Belite Bio CSO sells 1,000 ADS under 10b5-1 plan

Belite Bio Chief Scientific Officer Nathan L. Mata executed pre-planned open-market sales of 1,000 American depositary shares.

Rhea-AI Filing Summary

Belite Bio Chief Scientific Officer Nathan L. Mata executed pre-planned open-market sales of 1,000 American depositary shares. On May 4, 2026, he sold ADS in multiple trades between weighted average prices of about $153 and $158, as detailed in the filing.

The sales were carried out under a Rule 10b5-1 trading plan that Mata adopted on December 10, 2025, indicating they were scheduled in advance rather than timed discretionarily. Following these transactions, he directly holds 2,666 ADS of Belite Bio.

Insider Trade Summary 10b5-1

Net Seller: 1,000 shares

Net Sell 5 txns

Insider MATA NATHAN L.

Role Chief Scientific Officer

Sold 1,000 shs ($156K)

Type	Security	Shares	Price	Value
Sale	American depositary share	32	$153.495	$5K
Sale	American depositary share	236	$154.2375	$36K
Sale	American depositary share	325	$155.206	$50K
Sale	American depositary share	235	$156.5677	$37K
Sale	American depositary share	172	$157.4904	$27K

Holdings After Transaction: American depositary share — 2,666 shares (Direct)

Footnotes (7)

1. F1. Each American depositary share represents one ordinary share, par value US$0.0001 per share, of the issuer.
2. F2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 12/10/2025.
3. F3. Represents the weighted average price of shares sold at prices that ranged from $153.05 to $153.855. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.
4. F4. Represents the weighted average price of shares sold at prices that ranged from $154.06 to $154.925. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.
5. F5. Represents the weighted average price of shares sold at prices that ranged from $155.02 to $155.96. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.
6. F6. Represents the weighted average price of shares sold at prices that ranged from $156 to $156.99. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.
7. F7. Represents the weighted average price of shares sold at prices that ranged from $157.05 to $157.98. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

Key Figures

ADS sold: 1,000 ADS Remaining holdings: 3,634 ADS Sale price example: $157.4904 per ADS +3 more

6 metrics

ADS sold 1,000 ADS Open-market sales on May 4, 2026

Remaining holdings 3,634 ADS Direct ownership after May 4, 2026 sales

Sale price example $157.4904 per ADS One reported weighted average sale price

Sale price example $153.4950 per ADS Another reported weighted average sale price

Shares involved (summary) 1,000 ADS Net shares sold per transactionSummary

10b5-1 plan adoption date December 10, 2025 Date CSO adopted trading plan governing these sales

Key Terms

American depositary share, Rule 10b5-1 trading plan, weighted average price, open-market sale

4 terms

American depositary share financial

"Each American depositary share represents one ordinary share, par value US$0.0001 per share, of the issuer."

An American Depositary Share (ADS) is a U.S.-listed certificate that represents a specified number of shares in a foreign company, held by a custodian bank; it works like a receipt that allows U.S. investors to buy and trade foreign equity on American exchanges without dealing with another country’s markets. Investors care because ADSs make foreign stocks easier to access, improve liquidity and settlement in dollars, and can affect dividend payments, voting rights and regulatory oversight compared with buying the underlying foreign shares directly.

Rule 10b5-1 trading plan regulatory

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 12/10/2025."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"Represents the weighted average price of shares sold at prices that ranged from $153.05 to $153.855."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open-market sale financial

"transaction_action: "open-market sale" and description "Sale in open market or private transaction""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

FAQ

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

What insider transaction did Belite Bio (BLTE) report for Nathan L. Mata?

Belite Bio’s Chief Scientific Officer Nathan L. Mata sold 1,000 American depositary shares in open-market transactions. The trades occurred on May 4, 2026 at various prices, and are recorded as non-derivative sales in the company’s Form 4 filing.

At what prices were the Belite Bio (BLTE) ADS sold in this Form 4?

The 1,000 Belite Bio ADS were sold at weighted average prices ranging from about $153.05 to $157.98. Individual trades within those ranges are grouped, and the insider undertakes to provide detailed price breakdowns to regulators or shareholders upon request.

Was the Belite Bio (BLTE) insider sale made under a Rule 10b5-1 plan?

Yes. The Form 4 states the sales were effected under a Rule 10b5-1 trading plan adopted by Nathan L. Mata on December 10, 2025. Such plans pre-schedule trades, reducing the significance of short-term market timing by the insider.

How many Belite Bio (BLTE) shares does Nathan L. Mata hold after these sales?

After the reported transactions, Nathan L. Mata directly holds 3,634 American depositary shares of Belite Bio. This number reflects his position following the 1,000 ADS sold on May 4, 2026, as disclosed in the Form 4.

What type of security did Belite Bio (BLTE) insider Nathan L. Mata sell?

He sold American depositary shares, each representing one ordinary share of Belite Bio. ADS are U.S.-traded certificates that mirror underlying foreign shares, allowing investors to access the company’s equity on U.S. markets more easily.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/05/2026 - 04:15 PM Learn about SEC filing dates

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).

X

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^*

MATA NATHAN L.

(Last) (First) (Middle)

7708 MARKER ROAD

(Street)

SAN DIEGO CALIFORNIA 92130

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BELITE BIO, INC [ BLTE ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026

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)
			Code	V	Amount	(A) or (D)	Price
American depositary share(1)	05/04/2026		S(2)		32	D	$153.495(3)	3,634	D
American depositary share(1)	05/04/2026		S(2)		236	D	$154.2375(4)	3,398	D
American depositary share(1)	05/04/2026		S(2)		325	D	$155.206(5)	3,073	D
American depositary share(1)	05/04/2026		S(2)		235	D	$156.5677(6)	2,838	D
American depositary share(1)	05/04/2026		S(2)		172	D	$157.4904(7)	2,666	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each American depositary share represents one ordinary share, par value US$0.0001 per share, of the issuer.

2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 12/10/2025.

3. Represents the weighted average price of shares sold at prices that ranged from $153.05 to $153.855. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

4. Represents the weighted average price of shares sold at prices that ranged from $154.06 to $154.925. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

5. Represents the weighted average price of shares sold at prices that ranged from $155.02 to $155.96. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

6. Represents the weighted average price of shares sold at prices that ranged from $156 to $156.99. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

7. Represents the weighted average price of shares sold at prices that ranged from $157.05 to $157.98. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

	/s/ Nathan L. Mata	05/05/2026
	** 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)