John W. Pietrowicz
CIK 1485050 · Sr MD Chief Financial Officer · last filed 2026-06-11
John W. Pietrowicz is a Sr MD Chief Financial Officer who has filed 61 SEC Form 4 insider transactions across 2 companies since 2010. The most recent filing, for MRX, was dated Jun 11, 2026. Across all open-market trades the lifetime net is −$12.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $16.4M across reported positions.
"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.
$16.36M
2
61
-$11.97M
Holdings By Company
Recent Filings
61 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | MRX | Grant (A) | +2,070 | $0 | EDGAR |
| 2026-06-02 | MRX | Tax (F) | −558 | -$29.5K | EDGAR |
| 2022-09-19 | CME | Mixed | +3,371 | -$256.9K | EDGAR |
| 2022-09-19 | CME | Tax (F) | −446 | -$85.3K | EDGAR |
| 2022-09-15 | CME | Tax (F) | −446 | $0 | EDGAR |
| 2022-03-17 | CME | Mixed | +1,959 | $454.5K | EDGAR |
| 2021-09-17 | CME | Tax (F) | −407 | -$76.8K | EDGAR |
| 2021-09-16 | CME | Mixed | +2,839 | -$288.9K | EDGAR |
| 2021-03-17 | CME | Mixed | +5,592 | $1.17M | EDGAR |
| 2020-12-02 | CME | Mixed | — | -$314.1K | EDGAR |