PG&E Corporation
CH ˙ BRSE ˙ US69331C1080
SecurityCH:PCG / PG&E Corporation
InstitutionDiameter Capital Partners LP
Latest Disclosed Ownership1,200,000 shares
Latest Disclosed Value $ 21,084,000
Diameter Capital Partners LP ownership in PCG / PG&E Corporation

On May 15, 2026 - Diameter Capital Partners LP filed a 13F-HR form disclosing ownership of 1,200,000 shares of PG&E Corporation (CH:PCG) valued at $21,084,000 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 16, 2020 disclosing 0 shares of PG&E Corporation.

Diameter Capital Partners LP has a history of taking positions in derivatives of the underlying security (PCG) in the form of stock options.

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.

CH:PCG / PG&E Corporation 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)
2026-05-15 2026-03-31 13F PG&E COM 69331C108 1,200,000 1,200,000 21,084 1.9737
2020-11-16 2020-09-30 13F PG&E COM 69331C108 0 -1,750,000 -100.00 0 -100.00
2020-08-14 2020-06-30 13F PG&E COM 69331C108 1,750,000 1,750,000 15,523 1.3858
2020-02-14 2019-12-31 13F PG&E COM 69331C108 0 -384,250 -100.00 0 -100.00
2019-11-14 2019-09-30 13F PG&E COM 69331C108 384,250 -580,750 -60.18 3,843 -82.63 1.3578
2019-08-14 2019-06-30 13F PG&E COM 69331C108 965,000 205,331 27.03 22,118 63.57 4.5052
2019-05-15 2019-03-31 13F PG&E COM 69331C108 759,669 684,669 912.89 13,522 659.24 4.7300
2019-02-14 2018-12-31 13F PG&E COM 69331C108 75,000 -175,000 -70.00 1,781 -84.52 0.8123
2018-11-14 2018-09-30 13F/A-1 PG&E COM 69331C108 250,000 250,000 11,503 1.2000
2018-11-14 2018-09-30 13F PG&E COM 69331C108 250,000 11,503
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
(%)
2024-02-14 2023-12-31 13F PG&E COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F PG&E COM Put 5,000,000 0.00 80,650 -6.66 n/a n/a n/a
2023-08-14 2023-06-30 13F PG&E COM Put 5,000,000 86,400 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.