Westchester Capital Management, Inc. holds a focused book of 46 reported positions worth $555.4M as of Q2 2026 (disclosed Jul 23, 2026, a ~23-day 13F lag). This quarter they opened SS SPDR S&P 500 ETF Trust-US and trimmed Caterpillar Inc. Their largest long position is Caterpillar Inc at 11% of the reported non-option book.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
99% mapped to company sectors
+2 sectors below the cut, 1% together
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Westchester Capital Management, Inc.
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Power Alpha Investment Ltd | 4 / 46 | $993.6M |
| Innovator Capital Management, LLC | 7 / 46 | $2.9B |
| Donor Advised Charitable Giving, Inc. | 6 / 46 | $4.5B |
| Swiss Re Ltd | 34 / 46 | $1.0B |
| Hoffman, Alan N Investment Management | 7 / 46 | $153.1M |
| Ramsey Quantitative Systems | 4 / 46 | $95.1M |
| Independent Investors Inc | 26 / 46 | $429.0M |
| Agave Capital Management Ltd | 6 / 46 | $745.7M |
Ranked by the share of each fund's own book sitting in the names it shares with Westchester Capital Management, Inc.: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Caterpillar, Inc. common stock | $59.4M | 55.8K | 10.7% | ▼−5.2% Reduced · −3K sh | |
| 2 | Apple, Inc. common stock | $44.2M | 152.6K | 8.0% | ▼−2.6% Reduced · −4K sh | |
| 3 | Alphabet, Inc. Class A - Formerly Google A common stock | $36.7M | 102.6K | 6.6% | ▼−0.9% Reduced · −964 sh | |
| 4 | Berkshire Hathaway Class B common stock | $28.7M | 57.4K | 5.2% | ▲+0.2% Added · +123 sh | |
| 5 | Cisco Systems, Inc. common stock | $28.3M | 240.6K | 5.1% | ▼−4.3% Reduced · −11K sh | |
| 6 | Wal-Mart, Inc. common stock | $27.8M | 245.5K | 5.0% | ▼−2.3% Reduced · −6K sh | |
| 7 | Microsoft Corporation common stock | $27.2M | 72.9K | 4.9% | ▼−1.1% Reduced · −778 sh | |
| 8 | JP Morgan Chase common stock | $26.9M | 82.1K | 4.8% | ▼−1.6% Reduced · −1K sh | |
| 9 | AbbVie, Inc. common stock | $25.8M | 102.6K | 4.7% | ▼−1.0% Reduced · −1K sh | |
| 10 | The Bank of New York Mellon Corporation common stock | $25.5M | 176.3K | 4.6% | ▼−4.6% Reduced · −8K sh | |
| 11 | Intel Corporation common stock | $25.2M | 180.4K | 4.5% | ▼−4.8% Reduced · −9K sh | |
| 12 | Valero Energy Corporation common stock | $21.7M | 83.3K | 3.9% | ▼−2.8% Reduced · −2K sh | |
| 13 | Waste Management, Inc. common stock | $19.7M | 88.6K | 3.6% | ▼−1.9% Reduced · −2K sh | |
| 14 | Microchip Technology, Inc. common stock | $18.0M | 197.6K | 3.2% | ▼−1.7% Reduced · −3K sh | |
| 15 | Exxon Mobil Corporation common stock | $16.2M | 118.3K | 2.9% | ▼−1.9% Reduced · −2K sh | |
| 16 | Lockheed Martin Corporation common stock | $16.1M | 31.6K | 2.9% | ▼−2.0% Reduced · −637 sh | |
| 17 | Johnson & Johnson common stock | $15.2M | 59.7K | 2.7% | ▼−1.6% Reduced · −978 sh | |
| 18 | McDonald's Corporation common stock | $15.1M | 55.7K | 2.7% | ▲+7.9% Added · +4K sh | |
| 19 | Home Depot, Inc. common stock | $13.7M | 38.8K | 2.5% | ▼−0.8% Reduced · −305 sh | |
| 20 | Amazon.Com, Inc. common stock | $10.2M | 42.8K | 1.8% | ▲+1.0% Added · +423 sh | |
| 21 | Medtronic PLC common stock | $7.8M | 99.2K | 1.4% | ▼−2.1% Reduced · −2K sh | |
| 22 | Salesforce.com Inc common stock | $7.4M | 47.0K | 1.3% | ▲+1.8% Added · +820 sh | |
| 23 | Becton Dickinson & Company common stock | $7.0M | 46.5K | 1.3% | ▼−1.7% Reduced · −800 sh | |
| 24 | Pfizer, Inc. common stock | $6.7M | 276.3K | 1.2% | ▼−1.9% Reduced · −5K sh | |
| 25 | Walt Disney Company common stock | $4.3M | 44.7K | 0.8% | ▼−3.1% Reduced · −1K sh | |
| 26 | Meta Platforms, Inc. common stock | $3.6M | 6.3K | 0.6% | ▲+759% Added · +6K sh | |
| 27 | AT&T common stock | $2.5M | 119.0K | 0.4% | ▼−2.3% Reduced · −3K sh | |
| 28 | Nvidia Corporation common stock | $2.2M | 11.2K | 0.4% | —Held | |
| 29 | Boeing Company common stock | $2.2M | 10.4K | 0.4% | —Held | |
| 30 | iShares Core S&P 500 ETF common stock | $2.2M | 2.9K | 0.4% | —Held | |
| 31 | Pepsico, Inc. common stock | $2.1M | 15.5K | 0.4% | ▲+6.5% Added · +941 sh | |
| 32 | Waters Corporation common stock | $2.0M | 5.2K | 0.4% | ▼−15% Reduced · −956 sh | |
| 33 | Lowe's Companies, Inc. common stock | $842K | 3.8K | 0.2% | ▼−3.5% Reduced · −140 sh | |
| 34 | Conagra Brands Inc. common stock | $710K | 52.8K | 0.1% | ▼−1.2% Reduced · −633 sh | |
| 35 | State Street SPDR S&P 500 ETF Trust common stock | $405K | 543 | 0.1% | ▲New New position | |
| 36 | Vanguard S&P 500 ETF common stock | $353K | 514 | 0.1% | ▼−5.3% Reduced · −29 sh | |
| 37 | iShares Total US Stock Market ETF common stock | $314K | 1.9K | 0.1% | —Held | |
| 38 | Verizon Communications common stock | $293K | 6.9K | 0.1% | —Held | |
| 39 | American Express Company common stock | $223K | 660 | <0.1% | —Held | |
| 40 | Vanguard Total Bond Market ETF common stock | $219K | 3.0K | <0.1% | —Held | |
| 41 | Alphabet, Inc. Class C - Formerly Google C common stock | $191K | 540 | <0.1% | —Held | |
| 42 | Chevron Corporation common stock | $167K | 1.0K | <0.1% | —Held | |
| 43 | Vanguard Short Term Corp Bond Index ETF common stock | $136K | 1.7K | <0.1% | —Held | |
| 44 | Vanguard Short Term Treasury Index ETF common stock | $134K | 2.3K | <0.1% | —Held | |
| 45 | Coca Cola Company common stock | $118K | 1.4K | <0.1% | —Held | |
| 46 | Bank of America Corp. common stock | $17K | 300 | <0.1% | —Held |
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1390063/holdings"
Use Arkolith to show Westchester Capital Management, Inc.'s latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
| Quarter | As of | Filed | Lag | Positions | Value | Form |
|---|---|---|---|---|---|---|
| Q2 2026 | Jun 30, 2026 | Jul 23, 2026 | 23d | 46 | $555.4M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | May 6, 2026 | 36d | 45 | $496.5M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 13, 2026 | 44d | 43 | $483.7M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 7, 2025 | 38d | 43 | $465.2M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 25, 2025 | 25d | 39 | $425.0M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 9, 2025 | 39d | 39 | $402.2M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 10, 2025 | 41d | 41 | $397.6M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 1, 2024 | 32d | 41 | $411.7M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.