Diodes CTO sells 15,330 shares in open market

Diodes Incorporated Chief Technology Officer Francis Tang reported an open-market sale of 15,330 shares of Diodes Incorporated Common Stock at a weighted average price of $112.0431 per share.

Rhea-AI Filing Summary

Diodes Incorporated Chief Technology Officer Francis Tang reported an open-market sale of 15,330 shares of Diodes Incorporated Common Stock at a weighted average price of $112.0431 per share. After this transaction, he directly holds 71,438 shares. The sale was executed in multiple trades between $111.00 and $114.00 per share.

Insights

Insider trading and governance analyst

CTO executes notable but partial open-market share sale.

Chief Technology Officer Francis Tang completed an open-market sale of 15,330 Diodes shares at a weighted average price of $112.0431. The filing characterizes this as a standard sale in the public market rather than a derivative exercise or tax-related event.

Following the transaction, Tang directly holds 71,438 shares, indicating he retains a substantial equity stake. The price range of $111.00 to $114.00 shows execution across multiple trades during the day, typical of liquidity-driven selling rather than a single block trade.

The filing does not reference any Rule 10b5-1 trading plan or derivative positions, and derivativeSummary is empty. Subsequent filings may provide additional context if further transactions occur, but this individual Form 4 primarily records a discrete open-market sale.

Insider Trade Summary

Net Seller: 15,330 shares

Net Sell 1 txn

Insider Tang Francis

Role Chief Technology Officer

Sold 15,330 shs ($1.72M)

Type	Security	Shares	Price	Value
Sale	Diodes Incorporated Common Stock	15,330	$112.0431	$1.72M

Holdings After Transaction: Diodes Incorporated Common Stock — 71,438 shares (Direct)

Footnotes (1)

1. F1. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.00 to $114.00, 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.

Key Figures

Shares sold: 15,330 shares Weighted average sale price: $112.0431 per share Post-transaction holdings: 71,438 shares +2 more

5 metrics

Shares sold 15,330 shares Open-market sale of common stock

Weighted average sale price $112.0431 per share Average price across multiple trades

Post-transaction holdings 71,438 shares Shares directly held after sale

Intraday sale price range low $111.00 per share Lowest reported sale price

Intraday sale price range high $114.00 per share Highest reported sale price

Key Terms

open-market sale, weighted average price, Diodes Incorporated Common Stock, Form 4, +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.

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.

Diodes Incorporated Common Stock financial

"security_title": "Diodes Incorporated Common Stock""

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.

non-derivative financial

"transaction_type": "non-derivative""

FAQ

What insider transaction did DIODES INC (DIOD) report for Francis Tang?

DIODES INC reported that Chief Technology Officer Francis Tang sold 15,330 shares of Diodes Incorporated Common Stock in an open-market transaction. The weighted average sale price was $112.0431 per share, executed across multiple trades within a defined intraday price range.

At what price did the DIOD CTO sell his Diodes Incorporated shares?

The CTO’s shares were sold at a weighted average price of $112.0431 per share. According to the filing, these open-market transactions occurred at individual prices ranging from $111.00 to $114.00, inclusive, across multiple trades on the same date.

How many DIOD shares does CTO Francis Tang hold after this Form 4 sale?

After the reported transaction, Chief Technology Officer Francis Tang directly holds 71,438 shares of Diodes Incorporated Common Stock. This post-transaction balance reflects his remaining ownership following the open-market sale of 15,330 shares disclosed in the Form 4 filing.

Was the DIOD insider transaction a buy or a sell for Francis Tang?

The Form 4 clearly shows a sale by Francis Tang. It records an open-market disposition of 15,330 shares of Diodes Incorporated Common Stock, coded as transaction type “S,” which denotes a sale in the open market or a private transaction.

Did the DIOD CTO’s Form 4 involve options or other derivative securities?

No derivative securities are reported in this Form 4 for the DIOD CTO. The filing shows only a non-derivative transaction in common stock, and the derivativeSummary section is empty, indicating no option exercises, conversions, or other derivative-related activity in this report.

Does the DIOD Form 4 mention a Rule 10b5-1 trading plan for this sale?

The Form 4 footnote discusses weighted-average pricing but does not mention any Rule 10b5-1 trading plan. It states that the reported price reflects multiple trades between $111.00 and $114.00, and offers to provide detailed trade breakdowns upon request.

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

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Accepted by SEC EDGAR 06/01/2026 - 01:51 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).

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^*

Tang Francis

(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)
	Chief Technology Officer

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		15,330	D	$112.0431(1)	71,438	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 $111.00 to $114.00, 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 as Power of Attorney for Francis Tang	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)