SCHEDULE 13G

Jersey Mike's Subs Inc

Class A Common Stock, par value $0.0001 per share · CUSIP: 47668J102

Event date: 2026-09-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Submarine Buyer LLC

  Shares: 45,098,440.00 · Class: 16.2%

• Boardwalk II Aggregator L.P.

  Shares: 127,510,094.00 · Class: 54.6%

• Boardwalk ML Holdco I L.P.

  Shares: 12,195,261.00 · Class: 5.0%

• Boardwalk ML Holdco II L.P.

  Shares: 42,725,975.00 · Class: 18.3%

• Boardwalk ML Holdco I GP LLC

  Shares: 12,195,261.00 · Class: 5.0%

• Boardwalk ML Holdco II GP LLC

  Shares: 42,725,975.00 · Class: 18.3%

• Boardwalk ML Holdco III L.P.

  Shares: 32,903,179.00 · Class: 12.4%

• Boardwalk ML Holdco IV L.P.

  Shares: 84,784,113.00 · Class: 36.3%

• Boardwalk I UNLV Holdco LP

  Shares: 8,316,069.00 · Class: 3.4%

• Boardwalk II UNLV Holdco LP

  Shares: 32,385,190.00 · Class: 13.9%

• Boardwalk BXPE Holdco LP

  Shares: 27,241,928.00 · Class: 11.7%

• Boardwalk ML Holdco III GP LLC

  Shares: 32,903,179.00 · Class: 12.4%

• Boardwalk ML Holdco IV GP LLC

  Shares: 84,784,113.00 · Class: 36.3%

• Submarine Buyer Holdco LLC

  Shares: 45,098,440.00 · Class: 16.2%

• Boardwalk I Aggregator L.P.

  Shares: 45,098,440.00 · Class: 16.2%

• BCP 9 Holdings Manager L.L.C.

  Shares: 240,551,721.00 · Class: 83.9%

• Blackstone Management Associates IX L.P.

  Shares: 240,551,721.00 · Class: 83.9%

• BMA IX L.L.C.

  Shares: 240,551,721.00 · Class: 83.9%

• Blackstone Holdings II L.P.

  Shares: 240,551,721.00 · Class: 83.9%

• Blackstone Holdings I/II GP L.L.C.

  Shares: 240,551,721.00 · Class: 83.9%

• Blackstone Inc.

  Shares: 240,551,721.00 · Class: 83.9%

• Blackstone Group Management L.L.C.

  Shares: 240,551,721.00 · Class: 83.9%

• Stephen A. Schwarzman

  Shares: 240,551,721.00 · Class: 83.9%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.