HolderBook

ECP ControlCo, LLC

Reported holdings as of Q2 2026, from 31 quarterly filings.

CIK
1707921
Reported value
$4.7B
Positions
5
Top 10 weight
100.0%
Filed
2026-08-14
Days after quarter end
45

Holdings

SecurityTickerValue SharesWeightWeight change Held Change
CONSTELLATION ENERGY CORPCEG$3.6B14,370,22776.45%-20.63pp2q-34.8%-$1.9B
TALEN ENERGY CORPTLN$922.2M2,399,99819.75%-newNEW
PG&E CORPPCG$119.8M7,124,7202.57%+0.59pp22qHELD
SHENANDOAH TELECOMMUNICATIONSHEN$52.1M3,457,1051.12%+0.28pp18qHELD
CLEAN ENERGY FUELS CORPCLNE$5.3M2,594,7590.11%+0.01pp16qHELD

By sector

Industry comes from the SIC code on each company's own SEC filings, which is self-reported and sometimes out of date. Derivative exposure is counted with the shares. Securities the SEC assigns no industry - funds, trusts, foreign issues - are shown as not classified rather than dropped.

Utilities 98.9%Other sectors 1.1%
 
SectorValueShare
Utilities$4.6B98.9%
Other sectors$52.1M1.1%

Quarter by quarter

QuarterValuePositions NewAddedTrimmed ExitedTop 10 Days to file
Q2 2026$4.7B51010100.0%45
Q1 2026$6.3B41001100.0%45
Q4 2025$204.9M40110100.0%48
Q3 2025$251.0M40100100.0%140
Q2 2025$215.3M40100100.0%232
Q1 2025$242.8M41001100.0%323
Q4 2024$259.6M40012100.0%45
Q3 2024$328.6M60021100.0%45
Q2 2024$323.8M70000100.0%45
Q1 2024$362.7M70001100.0%45
Q4 2023$460.6M80011100.0%45
Q3 2023$436.2M90110100.0%45
Q2 2023$496.3M91010100.0%45
Q1 2023$499.4M81000100.0%136
Q4 2022$494.9M70002100.0%45
Q3 2022$497.1M91000100.0%45
Q2 2022$453.6M81100100.0%46
Q1 2022$587.9M73002100.0%46
Q4 2021$6.2B60020100.0%45
Q3 2021$998.1M62000100.0%46
Q2 2021$1.0B41102100.0%47
Q1 2021$1.0B51012100.0%47
Q4 2020$1.3B60020100.0%47
Q3 2020$1.3B63011100.0%47
Q2 2020$787.4M41002100.0%139
Q1 2020$528.8M52000100.0%230
Q4 2019$554.0M30000100.0%321
Q3 2019$587.3M32000100.0%413
Q2 2019$30.0M10000100.0%45
Q1 2019$32.7M10000100.0%45
Q4 2018$27.9M10000100.0%45

Rows marked UNVERIFIED ID, PLACEHOLDER ID, TICKER AS ID or NON-CUSIP ID carry an identifier that is not a valid CUSIP. They are shown because the filer reported that money, but treat the security named with caution - hover the chip for what is wrong with it, and see the methodology.

Held counts consecutive filings in which this manager reported the position, and can reach further back than the quarters listed above: the tabs begin at Q4 2018 because earlier coverage is too sparse to describe a market, but tenure is counted over every filing we hold, some reaching to 2007. A position sold and later rebought starts again from one.

Weight change is the shift in this position's share of the whole book, in percentage points. It is the more useful column: when money flows into or out of a broad fund, almost every holding is bought or sold at once, so added and trimmed largely track flows. A weight that rose while the book shrank is a decision. Both compare with the previous quarter this filer reported, not the previous calendar quarter.