Insider transactions

ECP ControlCo, LLC

CIK 1707921 · last filed 2025-08-14

ECP ControlCo, LLC is a corporate insider who has filed 10 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing shows the insider bought $3.2M of SHEN on Aug 14, 2025. Across all open-market trades the lifetime net is +$13.8M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $33.7M across reported positions. The firm reports its address in Summit, NJ. 31 SEC filings were submitted jointly with ENERGY CAPITAL PARTNERS IV-A, LP.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure
$33.70M
Companies
3
Total Filings
10
Lifetime Open-Market Net
$13.81M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

SHEN price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
40 BEECHWOOD ROAD
SUMMIT, NJ 07901
Phone
(973) 671-6100
State of Incorporation
DE
Related Filers
ENERGY CAPITAL PARTNERS IV-A, LP — 31 joint filings, latest 2025-09-12
ENERGY CAPITAL PARTNERS IV-B, LP — 31 joint filings, latest 2025-09-12
ENERGY CAPITAL PARTNERS IV-C, LP — 31 joint filings, latest 2025-09-12
ENERGY CAPITAL PARTNERS IV-D, LP — 31 joint filings, latest 2025-09-12
Energy Capital Partners IV, LLC — 31 joint filings, latest 2025-09-12
Energy Capital Partners IV-B (Hill City IP), LP — 31 joint filings, latest 2025-09-12
ENERGY CAPITAL PARTNERS III, LLC — 15 joint filings, latest 2024-09-09
ENERGY CAPITAL PARTNERS III-A, LP — 15 joint filings, latest 2024-09-09
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
SHEN Director 3,281,550 $10.27 $33.70M $13.81M 5 2025-08-14
Custom Truck One Source, Inc. (CTOS.WS) Delisted Director 140,000 $0.01 $924 $0 1 2022-04-05
Custom Truck One Source, Inc. (NSCO.WS) Delisted 10%+ Owner 25,738,988 $2.01 $51.74M $0 2 2020-06-15

Recent Filings

10 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-08-14 SHEN Buy (P) +251,784 $3.17M EDGAR
2025-07-15 SHEN Buy (P) +233,096 $3.53M EDGAR
2025-07-09 SHEN Buy (P) +352,112 $5.13M EDGAR
2025-06-12 SHEN Buy (P) +142,800 $1.98M EDGAR
2024-08-01 SHEN Grant (A) — $0 EDGAR
2022-04-05 Custom Truck One Source, Inc. (CTOS.WS) Delisted Mixed +182,337 $65 EDGAR
2021-02-12 — Buy (P) — $0
2021-02-08 — Buy (P) — $0
2020-06-15 Custom Truck One Source, Inc. (NSCO.WS) Delisted Other (J) — $0 EDGAR
2019-08-01 Custom Truck One Source, Inc. (NSCO.WS) Delisted Mixed −4,216,500 $0 EDGAR
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.