Heather Cox

Rank #11,998 SEC EDGAR (United States) ↗ Files from United States

Details

Member of the boardUtilitiesNRGSEC CIK 0001734706

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset as of Sep 7, 2026. How we calculate this.

Disclosed holdings

$5.0M

priced as of Sep 7, 2026

1-day change

▲ 6.42%

as of Sep 7, 2026

Positions on file

issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 1 currently disclosed position would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$4.7M – $7.5M2026-09-04

Insider activity May 1, 2024 – Feb 2, 2026

Heather Cox is recorded in filings to the U.S. SEC via EDGAR as member of the board, and reported 13 transactions between May 1, 2024 and Feb 2, 2026. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)

$37.8K

1 purchase on file priced rows only

Open-market sales (code S)

None

0 sales on file

All reported transactions

every code, including awards and exercises

Pattern

Bought and sold in similar amounts

last 12 months of the window

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 13 most recent rows are grouped into 13 lines by date, company and transaction type — open a line to see every lot with its own source link.

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

Feb 2, 2026 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 81 shares $0 at $0.00 SEC filing ↗
Nov 3, 2025 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 64 shares $0 at $0.00 SEC filing ↗
Aug 1, 2025 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 66 shares $0 at $0.00 SEC filing ↗
Jun 1, 2025 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 1,149 shares $0 at $0.00 SEC filing ↗
May 1, 2025 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 93 shares $0 at $0.00 SEC filing ↗
Feb 3, 2025 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 103 shares $0 at $0.00 SEC filing ↗
Jan 13, 2025 Gryphon Digital Mining, Inc. GRYP P Open-market purchase 96,824 shares $37.8K at $0.39 SEC filing ↗
Nov 1, 2024 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 112 shares $0 at $0.00 SEC filing ↗
Oct 31, 2024 Gryphon Digital Mining, Inc. GRYP A Grant or awardnot a buy/sell decisionreported at zero 264,080 shares $0 at $0.00 SEC filing ↗
Aug 26, 2024 Gryphon Digital Mining, Inc. GRYP A Grant or awardnot a buy/sell decisionreported at zero 14,035 shares $0 at $0.00 SEC filing ↗
Aug 1, 2024 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 132 shares $0 at $0.00 SEC filing ↗
Jun 1, 2024 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 2,334 shares $0 at $0.00 SEC filing ↗
May 1, 2024 NRG ENERGY, INC. NRG A Grant or awardnot a buy/sell decisionreported at zero 150 shares $0 at $0.00 SEC filing ↗

Disclosed holdings priced as of Sep 7, 2026

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer	Ticker	Security	Shares	Close	Value	Form	Reported	Filing
NRG ENERGY, INC.	NRG	Common Stock, par value $.01 per share	42,110	$119.02as of Sep 4, 2026	$5.0M	4	Feb 2, 2026	EDGAR ↗
American Bitcoin Corp.	ABTC	Common Stock	138,928	—	—	4	Jan 13, 2025	EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Heather Cox reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Alexander J Pourbaix Board Member · NRG ENERGY, INC.
Alexandra Pruner Board Member · NRG ENERGY, INC.
Anne C Schaumburg Board Member · NRG ENERGY, INC.
Antonio Carrillo CEO · NRG ENERGY, INC.
Brad Bentley President · NRG ENERGY, INC.
Brian Curci General Counsel · NRG ENERGY, INC.
Bruce Chung CFO · NRG ENERGY, INC.
Dak Liyanearachchi EVP · NRG ENERGY, INC.
David Nanus Board Member · NRG ENERGY, INC.
Elisabeth B Donohue Board Member · NRG ENERGY, INC.
Kevin Howell Board Member · NRG ENERGY, INC.
Lawrence S. Coben CEO · NRG ENERGY, INC.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.