Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| AMTECH SYSTEMS INCASYS · Entity 6122 | Director | March 04, 2026 | March 06, 2026 |
| FORMFACTOR INCFORM · Entity 3670 | SR VP, CFO | February 20, 2018 | February 22, 2018 |
| ROGERS CORPROG · Entity 4438 | SVP, CFO, Treasurer | February 12, 2021 | February 17, 2021 |
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.
AMTECH SYSTEMS INC
Report date March 04, 2026 · Filed March 06, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Amtech Systems, Inc. $0.01 par value common stockSEC Table I · non-derivative | Direct | 33,069 |
Reported balance
After 2026-03-05 transaction · row 1
1 source rowRow 1 · 2026-03-05 · Exercise / conversion · Acquired 8,081 · Balance 33,069 |
| Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2027-03-04 | Direct | 2,839 |
Reported balance
After 2026-03-04 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-03-04 · Grant · Acquired 2,839 · Balance 2,839 F1: Each restricted stock unit represents a contingent right to receive one share of Common Stock of Amtech Systems, Inc. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2026-03-05 | Direct | 2,839 |
Reported balance
After 2026-03-05 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-03-05 · Exercise / conversion · Disposed 8,081 · Balance 2,839 F1: Each restricted stock unit represents a contingent right to receive one share of Common Stock of Amtech Systems, Inc. |
Filing footnotes · ownership attribution and instrument terms
F1: Each restricted stock unit represents a contingent right to receive one share of Common Stock of Amtech Systems, Inc.
FORMFACTOR INC
Report date February 20, 2018 · Filed February 22, 2018
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 240,387 |
Ending reported balance
After 2018-02-22 transaction · row 6
6 source rows · reconciled sequenceRow 1 · 2018-02-20 · Exercise / conversion · Acquired 2,500 · Balance 242,887 Row 2 · 2018-02-20 · Sale · Disposed 2,500 · Balance 240,387 F1: Price represents the sale price for the transaction reported. Price of the shares sold is $13.375. 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 · 2018-02-21 · Exercise / conversion · Acquired 25,000 · Balance 265,387 Row 4 · 2018-02-21 · Sale · Disposed 25,000 · Balance 240,387 F2: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $12.95 through $13.2. 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 5 · 2018-02-22 · Exercise / conversion · Acquired 17,500 · Balance 257,887 Row 6 · 2018-02-22 · Sale · Disposed 17,500 · Balance 240,387 F3: Price represents the sale price for the transaction reported. Price of shares sold is $13.00. 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. |
| Non-Qualified Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $10.37 · Expires 2018-04-29 | Direct | 42,500 |
Reported balance
After 2018-02-20 transaction · row 7
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 7 · 2018-02-20 · Exercise / conversion · Disposed 2,500 · Balance 42,500 F4: The Stock Option was granted pursuant to the Issuer's 2002 Equity Incentive Plan and vest over 4 years, with 25% vesting on April 29, 2012 and the remainder vesting in equal annual installments over the following three years. |
| Non-Qualified Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $10.37 · Expires 2018-04-29 | Direct | 17,500 |
Reported balance
After 2018-02-21 transaction · row 8
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 8 · 2018-02-21 · Exercise / conversion · Disposed 25,000 · Balance 17,500 F4: The Stock Option was granted pursuant to the Issuer's 2002 Equity Incentive Plan and vest over 4 years, with 25% vesting on April 29, 2012 and the remainder vesting in equal annual installments over the following three years. |
| Non-Qualified Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $10.37 · Expires 2018-04-29 | Direct | 0 |
Reported balance
After 2018-02-22 transaction · row 9
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 9 · 2018-02-22 · Exercise / conversion · Disposed 17,500 · Balance 0 F4: The Stock Option was granted pursuant to the Issuer's 2002 Equity Incentive Plan and vest over 4 years, with 25% vesting on April 29, 2012 and the remainder vesting in equal annual installments over the following three years. |
Filing footnotes · ownership attribution and instrument terms
F1: Price represents the sale price for the transaction reported. Price of the shares sold is $13.375. 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.
F2: Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $12.95 through $13.2. 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 sale price for the transaction reported. Price of shares sold is $13.00. 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.
F4: The Stock Option was granted pursuant to the Issuer's 2002 Equity Incentive Plan and vest over 4 years, with 25% vesting on April 29, 2012 and the remainder vesting in equal annual installments over the following three years.
ROGERS CORP
Report date February 12, 2021 · Filed February 17, 2021
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Capital (Common) StockSEC Table I · non-derivative | Direct | 7,123 |
Reported balance
After 2021-02-12 transaction · row 1
1 source rowRow 1 · 2021-02-12 · Tax withholding · Disposed 327 · Balance 7,123 F1: Shares withheld by the Company to satisfy tax withholding requirements on vesting of time-based restricted stock units. |
Filing footnotes · ownership attribution and instrument terms
F1: Shares withheld by the Company to satisfy tax withholding requirements on vesting of time-based restricted stock units.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| July 20, 2017 Filed Jul 21, 2017 23:21 UTC | FORMFACTOR INC FORM · Entity 3670 | GrantRestricted Stock Units · Derivative | 26,000 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000060 · wf-form4_150067926710068.xml · derivative · entry 1 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,000 Underlying: Common Stock · 26,000 shares Expires not disclosed F1 · derivative.exercise_date: The Restricted Stock Units vest in three annual installments on each July 20 of 2018, 2019, and 2020 and will be settled into shares of common stocks on or following the vesting dates. F1 · derivative.expiration_date: The Restricted Stock Units vest in three annual installments on each July 20 of 2018, 2019, and 2020 and will be settled into shares of common stocks on or following the vesting dates. Read SEC document |
| May 28, 2017 Filed May 31, 2017 23:16 UTC | FORMFACTOR INC FORM · Entity 3670 | Exercise / conversionRestricted Stock Units · Derivative | 10,000 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000048 · wf-form4_149627258269835.xml · derivative · entry 3 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,000 Underlying: Common Stock · 10,000 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 and are exercisable in three annual installments on each May 28 of 2016, 2017, and 2018. F3 · derivative.expiration_date: The restricted stock units released were settled in shares of common stock and were immediately cancelled upon settlement. Read SEC document |
| May 28, 2017 Filed May 31, 2017 23:16 UTC | FORMFACTOR INC FORM · Entity 3670 | Tax withholdingCommon Stock | 5,218 | $14.40 | $75,139.20 |
DisclosureSEC source: 0001039399-17-000048 · wf-form4_149627258269835.xml · nonDerivative · entry 2 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 253,514 F1 · shares: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs. The Reporting Person did not sell or otherwise dispose of any of the shares for any reason other than to cover required taxes. Read SEC document |
| May 28, 2017 Filed May 31, 2017 23:16 UTC | FORMFACTOR INC FORM · Entity 3670 | Exercise / conversionCommon Stock | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000048 · wf-form4_149627258269835.xml · nonDerivative · entry 1 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 258,732 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 |
| May 05, 2017 Filed May 9, 2017 22:31 UTC | FORMFACTOR INC FORM · Entity 3670 | Exercise / conversionRestricted Stock Units · Derivative | 15,000 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000021 · wf-form4_149436906963657.xml · derivative · entry 3 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 15,000 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 and are exercisable in three annual installments on each May 5 of 2015, 2016, and 2017 (or the first market trading day during an open trading window under the Issuer's insider trading policy thereafter if the applicable vesting date is not on a market trading day during an open trading window). F3 · derivative.expiration_date: The restricted stock units released were settled in shares of common stock and were immediately cancelled upon settlement. Read SEC document |
| May 05, 2017 Filed May 9, 2017 22:31 UTC | FORMFACTOR INC FORM · Entity 3670 | Tax withholdingCommon Stock | 5,637 | $14.25 | $80,327.25 |
DisclosureSEC source: 0001039399-17-000021 · wf-form4_149436906963657.xml · nonDerivative · entry 2 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 248,732 F1 · shares: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs. The Reporting Person did not sell or otherwise dispose of any of the shares for any reason other than to cover required taxes. Read SEC document |
| May 05, 2017 Filed May 9, 2017 22:31 UTC | FORMFACTOR INC FORM · Entity 3670 | Exercise / conversionCommon Stock | 15,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000021 · wf-form4_149436906963657.xml · nonDerivative · entry 1 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 254,369 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 |
| May 01, 2017 Filed May 3, 2017 21:32 UTC | FORMFACTOR INC FORM · Entity 3670 | Exercise / conversionPerformance Shares · Derivative | 46,350 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000019 · wf-form4_149384715991763.xml · derivative · entry 4 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 46,350 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: Represents the amount of performance-based restricted stock units (granted in May 2015) that were determined to be earned based on TSR for the two-year performance period ended March 31, 2017. These units are fully vested, and the underlying shares were released on May 1, 2017. F3 · derivative.expiration_date: The restricted stock units released were settled in shares of common stock and were immediately cancelled upon settlement. Read SEC document |
| May 01, 2017 Filed May 3, 2017 21:32 UTC | FORMFACTOR INC FORM · Entity 3670 | GrantPerformance Shares · Derivative | 46,350 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000019 · wf-form4_149384715991763.xml · derivative · entry 3 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,350 Underlying: Common Stock · 46,350 shares Expires not disclosed F1 · derivative.exercise_date: Represents the amount of performance-based restricted stock units (granted in May 2015) that were determined to be earned based on TSR for the two-year performance period ended March 31, 2017. These units are fully vested, and the underlying shares were released on May 1, 2017. F1 · derivative.expiration_date: Represents the amount of performance-based restricted stock units (granted in May 2015) that were determined to be earned based on TSR for the two-year performance period ended March 31, 2017. These units are fully vested, and the underlying shares were released on May 1, 2017. Read SEC document |
| May 01, 2017 Filed May 3, 2017 21:32 UTC | FORMFACTOR INC FORM · Entity 3670 | Tax withholdingCommon Stock | 17,379 | $11.75 | $204,203.25 |
DisclosureSEC source: 0001039399-17-000019 · wf-form4_149384715991763.xml · nonDerivative · entry 2 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 239,369 F2 · shares: Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs. The Reporting Person did not sell or otherwise dispose of any of the shares for any reason other than to cover required taxes. Read SEC document |
| May 01, 2017 Filed May 3, 2017 21:32 UTC | FORMFACTOR INC FORM · Entity 3670 | Exercise / conversionCommon Stock | 46,350 | $0.00 | $0.00 |
DisclosureSEC source: 0001039399-17-000019 · wf-form4_149384715991763.xml · nonDerivative · entry 1 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 256,748 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: Represents the amount of performance-based restricted stock units (granted in May 2015) that were determined to be earned based on TSR for the two-year performance period ended March 31, 2017. These units are fully vested, and the underlying shares were released on May 1, 2017. Read SEC document |
| March 27, 2017 Filed Feb 12, 2018 19:29 UTC | FORMFACTOR INC FORM · Entity 3670 | SaleCommon Stock | 10 | $10.81 | $108.10 |
DisclosureSEC source: 0001039399-18-000004 · wf-form4_151846377840908.xml · nonDerivative · entry 5 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 240,387 F1 · shares: Common Shares sold: 40 shares 9/18/15, 1 share 12/18/15, 12 shares 3/18/16, 1 share 6/17/16 and 10 shares 3/27/17 to cover brokerage fees Read SEC document |
| June 17, 2016 Filed Feb 12, 2018 19:29 UTC | FORMFACTOR INC FORM · Entity 3670 | SaleCommon Stock | 1 | $8.11 | $8.11 |
DisclosureSEC source: 0001039399-18-000004 · wf-form4_151846377840908.xml · nonDerivative · entry 4 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 240,397 F1 · shares: Common Shares sold: 40 shares 9/18/15, 1 share 12/18/15, 12 shares 3/18/16, 1 share 6/17/16 and 10 shares 3/27/17 to cover brokerage fees Read SEC document |
| March 18, 2016 Filed Feb 12, 2018 19:29 UTC | FORMFACTOR INC FORM · Entity 3670 | SaleCommon Stock | 12 | $7.64 | $91.68 |
DisclosureSEC source: 0001039399-18-000004 · wf-form4_151846377840908.xml · nonDerivative · entry 3 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 240,398 F1 · shares: Common Shares sold: 40 shares 9/18/15, 1 share 12/18/15, 12 shares 3/18/16, 1 share 6/17/16 and 10 shares 3/27/17 to cover brokerage fees Read SEC document |
| December 18, 2015 Filed Feb 12, 2018 19:29 UTC | FORMFACTOR INC FORM · Entity 3670 | SaleCommon Stock | 1 | $8.72 | $8.72 |
DisclosureSEC source: 0001039399-18-000004 · wf-form4_151846377840908.xml · nonDerivative · entry 2 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 240,410 F1 · shares: Common Shares sold: 40 shares 9/18/15, 1 share 12/18/15, 12 shares 3/18/16, 1 share 6/17/16 and 10 shares 3/27/17 to cover brokerage fees Read SEC document |
| September 18, 2015 Filed Feb 12, 2018 19:29 UTC | FORMFACTOR INC FORM · Entity 3670 | SaleCommon Stock | 40 | $6.75 | $270.05 |
DisclosureSEC source: 0001039399-18-000004 · wf-form4_151846377840908.xml · nonDerivative · entry 1 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 240,411 F1 · shares: Common Shares sold: 40 shares 9/18/15, 1 share 12/18/15, 12 shares 3/18/16, 1 share 6/17/16 and 10 shares 3/27/17 to cover brokerage fees Read SEC document |
| May 05, 2015 Filed Feb 12, 2018 19:34 UTC Amendment | FORMFACTOR INC FORM · Entity 3670 | SaleCommon Stock | 681 | $8.20 | $5,584.20 |
DisclosureSEC source: 0001039399-18-000006 · wf-form4a_151846406157879.xml · nonDerivative · entry 1 LUDWIG MICHAEL M · CIK 0001256949 · SR VP, CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 240,451 F1 · date: Amendment to 5/6/15 Form 4 Filing. Additional vested shares of common stock sold to satisfy certain tax withholding obligations associated with the conversion of the restricted stock units 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.