Matthew B. Sicinski

Companies

• Summit Midstream CorpSenior VP and CAO Aug 2, 2024 to now¹
• Summit Midstream Partners, LPOfficer Feb 17, 2022 to Aug 2, 2024²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• SMSummit Midstream Corp SMC39,505 shares³$1.2M at $30.30Mar 13, 2026
• SMSummit Midstream Partners, LP0 shares⁴Aug 1, 2024

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 13, 2026Shares withheld for tax 773 shares at $30.29 of Summit Midstream Corp³
• Mar 13, 2026Exercised options 3,174 shares of Summit Midstream Corp³
• Mar 13, 2026Shares withheld for tax 368 shares at $30.29 of Summit Midstream Corp³
• Mar 13, 2026Exercised options 1,511 shares of Summit Midstream Corp³
• Mar 13, 2026Shares withheld for tax 1,525 shares at $30.29 of Summit Midstream Corp³
• Mar 13, 2026Exercised options 6,139 shares of Summit Midstream Corp³
• Jan 16, 2026Shares withheld for tax 1,066 shares at $26.81 of Summit Midstream Corp⁵
• Jan 16, 2026Exercised options 3,593 shares of Summit Midstream Corp⁵
• Mar 15, 2025Shares withheld for tax 774 shares at $37.44 of Summit Midstream Corp⁶
• Mar 15, 2025Exercised options 3,175 shares of Summit Midstream Corp⁶
• Mar 15, 2025Shares withheld for tax 617 shares at $37.44 of Summit Midstream Corp⁶
• Mar 15, 2025Exercised options 2,531 shares of Summit Midstream Corp⁶
• Mar 15, 2025Shares withheld for tax 426 shares at $37.44 of Summit Midstream Corp⁶
• Mar 15, 2025Exercised options 1,746 shares of Summit Midstream Corp⁶
• Jan 18, 2025Shares withheld for tax 1,066 shares at $41.57 of Summit Midstream Corp⁷
• Jan 18, 2025Exercised options 3,593 shares of Summit Midstream Corp⁷
• Aug 1, 2024Returned to company 20,658 shares of Summit Midstream Partners, LP⁴
• Aug 1, 2024Granted 20,658 shares of Summit Midstream Corp⁸
• Mar 15, 2024Shares withheld for tax 774 shares at $18.45 of Summit Midstream Partners, LP⁹
• Mar 15, 2024Exercised options 3,175 shares of Summit Midstream Partners, LP⁹
• Mar 15, 2024Shares withheld for tax 493 shares at $18.45 of Summit Midstream Partners, LP⁹
• Mar 15, 2024Exercised options 2,023 shares of Summit Midstream Partners, LP⁹
• Mar 15, 2024Shares withheld for tax 1,989 shares at $18.45 of Summit Midstream Partners, LP⁹
• Mar 15, 2024Exercised options 7,593 shares of Summit Midstream Partners, LP⁹
• Mar 15, 2024Shares withheld for tax 518 shares at $18.45 of Summit Midstream Partners, LP⁹