272 14,961,479 -0.33 11.10 -6.72
2021-02-05 2021-02-05 13G/A 13,033,582 15,010,272 15.17 11.90 15.53
2020-10-09 2020-10-09 13G/A 7,496,510 13,033,582 73.86 10.30 68.85
2020-02-05 2020-02-05 13G/A 5,688,416 7,496,510 31.79 6.10 15.09
2019-02-08 2019-02-08 13G 5,688,416 5,688,416 0.00 5.30 0.00
2019-02-07 2019-02-07 13G 5,688,416 5.30

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F ENPHASE ENERGY COM 29355A107 22,202,913 2,187,646 10.93 839,492 30.87 0.0147
2026-02-12 2025-12-31 13F ENPHASE ENERGY COM 29355A107 20,015,267 985,242 5.18 641,489 -4.75 0.0108
2025-11-12 2025-09-30 13F ENPHASE ENERGY COM 29355A107 19,030,025 6,685,671 54.16 673,473 37.60 0.0118
2025-08-12 2025-06-30 13F ENPHASE ENERGY COM 29355A107 12,344,354 -882,940 -6.68 489,454 -40.37 0.0093
2025-05-02 2025-03-31 13F ENPHASE ENERGY COM 29355A107 13,227,294 -2,538,044 -16.10 820,754 -24.20 0.0172
2025-02-07 2024-12-31 13F ENPHASE ENERGY COM 29355A107 15,765,338 -83,688 -0.53 1,082,763 -39.55 0.0219
2024-11-13 2024-09-30 13F ENPHASE ENERGY COM 29355A107 15,849,026 463,629 3.01 1,791,257 16.76 0.0376
2024-08-13 2024-06-30 13F ENPHASE ENERGY COM 29355A107 15,385,397 328,585 2.18 1,534,078 -15.78 0.0347
2024-05-10 2024-03-31 13F ENPHASE ENERGY COM 29355A107 15,056,812 697,782 4.86 1,821,573 -4.00 0.0424
2024-02-13 2023-12-31 13F ENPHASE ENERGY COM 29355A107 14,359,030 316,853 2.26 1,897,402 12.46 0.0484
2023-11-13 2023-09-30 13F ENPHASE ENERGY COM 29355A107 14,042,177 -160,965 -1.13 1,687,168 -29.07 0.0485
2023-08-11 2023-06-30 13F ENPHASE ENERGY COM 29355A107 14,203,142 -677,909 -4.56 2,378,742 -23.98 0.0656
2023-05-12 2023-03-31 13F ENPHASE ENERGY COM 29355A107 14,881,051 747,309 5.29 3,129,187 -16.44 0.0923
2023-02-13 2022-12-31 13F ENPHASE ENERGY COM 29355A107 14,133,742 -39,571 -0.28 3,744,876 -4.78 0.1173
2022-11-14 2022-09-30 13F ENPHASE ENERGY COM 29355A107 14,173,313 -289,406 -2.00 3,932,670 39.27 0.1338
2022-08-12 2022-06-30 13F ENPHASE ENERGY COM 29355A107 14,462,719 -555,811 -3.70 2,823,700 -6.82 0.0906
2022-05-12 2022-03-31 13F ENPHASE ENERGY COM 29355A107 15,018,530 57,051 0.38 3,030,439 10.72 0.0816
2022-02-10 2021-12-31 13F ENPHASE ENERGY COM 29355A107 14,961,479 1,030,920 7.40 2,737,054 31.01 0.0697
2021-11-09 2021-09-30 13F ENPHASE ENERGY COM 29355A107 13,930,559 300,326 2.20 2,089,165 -16.53 0.0585
2021-08-11 2021-06-30 13F ENPHASE ENERGY COM 29355A107 13,630,233 568,934 4.36 2,502,920 18.17 0.0697
2021-05-07 2021-03-31 13F ENPHASE ENERGY COM 29355A107 13,061,299 -1,948,973 -12.98 2,118,019 -19.58 0.0622
2021-02-05 2020-12-31 13F ENPHASE ENERGY COM 29355A107 15,010,272 1,976,690 15.17 2,633,853 144.68 0.0840
2020-11-06 2020-09-30 13F ENPHASE ENERGY COM 29355A107 13,033,582 3,492,489 36.60 1,076,443 137.17 0.0397
2020-08-14 2020-06-30 13F ENPHASE ENERGY COM 29355A107 9,541,093 844,170 9.71 453,870 61.62 0.0181
2020-05-01 2020-03-31 13F ENPHASE ENERGY COM 29355A107 8,696,923 1,200,413 16.01 280,823 43.36 0.0137
2020-02-13 2019-12-31 13F ENPHASE ENERGY COM 29355A107 7,496,510 254,491 3.51 195,885 21.68 0.0075
2019-11-08 2019-09-30 13F ENPHASE ENERGY COM 29355A107 7,242,019 563,989 8.45 160,989 32.24 0.0068
2019-08-22 2019-06-30 13F/A-1 ENPHASE ENERGY COM 29355A107 6,678,030 930,501 16.19 121,742 129.49 0.0052
2019-08-13 2019-06-30 13F ENPHASE ENERGY COM 29355A107 6,678,030 930,501 121,742
2019-05-09 2019-03-31 13F ENPHASE ENERGY COM 29355A107 5,747,529 59,113 1.04 53,050 97.16 0.0024
2019-02-08 2018-12-31 13F ENPHASE ENERGY COM 29355A107 5,688,416 154,094 2.78 26,907 0.25 0.0014
2018-11-09 2018-09-30 13F ENPHASE ENERGY COM 29355A107 5,534,322 -8,728 -0.16 26,840 -28.05 0.0012
2018-08-09 2018-06-30 13F ENPHASE ENERGY COM 29355A107 5,543,050 4,809,849 656.01 37,305 1,013.25 0.0017
2018-05-09 2018-03-31 13F ENPHASE ENERGY COM 29355A107 733,201 904 0.12 3,351 89.97 0.0002
2018-02-09 2017-12-31 13F ENPHASE ENERGY COM 29355A107 732,297 14,068 1.96 1,764 61.54 0.0001
2017-11-14 2017-09-30 13F ENPHASE ENERGY COM 29355A107 718,229 105,629 17.24 1,092 106.04 0.0001
2017-08-10 2017-06-30 13F ENPHASE ENERGY COM 29355A107 612,600 -7,339 -1.18 530 -37.57 0.0000
2017-05-12 2017-03-31 13F ENPHASE ENERGY COM 29355A107 619,939 619,939 849 0.0000
2016-08-10 2016-06-30 13F ENPHASE ENERGY COM 29355A107 0 -763 -100.00 0 -100.00
2016-05-10 2016-03-31 13F ENPHASE ENERGY COM 29355A107 763 396 107.90 2 100.00 0.0000
2016-02-11 2015-12-31 13F ENPHASE ENERGY COM 29355A107 367 0 0.00 1 0.00 0.0000
2015-11-13 2015-09-30 13F ENPHASE ENERGY COM 29355A107 367 0 0.00 1 -66.67 0.0000
2015-08-07 2015-06-30 13F ENPHASE ENERGY COM 29355A107 367 0 0.00 3 -40.00 0.0000
2015-05-13 2015-03-31 13F ENPHASE ENERGY COM 29355A107 367 0 0.00 5 0.00 0.0000
2015-02-09 2014-12-31 13F ENPHASE ENERGY COM 29355A107 367 367 5 0.0000
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.