person · Reporting owner
Atkinson Michelle Marie
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Post Holdings, Inc.POST · Entity 692 | Director | September 30, 2026 | October 03, 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.
Post Holdings, Inc.
Report date September 30, 2026 · Filed October 03, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Post Holdings, Inc. Stock EquivalentsSEC Table II · derivative / convertible security | Direct | 822.442 |
Reported balance
After 2026-09-30 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-09-30 · Grant · Acquired 152.517 · Balance 822.442 F1: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2: The stock equivalents have no fixed exercisable or expiration dates. |
Filing footnotes · ownership attribution and instrument terms
F1: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors.
F2: The stock equivalents have no fixed exercisable or expiration dates.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 30, 2026 Filed Oct 3, 2026 00:40 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 152.517 | $72.85 | $11,110.86 |
DisclosureSEC source: 0002113424-26-000017 · wk-form4_1790973602.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 822.442 Underlying: Common Stock · 152.517 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| August 31, 2026 Filed Sep 2, 2026 20:35 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 133.287 | $83.36 | $11,110.80 |
DisclosureSEC source: 0002113424-26-000015 · wk-form4_1788381346.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 669.672 Underlying: Common Stock · 133.287 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| July 31, 2026 Filed Aug 4, 2026 20:39 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 121.549 | $91.41 | $11,110.79 |
DisclosureSEC source: 0002113424-26-000013 · wk-form4_1785875973.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 536.013 Underlying: Common Stock · 121.549 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 20:33 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 125.887 | $88.26 | $11,110.79 |
DisclosureSEC source: 0002113424-26-000012 · wk-form4_1783024382.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 414.595 Underlying: Common Stock · 125.887 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| May 29, 2026 Filed Jun 2, 2026 21:03 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 120.98 | $91.84 | $11,110.80 |
DisclosureSEC source: 0002113424-26-000010 · wk-form4_1780434232.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 288.736 Underlying: Common Stock · 120.98 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| April 30, 2026 Filed May 4, 2026 21:03 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 106.07 | $104.75 | $11,110.83 |
DisclosureSEC source: 0002113424-26-000008 · wk-form4_1777928620.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 167.671 Underlying: Common Stock · 106.07 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 20:34 UTC | Post Holdings, Inc. POST · Entity 692 | GrantPost Holdings, Inc. Stock Equivalents · Derivative | 61.633 | $98.86 | $6,093.04 |
DisclosureSEC source: 0002113424-26-000006 · wk-form4_1775162049.xml · derivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61.633 Underlying: Common Stock · 61.633 shares Expires not disclosed F1 · derivative.exercise_price: Reporting Person's retainers earned as a Director of Issuer are deferred into Post Holdings, Inc. stock equivalents under the Issuer's Deferred Compensation Plan for Non-Management Directors. Reporting Person is credited with stock equivalents as soon as administratively practicable following the month in which such retainer is earned. The value of these stock equivalents is distributed (on a one-for-one basis) in the form of cash upon separation from the Board of Directors. F2 · derivative.exercise_date: The stock equivalents have no fixed exercisable or expiration dates. F2 · derivative.expiration_date: The stock equivalents have no fixed exercisable or expiration dates. Read SEC document |
| March 16, 2026 Filed Mar 18, 2026 21:40 UTC | Post Holdings, Inc. POST · Entity 692 | GrantCommon Stock | 1,700 | $0.00 | $0.00 |
DisclosureSEC source: 0002113424-26-000004 · wk-form4_1773870039.xml · nonDerivative · entry 1 Atkinson Michelle Marie · CIK 0002113424 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,700 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 Holdings, Inc. Amended and Restated 2021 Long-Term Incentive Plan 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. 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.