# ECP ControlCo, LLC: Form 13F holdings

An institutional investment manager in SUMMIT, NJ. SEC CIK 1707921.

- Quarter ended: 2026-06-30
- Filed: 2026-08-14
- Reported value: $4.67bn
- Positions: 5 (5 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1707921/000110465926096451/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [CONSTELLATION ENERGY CORP (CEG)](/companies/ceg.md) | COM | $3.57bn | 76.4% | 14,370,227 |  | Reduced −7,673,497 |
| [TALEN ENERGY CORP (TLN)](/companies/tln.md) | COM | $922.2m | 19.8% | 2,399,998 |  | New +2,399,998 |
| [PG&E CORP (PCG)](/companies/pcg.md) | COM | $119.8m | 2.6% | 7,124,720 |  | Unchanged |
| [SHENANDOAH  TELECOMMUNICATION (SHEN)](/companies/shen.md) | COM | $52.1m | 1.1% | 3,457,105 |  | Unchanged |
| [CLEAN ENERGY  FUELS CORP (CLNE)](/companies/clne.md) | COM | $5.3m | 0.1% | 2,594,759 |  | Unchanged |

Source: SEC EDGAR, Form 13F-HR, accession 0001104659-26-096451. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.