UP Insider Mark Briffa Discloses RSU Tax Withholding and August Sales
Rhea-AI Filing Summary
Mark Briffa, Chief Sales Officer of Wheels Up Experience Inc. (UP), reported multiple transactions in Class A common stock in late August 2025. On 08/26/2025 5,127 shares were withheld to satisfy tax obligations from previously reported restricted stock unit vesting. Also on 08/26/2025 he sold 5,780 shares at a weighted average price of $3.00 (individual trade prices ranged $3.00–$3.03), and on 08/28/2025 he sold another 5,780 shares at a weighted average price of $2.96 (trade prices ranged $2.95–$2.99). Following these transactions, the Form 4 reports 1,069,157 shares beneficially owned directly by the reporting person.
Positive
- Full disclosure of price ranges for the sales and an undertaking to provide detailed per-trade information upon request
- Tax withholding from RSU vesting is clearly identified and tied to a prior Form 4 filing
Negative
- None.
Insights
TL;DR: Insider reported small tax-withholding and two modest open-market sales totaling 11,560 shares, leaving 1,069,157 shares held.
The transactions include a tax-withholding of 5,127 shares tied to prior RSU vesting and two sales of 5,780 shares each on 08/26/2025 and 08/28/2025 at weighted average prices of $3.00 and $2.96, respectively. These are executed open-market dispositions rather than derivative exercises. The filings provide precise per-trade price ranges and commit to furnish details on specific prices if requested.
TL;DR: Form 4 discloses routine insider withholding for taxes and subsequent sales; documentation includes price ranges and a pledge to provide trade breakdowns on request.
The Form 4 is complete in disclosing the nature of the withholding (tax payment from RSU vesting originally reported 06/07/2024) and shows direct ownership. The reporting signature is by an attorney-in-fact, with dates provided. No amendments or additional arrangements (e.g., 10b5-1 plan) are indicated on the form.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock, par value $0.0001 per share | 5,780 | $2.96 | $17K |
| Tax Withholding | Class A Common Stock, par value $0.0001 per share | 5,127 | $3.00 | $15K |
| Sale | Class A Common Stock, par value $0.0001 per share | 5,780 | $3.00 | $17K |
Footnotes (1)
- Represents shares withheld for payment of tax liability arising as a result of the vesting of restricted stock units originally reported by the Reporting Person in a Form 4 filed with the United States Securities and Exchange Commission ("SEC") on June 7, 2024. The price reported in this box in Column 4 is a weighted average price. These shares were sold on August 26, 2025 in multiple transactions at prices ranging from $3.00 to $3.03 per share, inclusive. The Reporting Person undertakes to provide to Wheels Up Experience Inc. (the "Company"), any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price. The price reported in this box in Column 4 is a weighted average price. These shares were sold on August 28, 2025 in multiple transactions at prices ranging from $2.95 to $2.99 per share, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price.
