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Westphal Jeffrey

Disclosed activity across 1 company

Tapewire entity
65912
SEC CIK
0001818851

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Vertex, Inc.VERX · Entity 4427See RemarksFebruary 13, 2026February 18, 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.

Vertex, Inc.

Report date February 13, 2026 · Filed February 18, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeIndirectBy The 2009 Jeffrey R. Westphal Generation Skipping Trust247,740 Reported balance After 2026-02-13 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2026-02-13 · Purchase · Acquired 247,740 · Balance 247,740

F1: The shares of Class A Common Stock were purchased in multiple transactions at prices ranging from $12.73 to $13.44 per share on February 13, 2026. The $13.0825 purchase price reported above is the weighted average purchase price. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

Class A Common StockSEC Table I · non-derivativeIndirectBy The 2009 Jeffrey R. Westphal Generation Skipping Trust397,740 Reported balance After 2026-02-17 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2026-02-17 · Purchase · Acquired 150,000 · Balance 397,740

F2: The shares of Class A Common Stock were purchased in multiple transactions at prices ranging from $12.35 to $13.13 per share on February 17, 2026. The $12.5349 purchase price reported above is the weighted average purchase price. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

Class A Common StockSEC Table I · non-derivativeDirect7,895 Reported balance Holding disclosure · report date 2026-02-13 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 7,895

Class B Common StockSEC Table II · derivative / convertible securityIndirectBy The 2009 Jeffrey R. Westphal Generation Skipping Trust1,125,927 Reported balance Holding disclosure · report date 2026-02-13 · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · Balance 1,125,927

F3: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Class B Common StockSEC Table II · derivative / convertible securityDirect388,000 Reported balance Holding disclosure · report date 2026-02-13 · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · Balance 388,000

F3: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Filing footnotes · ownership attribution and instrument terms

F1: The shares of Class A Common Stock were purchased in multiple transactions at prices ranging from $12.73 to $13.44 per share on February 13, 2026. The $13.0825 purchase price reported above is the weighted average purchase price. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

F2: The shares of Class A Common Stock were purchased in multiple transactions at prices ranging from $12.35 to $13.13 per share on February 17, 2026. The $12.5349 purchase price reported above is the weighted average purchase price. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

F3: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

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
February 17, 2026 Filed Feb 18, 2026 17:22 UTC Vertex, Inc. VERX · Entity 4427 PurchaseClass A Common Stock 150,000 $12.53 $1,880,235.00
Disclosure

SEC source: 0001104659-26-017154 · tm266765-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 397,740

F2 · price: The shares of Class A Common Stock were purchased in multiple transactions at prices ranging from $12.35 to $13.13 per share on February 17, 2026. The $12.5349 purchase price reported above is the weighted average purchase price. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

Read SEC document
February 13, 2026 Filed Feb 18, 2026 17:22 UTC Vertex, Inc. VERX · Entity 4427 PurchaseClass A Common Stock 247,740 $13.08 $3,241,058.55
Disclosure

SEC source: 0001104659-26-017154 · tm266765-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 247,740

F1 · price: The shares of Class A Common Stock were purchased in multiple transactions at prices ranging from $12.73 to $13.44 per share on February 13, 2026. The $13.0825 purchase price reported above is the weighted average purchase price. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 332,244 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · derivative · entry 11

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Rainer J. Westphal 2007 Separate Non-Exempt Trust FBO Jeffrey Westphal

Disclosed balance after: 0

Underlying: Class A Common Stock · 332,244 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: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 1,153,756 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · derivative · entry 10

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Rainer J. Westphal 2007 Separate Exempt Trust FBO Jeffrey Westphal

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,153,756 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: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 1,514,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · derivative · entry 8

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 1,125,927

Underlying: Class A Common Stock · 1,514,000 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.

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (i) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (ii) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 332,244 $38.45 $12,774,781.80
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · nonDerivative · entry 6

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Rainer J. Westphal 2007 Separate Non-Exempt Trust FBO Jeffrey Westphal

Disclosed balance after: 0

F2 · price: The reported securities were sold in a block sale at a per share price of $38.45.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 332,244 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · nonDerivative · entry 5

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Rainer J. Westphal 2007 Separate Non-Exempt Trust FBO Jeffrey Westphal

Disclosed balance after: 332,244

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
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,153,756 $38.45 $44,361,918.20
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · nonDerivative · entry 4

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Rainer J. Westphal 2007 Separate Exempt Trust FBO Jeffrey Westphal

Disclosed balance after: 0

F2 · price: The reported securities were sold in a block sale at a per share price of $38.45.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 1,153,756 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · nonDerivative · entry 3

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Rainer J. Westphal 2007 Separate Exempt Trust FBO Jeffrey Westphal

Disclosed balance after: 1,153,756

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
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,514,000 $38.45 $58,213,300.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 0

F2 · price: The reported securities were sold in a block sale at a per share price of $38.45.

Read SEC document
June 09, 2025 Filed Jun 11, 2025 15:21 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 1,514,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-058504 · tm2517712-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 1,514,000

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 31, 2024 Filed Jan 3, 2025 20:36 UTC Vertex, Inc. VERX · Entity 4427 GiftClass A Common Stock 450,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-000963 · tm251951-2_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,895

Read SEC document
December 20, 2024 Filed Dec 26, 2024 10:48 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 450,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-131596 · tm2432012-1_4seq1.xml · derivative · entry 2

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 2,189,927

Underlying: Class A Common Stock · 450,000 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.

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · shares: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
December 20, 2024 Filed Dec 26, 2024 10:48 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 450,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-131596 · tm2432012-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 457,895

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 20, 2024 Filed Jan 3, 2025 20:35 UTC Amendment Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 450,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-000962 · tm251951-1_4aseq1.xml · derivative · entry 3

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 388,000

Underlying: Class A Common Stock · 388,000 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_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · shares: On December 24, 2024, the Reporting Person converted 450,000 shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A common stock. These shares were inadvertently reported on the Form 4 filed by the Reporting Person on December 26, 2024 as transferred from the The 2009 Jeffrey R. Westphal Generation Skipping Trust ("GST") to the Reporting Person's individual account. The GST's ownership and the Reporting Person's direct ownership have been adjusted to correct this error.

F2 · shares: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F2 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F2 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.underlying_shares: On December 24, 2024, the Reporting Person converted 450,000 shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A common stock. These shares were inadvertently reported on the Form 4 filed by the Reporting Person on December 26, 2024 as transferred from the The 2009 Jeffrey R. Westphal Generation Skipping Trust ("GST") to the Reporting Person's individual account. The GST's ownership and the Reporting Person's direct ownership have been adjusted to correct this error.

F1 · balance_after: On December 24, 2024, the Reporting Person converted 450,000 shares of the Issuer's Class B Common Stock into shares of the Issuer's Class A common stock. These shares were inadvertently reported on the Form 4 filed by the Reporting Person on December 26, 2024 as transferred from the The 2009 Jeffrey R. Westphal Generation Skipping Trust ("GST") to the Reporting Person's individual account. The GST's ownership and the Reporting Person's direct ownership have been adjusted to correct this error.

Read SEC document
December 20, 2024 Filed Jan 3, 2025 20:35 UTC Amendment Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 450,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-000962 · tm251951-1_4aseq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 457,895

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 12, 2024 Filed Dec 16, 2024 20:15 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 575,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-129064 · tm2431262-1_4seq1.xml · derivative · entry 4

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 2,639,927

Underlying: Class A Common Stock · 575,000 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.

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · shares: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
December 12, 2024 Filed Dec 16, 2024 20:15 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 575,000 $53.01 $30,480,750.00
Disclosure

SEC source: 0001104659-24-129064 · tm2431262-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 0

Read SEC document
December 12, 2024 Filed Dec 16, 2024 20:15 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 575,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-129064 · tm2431262-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 575,000

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 11, 2024 Filed Nov 13, 2024 21:43 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 2,485,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-117963 · tm2428447-1_4seq1.xml · derivative · entry 4

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 3,214,927

Underlying: Class A Common Stock · 2,485,000 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.

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · shares: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

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November 11, 2024 Filed Nov 13, 2024 21:43 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 2,485,000 $48.90 $121,516,500.00
Disclosure

SEC source: 0001104659-24-117963 · tm2428447-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 0

Read SEC document
November 11, 2024 Filed Nov 13, 2024 21:43 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 2,485,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-117963 · tm2428447-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 2,485,000

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
October 03, 2024 Filed Oct 7, 2024 18:33 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 170,359 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-106765 · tm2425754-1_4seq1.xml · derivative · entry 4

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 6,578,927.237

Underlying: Class A Common Stock · 170,359 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_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · shares: The conversion reflected here was finalized on October 4, 2024.

F2 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F2 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

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October 03, 2024 Filed Oct 7, 2024 18:33 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,225,000 $39.42 $48,289,500.00
Disclosure

SEC source: 0001104659-24-106765 · tm2425754-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 0

Read SEC document
October 03, 2024 Filed Oct 7, 2024 18:33 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 170,359 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-106765 · tm2425754-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 1,225,000

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: The conversion reflected here was finalized on October 4, 2024.

Read SEC document
July 23, 2024 Filed Jul 24, 2024 18:24 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,500,000 $37.81 $56,715,000.00
Disclosure

SEC source: 0001104659-24-082412 · tm2420125-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 1,054,641

Read SEC document
June 05, 2024 Filed Jun 7, 2024 18:30 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,500,000 $32.93 $49,395,000.00
Disclosure

SEC source: 0001104659-24-069770 · tm2416657-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 2,554,641

Read SEC document
April 30, 2024 Filed May 2, 2024 18:00 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 2,500,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-056542 · tm2413379-1_4seq1.xml · derivative · entry 3

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 6,749,286.237

Underlying: Class A Common Stock · 2,500,000 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.

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
April 30, 2024 Filed May 2, 2024 18:00 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 2,500,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-056542 · tm2413379-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 4,054,641

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
April 05, 2024 Filed Apr 9, 2024 19:33 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 791,133 $30.05 $23,773,546.65
Disclosure

SEC source: 0001104659-24-045328 · tm2411393-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 1,554,641

Read SEC document
March 04, 2024 Filed Mar 5, 2024 17:37 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 2,291,537 $31.55 $72,297,992.35
Disclosure

SEC source: 0001104659-24-031101 · tm247957-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 2,345,774

Read SEC document
March 01, 2024 Filed Mar 5, 2024 17:37 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 124,770 $33.74 $4,210,238.88
Disclosure

SEC source: 0001104659-24-031101 · tm247957-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffrey · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 4,637,311

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.61 to $34.36.

Read SEC document
December 06, 2023 Filed Dec 11, 2023 19:39 UTC Vertex, Inc. VERX · Entity 4427 OtherClass B Common Stock · Derivative 789,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-23-125085 · tm2331951-8_4seq1.xml · derivative · entry 3

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 838,000

Underlying: Class A Common Stock · 789,000 shares

Expires not disclosed

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

Read SEC document
November 14, 2023 Filed Nov 16, 2023 18:00 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,076,727 $26.06 $28,059,505.62
Disclosure

SEC source: 0001104659-23-119192 · tm2329829-6_4seq1.xml · nonDerivative · entry 2

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · ownership.nature: Represents shares held by The 2009 Jeffrey R. Westphal Generation-Skipping Sub-Trust for Jenifer R. Westphal, of which the Reporting Person's spouse is trustee.

Read SEC document
November 14, 2023 Filed Nov 16, 2023 18:00 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 822,298 $26.06 $21,429,085.88
Disclosure

SEC source: 0001104659-23-119192 · tm2329829-6_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 4,762,081

Read SEC document
October 02, 2023 Filed Oct 4, 2023 16:58 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,103,475 $22.32 $24,629,562.00
Disclosure

SEC source: 0001104659-23-106864 · tm2327542-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,076,727

F1 · ownership.nature: Represents shares held by The 2009 Jeffrey R. Westphal Generation-Skipping Sub-Trust for Jenifer R. Westphal, of which the Reporting Person's spouse is trustee.

Read SEC document
August 02, 2023 Filed Aug 3, 2023 18:01 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass B Common Stock · Derivative 879,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-23-087392 · tm2322802-1_4seq1.xml · derivative · entry 4

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 879,000 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_price: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F2 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F2 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into one share of the Issuer's Class A Common Stock and has no expiration date. The Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock on a one-to-one basis either (1) upon any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (2) if the voting power of the Issuer's outstanding Class B Common Stock represents less than 10% of the combined voting power of all of the Issuer's outstanding common stock.

F1 · ownership.nature: Represents shares held by The 2009 Jeffrey R. Westphal Generation-Skipping Sub-Trust for Jenifer R. Westphal, of which the Reporting Person's spouse is trustee.

Read SEC document
August 02, 2023 Filed Aug 3, 2023 18:01 UTC Vertex, Inc. VERX · Entity 4427 ConversionClass A Common Stock 879,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-23-087392 · tm2322802-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,180,202

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 · ownership.nature: Represents shares held by The 2009 Jeffrey R. Westphal Generation-Skipping Sub-Trust for Jenifer R. Westphal, of which the Reporting Person's spouse is trustee.

Read SEC document
July 14, 2023 Filed Jul 14, 2023 19:05 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 89,236 $18.66 $1,665,500.70
Disclosure

SEC source: 0001104659-23-081322 · tm2321410-1_4seq1.xml · nonDerivative · entry 3

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 5,584,181

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.60 to $19.00.

Read SEC document
July 13, 2023 Filed Jul 14, 2023 19:05 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 155,146 $18.91 $2,933,190.28
Disclosure

SEC source: 0001104659-23-081322 · tm2321410-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 5,673,417

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.625 to $19.12.

Read SEC document
July 12, 2023 Filed Jul 14, 2023 19:05 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 80,816 $18.90 $1,527,503.22
Disclosure

SEC source: 0001104659-23-081322 · tm2321410-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 5,828,563

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.80 to $19.05.

Read SEC document
July 12, 2023 Filed Sep 19, 2023 20:30 UTC Amendment Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 80,618 $18.90 $1,523,760.82
Disclosure

SEC source: 0001104659-23-102045 · tm2326414-1_4aseq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 5,584,379

F1 · shares: On July 14, 2023, the Reporting Person filed a Form 4 which inadvertently stated that the amount of securities sold on July 12, 2023 was 80,816 shares of Class A Common Stock, rather than 80,618 shares of Class A Common Stock. This amendment reports the correct amount of securities sold on July 12, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.80 to $19.05.

F3 · balance_after: The total amount of shares of Class A Common Stock reported in column 5 reflects the Reporting Person's beneficial ownership as of September 19, 2023.

Read SEC document
June 30, 2023 Filed Jul 5, 2023 19:54 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 8,798 $19.92 $175,229.77
Disclosure

SEC source: 0001104659-23-078336 · tm2320618-1_4seq1.xml · nonDerivative · entry 2

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,301,202

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.90 to $19.94.

F2 · ownership.nature: Represents shares held by The 2009 Jeffrey R. Westphal Generation-Skipping Sub-Trust for Jenifer R. Westphal, of which the Reporting Person's spouse is trustee.

Read SEC document
June 30, 2023 Filed Jul 5, 2023 19:54 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 600,000 $19.07 $11,442,000.00
Disclosure

SEC source: 0001104659-23-078336 · tm2320618-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 5,909,379

Read SEC document
June 28, 2023 Filed Jun 30, 2023 18:00 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 800,000 $18.26 $14,608,000.00
Disclosure

SEC source: 0001104659-23-077252 · tm2320360-1_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 6,509,379

Read SEC document
March 16, 2023 Filed Mar 16, 2023 19:06 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 1,215,164 $17.62 $21,411,189.68
Disclosure

SEC source: 0001104659-23-033430 · tm238349-5_4seq1.xml · nonDerivative · entry 4

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 7,309,379

Read SEC document
March 16, 2023 Filed Mar 16, 2023 19:06 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 160,000 $18.74 $2,997,600.00
Disclosure

SEC source: 0001104659-23-033430 · tm238349-5_4seq1.xml · nonDerivative · entry 3

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 8,524,543

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.50 to $19.01.

Read SEC document
March 15, 2023 Filed Mar 16, 2023 19:06 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 110,325 $18.51 $2,041,674.45
Disclosure

SEC source: 0001104659-23-033430 · tm238349-5_4seq1.xml · nonDerivative · entry 2

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 8,684,543

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.50 to $18.575.

Read SEC document
March 14, 2023 Filed Mar 16, 2023 19:06 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 23,884 $18.67 $445,866.51
Disclosure

SEC source: 0001104659-23-033430 · tm238349-5_4seq1.xml · nonDerivative · entry 1

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 8,794,868

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.50 to $19.01.

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March 09, 2023 Filed Mar 10, 2023 20:28 UTC Vertex, Inc. VERX · Entity 4427 SaleClass A Common Stock 35,084 $18.85 $661,301.82
Disclosure

SEC source: 0001104659-23-031368 · tm238349-2_4seq1.xml · nonDerivative · entry 2

Westphal Jeffery · CIK 0001818851 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By The 2009 Jeffrey R. Westphal Generation Skipping Trust

Disclosed balance after: 8,818,752

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.42 to $19.24.

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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.