Enphase Energy, Inc.
MX ˙ BMV ˙ US29355A1079
SecurityMX:ENPH / Enphase Energy, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership85,102 shares
Latest Disclosed Value $ 3,217,706
Citigroup Inc ownership in ENPH / Enphase Energy, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 85,102 shares of Enphase Energy, Inc. (MX:ENPH) valued at $3,217,706 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,432,968 shares of Enphase Energy, Inc.. This represents a change in shares of -94.06% during the quarter.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (ENPH) in the form of stock options. The firm currently holds call options representing 70,000 of underlying shares valued at $2,646,700 USD and put options representing 105,000 of underlying shares valued at $3,970,050 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:ENPH / Enphase Energy, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F ENPHASE ENERGY COM 29355A107 85,102 -1,347,866 -94.06 3,218 -93.00 0.0007
2026-02-13 2025-12-31 13F ENPHASE ENERGY COM 29355A107 1,432,968 -354,925 -19.85 45,927 -27.42 0.0203
2025-11-10 2025-09-30 13F ENPHASE ENERGY COM 29355A107 1,787,893 -142,776 -7.40 63,274 -17.35 0.0282
2025-08-11 2025-06-30 13F ENPHASE ENERGY COM 29355A107 1,930,669 1,559,119 419.63 76,551 232.05 0.0376
2025-05-12 2025-03-31 13F ENPHASE ENERGY COM 29355A107 371,550 51,768 16.19 23,055 4.97 0.0118
2025-02-12 2024-12-31 13F ENPHASE ENERGY COM 29355A107 319,782 76,856 31.64 21,963 -20.01 0.0130
2024-11-12 2024-09-30 13F ENPHASE ENERGY COM 29355A107 242,926 -56,134 -18.77 27,455 -7.93 0.0159
2024-08-12 2024-06-30 13F ENPHASE ENERGY COM 29355A107 299,060 33,503 12.62 29,819 -7.18 0.0191
2024-05-10 2024-03-31 13F ENPHASE ENERGY COM 29355A107 265,557 -164,803 -38.29 32,127 -43.51 0.0211
2024-02-09 2023-12-31 13F ENPHASE ENERGY COM 29355A107 430,360 144,530 50.57 56,868 65.59 0.0401
2023-12-06 2023-09-30 13F/A-1 ENPHASE ENERGY COM 29355A107 285,830 80,005 38.87 34,342 -0.37 0.0257
2023-11-09 2023-09-30 13F ENPHASE ENERGY COM 29355A107 285,830 80,005 34,342 0.0103
2023-08-10 2023-06-30 13F ENPHASE ENERGY COM 29355A107 205,825 65,409 46.58 34,472 16.75 0.0226
2023-05-11 2023-03-31 13F ENPHASE ENERGY COM 29355A107 140,416 -292,224 -67.54 29,527 -74.24 0.0207
2023-02-09 2022-12-31 13F ENPHASE ENERGY COM 29355A107 432,640 24,324 5.96 114,632 1.18 0.0913
2022-11-10 2022-09-30 13F ENPHASE ENERGY COM 29355A107 408,316 206,400 102.22 113,295 187.39 0.0811
2022-08-10 2022-06-30 13F ENPHASE ENERGY COM 29355A107 201,916 21,165 11.71 39,422 8.09 0.0293
2022-05-12 2022-03-31 13F ENPHASE ENERGY COM 29355A107 180,751 -44,603 -19.79 36,472 -11.53 0.0222
2022-02-10 2021-12-31 13F ENPHASE ENERGY COM 29355A107 225,354 53,376 31.04 41,227 59.84 0.0221
2021-11-10 2021-09-30 13F ENPHASE ENERGY COM 29355A107 171,978 -12,655 -6.85 25,792 -23.93 0.0152
2021-08-10 2021-06-30 13F ENPHASE ENERGY COM 29355A107 184,633 -100,675 -35.29 33,905 -26.72 0.0204
2021-05-13 2021-03-31 13F ENPHASE ENERGY COM 29355A107 285,308 -55,649 -16.32 46,265 -22.67 0.0299
2021-02-11 2020-12-31 13F ENPHASE ENERGY COM 29355A107 340,957 303,307 805.60 59,828 1,824.35 0.0353
2020-11-12 2020-09-30 13F ENPHASE ENERGY COM 29355A107 37,650 517 1.39 3,109 76.05 0.0020
2020-08-12 2020-06-30 13F ENPHASE ENERGY COM 29355A107 37,133 7,184 23.99 1,766 82.63 0.0014
2020-05-12 2020-03-31 13F ENPHASE ENERGY COM 29355A107 29,949 9,133 43.87 967 77.76 0.0009
2020-02-12 2019-12-31 13F ENPHASE ENERGY COM 29355A107 20,816 -13,384 -39.13 544 -28.52 0.0004
2019-11-08 2019-09-30 13F ENPHASE ENERGY COM 29355A107 34,200 -14,118 -29.22 761 -13.52 0.0006
2019-08-12 2019-06-30 13F ENPHASE ENERGY COM 29355A107 48,318 -29,531 -37.93 880 22.39 0.0007
2019-05-13 2019-03-31 13F ENPHASE ENERGY COM 29355A107 77,849 149 0.19 719 95.38 0.0007
2019-02-12 2018-12-31 13F ENPHASE ENERGY COM 29355A107 77,700 51,950 201.75 368 194.40 0.0004
2018-11-13 2018-09-30 13F ENPHASE ENERGY COM 29355A107 25,750 6,422 33.23 125 -3.85 0.0001
2018-08-10 2018-06-30 13F ENPHASE ENERGY COM 29355A107 19,328 17,328 866.40 130 1,344.44 0.0001
2018-05-11 2018-03-31 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 9 80.00 0.0000
2018-02-12 2017-12-31 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 5 66.67 0.0000
2017-11-13 2017-09-30 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 3 50.00 0.0000
2017-08-11 2017-06-30 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 2 -33.33 0.0000
2017-05-12 2017-03-31 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 3 50.00 0.0000
2017-02-10 2016-12-31 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 2 0.00 0.0000
2016-11-10 2016-09-30 13F ENPHASE ENERGY COM 29355A107 2,000 0 0.00 2 -50.00 0.0000
2016-08-12 2016-06-30 13F ENPHASE ENERGY COM 29355A107 2,000 -22,751 -91.92 4 -93.10 0.0000
2016-05-13 2016-03-31 13F ENPHASE ENERGY COM 29355A107 24,751 12,411 100.58 58 31.82 0.0001
2016-02-12 2015-12-31 13F ENPHASE ENERGY COM 29355A107 12,340 8,345 208.89 44 193.33 0.0000
2015-11-13 2015-09-30 13F ENPHASE ENERGY COM 29355A107 3,995 733 22.47 15 -40.00 0.0000
2015-08-13 2015-06-30 13F ENPHASE ENERGY COM 29355A107 3,262 3,012 1,204.80 25 733.33 0.0000
2015-05-14 2015-03-31 13F ENPHASE ENERGY COM 29355A107 250 -3,007 -92.32 3 -93.62 0.0000
2015-02-17 2014-12-31 13F ENPHASE ENERGY COM 29355A107 3,257 2,511 336.60 47 291.67 0.0000
2014-11-14 2014-09-30 13F ENPHASE ENERGY COM 29355A107 746 509 214.77 12 500.00 0.0000
2014-08-14 2014-06-30 13F ENPHASE ENERGY COM 29355A107 237 -2,230 -90.39 2 -88.89 0.0000
2014-05-15 2014-03-31 13F ENPHASE ENERGY COM 29355A107 2,467 -64,599 -96.32 18 -95.76 0.0000
2014-02-14 2013-12-31 13F ENPHASE ENERGY COM 29355A107 67,066 65,284 3,663.52 425 2,935.71 0.0004
2013-11-14 2013-09-30 13F ENPHASE ENERGY COM 29355A107 1,782 742 71.35 14 75.00 0.0000
2013-08-14 2013-06-30 13F ENPHASE ENERGY COM 29355A107 1,040 1,040 8 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F ENPHASE ENERGY COM Call 70,000 0.00 2,647 17.97 n/a n/a n/a
2026-02-13 2025-12-31 13F ENPHASE ENERGY COM Call 70,000 -63.16 2,244 -66.64 n/a n/a n/a
2025-11-10 2025-09-30 13F ENPHASE ENERGY COM Call 190,000 6,724 n/a n/a n/a
2024-05-10 2024-03-31 13F ENPHASE ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F ENPHASE ENERGY COM Call 999,700 132,100 n/a n/a n/a
2022-08-10 2022-06-30 13F ENPHASE ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-12 2022-03-31 13F ENPHASE ENERGY COM Call 6,000 1,211 n/a n/a n/a
2021-05-13 2021-03-31 13F ENPHASE ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F ENPHASE ENERGY COM Call 130,300 49.43 22,864 217.47 n/a n/a n/a
2020-11-12 2020-09-30 13F ENPHASE ENERGY COM Call 87,200 -20.87 7,202 37.39 n/a n/a n/a
2020-08-12 2020-06-30 13F ENPHASE ENERGY COM Call 110,200 -31.55 5,242 0.85 n/a n/a n/a
2020-05-12 2020-03-31 13F ENPHASE ENERGY COM Call 161,000 -4.51 5,198 18.00 n/a n/a n/a
2020-02-12 2019-12-31 13F ENPHASE ENERGY COM Call 168,600 46.23 4,405 71.87 n/a n/a n/a
2019-11-08 2019-09-30 13F ENPHASE ENERGY COM Call 115,300 249.39 2,563 325.75 n/a n/a n/a
2019-08-12 2019-06-30 13F ENPHASE ENERGY COM Call 33,000 100.00 602 296.05 n/a n/a n/a
2019-05-13 2019-03-31 13F ENPHASE ENERGY COM Call 16,500 51.38 152 192.31 n/a n/a n/a
2019-02-12 2018-12-31 13F ENPHASE ENERGY COM Call 10,900 91.23 52 85.71 n/a n/a n/a
2018-11-13 2018-09-30 13F ENPHASE ENERGY COM Call 5,700 28 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F ENPHASE ENERGY COM Put 105,000 0.00 3,970 17.98 n/a n/a n/a
2026-02-13 2025-12-31 13F ENPHASE ENERGY COM Put 105,000 0.00 3,365 -9.42 n/a n/a n/a
2025-11-10 2025-09-30 13F ENPHASE ENERGY COM Put 105,000 3,716 n/a n/a n/a
2024-05-10 2024-03-31 13F ENPHASE ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F ENPHASE ENERGY COM Put 25,000 3,304 n/a n/a n/a
2021-05-13 2021-03-31 13F ENPHASE ENERGY COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F ENPHASE ENERGY COM Put 71,400 -21.71 12,529 66.34 n/a n/a n/a
2020-11-12 2020-09-30 13F ENPHASE ENERGY COM Put 91,200 -48.12 7,532 -9.94 n/a n/a n/a
2020-08-12 2020-06-30 13F ENPHASE ENERGY COM Put 175,800 75.10 8,363 157.96 n/a n/a n/a
2020-05-12 2020-03-31 13F ENPHASE ENERGY COM Put 100,400 -6.60 3,242 15.41 n/a n/a n/a
2020-02-12 2019-12-31 13F ENPHASE ENERGY COM Put 107,500 94.39 2,809 128.56 n/a n/a n/a
2019-11-08 2019-09-30 13F ENPHASE ENERGY COM Put 55,300 145.78 1,229 199.76 n/a n/a n/a
2019-08-12 2019-06-30 13F ENPHASE ENERGY COM Put 22,500 492.11 410 1,071.43 n/a n/a n/a
2019-05-13 2019-03-31 13F ENPHASE ENERGY COM Put 3,800 322.22 35 775.00 n/a n/a n/a
2019-02-12 2018-12-31 13F ENPHASE ENERGY COM Put 900 4 n/a n/a n/a
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.