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person · Reporting owner

Sicinski Matthew B.

Disclosed activity across 2 companies

Tapewire entity
60092
SEC CIK
0001911802

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Summit Midstream CorpSMC · Entity 5504Senior VP and CAOMarch 13, 2026March 17, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Summit Midstream Corp

Report date March 13, 2026 · Filed March 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect39,505 Ending reported balance After 2026-03-13 transaction · row 6
6 source rows · reconciled sequence

Row 1 · 2026-03-13 · Exercise / conversion · Acquired 6,139 · Balance 37,486

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

Row 2 · 2026-03-13 · Tax withholding · Disposed 1,525 · Balance 35,961

F2: Common stocks being withheld to pay tax liability.

Row 3 · 2026-03-13 · Exercise / conversion · Acquired 1,511 · Balance 37,472

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

Row 4 · 2026-03-13 · Tax withholding · Disposed 368 · Balance 37,104

F2: Common stocks being withheld to pay tax liability.

Row 5 · 2026-03-13 · Exercise / conversion · Acquired 3,174 · Balance 40,278

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

Row 6 · 2026-03-13 · Tax withholding · Disposed 773 · Balance 39,505

F2: Common stocks being withheld to pay tax liability.

Corporation Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect23,223 Reported balance After 2026-03-13 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2026-03-13 · Exercise / conversion · Disposed 6,139 · Balance 23,223

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

F3: The corporation restricted stock units subject to the original award agreement vested on March 13, 2026. The Reporting Person received distribution equivalent rights ("DERs") for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F4: The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Corporation Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect21,712 Reported balance After 2026-03-13 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2026-03-13 · Exercise / conversion · Disposed 1,511 · Balance 21,712

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

F5: One-third of the corporation restricted stock units (rounded down to the nearest whole number of units, except in the case of the final vesting date) vested on March 13, 2026, with the remaining corporation restricted stock units vesting on the second and third anniversaries of the March 14, 2025, reference date, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person received DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F4: The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Corporation Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect18,538 Reported balance After 2026-03-13 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2026-03-13 · Exercise / conversion · Disposed 3,174 · Balance 18,538

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

F6: The final one-third of the corporation restricted stock units subject to the original award agreement vested on March 13, 2026. The Reporting Person received DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F4: The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Corporation Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect24,230 Reported balance After 2026-03-16 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2026-03-16 · Grant · Acquired 5,692 · Balance 24,230

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

F7: One-third of the corporation restricted stock units (rounded down to the nearest whole number of units, except in the case of the final vesting date) shall vest on each of the first, second and third anniversaries of the March 16, 2026, reference date, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F4: The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Corporation Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect29,712 Reported balance After 2026-03-16 transaction · row 11 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 11 · 2026-03-16 · Grant · Acquired 5,692 · Balance 29,712

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

F8: The corporation restricted stock units shall vest if and to the extent that the corporation restricted stock units are earned during the performance period from January 1, 2026 through December 31, 2028, which will depend on whether the performance criteria are achieved as determined by the committee as soon as reasonably practicable, but no later than sixty (60) days following December 31, 2028, the last day of the Performance Period. The vesting of the corporation restricted stock units is subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F4: The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F9: This total includes corporation restricted stock units from other tranches with different vesting dates. On March 16, 2026, when the original award agreement vested, it was certified at an achievement level of 96.7% of the target number of corporation restricted stock units. The remaining 3.3% of the target corporation restricted stock units that were not earned based on the certified performance level were forfeited. The difference between the number of outstanding awards reflected in the Reporting Person's brokerage account and the number previously reported is attributable to this certification and the corresponding forfeiture of the unearned portion of the original award.

Filing footnotes · ownership attribution and instrument terms

F1: Each corporation restricted stock unit is the economic equivalent of one common stock.

F2: Common stocks being withheld to pay tax liability.

F3: The corporation restricted stock units subject to the original award agreement vested on March 13, 2026. The Reporting Person received distribution equivalent rights ("DERs") for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F4: The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F5: One-third of the corporation restricted stock units (rounded down to the nearest whole number of units, except in the case of the final vesting date) vested on March 13, 2026, with the remaining corporation restricted stock units vesting on the second and third anniversaries of the March 14, 2025, reference date, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person received DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F6: The final one-third of the corporation restricted stock units subject to the original award agreement vested on March 13, 2026. The Reporting Person received DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F7: One-third of the corporation restricted stock units (rounded down to the nearest whole number of units, except in the case of the final vesting date) shall vest on each of the first, second and third anniversaries of the March 16, 2026, reference date, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F8: The corporation restricted stock units shall vest if and to the extent that the corporation restricted stock units are earned during the performance period from January 1, 2026 through December 31, 2028, which will depend on whether the performance criteria are achieved as determined by the committee as soon as reasonably practicable, but no later than sixty (60) days following December 31, 2028, the last day of the Performance Period. The vesting of the corporation restricted stock units is subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive DERs for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.

F9: This total includes corporation restricted stock units from other tranches with different vesting dates. On March 16, 2026, when the original award agreement vested, it was certified at an achievement level of 96.7% of the target number of corporation restricted stock units. The remaining 3.3% of the target corporation restricted stock units that were not earned based on the certified performance level were forfeited. The difference between the number of outstanding awards reflected in the Reporting Person's brokerage account and the number previously reported is attributable to this certification and the corresponding forfeiture of the unearned portion of the original award.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Summit Midstream Partners, LP

Report date August 01, 2024 · Filed August 02, 2024

Section 16 reporting ended · disclosed 2024-08-02. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common UnitsSEC Table I · non-derivativeDirect0 Reported balance After 2024-08-01 transaction · row 1
1 source row

Row 1 · 2024-08-01 · Disposition to issuer · Disposed 20,658 · Balance 0

F1: On August 1, 2024 (the "Effective Time"), in connection with the corporate reorganization of Summit Midstream Partners, LP (the "Partnership"), the Partnership converted from a master limited partnership to a C corporation (the "Corporate Reorganization") through the merger between the Partnership and Summit SMC NewCo, LLC ("Merger Sub"), a wholly-owned subsidiary of Summit Midstream Corporation (the "Corporation"), wherein Merger Sub merged with and into the Partnership (the "Merger"), with the Partnership surviving the Merger as a wholly-owned subsidiary of the Corporation.

F2: After the Effective Time, the Reporting Person holds an aggregate 0 phantom units. This total includes phantom units from other tranches with different vesting dates.

Phantom UnitsSEC Table II · derivative / convertible securityDirect0 Reported balance After 2024-08-01 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2024-08-01 · Disposition to issuer · Disposed 34,938 · Balance 0

F3: Each phantom unit is the economic equivalent of one common unit.

F1: On August 1, 2024 (the "Effective Time"), in connection with the corporate reorganization of Summit Midstream Partners, LP (the "Partnership"), the Partnership converted from a master limited partnership to a C corporation (the "Corporate Reorganization") through the merger between the Partnership and Summit SMC NewCo, LLC ("Merger Sub"), a wholly-owned subsidiary of Summit Midstream Corporation (the "Corporation"), wherein Merger Sub merged with and into the Partnership (the "Merger"), with the Partnership surviving the Merger as a wholly-owned subsidiary of the Corporation.

F4: The phantom units and associated distribution equivalent rights do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Partnership.

F2: After the Effective Time, the Reporting Person holds an aggregate 0 phantom units. This total includes phantom units from other tranches with different vesting dates.

Filing footnotes · ownership attribution and instrument terms

F1: On August 1, 2024 (the "Effective Time"), in connection with the corporate reorganization of Summit Midstream Partners, LP (the "Partnership"), the Partnership converted from a master limited partnership to a C corporation (the "Corporate Reorganization") through the merger between the Partnership and Summit SMC NewCo, LLC ("Merger Sub"), a wholly-owned subsidiary of Summit Midstream Corporation (the "Corporation"), wherein Merger Sub merged with and into the Partnership (the "Merger"), with the Partnership surviving the Merger as a wholly-owned subsidiary of the Corporation.

F2: After the Effective Time, the Reporting Person holds an aggregate 0 phantom units. This total includes phantom units from other tranches with different vesting dates.

F3: Each phantom unit is the economic equivalent of one common unit.

F4: The phantom units and associated distribution equivalent rights do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Partnership.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionPhantom Units · Derivative 867 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · derivative · entry 10

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 866

Underlying: Common Units · 867 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F8 · derivative.exercise_date: One-third of the phantom units subject to the original award agreement vested on March 15, 2023, with the final one-third of the phantom units subject to vesting on the third anniversary of the March 15, 2021 reference date, subject to continued employment. The Reporting Person received DERs for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionPhantom Units · Derivative 2,933 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · derivative · entry 9

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 2,933 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F7 · derivative.exercise_date: The final one-third of the phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) subject to the original award agreement vested on March 15, 2022, on the third anniversary of the March 15, 2020 reference date. The Reporting Person received DERs for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F2 · balance_after: On November 9, 2020, the Issuer effected a 1-for-15 reverse unit split (the "Reverse Unit Split"). Pursuant to the Reverse Unit Split, common unitholders received one common unit for every 15 common units owned at the close of business on November 9, 2020. All fractional units created by the Reverse Unit Split were rounded to the nearest whole unit. The common units began trading on a split-adjusted basis on November 10, 2020. After giving effect to the Reverse Unit Split, the number of issued and outstanding common units decreased to 3,774,992.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 GrantPhantom Units · Derivative 6,349 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · derivative · entry 8

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,349

Underlying: Common Units · 6,349 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F6 · derivative.exercise_date: The phantom units shall vest if and to the extent that the phantom units are earned during the performance period from January 1, 2023 through December 31, 2025, which will depend on whether the performance criteria are achieved as determined by the committee as soon as reasonably practicable, but no later than Friday, March 6, 2026. The vesting of the phantom units is subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive DERs for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 GrantPhantom Units · Derivative 9,524 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · derivative · entry 7

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,524

Underlying: Common Units · 9,524 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F4 · derivative.exercise_date: One-third of the phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) shall vest on each of the first, second and third anniversaries of the March 15, 2023 reference date, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive distribution equivalent rights ("DERs") for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Tax withholdingCommon Units 426 $16.00 $6,816.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · nonDerivative · entry 6

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,285

F3 · shares: Common units being withheld to pay tax liability.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionCommon Units 1,747 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · nonDerivative · entry 5

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,711

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each phantom unit is the economic equivalent of one common unit.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Tax withholdingCommon Units 212 $16.00 $3,392.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · nonDerivative · entry 4

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,964

F3 · shares: Common units being withheld to pay tax liability.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionCommon Units 867 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · nonDerivative · entry 3

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,176

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each phantom unit is the economic equivalent of one common unit.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Tax withholdingCommon Units 715 $16.00 $11,440.00
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · nonDerivative · entry 2

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,309

F3 · shares: Common units being withheld to pay tax liability.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 20:43 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionCommon Units 2,933 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-019934 · doc4.xml · nonDerivative · entry 1

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,024

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each phantom unit is the economic equivalent of one common unit.

F2 · balance_after: On November 9, 2020, the Issuer effected a 1-for-15 reverse unit split (the "Reverse Unit Split"). Pursuant to the Reverse Unit Split, common unitholders received one common unit for every 15 common units owned at the close of business on November 9, 2020. All fractional units created by the Reverse Unit Split were rounded to the nearest whole unit. The common units began trading on a split-adjusted basis on November 10, 2020. After giving effect to the Reverse Unit Split, the number of issued and outstanding common units decreased to 3,774,992.

Read SEC document
December 09, 2022 Filed Dec 13, 2022 16:48 UTC Summit Midstream Partners, LP SMLP · Entity 88532 GrantPhantom Units · Derivative 10,124 $18.99 $192,290.19
Disclosure

SEC source: 0001209191-22-060951 · doc4.xml · derivative · entry 2

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,124

Underlying: Common Units · 10,124 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F2 · kind: The phantom units have been awarded in connection with a compensation agreement approved by the Compensation Committee of the Board of Directors of Summit Midstream GP, LLC (the "Company") on November 29, 2022, permitting executive officers, to forfeit none, 50% or 100% of each vesting tranche of his or her outstanding retention cash component awards granted in each of 2020, 2021 and 2022 in exchange for phantom units to be granted under the Summit Midstream Partners, LP 2022 Long-Term Incentive Plan (the "Plan").

F6 · price: The price for each Phantom Unit was calculated from the volume weighted average price of a common unit of the Company during the three trading days ending on and including the date of grant.

F7 · derivative.exercise_date: Seventy-five percent and twenty-five percent of the phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) shall respectively vest on March 15, 2024 and March 15, 2025, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive DERs for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F4 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F5 · derivative.underlying_shares: The corresponding number of Phantom Units granted pursuant to the Plan was determined by dividing the cash value of the applicable vesting tranche of the cash retention component award forfeited by such participant by the volume weighted average price of a common unit of the Company during the three trading days ending on and including the date of grant. Due to an oversubscription of the phantom units, the Reporting Person received only 98.54% of the phantom units elected.

F8 · balance_after: After giving effect to the transactions reported in this Report, the Reporting Person holds an aggregate 22,053 phantom units. This total includes phantom units from other tranches with different vesting dates.

Read SEC document
December 09, 2022 Filed Dec 13, 2022 16:48 UTC Summit Midstream Partners, LP SMLP · Entity 88532 GrantPhantom Units · Derivative 2,023 $18.99 $38,423.85
Disclosure

SEC source: 0001209191-22-060951 · doc4.xml · derivative · entry 1

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,023

Underlying: Common Units · 2,023 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F2 · kind: The phantom units have been awarded in connection with a compensation agreement approved by the Compensation Committee of the Board of Directors of Summit Midstream GP, LLC (the "Company") on November 29, 2022, permitting executive officers, to forfeit none, 50% or 100% of each vesting tranche of his or her outstanding retention cash component awards granted in each of 2020, 2021 and 2022 in exchange for phantom units to be granted under the Summit Midstream Partners, LP 2022 Long-Term Incentive Plan (the "Plan").

F6 · price: The price for each Phantom Unit was calculated from the volume weighted average price of a common unit of the Company during the three trading days ending on and including the date of grant.

F3 · derivative.exercise_date: The phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) shall vest on March 15, 2024, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive distribution equivalent rights ("DERs") for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F4 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F5 · derivative.underlying_shares: The corresponding number of Phantom Units granted pursuant to the Plan was determined by dividing the cash value of the applicable vesting tranche of the cash retention component award forfeited by such participant by the volume weighted average price of a common unit of the Company during the three trading days ending on and including the date of grant. Due to an oversubscription of the phantom units, the Reporting Person received only 98.54% of the phantom units elected.

Read SEC document
March 15, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionPhantom Units · Derivative 867 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · derivative · entry 7

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,733

Underlying: Common Units · 867 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F8 · derivative.exercise_date: One-third of the phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) subject to the original award agreement vested on March 15, 2022, with the remaining phantom units subject to vesting on the second and third anniversaries of the March 15, 2021 reference date, subject to continued employment. The Reporting Person received DERs for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F6 · balance_after: After giving effect to the transactions reported in this Report, the Reporting Person holds an aggregate 9,906 phantom units.

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March 15, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionPhantom Units · Derivative 2,933 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · derivative · entry 6

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,933

Underlying: Common Units · 2,933 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F7 · derivative.exercise_date: One-third of the phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) subject to the original award agreement vested on March 15, 2022, with the final one-third of the phantom units subject to vesting on the third anniversary of the March 15, 2020 reference date, subject to continued employment. The Reporting Person received DERs for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F2 · balance_after: On November 9, 2020, the Issuer effected a 1-for-15 reverse unit split (the "Reverse Unit Split"). Pursuant to the Reverse Unit Split, common unitholders received one common unit for every 15 common units owned at the close of business on November 9, 2020. All fractional units created by the Reverse Unit Split were rounded to the nearest whole unit. The common units began trading on a split-adjusted basis on November 10, 2020. After giving effect to the Reverse Unit Split, the number of issued and outstanding common units decreased to 3,774,992.

F6 · balance_after: After giving effect to the transactions reported in this Report, the Reporting Person holds an aggregate 9,906 phantom units.

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March 15, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Tax withholdingCommon Units 212 $14.83 $3,143.96
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · nonDerivative · entry 4

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,091

F3 · shares: Common Units being withheld to pay tax liability.

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March 15, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionCommon Units 867 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · nonDerivative · entry 3

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,303

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each phantom unit is the economic equivalent of one common unit.

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March 15, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Tax withholdingCommon Units 715 $14.83 $10,603.45
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · nonDerivative · entry 2

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,436

F3 · shares: Common Units being withheld to pay tax liability.

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March 15, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 Exercise / conversionCommon Units 2,933 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · nonDerivative · entry 1

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,151

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each phantom unit is the economic equivalent of one common unit.

F2 · balance_after: On November 9, 2020, the Issuer effected a 1-for-15 reverse unit split (the "Reverse Unit Split"). Pursuant to the Reverse Unit Split, common unitholders received one common unit for every 15 common units owned at the close of business on November 9, 2020. All fractional units created by the Reverse Unit Split were rounded to the nearest whole unit. The common units began trading on a split-adjusted basis on November 10, 2020. After giving effect to the Reverse Unit Split, the number of issued and outstanding common units decreased to 3,774,992.

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March 14, 2022 Filed Mar 16, 2022 21:34 UTC Summit Midstream Partners, LP SMLP · Entity 88532 GrantPhantom Units · Derivative 5,240 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-019371 · doc4.xml · derivative · entry 5

Sicinski Matthew B. · CIK 0001911802 · See remarks below.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,240

Underlying: Common Units · 5,240 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom unit is the economic equivalent of one common unit.

F4 · derivative.exercise_date: One-third of the phantom units (rounded down to the nearest whole number of units, except in the case of the final vesting date) shall vest on each of the first, second and third anniversaries of the March 15, 2022 Reference Date, subject to continued employment and accelerated vesting as provided in the applicable award agreement. The Reporting Person will receive distribution equivalent rights ("DERs") for each phantom unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the phantom units.

F5 · derivative.expiration_date: The phantom units and associated DERs do not expire. The phantom units are settled upon vesting in common units (on a one-for-one basis) or in cash, at the discretion of the Issuer.

F6 · balance_after: After giving effect to the transactions reported in this Report, the Reporting Person holds an aggregate 9,906 phantom units.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.