Affiliate sale notice for POWI (NASDAQ: POWI): 53,880 shares, $3.81M proceeds

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC filed a Form 144 reporting a proposed sale of 53,880 shares of Common Stock by BALU & MOHINI BALAKRISHNAN FAM TR on 05/21/2026. The filing lists multiple prior restricted stock vesting entries (e.g., 44,088 on 02/07/2022) and shows proceeds of $3,810,032.60 associated with the reported sale.

Key Figures

Shares proposed for sale: 53,880 shares Proceeds reported: $3,810,032.60 Broker/Intermediary: Morgan Stanley Smith Barney LLC +2 more

5 metrics

Shares proposed for sale 53,880 shares proposed sale date 05/21/2026

Proceeds reported $3,810,032.60 associated with the 53,880-share sale on 05/21/2026

Broker/Intermediary Morgan Stanley Smith Barney LLC listed as broker with New York address

Restricted shares vesting example 44,088 shares vested 02/07/2022 under a registered plan

Restricted shares vesting example 15,125 shares vested 02/05/2020 under a registered plan

Key Terms

Form 144, restricted stock vesting, proceeds

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

restricted stock vesting financial

"Restricted stock vesting under a registered plan | 05/04/2017"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

proceeds financial

"53880 | 3810032.60"

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	118573	9690467.31	55719984	05/26/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/04/2017	Restricted stock vesting under a registered plan	Issuer			9382	05/04/2017	Services Rendered
Common	05/04/2017	Restricted stock vesting under a registered plan	Issuer			8985	05/04/2017	Services Rendered
Common	02/13/2018	Restricted stock vesting under a registered plan	Issuer			12128	02/13/2017	Services Rendered
Common	02/12/2019	Restricted stock vesting under a registered plan	Issuer			12250	02/12/2019	Services Rendered
Common	02/04/2020	Restricted stock vesting under a registered plan	Issuer			5118	02/04/2020	Services Rendered
Common	02/05/2020	Restricted stock vesting under a registered plan	Issuer			15125	02/05/2020	Services Rendered
Common	02/05/2021	Restricted stock vesting under a registered plan	Issuer			1050	02/05/2021	Services Rendered
Common	02/07/2022	Restricted stock vesting under a registered plan	Issuer			44088	02/07/2022	Services Rendered
Common	02/07/2023	Restricted stock vesting under a registered plan	Issuer			10447	02/07/2023	Services Rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
BALU & MOHINI BALAKRISHNAN FAM TR 5245 Hellyer Avenue San Jose CA 95138-1002	Common	05/21/2026	53880	3810032.60

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 for POWI disclose about the transaction?

It discloses a proposed sale of 53,880 shares by BALU & MOHINI BALAKRISHNAN FAM TR. The filing shows the sale date as 05/21/2026 and associated proceeds of $3,810,032.60.

Who is the registered broker or intermediary on the POWI Form 144?

The filing lists Morgan Stanley Smith Barney LLC as the broker/intermediary. Its address is shown as 1 New York Plaza, 8th Floor, New York, NY 10004.

Does the filing show why the shares were sold or their origin?

The filing indicates the shares originated from restricted stock vesting under a registered plan, with multiple vesting dates listed (for example, 05/04/2017 and 02/07/2022).

Are the proceeds from the reported sale reported and how much are they?

Yes. The Form 144 lists proceeds of $3,810,032.60 tied to the reported 53,880-share sale on 05/21/2026.