Michelle Marie Atkinson

CIK: 0002113424

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)9 (100.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

POST

Post Holdings, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (9 total)

POST
Post Holdings, Inc.
Oct 30, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
134 shares at avg. $83.22-
POST
Post Holdings, Inc.
Sep 30, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
153 shares at avg. $72.85-
POST
Post Holdings, Inc.
Aug 31, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
133 shares at avg. $83.36-
POST
Post Holdings, Inc.
Jul 31, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
122 shares at avg. $91.41-
POST
Post Holdings, Inc.
Jun 30, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
126 shares at avg. $88.26-
POST
Post Holdings, Inc.
May 29, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
121 shares at avg. $91.84-
POST
Post Holdings, Inc.
Apr 30, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
106 shares at avg. $104.75-
POST
Post Holdings, Inc.
Mar 31, 2026
Award(A)
Post Holdings, Inc. Stock Equivalents
Direct
62 shares at avg. $98.86-
POST
Post Holdings, Inc.
Mar 16, 2026
Award(A)
Direct
1.7K shares-

		Type	Shares	Price		Ownership
Oct 30, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	134	$83.22	-	Direct
Sep 30, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	153	$72.85	-	Direct
Aug 31, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	133	$83.36	-	Direct
Jul 31, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	122	$91.41	-	Direct
Jun 30, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	126	$88.26	-	Direct
May 29, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	121	$91.84	-	Direct
Apr 30, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	106	$104.75	-	Direct
Mar 31, 2026	POST Post Holdings, Inc.	Award(A) Post Holdings, Inc. Stock Equivalents	62	$98.86	-	Direct
Mar 16, 2026	POST Post Holdings, Inc.	Award(A)	1,700	-	$0	Direct

1-9 of 9 transactions

About Atkinson Michelle Marie

Atkinson Michelle Marie (SEC CIK 0002113424) files insider reports with the SEC as Director of Post Holdings, Inc. (POST).

Signal8 holds 10 ownership filings by Atkinson Michelle Marie (1 Form 3, 9 Form 4), filed between Mar 16, 2026 and Nov 3, 2026. Those filings report 9 transactions, from Mar 16, 2026 to Oct 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Atkinson Michelle Marie's filings is in ST. LOUIS, MO.

Recent filings by Atkinson Michelle Marie

Oct 30, 2026: Grant or award of POST derivative securities (Form 4, code A).
Sep 30, 2026: Grant or award of POST derivative securities (Form 4, code A).
Aug 31, 2026: Grant or award of POST derivative securities (Form 4, code A).
Jul 31, 2026: Grant or award of POST derivative securities (Form 4, code A).
Jun 30, 2026: Grant or award of POST derivative securities (Form 4, code A).