POST

Post Holdings, Inc.

Grain Mill ProductsNYSELarge accelerated filer

Total Trades

50

Buys

9

Sells

35

Largest Trade

N/A

Insiders

13

Institutional Funds

344

Inst. Value

$1M+

Activist Filings

23

Insider Trades

InsiderTitleTypeValueSharesPriceDate
CURL GREGORY LDirectorSELL$500K+7K$114.31Feb 10, 2026
HARPER BRADLY ASVPSELL$100K–$500K2K$96.69Dec 8, 2025
CATOGGIO NICOLASPRES & CEO, PCBSELL$1M+10K$100.21Nov 26, 2025
KEMPER DAVID WDirectorBUY$100K–$500K2K$97.93Nov 25, 2025
STIRITZ WILLIAM PDirectorBUY$1M+187K$109.11Jun 9, 2025
CATOGGIO NICOLASPRES & CEO, PCBSELL$100K–$500K2K$108.97Jun 9, 2025
CATOGGIO NICOLASPRES & CEO, PCBSELL$500K+5K$116.50Feb 26, 2025
VITALE ROBERT VPRESIDENT & CEOSELL$1M+63K$115.84Feb 26, 2025
VITALE ROBERT VPRESIDENT & CEOEXERCISE$1M+63K$54.06Feb 26, 2025
GRAY DIEDRE JEVP, GC & CAO, SECYSELL$1M+15K$115.80Feb 25, 2025
GRAY DIEDRE JEVP, GC & CAO, SECYEXERCISE$500K+15K$62.10Feb 25, 2025
CATOGGIO NICOLASPRES & CEO, PCBSELL$500K+6K$121.14Dec 3, 2024
Zadoks Jeff AEVP & COOSELL$1M+29K$119.96Dec 2, 2024
Zadoks Jeff AEVP & COOEXERCISE$1M+29K$62.10Dec 2, 2024
CURL GREGORY LDirectorSELL$100K–$500K1K$114.20Nov 25, 2024
CATOGGIO NICOLASPRES & CEO, PCBSELL$500K+7K$109.18Nov 19, 2024
CATOGGIO NICOLASPRES & CEO, PCBEXERCISEN/A29Nov 19, 2024
HARPER BRADLY ASVPSELL$100K–$500K1K$113.43Aug 19, 2024
CATOGGIO NICOLASPRES & CEO, PCBSELL$100K–$500K1K$105.30Jun 7, 2024
GROTE ROBERT EDirectorSELL$1M+17K$104.58Jun 6, 2024
CURL GREGORY LDirectorSELL$100K–$500K4K$106.06Jun 3, 2024
GRAY DIEDRE JEVP, GC & CAO, SECYSELL$500K+7K$104.51Feb 13, 2024
HARSHMAN ELLEN FDirectorSELL$15K–$50K400$106.02Feb 9, 2024
ERB THOMAS CDirectorBUY$100K–$500K1K$104.24Feb 8, 2024
BURWELL DOROTHY MDirectorSELL$50K–$100K700$84.22Dec 4, 2023
HARPER BRADLY ASVPSELL$100K–$500K3K$85.19Nov 30, 2023
CATOGGIO NICOLASPRES & CEO, PCBSELL$100K–$500K4K$86.11Nov 21, 2023
ERB THOMAS CDirectorBUY$100K–$500K5K$84.48Nov 21, 2023
HARSHMAN ELLEN FDirectorSELL$15K–$50K500$90.13Aug 28, 2023
ERB THOMAS CDirectorBUY$50K–$100K1K$86.76Jun 7, 2023
HARSHMAN ELLEN FDirectorSELL$15K–$50K400$85.60Jun 6, 2023
HARPER BRADLY ASVPSELL$100K–$500K2K$86.31May 25, 2023
ERB THOMAS CDirectorBUY$50K–$100K1K$87.00May 19, 2023
SKARIE DAVID PDirectorSELL$100K–$500K3K$89.74Mar 8, 2023
GRAY DIEDRE JEVP, GC & CAO, SECYSELL$500K+10K$94.39Dec 6, 2022
GRAY DIEDRE JEVP, GC & CAO, SECYEXERCISE$500K+10K$62.10Dec 6, 2022
HARPER BRADLY ASVPSELL$100K–$500K2K$94.26Nov 25, 2022
BURWELL DOROTHY MDirectorSELL$50K–$100K910$93.41Nov 23, 2022
HARSHMAN ELLEN FDirectorSELL$15K–$50K300$91.66Nov 22, 2022
GROTE ROBERT EDirectorEXERCISE$100K–$500K7K$25.56Nov 22, 2022
GROTE ROBERT EDirectorSELL$100K–$500K2K$92.33Nov 22, 2022
CURL GREGORY LDirectorSELL$100K–$500K4K$92.40Nov 22, 2022
CATOGGIO NICOLASPRES & CEO, PCBSELL$100K–$500K2K$91.58Nov 22, 2022
HARSHMAN ELLEN FDirectorSELL$15K–$50K250$81.60May 26, 2022
CURL GREGORY LDirectorSELL$100K–$500K4K$82.11May 19, 2022
GROTE ROBERT EDirectorSELL$100K–$500K5K$78.91May 16, 2022
ERB THOMAS CDirectorBUY$1M+12K$81.26May 10, 2022
ERB THOMAS CDirectorBUY$50K–$100K1K$79.20Mar 2, 2022
HARSHMAN ELLEN FDirectorSELL$15K–$50K200$107.86Feb 23, 2022
ERB THOMAS CDirectorBUY$100K–$500K2K$105.38Feb 8, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

William P. Stiritz

SC 13D/A · Mar 5, 2026

10.3%

4.9M shares

William P. Stiritz

SC 13D/A · Oct 15, 2025

9.3%

4.9M shares

Dimensional Fund Advisors LP

SC 13G · Oct 9, 2025

5.2%

2.8M shares

The Vanguard Group

SC 13G/A · Sep 8, 2025

10.3%

5.6M shares

Route One Investment Company, L.P.

SC 13G/A · Aug 13, 2025

6.1%

3.4M shares

Dimensional Fund Advisors LP

SC 13G/A · Jul 15, 2025

4.8%

2.7M shares

The Vanguard Group

SC 13G/A · Apr 30, 2025

9.6%

5.4M shares

William P. Stiritz

SC 13D/A · Feb 14, 2025

8.3%

4.7M shares

Route One Investment Company, L.P.

SC 13G/A · Nov 13, 2024

7.5%

4.4M shares

BlackRock, Inc.

SC 13G/A · Nov 12, 2024

7.3%

4.3M shares

5.4%

3.1M shares

BlackRock, Inc.

SC 13G/A · Oct 22, 2024

7.3%

4.3M shares

Route One Investment Company, L.P.

SC 13G/A · Feb 14, 2024

8.5%

5.2M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

8.2%

5.0M shares

Clarkston Capital Partners, LLC

SC 13G · Feb 12, 2024

5.9%

3.6M shares

BlackRock, Inc.

SC 13G/A · Jan 25, 2024

8.9%

5.4M shares

8.4%

5.4M shares

BlackRock, Inc.

SC 13G · Feb 13, 2023

8.4%

5.3M shares

Route One Investment Company, L.P.

SC 13G/A · Feb 13, 2023

8.6%

5.1M shares

BlackRock, Inc.

SC 13G · Jan 25, 2023

8.4%

4.9M shares

JPMORGAN CHASE & CO. 13-2624428

SC 13G/A · Jan 5, 2023

4.7%

2.8M shares

Route One Investment Company, L.P.

SC 13G/A · Feb 11, 2022

11.2%

7.0M shares

JPMORGAN CHASE & CO. 13-2624428

SC 13G/A · Jan 14, 2022

5.5%

3.5M shares

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