A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 6 filings in this group are Form 4s for VinFast Auto Ltd.
The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.
Across the 6 insider filings shown, the breakdown is 5 other reported transaction and 1 open-market sale. 1 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Open-market sale
Tax / Compensation Filing
2026-10-06
VFS insider Form 4 filed for equity award, exercise, or tax withholding
Vuong Pham Nhat (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
derivative · FVN Series 1A Pref Shares - Call Option (obligated to sell)
|
479,745,716 |
— |
— |
S |
Open-market sale
derivative · FVN Series 1B Pref Shares - Call Option (obligated to sell)
|
101,166,305 |
— |
— |
S |
Open-market sale
derivative · FVN Series 3A Pref Shares - Call Option (obligated to sell)
|
3,656,758,902 |
— |
— |
S |
Open-market sale
derivative · FVN Series 3B Pref Shares - Call Option (obligated to sell)
|
771,118,471 |
— |
— |
S |
Open-market sale
derivative · FVN Series 5A Pref Shares - Call Option (obligated to sell)
|
2,457,356,615 |
— |
— |
S |
Open-market sale
derivative · FVN Series 5B Pref Shares - Call Option (obligated to sell)
|
4,337,975,510 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vuong Pham Nhat (Director)
Form 4
Other reported transaction
Tax / Compensation Filing
2026-09-28
VFS insider Form 4 filed for equity award, exercise, or tax withholding
Vuong Pham Nhat (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
derivative · VFVN Series 5 Preference Shares
|
500,000,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vuong Pham Nhat (Director)
Form 4
Other reported transaction
Tax / Compensation Filing
2026-07-17
VFS insider Form 4 filed for equity award, exercise, or tax withholding
Vuong Pham Nhat (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
derivative · VFVN Series 5 Preference Shares
|
500,000,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vuong Pham Nhat (Director, Chief Executive Officer)
Form 4
Other reported transaction
Tax / Compensation Filing
2026-07-01
VFS insider Form 4 filed for equity award, exercise, or tax withholding
Vuong Pham Nhat (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
derivative · VFTP 2026 Series 1 Preference Shares
|
101,166,305 |
— |
— |
J |
Other transaction
derivative · VFTP 2026 Series 3 Preference Shares
|
771,118,471 |
— |
— |
J |
Other transaction
derivative · VFTP 2026 Series 5 Preference Shares
|
4,337,975,510 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vuong Pham Nhat (Director, Chief Executive Officer)
Form 4
Other reported transaction
Tax / Compensation Filing
2026-06-22
VFS insider Form 4 filed for equity award, exercise, or tax withholding
Vuong Pham Nhat (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
derivative · VFTP Series 1 Preference Shares
|
105,939,383 |
— |
— |
J |
Other transaction
derivative · VFTP Series 2 Preference Shares
|
102,589,457 |
— |
— |
J |
Other transaction
derivative · VFTP Series 3 Preference Shares
|
807,500,229 |
— |
— |
J |
Other transaction
derivative · VFTP Series 5 Preference Shares
|
4,542,643,385 |
— |
— |
J |
Other transaction
derivative · VFTP 2026 Series 1 Preference Shares
|
101,166,305 |
— |
— |
J |
Other transaction
derivative · VFTP 2026 Series 3 Preference Shares
|
771,118,471 |
— |
— |
J |
Other transaction
derivative · VFTP 2026 Series 5 Preference Shares
|
4,337,975,510 |
— |
— |
J |
Other transaction
derivative · VFVN Series 1 Preference Shares
|
4,773,078 |
— |
— |
J |
Other transaction
derivative · VFVN Series 2 Preference Shares
|
102,589,457 |
— |
— |
J |
Other transaction
derivative · VFVN Series 3 Preference Shares
|
36,381,758 |
— |
— |
J |
Other transaction
derivative · VFVN Series 5 Preference Shares
|
204,667,875 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vuong Pham Nhat (Director, Chief Executive Officer)
Form 4
Other reported transaction
Tax / Compensation Filing
2026-04-06
VFS insider Form 4 filed for equity award, exercise, or tax withholding
Vuong Pham Nhat (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
derivative · VFTP Series 5 Preference Shares
|
1,000,000,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vuong Pham Nhat (Director, Chief Executive Officer)