Form 144: Mike Slessor proposes resale of 9,438 shares

Mike Slessor submitted a Form 144 notice reporting proposed resale of 9,438 shares of Common Stock originally issued as restricted stock on 08/01/2023.

Accepted by SEC EDGAR 05/13/2026 - 04:19 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Mike Slessor submitted a Form 144 notice reporting proposed resale of 9,438 shares of Common Stock originally issued as restricted stock on 08/01/2023. The filing also lists three recent sales: 11,294, 10,227, and 8,664 shares on 04/15/2026, 03/18/2026, and 02/18/2026, respectively.

Key Figures

Shares proposed for resale: 9,438 shares Sale on 04/15/2026: 11,294 shares Sale on 03/18/2026: 10,227 shares +2 more

5 metrics

Shares proposed for resale 9,438 shares Restricted stock issued 08/01/2023

Sale on 04/15/2026 11,294 shares Sale reported with $1,442,486.62 proceeds

Sale on 03/18/2026 10,227 shares Sale reported with $973,087.80 proceeds

Sale on 02/18/2026 8,664 shares Sale reported with $815,576.98 proceeds

Broker/recipient listed Morgan Stanley Smith Barney LLC Executive Financial Services, 1 New York Plaza

Key Terms

Form 144, Restricted Stock, Recipient/Broker

3 terms

Form 144 regulatory

"submitted a Form 144 notice reporting proposed resale"

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 ... 08/01/2023"

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.

Recipient/Broker financial

"Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

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

What does Mike Slessor's Form 144 for FORM report?

The Form 144 reports a proposed resale of 9,438 shares of restricted Common Stock dated 08/01/2023. It also lists three sales in 2026 on 04/15, 03/18, and 02/18 with corresponding share amounts.

How many shares did Mike Slessor sell in the most recent reported transactions?

The filing lists three recent sales: 11,294 shares on 04/15/2026, 10,227 shares on 03/18/2026, and 8,664 shares on 02/18/2026. Each sale includes a dollar amount in the excerpt.

Who is listed as the broker or recipient in the Form 144 excerpt?

The excerpt names Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza as the broker/recipient line for the securities to be sold. The filing ties the listed shares to that firm in the securities section.

Are the shares described in the Form 144 restricted or unrestricted?

The filing explicitly labels the securities to be sold as Restricted Stock with an original issuance date of 08/01/2023. The Form 144 entry identifies the issuer as the source of those restricted shares.

Do the listed dollar amounts correspond to proceeds from the reported sales?

Each reported sale row in the excerpt includes a dollar figure next to the share count (for example, $1,442,486.62 for 11,294 shares). The excerpt shows those amounts adjacent to the sales dates and share counts.

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	9438	1194065.56	77954772	05/13/2026	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	08/01/2023	Restricted Stock	ISSUER			9438	08/01/2023	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	04/15/2026	11294	1442486.62
MIKE SLESSOR 7005 Southfront Road Livermore CA 94551	Common	03/18/2026	10227	973087.80
MIKE SLESSOR 7005 Southfront Road Livermore CA 94551	Common	02/18/2026	8664	815576.98

144: Remarks and Signature

Remarks
Date of Notice	05/13/2026
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)