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WLK

WESTLAKE CORP

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Tapewire entity
3555
SEC CIK
0001262823
Parsed reports
574

Last 12 months

Inside the activity.

0 purchase rows · 9 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202503
Jan 202600
Feb 202602
Mar 202602
Apr 202600
May 202600
Jun 202600
Jul 202600
Aug 202602
Sep 202600
Oct 202600

Latest available

Insider transactions

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
February 17, 2026 Filed Feb 19, 2026 20:19 UTC
Chao AlbertDirector · Executive Chairman
Exercise / conversionRestricted Stock Units · Derivative 16,555 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059211 · ownership.xml · derivative · entry 3

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,555 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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: On February 17, 2023, the reporting person was granted 16,555 RSUs vesting on the third anniversay of the grant date.

F2 · derivative.expiration_date: On February 17, 2023, the reporting person was granted 16,555 RSUs vesting on the third anniversay of the grant date.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:19 UTC
Chao AlbertDirector · Executive Chairman
Exercise / conversionCommon Stock 16,555 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059211 · ownership.xml · nonDerivative · entry 1

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 644,277

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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:19 UTC
Ederington L. BenjaminEVP, Legal & External Affairs
Exercise / conversionRestricted Stock Units · Derivative 3,809 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059215 · ownership.xml · derivative · entry 3

Ederington L. Benjamin · CIK 0001588279 · EVP, Legal & External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,809 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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: On February 17, 2023, the reporting person was granted 3,809 RSUs vesting on the third anniversay of the grant date.

F2 · derivative.expiration_date: On February 17, 2023, the reporting person was granted 3,809 RSUs vesting on the third anniversay of the grant date.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:19 UTC
Ederington L. BenjaminEVP, Legal & External Affairs
Exercise / conversionCommon Stock 3,809 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059215 · ownership.xml · nonDerivative · entry 1

Ederington L. Benjamin · CIK 0001588279 · EVP, Legal & External Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,068

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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:19 UTC Exercise / conversionRestricted Stock Units · Derivative 570 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059212 · ownership.xml · derivative · entry 3

Chao John Tsung-chen · CIK 0001746472 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 570 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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: On February 17, 2023, the reporting person was granted 570 RSUs vesting on the third anniversay of the grant date.

F2 · derivative.expiration_date: On February 17, 2023, the reporting person was granted 570 RSUs vesting on the third anniversay of the grant date.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:19 UTC Exercise / conversionCommon Stock 570 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059212 · ownership.xml · nonDerivative · entry 1

Chao John Tsung-chen · CIK 0001746472 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,608

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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:18 UTC Exercise / conversionRestricted Stock Units · Derivative 4,751 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059207 · ownership.xml · derivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,751 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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: On February 17, 2023, the reporting person was granted 4,751 RSUs vesting on the third anniversay of the grant date.

F2 · derivative.expiration_date: On February 17, 2023, the reporting person was granted 4,751 RSUs vesting on the third anniversay of the grant date.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 20:18 UTC Exercise / conversionCommon Stock 4,751 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-059207 · ownership.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,719

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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
December 22, 2025 Filed Dec 23, 2025 14:37 UTC
Chao AlbertDirector · Executive Chairman
Exercise / conversionEmployee Option (right to buy) · Derivative 81,673 $0.00 Strike: $44.42 $0.00
Disclosure

SEC source: 0001193125-25-329926 · ownership.xml · derivative · entry 5

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 81,673 shares

Expires 2026-02-18

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 stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2017, 2018 and 2019, respectively.

Read SEC document
December 22, 2025 Filed Dec 23, 2025 14:37 UTC
Chao AlbertDirector · Executive Chairman
SaleCommon Stock 521 $74.44 $38,784.80
Disclosure

SEC source: 0001193125-25-329926 · ownership.xml · nonDerivative · entry 4

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 627,722

F1 · kind: A portion of the sale proceeds were used to cover the strike price and related taxes in regards to the excercise of the options disclosed in Table II.

F4 · price: Weighted average price. These shares were sold in multiple transactions ranging from $74.405 to $74.515 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Read SEC document
December 22, 2025 Filed Dec 23, 2025 14:37 UTC
Chao AlbertDirector · Executive Chairman
SaleCommon Stock 30,604 $73.80 $2,258,452.78
Disclosure

SEC source: 0001193125-25-329926 · ownership.xml · nonDerivative · entry 3

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 628,243

F1 · kind: A portion of the sale proceeds were used to cover the strike price and related taxes in regards to the excercise of the options disclosed in Table II.

F3 · price: Weighted average price. These shares were sold in multiple transactions ranging from $73.40 to $74.40 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Read SEC document
December 22, 2025 Filed Dec 23, 2025 14:37 UTC
Chao AlbertDirector · Executive Chairman
SaleCommon Stock 9,711 $72.82 $707,135.60
Disclosure

SEC source: 0001193125-25-329926 · ownership.xml · nonDerivative · entry 2

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 658,847

F1 · kind: A portion of the sale proceeds were used to cover the strike price and related taxes in regards to the excercise of the options disclosed in Table II.

F2 · price: Weighted average price. These shares were sold in multiple transactions ranging from $72.395 to $73.39 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

Read SEC document
December 22, 2025 Filed Dec 23, 2025 14:37 UTC
Chao AlbertDirector · Executive Chairman
Exercise / conversionCommon Stock 81,673 $44.42 $3,627,914.66
Disclosure

SEC source: 0001193125-25-329926 · ownership.xml · nonDerivative · entry 1

Chao Albert · CIK 0001299403 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 668,558

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 10, 2025 Filed Dec 10, 2025 19:47 UTC Exercise / conversionRestricted Stock Units · Derivative 1,339 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-314045 · ownership.xml · derivative · entry 2

CREGG ROGER A · CIK 0001231239 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,339 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: On December 10, 2024 the reporting person was granted 1,339 restricted stock units vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On December 10, 2024 the reporting person was granted 1,339 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
December 10, 2025 Filed Dec 10, 2025 19:47 UTC Exercise / conversionCommon Stock 1,339 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-314045 · ownership.xml · nonDerivative · entry 1

CREGG ROGER A · CIK 0001231239 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,339

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
October 02, 2025 Filed Oct 3, 2025 12:20 UTC
Szwejbka Scott ThomasSVP, HIP Segment Head
Tax withholdingCommon Stock 3,842 $76.70 $294,681.40
Disclosure

SEC source: 0001193125-25-229590 · ownership.xml · nonDerivative · entry 2

Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,817

F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 12:20 UTC
Szwejbka Scott ThomasSVP, HIP Segment Head
Exercise / conversionRestricted Stock Units · Derivative 10,840 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-229590 · ownership.xml · derivative · entry 3

Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,840 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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: On October 1, 2021, the reporting person was granted 10,840 RSUs vesting on the fourth anniversay of the grant date.

F2 · derivative.expiration_date: On October 1, 2021, the reporting person was granted 10,840 RSUs vesting on the fourth anniversay of the grant date.

Read SEC document
October 01, 2025 Filed Oct 3, 2025 12:20 UTC
Szwejbka Scott ThomasSVP, HIP Segment Head
Exercise / conversionCommon Stock 10,840 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-229590 · ownership.xml · nonDerivative · entry 1

Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,659

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: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 28, 2025 Filed Aug 29, 2025 07:18 UTC
Chao JamesDirector · Senior Chairman
GiftCommon Stock 15,140 $0.00 $0.00
Disclosure

SEC source: 0001299505-25-000007 · ownership.xml · nonDerivative · entry 1

Chao James · CIK 0001299505 · Director · Senior Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,741

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:17 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001726418-25-000004 · ownership.xml · derivative · entry 4

Chao David Tsung-Hung · CIK 0001726418 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F4 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F4 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:17 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001726418-25-000004 · ownership.xml · nonDerivative · entry 1

Chao David Tsung-Hung · CIK 0001726418 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,912

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:18 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001457009-25-000004 · ownership.xml · derivative · entry 3

Graff Michael J · CIK 0001457009 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:18 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001457009-25-000004 · ownership.xml · nonDerivative · entry 1

Graff Michael J · CIK 0001457009 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,142

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:16 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001448219-25-000004 · ownership.xml · derivative · entry 3

Lubel Kimberly S · CIK 0001448219 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:16 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001448219-25-000004 · ownership.xml · nonDerivative · entry 1

Lubel Kimberly S · CIK 0001448219 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,653

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:15 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001447712-25-000007 · ownership.xml · derivative · entry 3

Sheets Jeffrey Wayne · CIK 0001447712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:15 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001447712-25-000007 · ownership.xml · nonDerivative · entry 1

Sheets Jeffrey Wayne · CIK 0001447712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,759

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:18 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001974884-25-000004 · ownership.xml · derivative · entry 4

Chao Catherine T. · CIK 0001974884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F4 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F4 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:18 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001974884-25-000004 · ownership.xml · nonDerivative · entry 1

Chao Catherine T. · CIK 0001974884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,580

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:17 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001307964-25-000004 · ownership.xml · derivative · entry 3

NORTHCUTT R BRUCE · CIK 0001307964 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:17 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001307964-25-000004 · ownership.xml · nonDerivative · entry 1

NORTHCUTT R BRUCE · CIK 0001307964 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,183

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:16 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001974878-25-000004 · ownership.xml · derivative · entry 3

Sabat Carolyn Chao · CIK 0001974878 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:16 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001974878-25-000004 · ownership.xml · nonDerivative · entry 1

Sabat Carolyn Chao · CIK 0001974878 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,580

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

Read SEC document
August 09, 2025 Filed Aug 11, 2025 14:16 UTC Exercise / conversionRestricted Stock Units · Derivative 1,128 $0.00 $0.00
Disclosure

SEC source: 0001215888-25-000005 · ownership.xml · derivative · entry 3

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,128 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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.

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August 09, 2025 Filed Aug 11, 2025 14:16 UTC Exercise / conversionCommon Stock 1,128 Not disclosed Not disclosed
Disclosure

SEC source: 0001215888-25-000005 · ownership.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,656

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: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

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August 08, 2025 Filed Aug 11, 2025 14:17 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001726418-25-000004 · ownership.xml · derivative · entry 3

Chao David Tsung-Hung · CIK 0001726418 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F3 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

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August 08, 2025 Filed Aug 11, 2025 14:18 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001457009-25-000004 · ownership.xml · derivative · entry 2

Graff Michael J · CIK 0001457009 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

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August 08, 2025 Filed Aug 11, 2025 14:16 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001448219-25-000004 · ownership.xml · derivative · entry 2

Lubel Kimberly S · CIK 0001448219 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

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August 08, 2025 Filed Aug 11, 2025 14:15 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001447712-25-000007 · ownership.xml · derivative · entry 2

Sheets Jeffrey Wayne · CIK 0001447712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

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August 08, 2025 Filed Aug 11, 2025 14:18 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001974884-25-000004 · ownership.xml · derivative · entry 3

Chao Catherine T. · CIK 0001974884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F3 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

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August 08, 2025 Filed Aug 11, 2025 14:17 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001307964-25-000004 · ownership.xml · derivative · entry 2

NORTHCUTT R BRUCE · CIK 0001307964 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

Read SEC document
August 08, 2025 Filed Aug 11, 2025 14:16 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001974878-25-000004 · ownership.xml · derivative · entry 2

Sabat Carolyn Chao · CIK 0001974878 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

Read SEC document
August 08, 2025 Filed Aug 11, 2025 14:16 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001215888-25-000005 · ownership.xml · derivative · entry 2

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

Read SEC document
August 08, 2025 Filed Aug 11, 2025 14:16 UTC GrantRestricted Stock Units · Derivative 2,168 $0.00 $0.00
Disclosure

SEC source: 0001231239-25-000005 · ownership.xml · derivative · entry 1

CREGG ROGER A · CIK 0001231239 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,168

Underlying: Common Stock · 2,168 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026.

F2 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026.

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May 27, 2025 Filed Jun 9, 2025 13:59 UTC
Buesinger Robert F.EVP, PEM Segment Head
SaleCommon Stock 83 $72.70 $6,034.10
Disclosure

SEC source: 0000950170-25-083572 · ownership.xml · nonDerivative · entry 2

Buesinger Robert F. · CIK 0001488587 · EVP, PEM Segment Head

10b5-1 filing: No plan indicated

Ownership: Indirect · by trust

Disclosed balance after: 0

F1 · ownership.nature: These shares are held in a trust for the benefit of the reporting person and his family. The reporting person serves as co-trustee.The reporting person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.

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April 22, 2025 Filed Jun 9, 2025 13:59 UTC
Buesinger Robert F.EVP, PEM Segment Head
PurchaseCommon Stock 83 $93.39 $7,751.37
Disclosure

SEC source: 0000950170-25-083572 · ownership.xml · nonDerivative · entry 1

Buesinger Robert F. · CIK 0001488587 · EVP, PEM Segment Head

10b5-1 filing: No plan indicated

Ownership: Indirect · by trust

Disclosed balance after: 83

F1 · ownership.nature: These shares are held in a trust for the benefit of the reporting person and his family. The reporting person serves as co-trustee.The reporting person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.

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April 11, 2025 Filed Apr 15, 2025 18:00 UTC GrantRestricted Stock Units · Derivative 8,551 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-054370 · ownership.xml · derivative · entry 1

Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,551

Underlying: Common Stock · 8,551 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.

F2 · derivative.exercise_date: All of the RSUs will vest on April 11, 2028.

F2 · derivative.expiration_date: All of the RSUs will vest on April 11, 2028.

Read SEC document
April 11, 2025 Filed Apr 15, 2025 18:00 UTC GrantRestricted Stock Units · Derivative 17,101 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-054371 · ownership.xml · derivative · entry 1

Buesinger Robert F. · CIK 0001488587 · EVP, PEM

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,101

Underlying: Common Stock · 17,101 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.

F2 · derivative.exercise_date: All of the RSUs will vest on December 31, 2026.

F2 · derivative.expiration_date: All of the RSUs will vest on December 31, 2026.

Read SEC document
March 05, 2025 Filed Mar 6, 2025 14:05 UTC Amendment Tax withholdingCommon Stock 235 $108.62 $25,525.70
Disclosure

SEC source: 0000950170-25-034210 · ownership.xml · nonDerivative · entry 2

Chao John Tsung-chen · CIK 0001746472 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,429

F1 · shares: The original Form 4 filed by the Reporting Person on February 20, 2025 is amended by this Form 4A to disclose that 235 shares of common stock were sold to satisfy tax obligations arising out of the vesting of the reporting persons Restricted Stock Units. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4A is in addition to, and does not replace, the disclosure contained in the original Form 4.

F2 · balance_after: The amount of common stock beneficially owned by the Reporting Person relfects adjustments for subsquent transactions reported on February 24, 2025 and reflects the total owned subsquent to the tax witholding obligation of 235 shares.

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March 05, 2025 Filed Mar 7, 2025 12:00 UTC Amendment Tax withholdingCommon Stock 391 $108.62 $42,470.42
Disclosure

SEC source: 0000950170-25-035137 · ownership.xml · nonDerivative · entry 2

Chao John Tsung-chen · CIK 0001746472 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,038

F1 · shares: The original Form 4 filed by the Reporting Person on February 24, 2025 is amended by this Form 4A to disclose that 391 shares of common stock were sold to cover tax withholding obligations arising out of the vesting of the Reporting Person's Performace Stock Units. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4A is in addition to, and does not replace, the disclosure contained in the original Form 4

F2 · balance_after: The amount of common stock beneficially owned by the Reporting Person reflects adjustments for subsquent transactions reported on Form4A filed March 6, 2025, reflects the total owned subsquent to the tax witholding obligation of 391 shares, and is the total owned as of today, March 7, 2025.

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