Mault William J. 4

Accession 0002024218-26-000009

CIK 0002024218other

Filed

Jan 20, 7:00 PM ET

Accepted

Jan 21, 6:56 PM ET

Size

9.2 KB

Accession

0002024218-26-000009

AI-generated summary of this filing

Updated Jan 21, 2026

Summit Midstream (SMC) CFO William Mault Receives 10,121 Shares

What Happened

William J. Mault, Executive VP and CFO of Summit Midstream Corp, had one tranche of corporation restricted stock units (CRSUs) vest on January 16, 2026, resulting in the conversion/settlement of 10,121 units into common shares. To satisfy tax withholding, 2,757 shares were withheld at $26.81 per share, totaling $73,915. This was a vesting/settlement event (not an open-market purchase or sale).

Key Details

Transaction date: January 16, 2026.
Shares converted/issued: 10,121 CRSUs settled into common shares (one-for-one per footnote).
Tax withholding: 2,757 shares withheld at $26.81/share = $73,915.
Shares owned after transaction: not specified in the provided data.
Notable footnotes:
- F1/F4: Each CRSU equals one common share on settlement; CRSUs and associated DERs do not expire and may be settled in stock or cash at the issuer’s discretion.
- F2: Common stock was withheld to pay the tax liability.
- F3: One‑third of the award vested on Jan 16, 2026; remaining CRSUs vest on the third anniversary of the Jan 18, 2024 grant date (Jan 18, 2027), subject to continued employment. DERs provide payment of accrued distributions on vesting.
- F5: Total includes CRSUs from other tranches with different vesting dates.
Timeliness: The Form 4 was filed on Jan 21, 2026 for a Jan 16 transaction; this filing appears to be late by one business day.

Context

This was a routine vesting/settlement of restricted stock units with shares withheld for taxes (common practice), not a market buy or sell that indicates a trading decision. For derivative/vesting events like this, the economic result is receipt of shares (net of withholding) rather than an outright purchase or sale.

Form 4

Period: 2026-01-16

Executive VP and CFO

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-01-16+10,121→ 73,345 total
Tax Payment
Common Stock
[F2]
2026-01-16$26.81/sh−2,757$73,915→ 70,588 total
Exercise/Conversion
Corporation Restricted Stock Units
[F1][F3][F4][F5]
2026-01-16−10,121→ 84,746 total
→ Common Stock (10,121 underlying)

Footnotes (5)

[F1]Each corporation restricted stock unit is the economic equivalent of one common stock.
[F2]Common stocks being withheld to pay tax liability.
[F3]One-third of the corporation restricted stock units subject to the original award agreement vested on January 16, 2026, with the remaining corporation restricted stock units subject to vesting on the third anniversary of the January 18, 2024 reference date, subject to continued employment. 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]This total includes corporation restricted stock units from other tranches with different vesting dates.

Signature

/s/ James D. Johnston, Attorney-in-Fact for William J. Mault|2026-01-21

1 file

Summit Midstream Corp

CIK 0002024218

Entity typeother