8-K Impact 6/10 Corporate Action

$SUN · Sunoco LP

September 10, 2026 · AI-analyzed SEC filing

Sunoco LP filed an 8-K disclosing voluntary withdrawal of its common units from NYSE listing and transfer to the Texas Stock Exchange (TXSE). NYSE trading ends at market close October 2, 2026; TXSE trading begins October 5, 2026 under the same ticker SUN. Affiliate SunocoCorp LLC (SUNC) is making the identical move simultaneously.

SUN shares fell 1.86% to $76.34 in the regular session, with an additional 1.50% decline since filing time ($77.50). The modest selloff may reflect uncertainty around liquidity and index inclusion implications of leaving the NYSE for the nascent TXSE.

A $10.4B market-cap energy infrastructure MLP leaving the NYSE for a brand-new exchange is a notable test of TXSE's viability and could influence other Texas-based firms' listing decisions.

Sunoco joins a small but growing cohort of companies migrating listings to the Texas Stock Exchange, a new venue positioning itself as a lower-cost, technology-forward alternative to NYSE and Nasdaq.

Voluntary departure from NYSE could reduce trading liquidity, affect index fund ownership eligibility, and introduce uncertainty around TXSE's still-developing market structure and investor access.

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