Director's trust sells 53,880 Power Integrations (POWI) shares

Rhea-AI Filing Summary

Power Integrations director Balakrishnan Balu reported an open-market sale of 53,880 shares of Common Stock held indirectly through a trust on May 21, 2026. The shares were sold at an average price of $70.7133 per share, and 522,376 shares remain held indirectly by the trust.

Insider Trade Summary

Net Seller: 53,880 shares ($3,810,033)

Net Sell 1 txn

Insider BALAKRISHNAN BALU

Role null

Sold 53,880 shs ($3.81M)

Type	Security	Shares	Price	Value
Sale	Common Stock	53,880	$70.7133	$3.81M

Holdings After Transaction: Common Stock — 522,376 shares (Indirect, by Trust)

Footnotes (1)

Key Figures

Shares sold: 53,880 shares Average sale price: $70.7133 per share Shares remaining indirectly held: 522,376 shares +1 more

4 metrics

Shares sold 53,880 shares Open-market sale on May 21, 2026

Average sale price $70.7133 per share Common Stock sale by trust

Shares remaining indirectly held 522,376 shares Total shares following transaction, indirect by trust

Net share direction 53,880 net shares sold Form 4 transaction summary, net-sell

Key Terms

open-market sale, indirect ownership, by Trust, Common Stock

4 terms

open-market sale financial

"transaction_action is described as "open-market sale" of Common Stock"

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.

indirect ownership financial

"ownership_type is listed as indirect with code "I""

by Trust financial

"nature_of_ownership is specified as "by Trust""

Common Stock financial

"security_title for the transaction is "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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^*

BALAKRISHNAN BALU

(Last) (First) (Middle)

5245 HELLYER AVE

(Street)

SAN JOSE CALIFORNIA 95138

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
POWER INTEGRATIONS INC [ POWI ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

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
Common Stock	05/21/2026		S		53,880	D	$70.7133	522,376	I	by 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:

	By: /s/ Eric Verity Attorney In Fact For: Balu Balakrishnan	05/26/2026
	** 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 Power Integrations (POWI) report for Balakrishnan Balu?

Power Integrations reported that director Balakrishnan Balu’s trust sold 53,880 shares of Common Stock in an open-market transaction on May 21, 2026. This sale was disclosed on a Form 4 as required for insiders under SEC rules.

How many Power Integrations (POWI) shares were sold and at what price?

The trust associated with director Balakrishnan Balu sold 53,880 shares of Power Integrations Common Stock at an average price of $70.7133 per share. This reflects a single open-market sale transaction disclosed in the Form 4 filing.

How many Power Integrations (POWI) shares does the trust hold after this sale?

After the reported sale, the trust associated with director Balakrishnan Balu holds 522,376 shares of Power Integrations Common Stock indirectly. This post-transaction balance is disclosed in the Form 4 as the total shares following the transaction.

Is the Power Integrations (POWI) insider transaction held directly or indirectly?

The reported transaction involves shares held indirectly by director Balakrishnan Balu through a trust. The Form 4 identifies the ownership type as indirect, with the nature of ownership specified as “by Trust” rather than direct personal holdings.

What does the transaction code on the Power Integrations (POWI) Form 4 indicate?

The Form 4 lists transaction code “S,” described as a sale in an open market or private transaction. This indicates the trust associated with director Balakrishnan Balu executed an open-market sale of Common Stock rather than an option exercise, gift, or tax withholding.