AAOI director sells 15,000 shares in market

APPLIED OPTOELECTRONICS, INC. director William H. Yeh reported an open-market sale of 15,000 shares of common stock.

Accepted by SEC EDGAR 03/10/2026 - 04:43 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

APPLIED OPTOELECTRONICS, INC. director William H. Yeh reported an open-market sale of 15,000 shares of common stock. The weighted average sale price was about $105.76 per share, across trades between $104.50 and $108.32. After these transactions, he directly holds 238,819 shares, indicating he retains a substantial position in the company.

Insider Trade Summary

Net Seller: 15,000 shares

Net Sell 1 txn

Insider Yeh William H

Role Director

Sold 15,000 shs ($1.59M)

Type	Security	Shares	Price	Value
Sale	Common Stock, $.001 par value	15,000	$105.7559	$1.59M

Holdings After Transaction: Common Stock, $.001 par value — 238,819 shares (Direct)

Footnotes (1)

1. F1. The shares were sold in multiple transactions on March 09, 2026 at actual sale prices ranging from $104.50 to $108.32 per share. The price reported reflects the weighted average sale price for the transactions. The reporting person undertakes to provide upon request by SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold during each transaction

FAQ

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

What insider transaction did AAOI director William H. Yeh report?

William H. Yeh reported selling 15,000 shares of APPLIED OPTOELECTRONICS, INC. common stock. The transaction was an open-market sale, disclosed on Form 4, and reflects a routine adjustment rather than a complete exit from his position.

At what prices did William H. Yeh sell AAOI shares?

The AAOI shares were sold in multiple trades at prices ranging from $104.50 to $108.32 per share. The Form 4 reports a weighted average sale price of about $105.76 per share for the 15,000 shares sold in this transaction.

How many AAOI shares does William H. Yeh hold after the sale?

Following the reported sale, William H. Yeh directly holds 238,819 shares of APPLIED OPTOELECTRONICS, INC. common stock. This remaining stake shows he continues to have significant exposure to the company’s equity after the 15,000-share disposition.

Was the AAOI insider transaction a buy or sell?

The AAOI insider transaction was a sale. Director William H. Yeh conducted an open-market sale of 15,000 common shares, as indicated by transaction code “S,” which denotes a sale in the open market or a private transaction.

Did the AAOI Form 4 indicate multiple trades for the 15,000 shares?

Yes. The Form 4 notes the 15,000 AAOI shares were sold in multiple transactions on March 9, 2026. The weighted average price is reported, and Yeh has offered to provide full trade details upon request to regulators or shareholders.

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

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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^*

Yeh William H

(Last) (First) (Middle)

C/O APPLIED OPTOELECTRONICS, INC.

13139 JESS PIRTLE BLVD.

(Street)

SUGAR LAND TX 77478

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
APPLIED OPTOELECTRONICS, INC. [ AAOI ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

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

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

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

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
Common Stock, $.001 par value	03/09/2026		S		15,000(1)	D	$105.7559	238,819	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. The shares were sold in multiple transactions on March 09, 2026 at actual sale prices ranging from $104.50 to $108.32 per share. The price reported reflects the weighted average sale price for the transactions. The reporting person undertakes to provide upon request by SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold during each transaction

	/s/ David C. Kuo, attorney in fact for William H. Yeh	03/10/2026
	** 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.