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SLESSOR MIKE

Disclosed activity across 2 companies

Tapewire entity
23022
SEC CIK
0001590177

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BENCHMARK ELECTRONICS INCBHE · Entity 4343DirectorMay 27, 2026May 28, 2026
FORMFACTOR INCFORM · Entity 3670Director · CEOOctober 14, 2026October 15, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

BENCHMARK ELECTRONICS INC

Report date May 27, 2026 · Filed May 28, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect4,349 Reported balance After 2026-05-27 transaction · row 1
1 source row

Row 1 · 2026-05-27 · Grant · Acquired 2,093 · Balance 4,349

F1: These shares are represented by a restricted stock unit award bearing the right to receive Common Shares and are scheduled to vest either one-year from the date of grant or the next annual shareholder meeting, whichever is earlier.

Filing footnotes · ownership attribution and instrument terms

F1: These shares are represented by a restricted stock unit award bearing the right to receive Common Shares and are scheduled to vest either one-year from the date of grant or the next annual shareholder meeting, whichever is earlier.

FORMFACTOR INC

Report date October 14, 2026 · Filed October 15, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect455,596 Ending reported balance After 2026-10-14 transaction · row 3
3 source rows · reconciled sequence

Row 1 · 2026-10-14 · Sale · Disposed 2,195 · Balance 464,499

F1: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025.

F2: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $123.87 through $124.86. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Row 2 · 2026-10-14 · Sale · Disposed 7,703 · Balance 456,796

F1: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025.

F3: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $124.90 through $125.805. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Row 3 · 2026-10-14 · Sale · Disposed 1,200 · Balance 455,596

F1: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025.

F4: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $125.855 through $125.98. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Filing footnotes · ownership attribution and instrument terms

F1: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025.

F2: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $123.87 through $124.86. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $124.90 through $125.805. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F4: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $125.855 through $125.98. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 07, 2025 Filed Aug 8, 2025 20:48 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,282 $27.98 $91,830.36
Disclosure

SEC source: 0001039399-25-000096 · wk-form4_1754686124.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 539,748

F2 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
August 07, 2025 Filed Aug 8, 2025 20:48 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 5,908 Not disclosed Not disclosed
Disclosure

SEC source: 0001039399-25-000096 · wk-form4_1754686124.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 543,030

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
August 06, 2025 Filed Aug 8, 2025 20:48 UTC FORMFACTOR INC FORM · Entity 3670 GrantRestricted Stock Units · Derivative 72,372 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000096 · wk-form4_1754686124.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,372

Underlying: Common Stock · 72,372 shares

Expires not disclosed

F3 · derivative.exercise_date: 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.

F4 · derivative.expiration_date: 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.

Read SEC document
August 05, 2025 Filed Aug 6, 2025 20:27 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 3,644 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000091 · wk-form4_1754512050.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,152

Underlying: Common Stock · 3,644 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F3 · derivative.exercise_date: The Restricted Stock Units granted on August 5, 2024 vest in twelve (12) quarterly installments beginning on November 5, 2024 and ending on August 5, 2027 and will be settled into shares of common stocks on or following the vesting dates.

F4 · derivative.expiration_date: 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.

Read SEC document
August 05, 2025 Filed Aug 6, 2025 20:27 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 2,025 $29.14 $59,008.50
Disclosure

SEC source: 0001039399-25-000091 · wk-form4_1754512050.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 537,122

F2 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
August 05, 2025 Filed Aug 6, 2025 20:27 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 3,644 Not disclosed Not disclosed
Disclosure

SEC source: 0001039399-25-000091 · wk-form4_1754512050.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 539,147

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 14,426 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · derivative · entry 7

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,426 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The Restricted Stock Units represent the third and final annual installment vest of a three year grant, grant date 8/01/2022.

F5 · derivative.expiration_date: 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.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionPerformance-based Restricted Stock Units · Derivative 49,935 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · derivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 49,935 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 GrantPerformance-based Restricted Stock Units · Derivative 49,935 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · derivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,935

Underlying: Common Stock · 49,935 shares

Expires not disclosed

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 8,014 $28.93 $231,845.02
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 535,503

F4 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 14,426 $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 543,517

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: The Restricted Stock Units represent the third and final annual installment vest of a three year grant, grant date 8/01/2022.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 27,739 $28.93 $802,489.27
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 529,091

F2 · shares: Represents the number of shares withheld upon vesting and settlement of the PRSUs to cover tax withholding obligations.

Read SEC document
August 01, 2025 Filed Aug 4, 2025 21:52 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 49,935 $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000082 · wk-form4_1754344360.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 556,830

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: 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.

Read SEC document
July 01, 2025 Filed Jul 2, 2025 19:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,000 $34.03 $136,120.00
Disclosure

SEC source: 0001039399-25-000071 · wk-form4_1751484608.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 506,895

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $33.90 through $34.17. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
June 02, 2025 Filed Jun 3, 2025 20:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,000 $29.83 $119,320.00
Disclosure

SEC source: 0001039399-25-000069 · wk-form4_1748981802.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 510,895

F1 · shares: The reported sale of shares occurred automatically pursuant to Rule 10b5-1 trading plan adopted November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction posted. Price range of shares sold is $29.65 thru $30.12. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
May 07, 2025 Filed May 8, 2025 22:48 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 5,908 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000046 · wk-form4_1746744521.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,540

Underlying: Common Stock · 5,908 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F3 · derivative.exercise_date: 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.

F4 · derivative.expiration_date: 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.

Read SEC document
May 07, 2025 Filed May 8, 2025 22:48 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,282 $29.66 $97,344.12
Disclosure

SEC source: 0001039399-25-000046 · wk-form4_1746744521.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,895

F2 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
May 07, 2025 Filed May 8, 2025 22:48 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 5,908 Not disclosed Not disclosed
Disclosure

SEC source: 0001039399-25-000046 · wk-form4_1746744521.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 518,177

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
May 05, 2025 Filed May 7, 2025 20:09 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 3,644 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000040 · wk-form4_1746648552.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,796

Underlying: Common Stock · 3,644 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F3 · derivative.exercise_date: The Restricted Stock Units granted on August 5, 2024 vest in twelve (12) quarterly installments beginning on November 5, 2024 and ending on August 5, 2027 and will be settled into shares of common stocks on or following the vesting dates.

F4 · derivative.expiration_date: 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.

Read SEC document
May 05, 2025 Filed May 7, 2025 20:09 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 2,025 $29.81 $60,365.25
Disclosure

SEC source: 0001039399-25-000040 · wk-form4_1746648552.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 512,269

F2 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
May 05, 2025 Filed May 7, 2025 20:09 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 3,644 Not disclosed Not disclosed
Disclosure

SEC source: 0001039399-25-000040 · wk-form4_1746648552.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,294

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
May 01, 2025 Filed May 1, 2025 21:40 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,000 $31.72 $126,880.00
Disclosure

SEC source: 0001039399-25-000035 · wk-form4_1746135601.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 510,650

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $31.29 through $32.25. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
April 01, 2025 Filed Apr 2, 2025 00:23 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,000 $28.24 $112,977.20
Disclosure

SEC source: 0001039399-25-000029 · wk-form4_1743553377.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 514,650

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $28.14 through $28.43. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
March 03, 2025 Filed Mar 4, 2025 21:46 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,000 $33.05 $132,200.00
Disclosure

SEC source: 0001039399-25-000025 · wk-form4_1741124783.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 518,650

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $32.769 through $33.53. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 07, 2025 Filed Feb 10, 2025 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 5,908 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000016 · wk-form4_1739224599.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,448

Underlying: Common Stock · 5,908 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Restricted Stock Units vest in twelve (12) quarterly installments beginning on November 7, 2023 and end on August 7, 2026 and will be settled into shares of common stocks on or following the vesting date.

F3 · derivative.expiration_date: 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.

Read SEC document
February 07, 2025 Filed Feb 10, 2025 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,282 $35.84 $117,626.88
Disclosure

SEC source: 0001039399-25-000016 · wk-form4_1739224599.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 522,650

F1 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
February 07, 2025 Filed Feb 10, 2025 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 5,908 $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000016 · wk-form4_1739224599.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 525,932

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 05, 2025 Filed Feb 6, 2025 21:46 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 3,644 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000013 · wk-form4_1738878362.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,440

Underlying: Common Stock · 3,644 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Restricted Stock Units granted on August 5, 2024 vest in twelve (12) quarterly installments beginning on November 5, 2024 and end on August 5, 2027 and will be settled into shares of common stocks on or following the vesting date.

F3 · derivative.expiration_date: 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.

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February 05, 2025 Filed Feb 6, 2025 21:46 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 2,151 $41.12 $88,449.12
Disclosure

SEC source: 0001039399-25-000013 · wk-form4_1738878362.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 520,024

F1 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
February 05, 2025 Filed Feb 6, 2025 21:46 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 3,644 $0.00 $0.00
Disclosure

SEC source: 0001039399-25-000013 · wk-form4_1738878362.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 522,175

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 03, 2025 Filed Feb 3, 2025 22:18 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 100 $39.53 $3,953.00
Disclosure

SEC source: 0001039399-25-000005 · wk-form4_1738621080.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 518,531

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

Read SEC document
February 03, 2025 Filed Feb 3, 2025 22:18 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 3,900 $38.97 $151,983.00
Disclosure

SEC source: 0001039399-25-000005 · wk-form4_1738621080.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 518,631

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $38.515 through $39.50. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
January 02, 2025 Filed Jan 2, 2025 22:54 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 400 $45.01 $18,004.00
Disclosure

SEC source: 0001039399-25-000002 · wk-form4_1735858487.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 522,531

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $44.93 through $45.07. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
January 02, 2025 Filed Jan 2, 2025 22:54 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 3,600 $44.38 $159,768.00
Disclosure

SEC source: 0001039399-25-000002 · wk-form4_1735858487.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 522,931

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $43.93 through $44.91. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
December 02, 2024 Filed Dec 2, 2024 23:55 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 101 $41.17 $4,158.17
Disclosure

SEC source: 0001039399-24-000047 · wk-form4_1733183728.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 526,531

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $41.15 through $41.17. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
December 02, 2024 Filed Dec 2, 2024 23:55 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 3,899 $40.57 $158,182.43
Disclosure

SEC source: 0001039399-24-000047 · wk-form4_1733183728.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 526,632

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $40.06 through $41.04. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
November 07, 2024 Filed Nov 8, 2024 23:05 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 5,908 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-24-000043 · wk-form4_1731107133.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,356

Underlying: Common Stock · 5,908 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Restricted Stock Units granted on August 7, 2023 and vest in twelve (12) quarterly installments beginning on November 7, 2023 and end on August 7, 2026 and will be settled into shares of common stocks on or following the vesting date.

F3 · derivative.expiration_date: 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.

Read SEC document
November 07, 2024 Filed Nov 8, 2024 23:05 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,276 $42.40 $138,902.40
Disclosure

SEC source: 0001039399-24-000043 · wk-form4_1731107133.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 530,531

F1 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
November 07, 2024 Filed Nov 8, 2024 23:05 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 5,908 $0.00 $0.00
Disclosure

SEC source: 0001039399-24-000043 · wk-form4_1731107133.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 533,807

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 05, 2024 Filed Nov 6, 2024 21:21 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 3,644 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001039399-24-000039 · wk-form4_1730928055.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,084

Underlying: Common Stock · 3,644 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Restricted Stock Units granted on August 5, 2024 vest in twelve (12) quarterly installments beginning on November 5, 2024 and end on August 5, 2027 and will be settled into shares of common stocks on or following the vesting date.

F3 · derivative.expiration_date: 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.

Read SEC document
November 05, 2024 Filed Nov 6, 2024 21:21 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 2,021 $39.23 $79,283.83
Disclosure

SEC source: 0001039399-24-000039 · wk-form4_1730928055.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 527,899

F1 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
November 05, 2024 Filed Nov 6, 2024 21:21 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 3,644 $0.00 $0.00
Disclosure

SEC source: 0001039399-24-000039 · wk-form4_1730928055.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 529,920

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 01, 2024 Filed Nov 4, 2024 21:13 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,000 $38.81 $155,249.20
Disclosure

SEC source: 0001039399-24-000032 · wk-form4_1730754797.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 526,276

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $38.56 through $39.19. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2024 Filed Oct 2, 2024 20:27 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,000 $46.00 $46,001.00
Disclosure

SEC source: 0001590177-24-000038 · wk-form4_1727900849.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 530,276

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $45.975 through $46.085. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2024 Filed Oct 2, 2024 20:27 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 3,000 $45.04 $135,128.40
Disclosure

SEC source: 0001590177-24-000038 · wk-form4_1727900849.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,276

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $44.63 through $45.51. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
September 03, 2024 Filed Sep 5, 2024 00:03 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,188 $47.17 $56,040.22
Disclosure

SEC source: 0001590177-24-000036 · wk-form4_1725489182.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 534,276

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $46.69 through $47.40. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
September 03, 2024 Filed Sep 5, 2024 00:03 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 2,812 $45.94 $129,197.06
Disclosure

SEC source: 0001590177-24-000036 · wk-form4_1725489182.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 535,464

F1 · shares: The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on November 20, 2023.

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $45.68 through $46.36. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
August 07, 2024 Filed Aug 9, 2024 00:09 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 5,908 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001590177-24-000032 · wk-form4_1723162168.xml · derivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,264

Underlying: Common Stock · 5,908 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Restricted Stock Units vest in twelve (12) quarterly installments beginning on November 7, 2023 and end on August 7, 2026 and will be settled into shares of common stocks on or following the vesting date.

F3 · derivative.expiration_date: 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.

Read SEC document
August 07, 2024 Filed Aug 9, 2024 00:09 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,276 $43.11 $141,228.36
Disclosure

SEC source: 0001590177-24-000032 · wk-form4_1723162168.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 538,276

F1 · shares: Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.

Read SEC document
August 07, 2024 Filed Aug 9, 2024 00:09 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 5,908 $0.00 $0.00
Disclosure

SEC source: 0001590177-24-000032 · wk-form4_1723162168.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 541,552

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.