[Form 4] FormFactor Inc. Insider Trading Activity

Rhea-AI Filing Summary

Mike Slessor, CEO and director of FormFactor Inc. (FORM), reported conversions and vesting of restricted stock units (RSUs) into common stock. The filing shows the settlement of RSUs that resulted in 5,908 shares being issued and 3,282 shares withheld to cover taxes at $27.98 per share, with reported beneficial ownership figures of 543,030 and then 539,748 shares following the withholding.

The report also records a grant of 72,372 RSUs and notes that the RSUs granted on 08/07/2025 vest in twelve quarterly installments from 11/07/2025 through 08/07/2028; RSUs granted on 08/07/2023 vest quarterly through 08/07/2026. Unvested RSUs are forfeitable on termination except as provided in existing change-of-control or equity agreements.

Positive

• Substantial continuing ownership: Reporting person retains reported beneficial ownership of 539,748 shares after transactions
• Clear grant and vesting disclosure: A grant of 72,372 RSUs is disclosed with explicit quarterly vesting schedules

Negative

• Tax withholding reduced net shares received: 3,282 shares were withheld to cover taxes at $27.98
• Unvested RSUs subject to forfeiture: RSUs not yet vested will be forfeited on termination except as provided in existing agreements

Insights

Corporate Governance Expert

TL;DR: Routine equity settlements and new RSU grant; vesting schedules and forfeiture terms disclosed.

The Form 4 documents settlement of vested restricted stock units into common stock and a contemporaneous tax-withholding disposition. The reporting person, identified as CEO and director, received 5,908 shares from RSU settlement while 3,282 shares were withheld to satisfy tax obligations at $27.98 per share. The filing discloses a sizable grant of 72,372 RSUs with explicit quarterly vesting schedules for awards dated 08/07/2025 and 08/07/2023. The disclosure also reiterates standard forfeiture language for unvested awards absent specified agreements.

Securities/Compensation Analyst

TL;DR: Compensation-related equity activity documented; no indication of unusual trading or accelerated liquidity events.

The transactions are described as the settlement of RSUs into common stock and the withholding of shares for tax purposes, with explicit counts and a withholding price. The filing provides the post-transaction beneficial ownership figures (543,030 then 539,748 shares) and details the vesting cadence for the granted RSUs (twelve quarterly installments). The filing is procedural and focuses on equity compensation mechanics rather than any market-moving corporate action.

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

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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^*

SLESSOR MIKE

(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
X	Officer (give title below)		Other (specify below)
	CEO

3. Date of Earliest Transaction (Month/Day/Year)
08/06/2025

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	08/07/2025		M		5,908	A	(1)	543,030	D
Common Stock	08/07/2025		F		3,282(2)	D	$27.98	539,748	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
Restricted Stock Units	$0	08/06/2025		A		72,372		(3)	(4)	Common Stock	72,372	$0	72,372	D
Restricted Stock Units	$0	08/07/2025		M			5,908	(5)	(4)	Common Stock	5,908	$0	23,632	D

Explanation of Responses:

1. These shares of common stock reflect the settlement of restricted stock units of the Issuer. Each Restricted Stock Unit (RSU) is convertible into a share of common stock on a 1-for-1 basis.

2. Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

3. The Restricted Stock Units granted on August 7, 2025 vest in twelve (12) quarterly installments beginning on November 7, 2025 and end on August 7, 2028 and will be settled into shares of common stocks on or following the vesting date.

4. If the reporting person's employment is terminated for any reason before an applicable vesting date, all restricted stock units that have not yet vested shall be forfeited without consideration, except as provided in the change of control severance agreement and any other agreements regarding equity vesting and exercisability between the reporting person and Issuer, which agreements or form agreements are filed with the SEC.

5. The Restricted Stock Units granted on August 7, 2023 vest in twelve (12) quarterly installments beginning on November 7, 2023 and ending on August 7, 2026 and will be settled into shares of common stocks on or following the vesting dates.

Remarks:

	/s/ Stan Finkelstein, Attorney-in-fact for Mike Slessor	08/08/2025
	** 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 transactions did FormFactor (FORM) CEO Mike Slessor report on the Form 4?

The filing reports the settlement of restricted stock units into common stock resulting in 5,908 shares issued and 3,282 shares withheld for taxes.

How many shares were withheld for taxes and at what price?

The filing states 3,282 shares were withheld to cover tax withholding obligations at a price of $27.98 per share.

What RSU grants and vesting schedules are disclosed for Mike Slessor?

The filing discloses a grant of 72,372 RSUs and states the RSUs granted on 08/07/2025 vest in 12 quarterly installments from 11/07/2025 to 08/07/2028; RSUs from 08/07/2023 vest quarterly through 08/07/2026.

What is the reported beneficial ownership after these transactions?

The document shows beneficial ownership figures of 543,030 shares and then 539,748 shares following the tax withholding disposition.

Are unvested RSUs protected if employment ends?

The filing states unvested RSUs are forfeited if employment terminates, except as provided in the change-of-control severance agreement or other equity agreements filed with the SEC.