POST at a glance
Post Holdings Inc (POST, SEC CIK 1530950) filed its latest 10-K annual report on November 21, 2025, a 10-Q quarterly report on August 6, 2026, an 8-K current report on August 7, 2026 and Form 4 insider filings as recently as October 2, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended September 30, 2025 (FY2025), Post Holdings Inc (POST) reported revenue of $8.2 billion (up 3.0% from FY2024) and net income of $335.7 million. Diluted EPS was $5.51.
- As of June 30, 2026, 34 institutional investment managers tracked by SignalX reported holding Post Holdings Inc (POST) shares worth $1.9 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by STIRITZ WILLIAM P on September 2, 2026 of 277,707 shares at $84.23 per share.
- In the last 90 days, POST insiders reported 0 open-market purchases ($0) and 4 open-market sales ($32.3M) on Form 4, a net sale of $32.3M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $8.2B
- +3.0% vs prior year
- Insiders · 90 days
- 0 buys · 4 sells
- Net −$32.3M
- 13F holders
- 34 funds
- $1.9B · −1 vs prior quarter
- Latest 10-Q
- Aug 6, 2026
- Quarterly report
SignalX for POST
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- Fund moves. Which tracked funds opened, added or cut POST, by share count.
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Atkinson Michelle Marie | A | Sep 30, 2026 | 152.517 | $72.85 |
| SKARIE DAVID P | A | Sep 30, 2026 | 183.02 | $72.85 |
| Zadoks Jeff A | A | Sep 30, 2026 | 152.517 | $72.85 |
| JOHNSON JENNIFER KUPERMAN | A | Sep 30, 2026 | 152.517 | $72.85 |
| ERB THOMAS C | A | Sep 30, 2026 | 152.517 | $72.85 |
| BURWELL DOROTHY M | A | Sep 30, 2026 | 152.517 | $72.85 |
| KEMPER DAVID W | A | Sep 30, 2026 | 236.401 | $72.85 |
| CURL GREGORY L | A | Sep 30, 2026 | 152.517 | $72.85 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $7.9B | $8.2B |
| Gross Profit | $1.9B | $2.3B | $2.3B |
| Operating Income | - | $793.5M | $799.3M |
| Net Income | $301.3M | $366.7M | $335.7M |
| Gross Margin | - | 29.1% | 28.7% |
| Op. Margin | - | 10.0% | 9.8% |
| Net Margin | - | 4.6% | 4.1% |
| Balance Sheet | |||
| Total Assets | $11.6B | $12.9B | $13.5B |
| Equity | - | $4.1B | $3.8B |
| ROE | - | 9.0% | 8.9% |
| Per Share | |||
| EPS | $4.82 | $5.64 | $5.51 |
| Cash Flow | |||
| Operating CF | - | $931.7M | $998.3M |
Source: XBRL data in Post Holdings Inc (POST)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate POST share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 34 | $1.93B |
| Q1 2026 | 35 | $2.20B |
| Q4 2025 | 32 | $2.28B |
| Q3 2025 | 33 | $2.71B |
| Q2 2025 | 33 | $2.46B |
| Q1 2025 | 31 | $2.13B |
| Q4 2024 | 26 | $1.71B |
| Q3 2024 | 23 | $1.04B |
- Citadel Advisors LLC+793.9K (+363%)
- Citigroup+261.7K (+1490%)
- Morgan Stanley+216.4K (+27%)
- Goldman Sachs Group+142.6K (+92%)
- Franklin Resources+121.5K (+5420%)
- Two Sigma Investments−752.4K (-54%)
- FMR LLC (Fidelity)−314.6K (-38%)
- Invesco Ltd−272.4K (-49%)
- Vanguard Portfolio Management LLC−255.8K (-11%)
- JPMorgan Chase & Co−212.8K (-8%)
- Mangrove Partners−2.8K
Source: 13F-HR filings on SEC EDGAR (aggregated from 247 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
POST filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
8-K current reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
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POST SEC filings: frequently asked questions
Are POST insiders buying or selling?
In the last 90 days, Post Holdings Inc (POST) officers, directors and 10% owners reported no open-market purchases and 4 open-market sales worth $32.3 million by 1 insider on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold POST stock?
As of June 30, 2026, the largest Post Holdings Inc (POST) holders among the 13F filers tracked by SignalX were BlackRock ($347.2 million), Dimensional Fund Advisors ($278.6 million), JPMorgan Chase & Co ($220.5 million), Vanguard Portfolio Management LLC ($192.0 million), Vanguard Capital Management LLC ($157.5 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was POST's revenue in fiscal year 2025?
For the fiscal year ended September 30, 2025 (FY2025), Post Holdings Inc (POST) reported revenue of $8.2 billion (up 3.0% from FY2024) and net income of $335.7 million. Diluted EPS was $5.51. The figures come from the XBRL data in the 10-K.
What are the latest POST SEC filings?
Post Holdings Inc (POST) filed its latest 10-K annual report on November 21, 2025, a 10-Q quarterly report on August 6, 2026, an 8-K current report on August 7, 2026 and a Form 4 insider filing on October 2, 2026.
What is POST's SEC CIK number?
Post Holdings Inc (POST)'s SEC Central Index Key (CIK) is 1530950. EDGAR lists every POST filing under that number.
Ask anything about POST
The research agent reads POST's filings, financials, insider trades and 13F holders, then answers with sources.