PRLB Form 144 details planned sale of 7,026 shares by Oleg Ryaboy

Rhea-AI Filing Summary

Form 144 discloses that Oleg Ryaboy plans to sell 7,026 shares of common stock through Morgan Stanley Smith Barney LLC on or about 01/08/2026, with an indicated aggregate market value of 384,413.54. The stock is listed on the NYSE, and the issuer has 23,678,745 shares of this class outstanding.

The shares to be sold were acquired on 01/08/2026 by exercising options under a registered plan, in two transactions of 1,164 and 5,862 shares paid in cash. The notice also reports that during the past three months, Oleg Ryaboy sold additional common shares in three transactions, including 9,710 shares for gross proceeds of 471,629.27 on 11/07/2025 and 6,669 shares for 357,327.02 on 01/07/2026. By signing, the seller represents they are not aware of undisclosed material adverse information about the issuer.

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

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	7026	384413.54	23678745	01/08/2026	NYSE

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	01/08/2026	Exercise of options under a registered plan	Issuer			1164	01/08/2026	Cash
Common	01/08/2026	Exercise of options under a registered plan	Issuer			5862	01/08/2026	Cash

* 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
OLEG RYABOY 5540 Pioneer Creek Drive Maple Plain MN 55359	Common	11/25/2025	695	34686.76
OLEG RYABOY 5540 Pioneer Creek Drive Maple Plain MN 55359	Common	11/07/2025	9710	471629.27
OLEG RYABOY 5540 Pioneer Creek Drive Maple Plain MN 55359	Common	01/07/2026	6669	357327.02

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 this Form 144 filing related to PRLB disclose?

The filing states that Oleg Ryaboy plans to sell 7,026 shares of common stock on or about 01/08/2026 through Morgan Stanley Smith Barney LLC, with an indicated aggregate market value of 384,413.54.

How many PRLB shares are planned to be sold and on which exchange are they listed?

The notice covers a planned sale of 7,026 common shares. The securities are listed on the NYSE, and the class has 23,678,745 shares outstanding.

How did Oleg Ryaboy acquire the PRLB shares being sold under this Form 144?

The shares were acquired on 01/08/2026 through the exercise of options under a registered plan from the issuer, in two cash-paid transactions of 1,164 and 5,862 shares.

What PRLB share sales by Oleg Ryaboy occurred in the past three months?

The disclosure lists three prior sales of common shares in the past three months, including 9,710 shares sold on 11/07/2025 for gross proceeds of 471,629.27 and 6,669 shares sold on 01/07/2026 for 357,327.02.

What representation does the seller make in this PRLB Form 144 notice?

By signing the notice, the person for whose account the securities are to be sold represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.

Is there any mention of a trading plan in this PRLB Form 144?

The form explains that if the person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1, signing the form and indicating the plan adoption or instruction date extends their representation to that date, although no specific plan details are listed in the excerpt.