[Form 4] Diodes Inc Insider Trading Activity

Rhea-AI Filing Summary

Insider sale by Diodes Inc officer. Emily Yang, SVP Worldwide Sales/Marketing and a director-level officer, reported selling 1,000 shares of Diodes Incorporated common stock on 08/28/2025 at $56.36 per share. After the reported sale she directly beneficially owned 59,479 shares. The filing also reports 23,100 performance stock units disposed of and indirect holdings including 584 shares held by the Oner Family Revocable Trust and 1,576 shares held in custodial accounts for the reporting person’s children, with a custodial disclaimer noted. The Form 4 was signed by Brett R. Whitmire as power of attorney for Emily Yang.

Insights

Financial Analyst

TL;DR: Routine insider sale by a senior officer; small reduction relative to reported holdings, no earnings or new material disclosures.

The report documents a sale of 1,000 shares at $56.36, leaving the reporting person with 59,479 directly held shares and reporting other equity interests including 23,100 performance stock units and indirect holdings. This is a standard Section 16 disclosure showing a personal liquidity action rather than a corporate event. The filing includes a custodial disclosure for 1,576 shares and a 584-share indirect trust holding, and it is executed via power of attorney.

Corporate Governance Expert

TL;DR: Compliance filing indicates transparency; transaction appears procedural and fully disclosed.

The Form 4 records the officer’s sale and reports both direct and indirect beneficial ownership, including performance stock units and custodial accounts with an explicit disclaimer. The use of a power of attorney to sign the report is noted. There are no disclosures of officer departures, grants, or other governance actions within this filing.

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^*

Yang Emily

(Last) (First) (Middle)

4949 HEDGCOXE ROAD

SUITE 200

(Street)

PLANO TX 75024

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
DIODES INC /DEL/ [ DIOD ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP Worldwide Sales/Marketing

3. Date of Earliest Transaction (Month/Day/Year)
08/28/2025

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
Diodes Incorporated Common Stock	08/28/2025		S		1,000	D	$56.36	59,479	D
Diodes Incorporated Common Stock - Performance Stock Units								23,100	D
Diodes Incorporated Common Stock								584	I	Oner Family Revocable Trust
Diodes Incorporated Common Stock								1,576(1)	I	Custodial

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. These shares are held in accounts for the reporting persons children, and the reporting person is the custodian of those accounts. The reporting person disclaims ownership of the shares held in those custodial accounts, and this report is not an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purposes.

	Brett R. Whitmire as Power of Attorney for Emily Yang	08/28/2025
	** 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.

FAQ

What transaction did Emily Yang report on Form 4 for DIOD?

The Form 4 reports a sale of 1,000 shares of Diodes Incorporated common stock on 08/28/2025 at a price of $56.36 per share.

How many DIOD shares does Emily Yang own after the reported transaction?

After the reported sale, Emily Yang directly beneficially owned 59,479 shares of Diodes Incorporated common stock.

Does the Form 4 report any indirect or custodial holdings for Emily Yang?

Yes. The filing reports 584 shares held indirectly by the Oner Family Revocable Trust and 1,576 shares held in custodial accounts for the reporting person’s children, with a disclaimer of ownership for the custodial accounts.

Were any derivative securities reported in this Form 4?

No derivative securities (options, warrants, or similar) are reported in the supplied sections of Table II for this filing.

Who signed the Form 4 filing for Emily Yang?

The Form 4 was signed by Brett R. Whitmire as Power of Attorney for Emily Yang on 08/28/2025.