Mark Briffa - 26 Aug 2026 Form 4 Insider Report for Wheels Up Experience Inc. (UP)

Reporting relationship: Chief Sales Officer
Issuer ticker: UP
Reported as of: 26 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 28 Aug 2026, 20:00:11 UTC
Prior SEC filing: 12 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark Sorensen as attorney-in-fact for Mark Briffa

Key filing fact

Mark Briffa filed Form 4 for Wheels Up Experience Inc. (UP) on 28 Aug 2026.

Key facts

This page summarizes Mark Briffa's Form 4 filing for Wheels Up Experience Inc. (UP).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 28 Aug 2026, 20:00.

Change

Previous filing in this sequence was filed on 12 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001967906 Primary reporting owner

Briffa Mark

Relationship: Chief Sales Officer
Address: C/O WHEELS UP EXPERIENCE INC., 2135 AMERICAN WAY, CHAMBLEE
Signature: /s/ Mark Sorensen as attorney-in-fact for Mark Briffa
Signature date: 28 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

UP transaction

Class A Common Stock, par value $0.0001 per share

Tax liability

Transaction value
Shares: -257
Change %: -0.74%
Price: $5.06^*
Shares after: 34,318
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F1, F2

UP transaction

Class A Common Stock, par value $0.0001 per share

Tax liability

Transaction value
Shares: -646
Change %: -1.9%
Price: $5.06^*
Shares after: 33,672
Date: 26 Aug 2026
Ownership: Direct
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents shares of Class A common stock, par value $0.0001 per share ("Common Stock"), of Wheels Up Experience Inc. (the "Issuer") withheld for the payment of tax liability arising as a result of the vesting of restricted stock units ("RSUs") granted under the Wheels Up Experience Inc. 2021 Long-Term Incentive Plan, as amended and restated April 1, 2023 (as amended by Amendment No. 1 thereto, effective April 15, 2024, Amendment No. 2 thereto, effective March 26, 2025, and Amendment No. 3 thereto, effective March 31, 2026, the "A&R 2021 LTIP"), which were originally reported by the Reporting Person in a Form 4 filed with the United States Securities and Exchange Commission ("SEC") on June 7, 2024.

Footnote F2

Reflects the forfeiture of 1,090, 8,190, 8,238 and 27,990 unvested RSUs, for no consideration, pursuant to the Settlement Agreement, dated August 12, 2026, by and between Air Partner Limited (a subsidiary of the Issuer) and Mark Briffa (the "Settlement Agreement"). Such forfeited RSUs were granted under the A&R 2021 LTIP on February 26, 2024, October 2, 2024, February 26, 2025 and February 25, 2026, respectively, in each case pursuant to Rule 16b-3(d) under the Securities Exchange Act of 1934, as amended, and were reported in Table I of the Form 4 or Form 4/A, as applicable, filed with the U.S. Securities and Exchange Commission on June 7, 2024, October 4, 2024, March 14, 2025 and February 27, 2026, respectively. Pursuant to the Settlement Agreement, Mr. Briffa is expected to conclude his service as the Issuer's Chief Sales Officer effective September 1, 2026.

Footnote F3

Represents shares of Common Stock of the Issuer withheld for the payment of tax liability arising as a result of the vesting of RSUs granted under the A&R 2021 LTIP, which were originally reported by the Reporting Person in a Form 4/A filed with the SEC on March 14, 2025.