ECP ControlCo, LLC

13F Portfolio Filings

Most recent 13F
Q2 2026
13D/G filings
13D on 2 securities, 13G on 3 securities
Location
Summit, NJ
CIK
0001707921
All SEC filings
View on sec.gov
Holdings Value
Quarter Holdings Value ($000) Top Holdings Form Type Date Filed Filing ID
Q2 2026 5 4,668,646 CEG, TLN, PCG, SHEN 13F-HR 8/14/2026 000110465926096451
Q1 2026 4 6,340,634 CEG, PCG, SHEN, CLNE 13F-HR 5/15/2026 000110465926061701
Q4 2025 4 204,907 PCG, XIFR, SHEN, CLNE 13F-HR 2/17/2026 000110465926016279
Q3 2025 4 205,222 PCG, XIFR, SHEN, CLNE RESTATEMENT 2/17/2026 000110465926016295
Q3 2025 1 45,765 XIFR NEW HOLDINGS 2/17/2026 000110465926016298
Q2 2025 4 178,356 PCG, SHEN, XIFR, CLNE RESTATEMENT 2/17/2026 000110465926016293
Q2 2025 1 36,900 XIFR NEW HOLDINGS 2/17/2026 000110465926016294
Q1 2025 4 200,001 PCG, XIFR, SHEN, CLNE RESTATEMENT 2/17/2026 000110465926016290
Q1 2025 1 42,750 XIFR NEW HOLDINGS 2/17/2026 000110465926016292
Q4 2024 4 259,556 PCG, CTOS, SHEN, CLNE 13F-HR 2/14/2025 000110465925013376
Q3 2024 6 328,644 PCG, CTOS, NOVAQ, SHEN 13F-HR 11/14/2024 000110465924118190
Q2 2024 7 323,774 PCG, CTOS, SHEN, NOVAQ 13F-HR 8/14/2024 000110465924089265
Q1 2024 7 362,692 CTOS, PCG, SHEN, NOVAQ 13F-HR 5/15/2024 000110465924061547
Q4 2023 8 460,587 CTOS, PCG, NOVAQ, SHEN 13F-HR 2/14/2024 000110465924022871
Q3 2023 9 436,199 CTOS, PCG, NOVAQ, SHEN 13F-HR 11/14/2023 000110465923117995
Q2 2023 9 496,301 CTOS, NOVAQ, PCG, SHEN 13F-HR 8/14/2023 000110465923091341
Q1 2023 8 499,387 CTOS, PCG, NOVAQ, SHEN RESTATEMENT 8/14/2023 000110465923091382
Q4 2022 1 38,943 SHEN NEW HOLDINGS 4/27/2023 000110465923051417
Q4 2022 6 455,957 CTOS, PCG, NOVAQ, CLNE 13F-HR 2/14/2023 000110465923021013
Q3 2022 1 41,567 SHEN NEW HOLDINGS 4/27/2023 000110465923051413
Q3 2022 1 13,856 CLNE NEW HOLDINGS 2/14/2023 000110465923021070
Q3 2022 7 441,638 NOVAQ, CTOS, PCG, LFG 13F-HR 11/14/2022 000110465922117816
Q2 2022 1 54,442 SHEN NEW HOLDINGS 4/27/2023 000110465923051409
Q2 2022 1 12,258 SUNL NEW HOLDINGS 11/14/2022 000110465922117749
Q2 2022 6 386,901 CTOS, NOVAQ, PCG, LFG 13F-HR 8/15/2022 000110465922090783
Q1 2022 1 50,760 SHEN NEW HOLDINGS 4/27/2023 000110465923051396
Q1 2022 6 537,136 CTOS, NOVAQ, PCG, FSRDQ 13F-HR 5/16/2022 000110465922060790
Q4 2021 6 6,235,273 SMLP, CTOS, NOVAQ, PCG 13F-HR 2/14/2022 000110465922021099
Q3 2021 6 998,114 NOVAQ, CTOS, PCG, METC 13F-HR 11/15/2021 000110465921138515
Q2 2021 4 1,004,261 NOVAQ, CTOS, PCG, METC 13F-HR 8/16/2021 000110465921105707
Q1 2021 5 1,043,195 NOVAQ, NSCO, PCG, EPD 13F-HR 5/17/2021 000110465921067490
Q4 2020 6 1,296,653 NOVAQ, NSCO, VST, FE 13F-HR 2/16/2021 000110465921022769
Q3 2020 2 193,747 VST, EPD NEW HOLDINGS 2/16/2021 000110465921022767
Q3 2020 4 991,035 NOVAQ, FE, NSCO, METC 13F-HR 11/16/2020 000110465920125442
Q2 2020 1 125,892 VST NEW HOLDINGS 2/16/2021 000110465921022765
Q2 2020 3 770,207 NOVAQ, NSCO, METC RESTATEMENT 11/16/2020 000110465920125438
Q2 2020 1 17,151 NVRI NEW HOLDINGS 11/16/2020 000110465920125440
Q1 2020 1 42,625 VST NEW HOLDINGS 2/16/2021 000110465921022762
Q1 2020 4 486,150 NOVAQ, NSCO, METC, EPD RESTATEMENT 11/16/2020 000110465920125439
Q4 2019 3 553,966 NOVAQ, NSCO, METC RESTATEMENT 11/16/2020 000110465920125437
Q3 2019 3 587,274 NOVAQ, NSCO, METC RESTATEMENT 11/16/2020 000110465920125436
Q2 2019 1 29,959 METC 13F-HR 8/14/2019 000110465919045886
Q1 2019 1 32,662 METC 13F-HR 5/15/2019 000110465919029543
Q4 2018 1 27,875 METC 13F-HR 2/14/2019 000110465919008260
Q3 2018 1 42,010 METC 13F-HR 11/14/2018 000110465918068306
Q2 2018 1 39,194 METC 13F-HR 8/14/2018 000110465918051812
Q1 2018 2 233,705 DYN, METC 13F-HR 5/15/2018 000110465918033344
Q4 2017 3 535,082 CPN, DYN, METC 13F-HR 2/14/2018 000110465918009450
Q3 2017 3 486,769 CPN, DYN, METC 13F-HR 11/14/2017 000110465917068454
Additional filings from ECP ControlCo, LLC that have since been restated

13D and 13G Filings

All 13D and 13G filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each security where the latest filing since 12/18/2024 is a 13D, newest first.

Issuer % of Class Filed
Shenandoah Telecommunications Company 13D/A
SHEN · 82312B106
 11.6% 8/12/2025
Event 8/8/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Custom Truck One Source, Inc. 13D/A
CTOS · 23204X103
 0% 2/3/2025
Event 1/30/2025

3 other securities where the latest filing is a 13G, the newest filed 8/7/2026. View all