Summit Midstream Corp
SMC- Exchange
- NYSE
- Industry
- Natural Gas Transmission
- SEC CIK
- 0002024218
In the last 90 days, Summit Midstream Corp insiders filed 0 open-market purchases and 1 sale; 74 institutions reported holding it in 13F filings for Q2 2026, worth $160.9M in total; no superinvestor holds it.
Holders of 5% or more of SMC
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Summit Midstream Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Connect Midstream, LLC | 13D/A | 35.50%6.67M shares | +0.10 ppfrom 35.40% | Aug 28, 20252 filings | Sep 2, 2025 | SEC |
| Invesco Ltd. | 13G/A | 7.80%957.0K shares | +2.50 ppfrom 5.30% | Feb 7, 20252 filings | May 9, 2025 | SEC |
| He Zhengxu | 13G/A | 5.20%936.0K shares | – | Feb 19, 20251 filing | Feb 19, 2025 | SEC |
| BlackRock, Inc. | 13G | 5.00%616.5K shares | New | Jul 17, 20251 filing | Jul 17, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Summit Midstream Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 27, 20261:17 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −5.61 ppfrom 5.61%Below 5% | Mar 13, 2026 | SEC |
| Sep 2, 20256:35 PM ET | Connect Midstream, LLCand 4 others | 13D/A | 35.50%6.67M shares | +0.10 ppfrom 35.40% | Aug 28, 2025 | SEC |
| Aug 28, 20259:09 PM ET | Connect Midstream, LLCand 4 others | 13D/A | 35.40%6.64M shares | – | Aug 26, 2025 | SEC |
| Jul 17, 20258:12 PM ET | BlackRock, Inc. | 13G | 5.00%616.5K shares | New | Jun 30, 2025 | SEC |
| Jun 16, 20254:05 PM ET | Tall Oak Midstream Investments, LLC | 13G/A | 3.87%473.3K shares | –Below 5% | Jun 2, 2025 | SEC |
| May 9, 20252:55 PM ET | Invesco Ltd. | 13G/A | 7.80%957.0K shares | +2.50 ppfrom 5.30% | Mar 31, 2025 | SEC |
| Apr 30, 202511:15 AM ET | Vanguard Group Inc | 13G | 5.61%687.1K shares | New | Mar 31, 2025 | SEC |
| Feb 19, 20259:28 PM ET | He Zhengxu | 13G/A | 5.20%936.0K shares | – | Dec 31, 2024 | SEC |
| Feb 7, 20251:45 PM ET | Invesco Ltd. | 13G/A | 5.30%953.4K shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Summit Midstream Corp shares.
No Form 144 notices for Summit Midstream Corp are on file.