Form 144: Notice to Sell 11,890 Restricted Shares

Morgan Stanley Smith Barney LLC submitted a Form 144 notice for the proposed sale of 11,890 shares of Common Stock classified as Restricted Stock.

Accepted by SEC EDGAR 06/10/2026 - 04:03 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice for the proposed sale of 11,890 shares of Common Stock classified as Restricted Stock. The filing lists the securities as held by the issuer and references NASDAQ.

The filing also reports three sales by Mike Slessor in the past three months: 9,438 shares on 05/13/2026 (proceeds $1,194,065.56), 11,294 shares on 04/15/2026 (proceeds $1,442,486.62), and 10,227 shares on 03/18/2026 (proceeds $973,087.80).

Key Figures

Registered/offered shares: 11,890 shares Sale on 05/13/2026: 9,438 shares Sale on 04/15/2026: 11,294 shares +2 more

5 metrics

Registered/offered shares 11,890 shares Securities to be sold; Restricted Stock; acquisition date 11/07/2023

Sale on 05/13/2026 9,438 shares Sale by Mike Slessor; proceeds $1,194,065.56

Sale on 04/15/2026 11,294 shares Sale by Mike Slessor; proceeds $1,442,486.62

Sale on 03/18/2026 10,227 shares Sale by Mike Slessor; proceeds $973,087.80

Exchange referenced NASDAQ Exchange cited in filing header dated 06/10/2026

Key Terms

Form 144, Restricted Stock, Issuer, Broker‑Dealer (Morgan Stanley Smith Barney LLC)

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

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 financial

"Securities To Be Sold | Restricted Stock | ISSUER"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Issuer regulatory

"Restricted Stock | ISSUER"

Broker‑Dealer (Morgan Stanley Smith Barney LLC) financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filed under symbol FORM report?

The filing reports a proposed sale of 11,890 shares of Common Stock as Restricted Stock and notes recent sales by an individual named Mike Slessor.

Who is listed as the broker or filer on this Form 144?

The filer is listed as Morgan Stanley Smith Barney LLC, Executive Financial Services at 1 New York Plaza, indicating a broker‑dealer is handling the proposed sale.

What recent transactions by Mike Slessor are included?

The filing lists three sales: 9,438 shares on 05/13/2026 ($1,194,065.56), 11,294 shares on 04/15/2026 ($1,442,486.62), and 10,227 shares on 03/18/2026 ($973,087.80).

Are the securities being sold registered or described as restricted?

The securities are described in the filing as Restricted Stock with an original acquisition date of 11/07/2023, and the filing lists the sale as by the issuer.

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

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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	0001590177
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	FORMFACTOR, INC.
SEC File Number	000-50307
Address of Issuer	7005 SOUTHFRONT ROAD LIVERMORE CALIFORNIA 94551
Phone	925-290-4000
Name of Person for Whose Account the Securities are To Be Sold	MIKE SLESSOR
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	Officer
Relationship to Issuer	Director

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	11890	1442913.33	77954772	06/10/2026	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	11/07/2023	Restricted Stock	ISSUER			11890	11/07/2023	Not Applicable

* 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
MIKE SLESSOR 7005 Southfront Road Livermore CA 94551	Common	05/13/2026	9438	1194065.56
MIKE SLESSOR 7005 Southfront Road Livermore CA 94551	Common	04/15/2026	11294	1442486.62
MIKE SLESSOR 7005 Southfront Road Livermore CA 94551	Common	03/18/2026	10227	973087.80

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock during the period of 11/07/2023 through 05/07/2025.
Date of Notice	06/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/19/2025
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	/s/ Mike (Michael) David Slessor
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)