367 tracked 13F filers disclose a position in POST as of the latest SEC 13F filings, a combined $4.2B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $393.4M | 4.0M | ▼−5.3% Reduced · −224K sh | Q1 2026 | |
| 2 | DIMENSIONAL FUND ADVISORS LP | $303.7M | 3.1M | ▲+3.9% Added · +115K sh | Q1 2026 | |
| 3 | Route One Investment Company, L.P. | $291.7M | 3.0M | ▼−5.9% Reduced · −186K sh | Q1 2026 | |
| 4 | JPMORGAN CHASE & CO | $259.4M | 2.7M | ▼−10% Reduced · −307K sh | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $240.4M | 2.4M | →First observed position No prior filed position | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $185.3M | 1.9M | →First observed position No prior filed position | Q1 2026 | |
| 7 | Holocene Advisors, LP | $174.7M | 1.8M | ▲+53% Added · +609K sh | Q1 2026 | |
| 8 | LONDON CO OF VIRGINIA | $146.0M | 1.5M | ▼−6.9% Reduced · −110K sh | Q1 2026 | |
| 9 | TWO SIGMA INVESTMENTS, LP | $137.6M | 1.4M | ▲+92% Added · +666K sh | Q1 2026 | |
| 10 | STATE STREET CORP | $119.0M | 1.3M | ▼−5.2% Reduced · −74K sh | Q2 2026 | |
| 11 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | $124.9M | 1.3M | ▼−5.5% Reduced · −74K sh | Q1 2026 | |
| 12 | Clarkston Capital Partners, LLC | $106.4M | 1.2M | ▲+1.1% Added · +13K sh | Q2 2026 | |
| 13 | NORGES BANK | $113.7M | 1.1M | ▼−8.2% Reduced · −103K sh | Q4 2025 | |
| 14 | UBS Group AG | $103.2M | 1.0M | ▲+69% Added · +426K sh | Q1 2026 | |
| 15 | FMR LLC | $82.2M | 831K | ▼−9.6% Reduced · −88K sh | Q1 2026 | |
| 16 | MORGAN STANLEY | $78.6M | 795K | ▼−13% Reduced · −115K sh | Q1 2026 | |
| 17 | GEODE CAPITAL MANAGEMENT, LLC | $65.9M | 747K | ▼−7.4% Reduced · −60K sh | Q2 2026 | |
| 18 | T. Rowe Price Investment Management, Inc. | Withheld | 688K | ▼−8.1% Reduced · −61K sh | Q1 2026 | |
| 19 | DIAMOND HILL CAPITAL MANAGEMENT INC | $54.6M | 619K | ▼−24% Reduced · −198K sh | Q2 2026 | |
| 20 | Junto Capital Management LP | $52.0M | 589K | ▲+45% Added · +182K sh | Q2 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $46.1M | 466K | ▼−6.5% Reduced · −32K sh | Q1 2026 | |
| 22 | Quantinno Capital Management LP | $45.7M | 463K | ▲+41% Added · +135K sh | Q1 2026 | |
| 23 | Fisher Asset Management, LLC | $45.3M | 458K | ▲+89% Added · +216K sh | Q1 2026 | |
| 24 | Point72 Asset Management, L.P. | $42.2M | 427K | ▲+417% Added · +345K sh | Q1 2026 | |
| 25 | NORTHERN TRUST CORP | $38.4M | 389K | ▼−4.2% Reduced · −17K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 3 funds opened a new position in POST and 26 added to an existing one, while 22 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 208 funds | $247.1B |
| AMAZON.COM INCAMZN | 207 funds | $187.6B |
| META PLATFORMS INC-CLASS AMETA | 207 funds | $103.6B |
| NVIDIA CORPNVDA | 202 funds | $362.3B |
| ALPHABET INC-CL AGOOGL | 202 funds | $153.3B |
| ELI LILLY & COLLY | 199 funds | $71.7B |
| ALPHABET INC-CL CGOOG | 198 funds | $114.7B |
| APPLE INCAAPL | 197 funds | $271.2B |
| CHEVRON CORPCVX | 197 funds | $30.6B |
| BROADCOM INCAVGO | 196 funds | $142.8B |
| JPMORGAN CHASE & COJPM | 196 funds | $59.4B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 195 funds | $34.5B |
Ranked by how many of POST's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 13, 2026 | CURL GREGORY L | Director | Sell (S) | 6K | $650K |
| Feb 9, 2026 | CURL GREGORY L | Director | Sell (S) | 7K | $798K |
| Dec 5, 2025 | HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Sell (S) | 2K | $160K |
| Nov 25, 2025 | CATOGGIO NICOLAS | PRES & CEO, PCB | Sell (S) | 10K | $1.0M |
| Nov 24, 2025 | KEMPER DAVID W | Director | Buy (P) | 2K | $176K |
| Aug 19, 2025 | STIRITZ WILLIAM P | Director | Buy (P) | 36K | $3.9M |
| Jun 5, 2025 | CATOGGIO NICOLAS | PRES & CEO, PCB | Sell (S) | 2K | $191K |
| Jun 5, 2025 | STIRITZ WILLIAM P | Director | Buy (P) | 187K | $20.4M |
| Mar 7, 2025 | CATOGGIO NICOLAS | PRES & CEO, PCB | Sell (S) | 5K | $585K |
| Mar 4, 2025 | HARPER BRADLY A | SVP, CHIEF ACCTING OFFICER | Sell (S) | 2K | $229K |
| Mar 3, 2025 | CATOGGIO NICOLAS | PRES & CEO, PCB | Sell (S) | 5K | $573K |
| Feb 25, 2025 | VITALE ROBERT V | PRESIDENT & CEO, Director | Sell (S) | 40K | $4.7M |
| Class | 13F holders | Value held |
|---|---|---|
| POSTthis pagecs | 367 funds | $4.2B |
| POST 2.5 08/15/27NOTE 2.500% 8/1 | 45 funds | $470.9M |
| 737446AQ7Corporate Bond - Domestic | 1 funds | $115K |
| 737446AY0Corporate Bond - Domestic | 1 funds | $113K |
| 737446AV6Corporate Bond - Domestic | 1 funds | $99K |
| 737446AX2Corporate Bond - Domestic | 1 funds | $98K |
| 737446AU8Corporate Bond - Domestic | 1 funds | $86K |
| 737446AR5Corporate Bond - Domestic | 1 funds | $79K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for POST
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/POST/capital-change-brief"
Use Arkolith's capital_change_brief for POST. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for POST. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.