Edison International
US ˙ NYSE ˙ US2810201077

SecurityEIX / Edison International
InstitutionGAMMA Investing LLC
Latest Disclosed Ownership4,979 shares
Latest Disclosed Value $ 364,363
GAMMA Investing LLC reports 32.14% increase in ownership of EIX / Edison International

On April 6, 2026 - GAMMA Investing LLC filed a 13F-HR form disclosing ownership of 4,979 shares of Edison International (US:EIX) valued at $364,363 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 3,768 shares of Edison International. This represents a change in shares of 32.14% during the quarter. The current value of the position is $365,110 USD.

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)
2026-04-06 2026-03-31 13F EDISON INTL COM Common Stock 281020107 4,979 1,211 32.14 364 61.06 0.0170
2026-01-05 2025-12-31 13F EDISON INTL COM Common Stock 281020107 3,768 477 14.49 226 24.86 0.0114
2025-10-02 2025-09-30 13F EDISON INTL COM Common Stock 281020107 3,291 959 41.12 182 50.83 0.0100
2025-07-14 2025-06-30 13F EDISON INTL COM Common Stock 281020107 2,332 -132 -5.36 120 -17.24 0.0076
2025-04-15 2025-03-31 13F/A-1 EDISON INTL COM Common Stock 281020107 2,464 -946 -27.74 145 -46.69 0.0109
2025-04-07 2025-03-31 13F EDISON INTL COM Common Stock 281020107 145,179 141,769 2 0.0131
2025-01-03 2024-12-31 13F EDISON INTL COM Common Stock 281020107 3,410 803 30.80 272 19.82 0.0232
2024-10-04 2024-09-30 13F EDISON INTL COM Common Stock 281020107 2,607 464 227 0.0225
2024-10-07 2024-09-30 13F EDISON INTL COM Common Stock 281020107 2,607 464 21.65 227 48.37 0.0225
2024-07-02 2024-06-30 13F EDISON INTL COM Common Stock 281020107 2,143 1,117 108.87 154 112.50 0.0210
2024-04-05 2024-03-31 13F EDISON INTL COM Common Stock 281020107 1,026 313 43.90 73 50.00 0.0148
2024-02-01 2023-12-31 13F EDISON INTL COM Common Stock 281020107 713 713 48 0.0130
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.