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person · Reporting owner

SOHN YOUNG

Disclosed activity across 2 companies

Tapewire entity
27349
SEC CIK
0001223726

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ARM HOLDINGS PLC /UKARM · Entity 2828DirectorMay 15, 2026May 19, 2026
CADENCE DESIGN SYSTEMS INCCDNS · Entity 2935DirectorJuly 30, 2026August 04, 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.

ARM HOLDINGS PLC /UK

Report date May 15, 2026 · Filed May 19, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect2,396 Last balance in matching sequence After 2026-05-15 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2026-05-15 · Exercise / conversion · Acquired 2,141 · Balance 2,825

F1: Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

F2: The restricted stock units ("RSUs") vested in full on May 15, 2026.

F3: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

Row 2 · 2026-05-15 · Tax withholding · Disposed 429 · Balance 2,396

F1: Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

F4: Ordinary Shares withheld to satisfy tax withholding requirements on vesting of RSUs.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect0 Reported balance After 2026-05-15 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-05-15 · Exercise / conversion · Disposed 2,141 · Balance 0

F3: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

F2: The restricted stock units ("RSUs") vested in full on May 15, 2026.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect1,531 Reported balance After 2026-05-15 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-05-15 · Grant · Acquired 1,531 · Balance 1,531

F3: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

F5: The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc, but the ADSs will not be delivered until the date of termination of Mr. Sohn's service on the Board of Directors pursuant to his election to defer such delivery.

Filing footnotes · ownership attribution and instrument terms

F1: Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

F2: The restricted stock units ("RSUs") vested in full on May 15, 2026.

F3: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

F4: Ordinary Shares withheld to satisfy tax withholding requirements on vesting of RSUs.

F5: The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc, but the ADSs will not be delivered until the date of termination of Mr. Sohn's service on the Board of Directors pursuant to his election to defer such delivery.

CADENCE DESIGN SYSTEMS INC

Report date July 30, 2026 · Filed August 04, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect15,243 Reported balance After 2026-07-30 transaction · row 1
1 source row

Row 1 · 2026-07-30 · Gift · Disposed 9 · Balance 15,243

F1: Shares transferred as a charitable gift by the Reporting Person.

Filing footnotes · ownership attribution and instrument terms

F1: Shares transferred as a charitable gift by the Reporting Person.

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
July 30, 2026 Filed Aug 4, 2026 00:51 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GiftCommon Stock 9 $0.00 $0.00
Disclosure

SEC source: 0001223726-26-000001 · wk-form4_1785804672.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,243

F1 · shares: Shares transferred as a charitable gift by the Reporting Person.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:53 UTC ARM HOLDINGS PLC /UK ARM · Entity 2828 GrantRestricted Stock Units · Derivative 1,531 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036538 · wk-form4_1779224025.xml · derivative · entry 4

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,531

Underlying: Ordinary Shares · 1,531 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

F5 · derivative.exercise_date: The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc, but the ADSs will not be delivered until the date of termination of Mr. Sohn's service on the Board of Directors pursuant to his election to defer such delivery.

F5 · derivative.expiration_date: The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc, but the ADSs will not be delivered until the date of termination of Mr. Sohn's service on the Board of Directors pursuant to his election to defer such delivery.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:53 UTC ARM HOLDINGS PLC /UK ARM · Entity 2828 Exercise / conversionRestricted Stock Units · Derivative 2,141 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036538 · wk-form4_1779224025.xml · derivative · entry 3

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Ordinary Shares · 2,141 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_price: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

F2 · derivative.exercise_date: The restricted stock units ("RSUs") vested in full on May 15, 2026.

F2 · derivative.expiration_date: The restricted stock units ("RSUs") vested in full on May 15, 2026.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:53 UTC ARM HOLDINGS PLC /UK ARM · Entity 2828 Tax withholdingOrdinary Shares 429 $209.16 $89,729.64
Disclosure

SEC source: 0001628280-26-036538 · wk-form4_1779224025.xml · nonDerivative · entry 2

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,396

F1 · security: Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

F4 · kind: Ordinary Shares withheld to satisfy tax withholding requirements on vesting of RSUs.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:53 UTC ARM HOLDINGS PLC /UK ARM · Entity 2828 Exercise / conversionOrdinary Shares 2,141 Not disclosed Not disclosed
Disclosure

SEC source: 0001628280-26-036538 · wk-form4_1779224025.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,825

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 · security: Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

F2 · shares: The restricted stock units ("RSUs") vested in full on May 15, 2026.

F3 · price: Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

Read SEC document
May 07, 2026 Filed May 11, 2026 21:21 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 714 $0.00 $0.00
Disclosure

SEC source: 0000813672-26-000056 · wk-form4_1778534489.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,252

F1 · shares: Restricted stock award fully vests on the earlier to occur of (i) the first anniversary of the Grant Date and (ii) the date of the next Annual Meeting of Stockholders that follows the Grant Date.

Read SEC document
May 06, 2026 Filed May 8, 2026 21:45 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GiftCommon Stock 72 $354.90 $25,552.80
Disclosure

SEC source: 0000813672-26-000051 · wk-form4_1778276703.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,538

F1 · shares: Shares transferred as a charitable gift by the Reporting Person.

Read SEC document
June 12, 2025 Filed Jun 16, 2025 22:50 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GiftCommon Stock 110 $307.85 $33,863.50
Disclosure

SEC source: 0000813672-25-000085 · wk-form4_1750114216.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,610

F1 · shares: Shares transferred as a charitable gift by the Reporting Person.

Read SEC document
May 08, 2025 Filed May 12, 2025 23:15 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 779 $0.00 $0.00
Disclosure

SEC source: 0000813672-25-000067 · wk-form4_1747091738.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,720

F1 · shares: Restricted stock award fully vests on the earlier to occur of (i) the first anniversary of the Grant Date and (ii) the date of the next Annual Meeting of Stockholders that follows the Grant Date.

Read SEC document
May 02, 2024 Filed May 6, 2024 21:35 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 868 $0.00 $0.00
Disclosure

SEC source: 0000813672-24-000114 · wk-form4_1715031331.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,941

F1 · shares: Restricted stock award fully vests on the earlier to occur of (i) the first anniversary of the Grant Date and (ii) the date of the next Annual Meeting of Stockholders that follows the Grant Date.

Read SEC document
December 15, 2023 Filed Dec 19, 2023 23:12 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 Exercise / conversionNon- Qualified Stock Option (right to buy) · Derivative 10,000 $0.00 Strike: $13.81 $0.00
Disclosure

SEC source: 0001209191-23-059245 · doc4.xml · derivative · entry 2

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2024-02-04

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
December 15, 2023 Filed Dec 19, 2023 23:12 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 Exercise / conversionCommon Stock 10,000 $13.81 $138,100.00
Disclosure

SEC source: 0001209191-23-059245 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,073

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 30, 2023 Filed Jun 1, 2023 22:16 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 OtherCommon Stock 9,473 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-033413 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,073

F1 · shares: This transaction involved a transfer of securities by the Reporting Person to his ex-wife. The Reporting Person disclaims beneficial ownership of the shares held by his ex-wife, and this report should not be deemed an admission that the Reporting Person is the beneficial owner of his ex-wife's shares for purposes of Section 16 or for any other purpose.

Read SEC document
May 04, 2023 Filed May 8, 2023 21:12 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 1,073 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-028006 · doc4.xml · nonDerivative · entry 2

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,546

F2 · shares: Incentive stock award fully vests on the earlier to occur of (i) the first anniversary of the Grant Date and (ii) the date of the next Annual Meeting of Stockholders that follows the Grant Date.

Read SEC document
November 30, 2022 Filed Dec 2, 2022 23:51 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 Exercise / conversionNon- Qualified Stock Option (right to buy) · Derivative 10,000 $0.00 Strike: $14.36 $0.00
Disclosure

SEC source: 0001209191-22-059496 · doc4.xml · derivative · entry 3

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2023-02-12

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 30, 2022 Filed Dec 2, 2022 23:51 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 SaleCommon Stock 10,000 $166.00 $1,660,000.00
Disclosure

SEC source: 0001209191-22-059496 · doc4.xml · nonDerivative · entry 2

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,372

Read SEC document
November 30, 2022 Filed Dec 2, 2022 23:51 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 Exercise / conversionCommon Stock 10,000 $14.36 $143,600.00
Disclosure

SEC source: 0001209191-22-059496 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,372

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 27, 2022 Filed Jun 1, 2022 23:18 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 SaleCommon Stock 16,275 $150.00 $2,441,250.00
Disclosure

SEC source: 0001209191-22-033306 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,372

Read SEC document
May 05, 2022 Filed May 9, 2022 22:54 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 1,473 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-027944 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,647

F1 · shares: Incentive stock award fully vests on the earlier to occur of (i) the first anniversary of the Grant Date and (ii) the date of the next Annual Meeting of Stockholders that follows the Grant Date.

Read SEC document
December 07, 2021 Filed May 8, 2023 21:12 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GiftCommon Stock 24,899 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-028006 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,473

F1 · shares: This transaction involved a gift of securities by the Reporting Person to his ex-wife. The Reporting Person disclaims beneficial ownership of the shares held by his ex-wife, and this report should not be deemed an admission that the Reporting Person is the beneficial owner of his ex-wife's shares for purposes of Section 16 or for any other purpose.

Read SEC document
February 25, 2021 Filed Mar 2, 2021 02:17 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 1,377 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-015530 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,174

F1 · shares: Incentive stock award fully vests on February 25, 2022.

Read SEC document
February 14, 2020 Filed Feb 19, 2020 23:36 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 2,412 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-010772 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,797

F1 · shares: Incentive stock award fully vests on February 14, 2021.

Read SEC document
February 22, 2019 Filed Feb 26, 2019 20:33 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 3,359 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-013418 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,385

F1 · shares: Incentive stock award fully vests on February 22, 2020.

Read SEC document
February 07, 2018 Filed Feb 9, 2018 21:24 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 4,926 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-008812 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,026

F1 · shares: Incentive stock award fully vests on February 7, 2019.

Read SEC document
February 21, 2017 Filed Feb 23, 2017 00:16 UTC CADENCE DESIGN SYSTEMS INC CDNS · Entity 2935 GrantCommon Stock 5,521 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-013530 · doc4.xml · nonDerivative · entry 1

SOHN YOUNG · CIK 0001223726 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,100

F1 · shares: Incentive stock award fully vests on February 21, 2018.

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.