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.
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Disclosed Exposure
$140.22M
Companies
5
Total Filings
74
Lifetime Open-Market Net
$22.59M
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 |
|---|---|---|---|---|---|---|---|
| PAGP | Director | 3,837,646 | $26.27 | $100.81M | $18.03M | 16 | 2025-08-12 |
| NOV | Director | 111,143 | $19.82 | $2.20M | -$391.5K | 21 | 2025-05-22 |
| PAA | Chairman of the Board & CEO | 1,522,850 | $24.43 | $37.20M | $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 2 of 8
74 filingsInsider 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 |
|---|---|---|---|---|---|
| 2020-02-24 | PAGP | Buy (P) | +70,187 | $1.12M | EDGAR |
| 2019-12-27 | PAGP | Exer (M) | +115,000 | $0 | EDGAR |
| 2019-11-20 | PAGP | Buy (P) | +60,000 | $1.03M | EDGAR |
| 2019-05-29 | NOV | Grant (A) | +8,219 | $0 | EDGAR |
| 2018-09-21 | PAGP | Exer (M) | +1,150,000 | $0 | EDGAR |
| 2018-08-16 | PAA | Mixed | +35,568 | -$386.8K | EDGAR |
| 2018-05-14 | NOV | Grant (A) | +4,429 | $0 | EDGAR |
| 2017-08-16 | PAA | Mixed | +34,979 | -$307.8K | EDGAR |
| 2017-08-09 | PAGP | Buy (P) | +50,000 | $1.08M | EDGAR |
| 2017-06-21 | PAGP | Buy (P) | +50,000 | $1.17M | 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.
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.