SMC · NYSE · Oil & Gas Midstream

Summit Midstream

Moves gas, oil, and produced water through U.S. shale-basin systems.

$34.08
After-hours close0.00 (0.00%)
At close$34.08(+0.56%)

Breakdown13F · Form 4

Institutions 39.54%5.46M sharesInsiders 5.36%740.7K sharesOther 55.10%7.61M shares

Shares outstanding 13.81M · Float 9.70M · 70.3% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
Tailwater Capital LLC7.89M39.10%13DApr 9, 2026
Connect Midstream, LLC · 10 percent owner1.37M9.90%Form 4Apr 13, 2026
Invesco Ltd.969.4K7.02%13FMay 12, 2026
He Zhengxu936.0K5.20%13GFeb 19, 2025
Deltroit Asset Management (UK) LLP707.1K5.12%13FMay 15, 2026

Institutions13F, as of Mar 31, 2026

77 holders · 5.46M shares · 15 new positions · 38 increased · 24 reduced · 7 closed

HolderShares% outstandingChg q/qFiled
Invesco Ltd.969.4K7.02%−1.7KMay 12, 2026
Deltroit Asset Management (UK) LLP707.1K5.12%0May 15, 2026
BlackRock, Inc.649.4K4.70%−18.9KMay 13, 2026
Vanguard Capital Management LLC506.2K3.66%+506.2KnewMay 15, 2026
Geode Capital Management, LLC233.0K1.69%−5.0KMay 15, 2026
Eagle Global Advisors LLC226.8K1.64%+23.0KMay 15, 2026
State Street Corp178.6K1.29%+22.3KMay 15, 2026
Charles Schwab Investment Management Inc174.3K1.26%−26.6KMay 15, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Tailwater Capital LLCincl. Tailwater Energy Fund III LP, Jason H. Downie +2 more39.10%7.89M13DApr 9, 2026
Invesco Ltd.7.80%957.0K13GMay 9, 2025
He Zhengxu5.20%936.0K13GFeb 19, 2025

InsidersForm 4

InsiderRoleShares% outstandingFiled
Connect Midstream, LLC10 percent owner1.37M9.90%Apr 13, 2026
J. Heath Denekeofficer: Chairman, President and CEO326.5K2.36%Mar 17, 2026
William J. Maultofficer: Executive VP and CFO80.6K0.58%Mar 17, 2026
James David Johnstonofficer: Executive VP, GC, CCO and Secy75.4K0.55%Jul 6, 2026
James Lee Jacobedirector45.7K0.33%Mar 18, 2026
James J. Clearydirector37.0K0.27%Mar 18, 2026
Robert Joseph McNallydirector37.0K0.27%Mar 18, 2026
Matthew B. Sicinskiofficer: Senior VP and CAO36.0K0.26%Mar 17, 2026
Marguerite Woung-Chapmandirector33.3K0.24%Mar 18, 2025
Rommel Oatesdirector26.2K0.19%Mar 18, 2026

2 ten-percent owners hold 7.89M shares by Form 4, outside the officers-and-directors figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Jul 2, 2026
James David Johnstonofficer: Executive VP, GC, CCO and Secy
Sale2,600$29.7275,357
May 19, 2026
Jerry L. Petersdirector
Sale10,000$32.0016,979
Mar 31, 2026
Connect Midstream, LLC10 percent owner
Purchase1,220,918$31.081,367,397
Aug 28, 2025
Connect Midstream, LLC10 percent owner
Purchase26,319$20.89146,479

CongressHouse and Senate disclosures

Not reported.