Frank K. Lee sells repeated blocks of PLAB shares (PLAB)

Rhea-AI Filing Summary

Frank K. Lee reported multiple sales of Common stock under Rule 144. The filing lists individual dispositions by Lee on several dates in Q1 2026, including sales of 8,750 shares on 01/02/2026 for $293,432.57 and repeated blocks of 10,000 shares on dates including 01/05/2026, 01/06/2026, 01/07/2026, 01/12/2026, 01/13/2026, 01/15/2026, 01/16/2026, and 03/19/2026, with proceeds shown for each trade.

The report also notes a 10,000-share restricted stock vesting on 01/03/2026 listed as compensation and an entry showing 10,000 shares held at Fidelity Brokerage Services LLC. The filing is informational notice of these dispositions under Form 144.

Insights

Securities Compliance Counsel

Routine Rule 144 sale notices listing multiple dated dispositions and a compensation vesting.

The filing lists sequential dispositions by Frank K. Lee with per‑trade share counts (primarily 10,000 shares) and exact proceeds for each date, consistent with Rule 144 notice practice. It also records a 10,000-share restricted stock vesting on 01/03/2026.

Timing and settlement details beyond trade dates are not provided; subsequent filings or broker records would show final transfer/receipt outcomes.

Corporate Governance Analyst

Multiple small-block dispositions reported; reads as routine liquidity rather than an extraordinary governance event.

The sequence of similar-sized sales across January and one in March suggests staged dispositions; each row includes the exact proceeds which improves traceability. The vesting entry is compensation-related and explains a possible source of sold shares.

Material impact depends on the holder's total position, which the excerpt does not quantify; subsequent beneficial‑ownership disclosures would add proportional context.

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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	10000	390000.00	58966394	03/23/2026	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	01/03/2026	Restricted Stock Vesting	Issuer			10000	01/03/2026	Compensation

* 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
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/02/2026	8750	293432.57
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/05/2026	10000	339000.00
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/06/2026	10000	354058.32
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/07/2026	10000	348285.03
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/12/2026	10000	330500.00
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/13/2026	10000	344156.58
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/15/2026	10000	341360.00
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	01/16/2026	10000	345090.55
Frank K. Lee 15 Secor Road Brookfield CT 06804	Common	03/19/2026	10000	358024.17

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 PLAB Form 144 filed by Frank K. Lee report?

The filing reports multiple sales of Common stock by Frank K. Lee, including a sale of 8,750 shares on 01/02/2026 for $293,432.57. It also shows repeated 10,000-share dispositions on several dates with proceeds listed for each.

Does the Form 144 show any compensation-related shares for PLAB?

Yes. The filing records a 10,000-share restricted stock vesting on 01/03/2026 labeled as Compensation, which may be the source of some sold shares noted elsewhere in the report.

Which dates and sale sizes are included in the PLAB Form 144 excerpt?

The excerpt lists dispositions on dates including 01/02/2026 (8,750 shares) and multiple 10,000-share sales on 01/05/2026, 01/06/2026, 01/07/2026, 01/12/2026, 01/13/2026, 01/15/2026, 01/16/2026, and 03/19/2026, each with proceeds shown.

Who is the broker or record holder shown on the PLAB filing?

The filing lists Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI, with an entry showing 10,000 shares associated with that broker in the excerpt.

Do the Form 144 entries state total remaining holdings after these sales for PLAB?

The excerpt does not provide a consolidated post‑transaction beneficial ownership total; it lists individual sale quantities and proceeds without showing an aggregate remaining position.