VinFast director sells 11.8B FVN preference shares

The preference-share series are exchangeable for VinFast ordinary shares, subject to necessary approvals and other conditions.

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Rhea-AI Filing Summary

VinFast Auto Ltd. director Pham Nhat Vuong reported six direct derivative sales on October 5, 2026, involving 11,804,121,519 FVN preference shares across Series 1A, 1B, 3A, 3B, 5A and 5B. For each series, the reported post-transaction position matched the transaction amount: 479,745,716 Series 1A; 101,166,305 Series 1B; 3,656,758,902 Series 3A; 771,118,471 Series 3B; 2,457,356,615 Series 5A; and 4,337,975,510 Series 5B. The transactions were reported without a Rule 10b5-1 plan.

The preference shares are exchangeable for VinFast ordinary shares held by Mr. Vuong or a company he designates, subject to necessary approvals and other conditions.

Insider Trade Summary

Net Seller: 11,804,121,519 shares

Net Sell 6 txns

Insider Vuong Pham Nhat

Role Director

Sold 11,804,121,519 shs

Type	Security	Shares	Price	Value
Sale	FVN Series 1A Pref Shares - Call Option (obligated to sell) ^F1	479,745,716	--	--
Sale	FVN Series 1B Pref Shares - Call Option (obligated to sell) ^F2	101,166,305	--	--
Sale	FVN Series 3A Pref Shares - Call Option (obligated to sell) ^F3	3,656,758,902	--	--
Sale	FVN Series 3B Pref Shares - Call Option (obligated to sell) ^F4	771,118,471	--	--
Sale	FVN Series 5A Pref Shares - Call Option (obligated to sell) ^F5	2,457,356,615	--	--
Sale	FVN Series 5B Pref Shares - Call Option (obligated to sell) ^F6	4,337,975,510	--	--

Holdings After Transaction: FVN Series 1A Pref Shares - Call Option (obligated to sell) — 479,745,716 contracts (Direct); FVN Series 1B Pref Shares - Call Option (obligated to sell) — 101,166,305 contracts (Direct); FVN Series 3A Pref Shares - Call Option (obligated to sell) — 3,656,758,902 contracts (Direct); FVN Series 3B Pref Shares - Call Option (obligated to sell) — 771,118,471 contracts (Direct); FVN Series 5A Pref Shares - Call Option (obligated to sell) — 2,457,356,615 contracts (Direct); FVN Series 5B Pref Shares - Call Option (obligated to sell) — 4,337,975,510 contracts (Direct)

Footnotes (6)

F1. CPUD FVN01A preference shares ("FVN Series 1A Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 1A Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 435.5 FVN Series 1A Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 1A Pref Shares have no expiration date.
F2. CPUD FVN01B preference shares ("FVN Series 1B Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 1B Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 543.2 FVN Series 1B Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 1B Pref Shares have no expiration date.
F3. CPUD FVN03A preference shares ("FVN Series 3A Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 3A Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 435.5 FVN Series 3A Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 3A Pref Shares have no expiration date.
F4. CPUD FVN03B preference shares ("FVN Series 3B Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 3B Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 543.2 FVN Series 3B Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 3B Pref Shares have no expiration date.
F5. CPUD FVN05A preference shares ("FVN Series 5A Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 5A Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 261.4 FVN Series 5A Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 5A Pref Shares have no expiration date.
F6. CPUD FVN05B preference shares ("FVN Series 5B Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 5B Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 1,281.1 FVN Series 5B Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 5B Pref Shares have no expiration date.

Key Figures

FVN Series 1A preference shares in reported sale: 479,745,716 preference shares FVN Series 1B preference shares in reported sale: 101,166,305 preference shares FVN Series 3A preference shares in reported sale: 3,656,758,902 preference shares +3 more

6 metrics

FVN Series 1A preference shares in reported sale 479,745,716 preference shares Transaction amount and reported post-transaction position; October 5, 2026

FVN Series 1B preference shares in reported sale 101,166,305 preference shares Transaction amount and reported post-transaction position; October 5, 2026

FVN Series 3A preference shares in reported sale 3,656,758,902 preference shares Transaction amount and reported post-transaction position; October 5, 2026

FVN Series 3B preference shares in reported sale 771,118,471 preference shares Transaction amount and reported post-transaction position; October 5, 2026

FVN Series 5A preference shares in reported sale 2,457,356,615 preference shares Transaction amount and reported post-transaction position; October 5, 2026

FVN Series 5B preference shares in reported sale 4,337,975,510 preference shares Transaction amount and reported post-transaction position; October 5, 2026

Key Terms

FVN Series 1A Pref Shares, Call Option, exchangeable, exchange rate

4 terms

FVN Series 1A Pref Shares financial

"FVN Series 1A Pref Shares are exchangeable for the Issuer's ordinary shares"

Call Option technical

"FVN Series 1A Pref Shares - Call Option (obligated to sell)"

A call option is a contract that gives its buyer the right, but not the obligation, to buy a specific number of shares at a predetermined price within a set time period. Think of it as a refundable reservation to buy an item later at today’s price: you pay a fee up front and can profit if the stock rises, while your downside is limited to that fee; investors use calls to gain leverage, speculate on upside, or hedge positions without owning the shares.

exchangeable financial

"are exchangeable for the Issuer's ordinary shares held by Mr. Pham"

exchange rate financial

"at an exchange rate of 435.5 FVN Series 1A Pref Shares to 1 ordinary share"

Exchange rate is the price of one currency expressed in another—for example, how many euros you receive for one US dollar. It matters to investors because changes in that price alter the reported profits, costs and value of assets for companies and portfolios that operate or hold money across borders; think of it like switching measurement units, where the same item can look bigger or smaller depending on the unit used.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many FVN preference shares did VFS director Pham Nhat Vuong report selling?

Pham Nhat Vuong reported six direct derivative sales involving 11,804,121,519 FVN preference shares on October 5, 2026. The transactions covered Series 1A, 1B, 3A, 3B, 5A and 5B and were reported without a Rule 10b5-1 plan.

What ordinary shares can the FVN preference shares be exchanged for?

The FVN Series 1A, 1B, 3A, 3B, 5A and 5B preference shares are exchangeable for VinFast ordinary shares held by Mr. Vuong or a company he designates, subject to necessary approvals and other conditions. The exchange rates are 435.5, 543.2, 435.5, 543.2, 261.4 and 1,281.1 preference shares, respectively, for 1 ordinary share.

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Available on EDGAR 10/06/2026 - 04:01 PM Accepted by SEC EDGAR 10/06/2026 - 04:01 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Vuong Pham Nhat

(Last)

(First)

(Middle)

61 ROBINSON ROAD, #06-01

(Street)

SINGAPORE

068893

(City)

(State)

(Zip)

SINGAPORE

(Country)

2. Issuer Name and Ticker or Trading Symbol
VinFast Auto Ltd. [ VFS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/05/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
FVN Series 1A Pref Shares - Call Option (obligated to sell)	⁽¹⁾	10/05/2026		S⁽¹⁾			479,745,716	10/05/2026	⁽¹⁾	Ordinary Shares	1,101,597	⁽¹⁾	479,745,716	D
FVN Series 1B Pref Shares - Call Option (obligated to sell)	⁽²⁾	10/05/2026		S⁽²⁾			101,166,305	10/05/2026	⁽²⁾	Ordinary Shares	186,241	⁽²⁾	101,166,305	D
FVN Series 3A Pref Shares - Call Option (obligated to sell)	⁽³⁾	10/05/2026		S⁽³⁾			3,656,758,902	10/05/2026	⁽³⁾	Ordinary Shares	8,396,690	⁽³⁾	3,656,758,902	D
FVN Series 3B Pref Shares - Call Option (obligated to sell)	⁽⁴⁾	10/05/2026		S⁽⁴⁾			771,118,471	10/05/2026	⁽⁴⁾	Ordinary Shares	1,419,584	⁽⁴⁾	771,118,471	D
FVN Series 5A Pref Shares - Call Option (obligated to sell)	⁽⁵⁾	10/05/2026		S⁽⁵⁾			2,457,356,615	10/05/2026	⁽⁵⁾	Ordinary Shares	9,400,752	⁽⁵⁾	2,457,356,615	D
FVN Series 5B Pref Shares - Call Option (obligated to sell)	⁽⁶⁾	10/05/2026		S⁽⁶⁾			4,337,975,510	10/05/2026	⁽⁶⁾	Ordinary Shares	3,386,133	⁽⁶⁾	4,337,975,510	D

Explanation of Responses:

1. CPUD FVN01A preference shares ("FVN Series 1A Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 1A Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 435.5 FVN Series 1A Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 1A Pref Shares have no expiration date.

2. CPUD FVN01B preference shares ("FVN Series 1B Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 1B Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 543.2 FVN Series 1B Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 1B Pref Shares have no expiration date.

3. CPUD FVN03A preference shares ("FVN Series 3A Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 3A Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 435.5 FVN Series 3A Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 3A Pref Shares have no expiration date.

4. CPUD FVN03B preference shares ("FVN Series 3B Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 3B Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 543.2 FVN Series 3B Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 3B Pref Shares have no expiration date.

5. CPUD FVN05A preference shares ("FVN Series 5A Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 5A Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 261.4 FVN Series 5A Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 5A Pref Shares have no expiration date.

6. CPUD FVN05B preference shares ("FVN Series 5B Pref Shares") in the capital of Future Production, Investment and Development Joint Stock Company ("Future"), a joint stock company organized in Vietnam. The FVN Series 5B Pref Shares are exchangeable for the Issuer's ordinary shares held by Mr. Pham or a company that he designates at an exchange rate of 1,281.1 FVN Series 5B Pref Shares to 1 ordinary share, subject to obtaining necessary approvals and other conditions. The FVN Series 5B Pref Shares have no expiration date.

	/s/ Le Thi Dieu My, attorney-in-fact	10/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR