undamentalytics Newsletter

Summit Midstream Corp: which funds bought and sold

Institutions that bought and sold Summit Midstream shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 41 institutions that filed 13F reports for both quarters added to or opened positions in Summit Midstream, and 28 cut or closed them. Together they added a net 186K shares, +3.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 114K shares (+23.5%); index fund managers were net sellers of 975 shares (−0.1%). 12 opened a new position and 10 sold out entirely.

Bought, Q2 2026 41 institutions, 12 of them new holders Sold, Q2 2026 28 institutions, 10 of them sold out
Net change, all compared +186K shares (+3.4%)
Net change, active managers +114K shares (+23.5%), 12 bought, 5 sold

Buyers versus sellers

institutions compared, 84
Active managers and hedge funds 12 bought · 5 sold · +114K
Index fund managers 7 bought · 2 sold · −975
Other institutions 22 bought · 21 sold · +73K

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Deltroit Asset Management (UK) LLP +108K +15.3% 815K $23.2M
Citadel Advisors LLC Hedge fund +55K +592.2% 64K $1.8M
Eagle Global Advisors LLC +36K +16.0% 263K $7.5M
Flat Footed LLC +34K +27.6% 159K $4.5M
American Century Companies Inc Active manager +33K +26.7% 155K $4.4M
Susquehanna International Group, LLP +25K +107.0% 48K $1.4M
Xtx Topco Ltd +23K New position 23K $640,971
Franklin Resources Inc Active manager +19K +91.0% 41K $1.2M
Millennium Management LLC Hedge fund +18K New position 18K $508,596
Odyssean, LLC +16K New position 16K $447,620
Geode Capital Management, LLC Index funds +15K +6.3% 248K $7.1M
Algert Global LLC Hedge fund +11K +23.2% 58K $1.6M
Martingale Asset Management L P Active manager +11K New position 11K $308,667
Engineers Gate Manager LP Hedge fund +11K New position 11K $305,049
Vanguard Portfolio Management LLC Index funds +10K +20.3% 60K $1.7M
Valeo Financial Advisors, LLC +9,418 New position 9,418 $268,225
Blackrock, Inc. Index funds +9,233 +1.4% 659K $18.8M
Squarepoint Ops LLC Hedge fund +8,353 New position 8,353 $237,893
Deutsche Bank Ag\ +6,974 +390.3% 8,761 $249,513
Russell Investments Group, Ltd. +6,385 +832.5% 7,152 $203,688

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
ARK & Tlk Investments, LLC −54K −49.0% 56K $1.6M
Charles Schwab Investment Management Inc Index funds −51K −29.5% 123K $3.5M
Jane Street Group, LLC −43K Sold out 0 —
Bank Of America Corp −36K −23.2% 119K $3.4M
Jacobs Levy Equity Management, Inc Active manager −23K Sold out 0 —
Renaissance Technologies LLC Hedge fund −22K Sold out 0 —
Morgan Stanley −15K −16.1% 81K $2.3M
HRT Financial LP −14K Sold out 0 —
Goldman Sachs Group Inc −14K Sold out 0 —
HSBC Holdings PLC −10K Sold out 0 —
Brevan Howard Capital Management LP Hedge fund −9,710 Sold out 0 —
Sei Investments Co −7,589 Sold out 0 —
Nuveen, LLC −6,487 −34.2% 12K $355,089
Vanguard Fiduciary Trust Co Index funds −2,766 −3.9% 69K $2M
Voleon Capital Management LP Hedge fund −2,122 −15.9% 11K $320,058
BNP Paribas Financial Markets −2,005 −12.2% 14K $410,881
Invesco Ltd. −1,896 −0.2% 968K $27.6M
Public Employees Retirement System Of Ohio −1,520 Sold out 0 —
Aquatic Capital Management LLC −1,214 Sold out 0 —
Cetera Investment Advisers −1,100 −1.9% 55K $1.6M

New positions

largest by value
InstitutionSharesValue June 30, 2026
Xtx Topco Ltd 23K $640,971
Millennium Management LLCHedge fund 18K $508,596
Odyssean, LLC 16K $447,620
Martingale Asset Management L PActive manager 11K $308,667
Engineers Gate Manager LPHedge fund 11K $305,049
Valeo Financial Advisors, LLC 9,418 $268,225
Squarepoint Ops LLCHedge fund 8,353 $237,893
Acadian Asset Management LLCActive manager 166 $4,000
Quarry LP 83 $2,364
Integrated Wealth Concepts LLC 17 $484

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Jane Street Group, LLC 43K $1.3M
Jacobs Levy Equity Management, IncActive manager 23K $708,916
Renaissance Technologies LLCHedge fund 22K $679,674
HRT Financial LP 14K $411,000
Goldman Sachs Group Inc 14K $409,843
HSBC Holdings PLC 10K $322,259
Brevan Howard Capital Management LPHedge fund 9,710 $293,630
Sei Investments Co 7,589 $229,491
Public Employees Retirement System Of Ohio 1,520 $45,965
Aquatic Capital Management LLC 1,214 $36,711

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
74
Ten largest holders
72.4%
of 13F-reported shares
Index fund managers
34.4%
of 13F-reported shares
Active managers and hedge funds
10.6%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 12 5 5 3 +114K +23.5%
Index fund managers 7 2 0 0 −975 −0.1%
Other institutions 22 21 7 7 +73K +2.4%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

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