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person · Reporting owner

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
October 14, 2026 Filed Oct 15, 2026 00:06 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,200 $125.92 $151,104.00
Disclosure

SEC source: 0001628280-26-065922 · wk-form4_1792022778.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 455,596

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

F4 · price: 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.

Read SEC document
October 14, 2026 Filed Oct 15, 2026 00:06 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 7,703 $125.36 $965,648.08
Disclosure

SEC source: 0001628280-26-065922 · wk-form4_1792022778.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 456,796

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

F3 · price: 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.

Read SEC document
October 14, 2026 Filed Oct 15, 2026 00:06 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 2,195 $124.23 $272,684.85
Disclosure

SEC source: 0001628280-26-065922 · wk-form4_1792022778.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 464,499

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

F2 · price: 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.

Read SEC document
September 16, 2026 Filed Sep 17, 2026 23:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,000 $105.80 $105,800.00
Disclosure

SEC source: 0001628280-26-062602 · wk-form4_1789687851.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 466,694

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

Read SEC document
September 16, 2026 Filed Sep 17, 2026 23:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 7,773 $105.12 $817,097.76
Disclosure

SEC source: 0001628280-26-062602 · wk-form4_1789687851.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 467,694

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

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $104.66 through $105.615. 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 16, 2026 Filed Sep 17, 2026 23:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 8,737 $104.26 $910,919.62
Disclosure

SEC source: 0001628280-26-062602 · wk-form4_1789687851.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 475,467

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

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $103.65 through $104.63. 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 14, 2026 Filed Aug 17, 2026 22:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 686 $133.33 $91,464.38
Disclosure

SEC source: 0001628280-26-057485 · wk-form4_1787004992.xml · nonDerivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 484,204

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

F7 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $133.255 through $133.53. 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
August 14, 2026 Filed Aug 17, 2026 22:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 5,535 $132.50 $733,387.50
Disclosure

SEC source: 0001628280-26-057485 · wk-form4_1787004992.xml · nonDerivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 484,890

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

F6 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $132.17 through $132.95. 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 14, 2026 Filed Aug 17, 2026 22:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,125 $131.65 $148,106.25
Disclosure

SEC source: 0001628280-26-057485 · wk-form4_1787004992.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 490,425

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

F5 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $131.30 through $131.75. 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 14, 2026 Filed Aug 17, 2026 22:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 3,282 $130.54 $428,432.28
Disclosure

SEC source: 0001628280-26-057485 · wk-form4_1787004992.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 491,550

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

F4 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $130.255 through $131.00. 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 14, 2026 Filed Aug 17, 2026 22:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 2,892 $129.55 $374,658.60
Disclosure

SEC source: 0001628280-26-057485 · wk-form4_1787004992.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 494,832

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

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $129.29 through $129.80. 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 14, 2026 Filed Aug 17, 2026 22:16 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 2,482 $128.72 $319,483.04
Disclosure

SEC source: 0001628280-26-057485 · wk-form4_1787004992.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 497,724

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

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $128.14 through $129.01. 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, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 5,908 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · derivative · entry 8

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

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.

F7 · 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 stock on or following the vesting dates.

F6 · 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, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionPerformance-based Restricted Stock Units · Derivative 141,792 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · derivative · entry 7

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 141,792 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 7/1/2023 - 6/30/2026. 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 7/1/2023 - 6/30/2026. The Compensation Committee has determined that such performance criteria have been met.

Read SEC document
August 07, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 GrantPerformance-based Restricted Stock Units · Derivative 141,792 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · derivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,792

Underlying: Common Stock · 141,792 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 7/1/2023 - 6/30/2026. 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 7/1/2023 - 6/30/2026. The Compensation Committee has determined that such performance criteria have been met.

Read SEC document
August 07, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,288 $117.39 $385,978.32
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 500,206

F4 · shares: Represents the number of shares withheld upon vesting of Restricted Stock Units to cover tax withholding obligations.

Read SEC document
August 07, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 5,908 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 503,494

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 · 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 07, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 78,908 $117.39 $9,263,010.12
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 497,586

F2 · shares: Represents the number of shares withheld upon vesting and settlement of the Performance-based Restricted Stock Units to cover tax withholding obligations.

Read SEC document
August 07, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 141,792 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 576,494

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 7/1/2023 - 6/30/2026. The Compensation Committee has determined that such performance criteria have been met.

Read SEC document
August 06, 2026 Filed Aug 7, 2026 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 6,031 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001628280-26-054951 · wk-form4_1786139777.xml · derivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,248

Underlying: Common Stock · 6,031 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.

F5 · derivative.exercise_date: The Restricted Stock Units granted on August 6, 2025 vest in twelve (12) quarterly installments beginning on November 6, 2025 and ending on August 6, 2028 and will be settled into shares of common stock 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 06, 2026 Filed Aug 7, 2026 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 3,357 $115.21 $386,759.97
Disclosure

SEC source: 0001628280-26-054951 · wk-form4_1786139777.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 434,702

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

Read SEC document
August 06, 2026 Filed Aug 7, 2026 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 6,031 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-054951 · wk-form4_1786139777.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 438,059

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, 2026 Filed Aug 10, 2026 22:58 UTC FORMFACTOR INC FORM · Entity 3670 GrantRestricted Stock Units · Derivative 27,696 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001628280-26-055434 · wk-form4_1786402716.xml · derivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,696

Underlying: Common Stock · 27,696 shares

Expires not disclosed

F5 · derivative.exercise_date: The Restricted Stock Units granted on August 6, 2026 vest in twelve (12) quarterly installments beginning on November 6, 2026 and end on August 6, 2029 and will be settled into shares of common stocks on or following the vesting date.

F6 · 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, 2026 Filed Aug 7, 2026 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionRestricted Stock Units · Derivative 3,644 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001628280-26-054951 · wk-form4_1786139777.xml · derivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,576

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.

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 stock 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, 2026 Filed Aug 7, 2026 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Tax withholdingCommon Stock 2,028 $114.44 $232,084.32
Disclosure

SEC source: 0001628280-26-054951 · wk-form4_1786139777.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 432,028

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

Read SEC document
August 05, 2026 Filed Aug 7, 2026 21:56 UTC FORMFACTOR INC FORM · Entity 3670 Exercise / conversionCommon Stock 3,644 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-054951 · wk-form4_1786139777.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 434,056

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
July 15, 2026 Filed Jul 16, 2026 21:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 868 $121.30 $105,288.40
Disclosure

SEC source: 0001628280-26-048529 · wk-form4_1784237440.xml · nonDerivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 430,412

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

F7 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $121.14 through $121.38. 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
July 15, 2026 Filed Jul 16, 2026 21:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 300 $120.58 $36,174.00
Disclosure

SEC source: 0001628280-26-048529 · wk-form4_1784237440.xml · nonDerivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 431,280

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

F6 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $120.215 through $120.76. 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
July 15, 2026 Filed Jul 16, 2026 21:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 170 $119.08 $20,243.60
Disclosure

SEC source: 0001628280-26-048529 · wk-form4_1784237440.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 431,580

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

F5 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $119.075 through $119.085. 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.

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July 15, 2026 Filed Jul 16, 2026 21:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 706 $118.21 $83,456.26
Disclosure

SEC source: 0001628280-26-048529 · wk-form4_1784237440.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 431,750

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

F4 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $117.985 through $118.8. 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.

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July 15, 2026 Filed Jul 16, 2026 21:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,650 $117.39 $193,693.50
Disclosure

SEC source: 0001628280-26-048529 · wk-form4_1784237440.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 432,456

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

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $116.995 through $117.9. 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.

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July 15, 2026 Filed Jul 16, 2026 21:30 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,041 $116.56 $121,338.96
Disclosure

SEC source: 0001628280-26-048529 · wk-form4_1784237440.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 434,106

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

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $115.995 through $116.985. 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.

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June 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,629 $123.37 $200,969.73
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 7

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 435,147

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

F5 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $123.365 through $123.39. 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 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 2,500 $122.63 $306,575.00
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 436,776

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

F4 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $122.25 through $123. 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 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 4,220 $121.72 $513,658.40
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 439,276

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

F3 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $121.22 through $122.04. 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
June 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 975 $121.00 $117,975.00
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 443,496

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

Read SEC document
June 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 400 $119.46 $47,784.00
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 444,471

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

Read SEC document
June 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 767 $119.00 $91,273.00
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 2

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 444,871

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

Read SEC document
June 10, 2026 Filed Jun 11, 2026 23:05 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,399 $117.70 $164,662.30
Disclosure

SEC source: 0001628280-26-042611 · wk-form4_1781219151.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 445,638

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

F2 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $117.14 through $117.87. 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 27, 2026 Filed May 28, 2026 23:35 UTC BENCHMARK ELECTRONICS INC BHE · Entity 4343 GrantCommon Stock 2,093 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-245774 · ownership.xml · nonDerivative · entry 1

SLESSOR MIKE · CIK 0001590177 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,349

F1 · shares: 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.

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May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 702 $136.15 $95,577.30
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 12

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 447,037

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

Read SEC document
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 66 $135.73 $8,958.18
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 11

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 447,739

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

Read SEC document
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 200 $132.63 $26,526.00
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 10

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 447,805

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

Read SEC document
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 200 $130.57 $26,114.00
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 9

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 448,005

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

Read SEC document
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 700 $129.33 $90,531.00
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 8

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 448,205

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

F8 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $129.22 through $129.42. 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 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 700 $128.52 $89,964.00
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 7

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 448,905

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

F7 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $128.37 through $129.07. 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
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 100 $127.47 $12,747.00
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 6

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 449,605

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

Read SEC document
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 398 $126.59 $50,382.82
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 5

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 449,705

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

F6 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $126.37 through $127.14. 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 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 1,388 $125.58 $174,305.04
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 4

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 450,103

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

F5 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $125.26 through $126.04. 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
May 13, 2026 Filed May 14, 2026 21:32 UTC FORMFACTOR INC FORM · Entity 3670 SaleCommon Stock 2,984 $124.71 $372,134.64
Disclosure

SEC source: 0001628280-26-035233 · wk-form4_1778794331.xml · nonDerivative · entry 3

SLESSOR MIKE · CIK 0001590177 · Director · CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 451,491

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

F4 · price: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $124.22 through $125.20. 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

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