Mike Slessor - Aug 1, 2025 Form 4 Insider Report for FORMFACTOR INC (FORM)

Role
CEO, Director
Signature
/s/ Stan Finkelstein, Attorney-in-fact for Mike Slessor
Stock symbol
FORM
Transactions as of
Aug 1, 2025
Transactions value $
-$1,034,334
Form type
4
Date filed
8/4/2025, 05:52 PM
Previous filing
Jul 2, 2025
Next filing
Aug 6, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SLESSOR MIKE CEO, Director 7005 SOUTHFRONT ROAD, LIVERMORE /s/ Stan Finkelstein, Attorney-in-fact for Mike Slessor 2025-08-04 0001590177

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction FORM Common Stock Options Exercise $0 +49.9K +9.85% $0.00 557K Aug 1, 2025 Direct F1
transaction FORM Common Stock Tax liability -$802K -27.7K -4.98% $28.93 529K Aug 1, 2025 Direct F2
transaction FORM Common Stock Options Exercise $0 +14.4K +2.73% $0.00 544K Aug 1, 2025 Direct F3
transaction FORM Common Stock Tax liability -$232K -8.01K -1.47% $28.93 536K Aug 1, 2025 Direct F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction FORM Performance-based Restricted Stock Units Award $0 +49.9K $0.00 49.9K Aug 1, 2025 Common Stock 49.9K $0.00 Direct F1
transaction FORM Performance-based Restricted Stock Units Options Exercise $0 -49.9K -100% $0.00 0 Aug 1, 2025 Common Stock 49.9K $0.00 Direct F1
transaction FORM Restricted Stock Units Options Exercise $0 -14.4K -100% $0.00 0 Aug 1, 2025 Common Stock 14.4K $0.00 Direct F3, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 These performance-based restricted stock units were previously granted and became vested based on the achievement of certain performance criteria in the period 7/1/2022 - 6/30/2025. The Compensation Committee has determined that such performance criteria have been met.
F2 Represents the number of shares withheld upon vesting and settlement of the PRSUs to cover tax withholding obligations.
F3 The Restricted Stock Units represent the third and final annual installment vest of a three year grant, grant date 8/01/2022.
F4 Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.
F5 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.