Pony AI (PONY) VP Zhang Ning Exercises RSUs and Sells 15,524 Shares

What Happened

• Zhang Ning, Vice President of Pony AI (PONY), had restricted stock units (RSUs) vest and converted (exercise/conversion) them into Class A ordinary shares on Sept 25, 2026 (31,250 RSUs in three lots: 1,250, 10,000 and 20,000). A portion of the vested shares were withheld to satisfy tax obligations (reported as $0 dispositions). Separately, on Sept 28, 2026, Zhang sold 15,524 shares in an open-market transaction at $7.10 per share, generating $110,279. This transaction is a routine insider sale and tax-withholding following RSU vesting rather than a cash purchase.

Key Details

• Transaction dates: RSU conversion (exercise/conversion) 2026-09-25; open-market sale 2026-09-28.
• Open-market sale price: $7.10 per share; total proceeds reported: $110,279.
• RSUs converted/acquired on 9/25: 1,250 + 10,000 + 20,000 = 31,250 shares.
• Shares withheld/surrendered for tax (reported as $0 dispositions tied to the RSU conversion): 31,250 shares.
• Shares sold on market: 15,524 shares (sell-to-cover separate from the $0 tax-withholding entries).
• Shares owned after the transactions: not specified in the filing.
• Filing timeliness: Form 4 filed 2026-09-29 for transactions on 9/25 and 9/28 — appears to be timely (within required two business days).
• Notable footnotes: F1–F3 indicate these were RSUs that vested and settled into Class A shares (each RSU = 1 share); F2 describes a mandatory non-discretionary sell-to-cover to satisfy income tax liabilities; F4–F6 list grant dates and vesting schedules for the awards; F7 notes a grant without an expiration date.

Context

• These were RSU vesting/conversion events (derivative conversion), not an exercise of stock options for cash. The filing shows shares were withheld/surrendered to cover taxes (no cash proceeds) and a separate open-market sale of 15,524 shares for cash — a common, routine outcome of RSU vesting.
• Sales following RSU vesting typically reflect tax-withholding and liquidity needs rather than an explicit signal about company prospects.