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Douglass Winthrop Advisors, LLC

Position in MPLX — Mplx LP

CIK 1308527 NEW YORK, NY

Position in MPLX

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$216,866
+$14,060 QoQ
Shares Held
3,800
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2023
10 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MPLX Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Midstream

Energy · as of Mar 31, 2026

Douglass Winthrop Advisors, LLC holds $3,714,437 across 7 Oil & Gas Midstream names. MPLX ranks #7 (5.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 MPLX
Mplx LP
This page
3,800 $216,866

All Filings in MPLX

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10 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $216,866 3,800
2025-12-31 $202,806 3,800
2025-06-30 $298,758 5,800
2025-03-31 $310,416 5,800
2024-12-31 $277,588 5,800
2024-09-30 $257,868 5,800
2024-06-30 $247,022 5,800
2024-03-31 $324,168 7,800
2023-12-31 $212,976 5,800
2023-09-30 $206,306 5,800