CFO at Diodes (DIOD) sells 16,556 shares at $103 average

Rhea-AI Filing Summary

Diodes Incorporated CFO Brett R. Whitmire reported an open-market sale of Diodes common stock. He sold 16,556 shares of common stock on May 13, 2026 at a weighted average price of $103.3405 per share in multiple transactions between $102.40 and $104.24.

After this sale, Whitmire directly holds 44,632 shares of Diodes common stock and 36,100 performance stock units, showing he maintains a meaningful equity stake in the company despite the net reduction in his holdings.

Insider Trade Summary

Net Seller: 16,556 shares ($1,710,905)

Net Sell 2 txns

Insider Whitmire Brett R

Role CFO

Sold 16,556 shs ($1.71M)

Type	Security	Shares	Price	Value
Sale	Diodes Incorporated Common Stock	16,556	$103.3405	$1.71M
holding	Diodes Incorporated Common Stock - Performance Stock Units	--	--	--

Holdings After Transaction: Diodes Incorporated Common Stock — 44,632 shares (Direct, null); Diodes Incorporated Common Stock - Performance Stock Units — 36,100 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 16,556 shares Weighted average sale price: $103.3405 per share Post-sale common shares held: 44,632 shares +2 more

5 metrics

Shares sold 16,556 shares Open-market sale on May 13, 2026

Weighted average sale price $103.3405 per share Common stock sale on May 13, 2026

Post-sale common shares held 44,632 shares Direct holdings after transaction

Performance stock units held 36,100 units Diodes Incorporated Common Stock - Performance Stock Units

Sale price range $102.40–$104.24 Range of prices for multiple sale transactions

Key Terms

Performance Stock Units, weighted average price, open-market sale, Form 4

4 terms

Performance Stock Units financial

"Diodes Incorporated Common Stock - Performance Stock Units"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

weighted average price financial

"The price reported is a weighted average price."

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""

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.

Form 4 regulatory

"within the range set forth in this footnote (1) to this Form 4."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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^*

Whitmire Brett R

(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)
	CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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	05/13/2026		S		16,556	D	$103.3405(1)	44,632	D
Diodes Incorporated Common Stock - Performance Stock Units								36,100	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 price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.40 to $104.24, inclusive. The reporting person undertakes to provide to Diodes Incorporated, any security holder of Diodes Incorporated, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4.

	Brett R. Whitmire	05/13/2026
	** 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 (DIOD) report for CFO Brett Whitmire?

Diodes reported that CFO Brett R. Whitmire sold 16,556 shares of common stock in an open-market transaction. The sale took place on May 13, 2026 at a weighted average price of $103.3405 per share, executed through multiple trades within a disclosed price range.

At what prices did the Diodes (DIOD) CFO sell his shares?

The CFO’s 16,556 Diodes shares were sold at a weighted average price of $103.3405 per share. According to the disclosure, the trades occurred in multiple transactions at prices ranging from $102.40 to $104.24, and detailed trade breakdowns are available upon request.

How many Diodes (DIOD) shares does the CFO hold after the reported sale?

Following the reported transaction, CFO Brett R. Whitmire directly holds 44,632 shares of Diodes common stock. He also holds 36,100 performance stock units, which represent additional equity-based compensation tied to the company’s stock, reinforcing ongoing alignment with shareholder interests.

What are the performance stock units held by the Diodes (DIOD) CFO?

The filing shows the CFO has 36,100 Diodes Incorporated Common Stock Performance Stock Units. These units are a form of equity compensation that track the value of the company’s common stock and typically vest based on performance or service conditions defined by the company’s plans.

Was the Diodes (DIOD) CFO transaction a buy or a sell?

The reported insider activity was a sale of Diodes stock by CFO Brett R. Whitmire. He sold 16,556 shares of common stock in an open-market transaction at a weighted average price of $103.3405 per share, reducing but not eliminating his direct share ownership.