Director St. Dennis trims FormFactor (FORM) stake in 7,431-share sale

Rhea-AI Filing Summary

FormFactor Inc. director Thomas St. Dennis reported open-market sales of company common stock. On 02/10/2026, he sold 5,601 shares at $93.7144 per share and 1,830 shares at $94.2406 per share, for a total of 7,431 shares sold. After these transactions, he directly owned 31,526 FormFactor shares.

Insider Trade Summary

Net Seller: 7,431 shares ($697,355)

Net Sell 2 txns

Insider St Dennis Thomas

Role Director

Sold 7,431 shs ($697K)

Type	Security	Shares	Price	Value
Sale	Common Stock	5,601	$93.7144	$525K
Sale	Common Stock	1,830	$94.2406	$172K

Holdings After Transaction: Common Stock — 33,356 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

St Dennis Thomas

(Last) (First) (Middle)

7005 SOUTHFRONT ROAD

(Street)

LIVERMORE CA 94551

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FORMFACTOR INC [ FORM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/10/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/10/2026		S		5,601	D	$93.7144	33,356	D
Common Stock	02/10/2026		S		1,830	D	$94.2406	31,526	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/: Stan Finkelstein, Attorney-in-fact for Thomas St. Dennis	02/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did FormFactor (FORM) report for Thomas St. Dennis?

Thomas St. Dennis reported selling FormFactor common stock. On February 10, 2026, he executed two open-market sales totaling 7,431 shares, as disclosed in a Form 4 insider trading report filed under Section 16 rules.

How many FormFactor (FORM) shares did Thomas St. Dennis sell and at what prices?

He sold 7,431 FormFactor shares in total. The sales were split into 5,601 shares at a price of $93.7144 per share and 1,830 shares at a price of $94.2406 per share, both on February 10, 2026.

How many FormFactor (FORM) shares does Thomas St. Dennis own after the reported sales?

After the reported transactions, he directly owns 31,526 shares. The Form 4 indicates this post-transaction balance of FormFactor common stock held directly by Thomas St. Dennis following his February 10, 2026 open-market sales.

What type of insider transactions were reported for FormFactor (FORM)?

The filing reports open-market sales of common stock. Both transactions on February 10, 2026 used transaction code “S,” meaning sales in the open market or private transactions, involving FormFactor common shares held directly by the director.

What is Thomas St. Dennis’s role at FormFactor (FORM) according to the filing?

He is identified as a director of FormFactor Inc. The Form 4 indicates his relationship to the issuer as a director, with no officer role or 10% beneficial ownership status checked in the relationship section of the report.