Michael A Heim
CIK 1387730 · Vice Chairman of the Board · last filed 2026-01-20
Michael A Heim is a Vice Chairman of the Board who has filed 37 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider was granted $200.0K of PSX on Jan 20, 2026. Across all open-market trades the lifetime net is −$21.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $54.2M across reported positions. 31 SEC filings were submitted jointly with Targa Resources Investments Inc.
"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.
TRGP 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
1000 LOUISIANA STREET, SUITE 4300
HOUSTON, TX 77002
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PSX | Director | 13,484 | $293.17 | $3.95M | $126.0K | 3 | 2026-01-20 |
| TRGP | Vice Chairman of the Board | 170,416 | $294.90 | $50.26M | -$21.28M | 29 | 2019-03-04 |
| Targa Resources Partners LP (NGLS) Delisted | President and COO | 0 | — | — | $168.5K | 5 | 2016-02-19 |
Recent Filings
37 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-20 | PSX | Grant (A) | +1,423 | $200.0K | EDGAR |
| 2025-08-01 | PSX | Buy (P) | +1,000 | $126.0K | EDGAR |
| 2025-06-10 | PSX | Grant (A) | +1,043 | $118.9K | EDGAR |
| 2019-03-04 | TRGP | Tax (F) | −7,456 | -$300.0K | EDGAR |
| 2019-01-22 | TRGP | Mixed | −19,241 | -$1.04M | EDGAR |
| 2018-07-03 | TRGP | Tax (F) | −4,638 | -$229.5K | EDGAR |
| 2018-01-17 | TRGP | Mixed | +17,984 | -$122.6K | EDGAR |
| 2017-07-05 | TRGP | Tax (F) | −3,176 | -$143.6K | EDGAR |
| 2017-03-02 | TRGP | Grant (A) | +5,717 | $0 | EDGAR |
| 2017-01-20 | TRGP | Mixed | −12,129 | -$1.50M | 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.