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WESTPHAL MARK W

Disclosed activity across 1 company

Tapewire entity
72804
SEC CIK
0001730096

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Post Holdings, Inc.POST · Entity 692PRES., FOODSERVICENovember 18, 2025November 20, 2025

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.

Post Holdings, Inc.

Report date November 18, 2025 · Filed November 20, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect197,756 Ending reported balance After 2025-11-18 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2025-11-18 · Grant · Acquired 16,682 · Balance 194,513

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

Row 2 · 2025-11-18 · Grant · Acquired 3,243 · Balance 197,756

F2: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

Common StockSEC Table I · non-derivativeIndirectBy 401(k) Plan17,174 Reported balance Holding disclosure · report date 2025-11-18 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 17,174

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Post Holdings, Inc. ("Post") common stock. The RSUs were granted under the Post Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan (the "A&R 2021 LTIP") in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years, subject to the terms of the award agreement.

F2: Each RSU represents a contingent right to receive one share of Post common stock. The RSUs were granted under the A&R 2021 LTIP in a transaction exempt under Rule 16b-3 and vest in full on the first anniversary of the date of grant, subject to the terms of the award agreement.

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
November 17, 2020 Filed Nov 19, 2020 22:22 UTC Post Holdings, Inc. POST · Entity 692 GrantCommon Stock 13,043 $0.00 $0.00
Disclosure

SEC source: 0001530950-20-000320 · wf-form4_160582451355129.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,870

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holding, Inc. 2019 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years.

Read SEC document
November 13, 2020 Filed Nov 17, 2020 21:27 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 1,101 $102.64 $113,006.64
Disclosure

SEC source: 0001530950-20-000303 · wf-form4_160564840645191.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,827

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 3,596 RSUs in accordance with Rule 16b-3.

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November 13, 2020 Filed Nov 17, 2020 21:27 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 826 $102.64 $84,780.64
Disclosure

SEC source: 0001530950-20-000303 · wf-form4_160564840645191.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,928

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 2,699 RSUs in accordance with Rule 16b-3.

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August 21, 2020 Filed Aug 25, 2020 20:18 UTC Post Holdings, Inc. POST · Entity 692 PurchaseCommon Stock 2,000 $84.87 $169,740.00
Disclosure

SEC source: 0001530950-20-000235 · wf-form4_159838666766227.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,754

Read SEC document
December 01, 2019 Filed Dec 3, 2019 22:21 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 489 $105.60 $51,638.40
Disclosure

SEC source: 0001530950-19-000283 · wf-form4_157541168473986.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,754

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,595 RSUs in accordance with Rule 16b-3.

Read SEC document
November 16, 2019 Filed Nov 19, 2019 22:20 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 422 $106.36 $44,883.92
Disclosure

SEC source: 0001530950-19-000254 · wf-form4_157420202250802.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,243

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,378 RSUs in accordance with Rule 16b-3.

Read SEC document
November 13, 2019 Filed Nov 15, 2019 22:01 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 826 $106.51 $87,977.26
Disclosure

SEC source: 0001530950-19-000249 · wf-form4_157385524813377.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,665

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 2,699 RSUs in accordance with Rule 16b-3.

Read SEC document
November 13, 2019 Filed Nov 15, 2019 22:01 UTC Post Holdings, Inc. POST · Entity 692 GrantCommon Stock 10,788 $0.00 $0.00
Disclosure

SEC source: 0001530950-19-000249 · wf-form4_157385524813377.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., FOODSERVICE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,491

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holding, Inc. 2019 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3 and vest in equal annual increments over three years.

Read SEC document
August 29, 2019 Filed Aug 30, 2019 21:38 UTC Post Holdings, Inc. POST · Entity 692 PurchaseCommon Stock 2,000 $98.13 $196,256.00
Disclosure

SEC source: 0001530950-19-000180 · wf-form4_156720106594819.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., MICHAEL FOODS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,703

F1 · price: The reported price in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $97.98 to $98.15 per share. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

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December 01, 2018 Filed Dec 4, 2018 22:19 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 489 $96.75 $47,310.75
Disclosure

SEC source: 0001530950-18-000277 · wf-form4_154396195097439.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., MICHAEL FOODS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,703

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,595 RSUs in accordance with Rule 16b-3.

Read SEC document
November 17, 2018 Filed Nov 20, 2018 22:04 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 272 $96.05 $26,125.60
Disclosure

SEC source: 0001530950-18-000255 · wf-form4_154275147562582.xml · nonDerivative · entry 2

WESTPHAL MARK W · CIK 0001730096 · PRES., MICHAEL FOODS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,192

F2 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 887 RSUs in accordance with Rule 16b-3.

Read SEC document
November 16, 2018 Filed Nov 20, 2018 22:04 UTC Post Holdings, Inc. POST · Entity 692 Tax withholdingCommon Stock 422 $96.05 $40,533.10
Disclosure

SEC source: 0001530950-18-000255 · wf-form4_154275147562582.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., MICHAEL FOODS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,464

F1 · shares: Surrender of shares in payment of tax withholding due as a result of the vesting of 1,378 RSUs in accordance with Rule 16b-3.

Read SEC document
November 13, 2018 Filed Nov 15, 2018 22:08 UTC Post Holdings, Inc. POST · Entity 692 GrantEmployee Stock Options (right to buy) · Derivative 23,136 $0.00 Strike: $92.08 $0.00
Disclosure

SEC source: 0001530950-18-000234 · wf-form4_154231967887693.xml · derivative · entry 3

WESTPHAL MARK W · CIK 0001730096 · PRES., MICHAEL FOODS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,136

Underlying: Common Stock · 23,136 shares

Expires 2028-11-13

F2 · derivative.exercise_date: The option to purchase 23,136 shares of common stock was awarded under the Post Holdings, Inc. 2016 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3 and vest in equal annual installments over three years.

Read SEC document
November 13, 2018 Filed Nov 15, 2018 22:08 UTC Post Holdings, Inc. POST · Entity 692 GrantCommon Stock 8,098 $0.00 $0.00
Disclosure

SEC source: 0001530950-18-000234 · wf-form4_154231967887693.xml · nonDerivative · entry 1

WESTPHAL MARK W · CIK 0001730096 · PRES., MICHAEL FOODS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,886

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of Post Holdings, Inc. common stock. The restricted stock units were granted under the Post Holding, Inc. 2016 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3 and vest in equal annual installments over three years.

Read SEC document

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