Diodes (NASDAQ: DIOD) officer sells 3,000 shares, retains large stake

Rhea-AI Filing Summary

Diodes Incorporated corporate secretary Richard Dallas White reported selling a total of 3,000 shares of Diodes Incorporated Common Stock in open-market transactions on May 29, 2026. He sold 2,000 shares at $107.0101 per share and 1,000 shares at $104.48 per share, leaving 10,071 shares held directly after these sales. A separate holding entry shows 34,304 shares owned indirectly through BRW MGMT TRUST, indicating additional indirect ownership that was not part of the reported sales.

Insider Trade Summary

Net Seller: 3,000 shares ($318,500)

Net Sell 3 txns

Insider White Richard Dallas

Role Corporate Secretary

Sold 3,000 shs ($319K)

Type	Security	Shares	Price	Value
Sale	Diodes Incorporated Common Stock	1,000	$104.48	$104K
Sale	Diodes Incorporated Common Stock	2,000	$107.0101	$214K
holding	Diodes Incorporated Common Stock	--	--	--

Holdings After Transaction: Diodes Incorporated Common Stock — 10,071 shares (Direct, null); Diodes Incorporated Common Stock — 34,304 shares (Indirect, BRW MGMT TRUST)

Footnotes (1)

Key Figures

Shares sold (first trade): 2,000 shares at $107.0101 Shares sold (second trade): 1,000 shares at $104.48 Total shares sold: 3,000 shares +2 more

5 metrics

Shares sold (first trade) 2,000 shares at $107.0101 Open-market sale of Diodes Incorporated Common Stock on May 29, 2026

Shares sold (second trade) 1,000 shares at $104.48 Open-market sale of Diodes Incorporated Common Stock on May 29, 2026

Total shares sold 3,000 shares Aggregate net-sell transactions reported in Form 4

Direct holdings after transactions 10,071 shares Direct ownership of Diodes stock following May 29, 2026 sales

Indirect holdings via BRW MGMT TRUST 34,304 shares Indirect ownership reported as holding entry on May 29, 2026

Key Terms

open-market sale, non-derivative, indirect ownership, BRW MGMT TRUST, +1 more

5 terms

open-market sale financial

"transaction_action": "open-market sale"

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.

non-derivative financial

"transaction_type": "non-derivative"

indirect ownership financial

"ownership_type": "indirect"

BRW MGMT TRUST financial

"nature_of_ownership": "BRW MGMT TRUST"

Diodes Incorporated Common Stock financial

"security_title": "Diodes Incorporated Common Stock"

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Form 4 Insider Transactions: What Each Field Means →

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^*

White Richard Dallas

(Last) (First) (Middle)

4949 HEDGCOXE ROAD

SUITE 200

(Street)

PLANO TEXAS 75024

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	Corporate Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/29/2026

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
Diodes Incorporated Common Stock	05/29/2026		S		1,000	D	$104.48	10,071	D
Diodes Incorporated Common Stock	05/29/2026		S		2,000	D	$107.0101	8,071	D
Diodes Incorporated Common Stock								34,304	I	BRW MGMT TRUST

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:

	Richard D. White	06/01/2026
	** 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)

FAQ

What insider transaction did DIODES INC (DIOD) report for Richard Dallas White?

DIODES INC reported that corporate secretary Richard Dallas White sold 3,000 shares of Diodes Incorporated Common Stock in open-market transactions on May 29, 2026, according to a Form 4 insider filing disclosing his updated direct and indirect shareholdings.

How many DIOD shares did Richard Dallas White sell and at what prices?

Richard Dallas White sold 2,000 Diodes shares at $107.0101 per share and 1,000 shares at $104.48 per share. These open-market sales on May 29, 2026 totaled 3,000 shares of Diodes Incorporated Common Stock.

How many DIODES INC (DIOD) shares does Richard Dallas White hold after the sale?

After the reported transactions, Richard Dallas White holds 10,071 Diodes shares directly. The Form 4 also lists 34,304 shares held indirectly through BRW MGMT TRUST, reflecting additional ownership separate from his directly held shares.

Were the recent DIOD insider transactions by Richard Dallas White open-market sales?

Yes. The Form 4 classifies both transactions for 2,000 and 1,000 shares as non-derivative open-market sales, coded “S” and described as sales in open market or private transactions, executed on May 29, 2026.

What indirect DIOD holdings are reported for Richard Dallas White?

The filing shows 34,304 Diodes shares held indirectly through BRW MGMT TRUST. This entry is recorded as an indirect ownership position and is separate from the 10,071 shares he holds directly after the reported open-market sales.