Gregory Scott Floerke

CIK 1313785 · Ex VP & COO, MPLX GP LLC · last filed 2026-03-03

Gregory Scott Floerke is an Ex VP & COO, MPLX GP LLC who has filed 53 SEC Form 4 insider transactions across 3 companies since 2015. The most recent filing, for MPLX, was dated Mar 3, 2026. Across all open-market trades the lifetime net is −$2.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $18.1M 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.

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Disclosed Exposure

$18.05M

Companies

3

Total Filings

53

Lifetime Open-Market Net

-$2.18M

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
MPC Ex VP & COO, MPLX GP LLC 32,297 $383.00 $12.37M -$1.19M 10 2026-03-03
MPLX Exec. VP and COO 96,134 $59.09 $5.68M -$990.6K 39 2026-03-03
MARKWEST ENERGY PARTNERS L P (MWE) Delisted EVP, Chief Commercial Officer 19,298 $0 2 2015-12-03

Recent Filings

53 filings
Insider 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
2026-03-03 MPLX Mixed +3,094 -$171.3K EDGAR
2026-03-03 MPC Mixed +923 -$166.5K EDGAR
2025-12-16 MPLX Tax (F) −242 -$13.3K EDGAR
2025-12-16 MPC Tax (F) −85 -$15.8K EDGAR
2025-03-04 MPC Mixed +1,124 -$144.8K EDGAR
2025-03-04 MPLX Mixed +2,865 -$171.1K EDGAR
2024-12-17 MPLX Tax (F) −333 -$16.3K EDGAR
2024-12-17 MPC Tax (F) −77 -$11.2K EDGAR
2024-03-05 MPC Mixed +598 -$223.7K EDGAR
2024-03-05 MPLX Mixed +5,047 -$126.6K EDGAR
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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.