ALPS ADVISORS INC
Rank #1
2.63%
- Shares
- 27.07M
- Change
- +26.64M
- Change %
- +62.02%
- Filing
- Mar 31, 2026
Increased
Recent
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Top MPLX institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Ownership read
ALPS ADVISORS INC is the largest loaded institutional holder. 41 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
MPLX
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
27.07M
ALPS ADVISORS INC
Insider stance
Net selling
$4.65M sold / — bought
Latest filing
May 15, 2026
Most recent holder or insider filing date
Rows loaded
240
120 holder / 120 insider
Top 120 institutional holders
Ranked by reported share count, with position changes and latest filing dates where the ownership feed supplies them.
ALPS ADVISORS INC
Rank #1
2.63%
Increased
INVESCO LTD.
Rank #2
1.77%
Increased
BLACKSTONE INC.
Rank #3
1.49%
Decreased
TORTOISE CAPITAL ADVISORS
Rank #4
1.29%
Decreased
GOLDMAN SACHS GROUP INC
Rank #5
1.21%
Increased
MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.
Rank #6
0.71%
Increased
KAYNE ANDERSON CAPITAL ADVISORS LP
Rank #7
0.66%
Decreased
UBS GROUP AG
Rank #8
0.51%
Decreased
CHICKASAW CAPITAL MANAGEMENT LLC
Rank #9
0.51%
Decreased
ENERGY INCOME PARTNERS
Rank #10
0.50%
Decreased
MORGAN STANLEY
Rank #11
0.48%
Decreased
JPMORGAN CHASE & CO
Rank #12
0.40%
Increased
BANK OF MONTREAL
Rank #13
0.39%
Increased
FMR LLC
Rank #14
0.33%
Increased
BRAVE WARRIOR ADVISORS
Rank #15
0.32%
Decreased
CIBC PRIVATE WEALTH GROUP LLC
Rank #16
0.26%
Increased
CIBC BANCORP USA INC.
Rank #17
0.26%
Initiated
BANK OF AMERICA CORP
Rank #18
0.25%
Decreased
CLEARBRIDGE INVESTMENTS
Rank #19
0.23%
Unchanged
MILLER HOWARD INVESTMENTS INC
Rank #20
0.22%
Decreased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | ALPS ADVISORS INC | 2.63% | 27.07M | +26.64M Increased | +62.02% | Mar 31, 2026 |
| 2 | 1.77% | 18.27M | +78.73K Increased | +43.00% | Mar 31, 2026 | |
| 3 | BLACKSTONE INC. | 1.49% | 15.35M | -354.80K Decreased | -2.26% | Mar 31, 2026 |
| 4 | TORTOISE CAPITAL ADVISORS | 1.29% | 13.26M | -59.33K Decreased | -45.00% | Mar 31, 2026 |
| 5 | 1.21% | 12.51M | +40.55K Increased | +33.00% | Mar 31, 2026 | |
| 6 | MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | 0.71% | 7.32M | +410.87K Increased | +5.95% | Mar 31, 2026 |
| 7 | KAYNE ANDERSON CAPITAL ADVISORS LP | 0.66% | 6.83M | -400.83K Decreased | -5.55% | Mar 31, 2026 |
| 8 | 0.51% | 5.23M | -71.23K Decreased | -1.34% | Mar 31, 2026 | |
| 9 | CHICKASAW CAPITAL MANAGEMENT LLC | 0.51% | 5.22M | -207.22K Decreased | -3.82% | Mar 31, 2026 |
| 10 | ENERGY INCOME PARTNERS | 0.50% | 5.16M | -142.25K Decreased | -2.68% | Mar 31, 2026 |
| 11 | 0.48% | 4.96M | -798.91K Decreased | -13.86% | Mar 31, 2026 | |
| 12 | 0.40% | 4.13M | +847.52K Increased | +25.79% | Mar 31, 2026 | |
| 13 | BANK OF MONTREAL | 0.39% | 4.03M | +4.02M Increased | — | Mar 31, 2026 |
| 14 | 0.33% | 3.36M | +1.69M Increased | +1.01% | Mar 31, 2026 | |
| 15 | BRAVE WARRIOR ADVISORS | 0.32% | 3.25M | -1.22M Decreased | -27.28% | Mar 31, 2026 |
| 16 | CIBC PRIVATE WEALTH GROUP LLC | 0.26% | 2.72M | +36.11K Increased | +1.34% | Dec 31, 2025 |
| 17 | CIBC BANCORP USA INC. | 0.26% | 2.64M | +2.64M Initiated | — | Mar 31, 2026 |
| 18 | 0.25% | 2.57M | -5.96M Decreased | -69.84% | Mar 31, 2026 | |
| 19 | CLEARBRIDGE INVESTMENTS | 0.23% | 2.34M | — Unchanged | 0.00% | Mar 31, 2026 |
| 20 | MILLER HOWARD INVESTMENTS INC | 0.22% | 2.24M | -76.23K Decreased | -3.29% | Mar 31, 2026 |
Recent insider transactions
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
BREVES, CHRISTINE S
Director
Filed May 15, 2026
HELMS, CHRISTOPHER A
Director
Filed May 15, 2026
SEMPLE, FRANK M
Director
Filed May 15, 2026
STICE, J MICHAEL
Director
Filed May 15, 2026
PEIFFER, GARRY L.
Director
Filed May 15, 2026
WALKER, RAY N JR
Director
Filed May 15, 2026
SURMA, JOHN P
Director
Filed May 15, 2026
PEIFFER, GARRY L.
Director
Filed Apr 30, 2026
WALKER, RAY N JR
Director
Filed Apr 30, 2026
SURMA, JOHN P
Director
Filed Apr 30, 2026
STICE, J MICHAEL
Director
Filed Apr 30, 2026
BREVES, CHRISTINE S
Director
Filed Apr 30, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | BREVES, CHRISTINE S Director | <0.01% | Award / grant | 277 | No cash value | No cash value | May 15, 2026 |
| 2 | HELMS, CHRISTOPHER A Director | <0.01% | Award / grant | 1.42K | No cash value | No cash value | May 15, 2026 |
| 3 | SEMPLE, FRANK M Director | <0.01% | Award / grant | 1.19K | No cash value | No cash value | May 15, 2026 |
| 4 | STICE, J MICHAEL Director | <0.01% | Award / grant | 1.10K | No cash value | No cash value | May 15, 2026 |
| 5 | PEIFFER, GARRY L. Director | <0.01% | Award / grant | 1.30K | No cash value | No cash value | May 15, 2026 |
| 6 | WALKER, RAY N JR Director | <0.01% | Award / grant | 78 | No cash value | No cash value | May 15, 2026 |
| 7 | SURMA, JOHN P Director | <0.01% | Award / grant | 1.66K | No cash value | No cash value | May 15, 2026 |
| 8 | PEIFFER, GARRY L. Director | <0.01% | Award / grant | 2.25K | No cash value | No cash value | Apr 30, 2026 |
| 9 | WALKER, RAY N JR Director | <0.01% | Award / grant | 2.25K | No cash value | No cash value | Apr 30, 2026 |
| 10 | SURMA, JOHN P Director | <0.01% | Award / grant | 2.58K | No cash value | No cash value | Apr 30, 2026 |
| 11 | STICE, J MICHAEL Director | <0.01% | Award / grant | 2.58K | No cash value | No cash value | Apr 30, 2026 |
| 12 | BREVES, CHRISTINE S Director | <0.01% | Award / grant | 2.25K | No cash value | No cash value | Apr 30, 2026 |
Frequently asked
ALPS ADVISORS INC is the largest institutional holder in the loaded MPLX ownership feed, with 27.07 million shares, or about 2.63% of shares outstanding. The table ranks additional institutions by reported share count.
The current TECHi snapshot has 120 loaded institutional rows for MPLX LP. 63 rows are marked increased or initiated, while 45 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
The insider transaction table currently shows 120 loaded Form 4 rows for MPLX, with the latest insider filing dated May 15, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
The loaded MPLX Form 4 rows currently read Net selling: 41 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
MANNEN, MARYANN T. is the most active insider by absolute share movement in the loaded MPLX rows, with 125,001 shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.