Greg L Armstrong
CIK 1184537 · Chairman of the Board & CEO · last filed 2025-08-12
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
PAGP 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 monthDollar 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
latestMost 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
SUITE 1600
HOUSTON, TX 77002
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PAGP | Director | 3,837,646 | $28.45 | $109.20M | $18.03M | 16 | 2025-08-12 |
| NOV | Director | 111,143 | $20.48 | $2.28M | -$391.5K | 21 | 2025-05-22 |
| PAA | Chairman of the Board & CEO | 1,522,850 | $26.45 | $40.28M | $2.80M | 24 | 2018-08-16 |
| PAA NATURAL GAS STORAGE LP (PNG) Delisted | Chairman of the Board & CEO | 0 | — | — | $2.15M | 5 | 2014-01-02 |
| Breitburn Energy Partners LP (BBEP) Delisted | Director | — | — | — | $0 | 8 | 2008-02-19 |
Recent Filings · Page 7 of 8
74 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2008-09-18 | PAA | Buy (P) | +5,000 | $186.8K | EDGAR |
| 2008-05-15 | NOV | Grant (A) | +1,251 | $0 | EDGAR |
| 2008-02-19 | Breitburn Energy Partners LP (BBEP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-01-28 | Breitburn Energy Partners LP (BBEP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2007-11-16 | Breitburn Energy Partners LP (BBEP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2007-08-16 | Breitburn Energy Partners LP (BBEP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2007-06-07 | PAA | Sell (S) | −23,000 | -$1.43M | EDGAR |
| 2007-06-05 | NOV | Grant (A) | +943 | $0 | EDGAR |
| 2007-05-16 | PAA | Mixed | +57,195 | -$2.02M | EDGAR |
| 2007-05-16 | Breitburn Energy Partners LP (BBEP) Delisted | Grant (A) | — | $0 | EDGAR |
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.