13F

Investor

ECP ControlCo, LLC

CIK 0001707921 · filed 2026-05-15 · SEC filing

13F book

$6.34B

Positions

4

1 new · 1 sold

Largest name

97.1%

Constellation Energy Corp · CEG

Est. mark

$25M

Price effect on 3 names still held. Flow $6.11B.
NameTickerSharesValueWeightEst. markChange
Constellation Energy CorpCEG22M$6.16B97.1%New
Pg&E Corp7.12M$125.2M2.0%$10.7MHeld
Shenandoah Telecommunication3.46M$53.3M0.8%$13.3MHeld
Clean Energy Fuels Corp.CLNE2.59M$6.44M0.1%$986KHeld

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.