Blacksheep Fund Management Ltd holds a concentrated book of 7 stocks worth $309.6M as of Q3 2026 (disclosed Aug 25, 2026, a ~0-day 13F lag). Their largest long position is Mastercard Inc - A at 25% of the equity book. Cloning the disclosed picks since 2026 would be +7% (+13.0%/yr). That is a simulation of the disclosed long book, not audited returns.
Growth of $10,000 cloning Blacksheep Fund Management Ltd's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~0 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
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, no cost basis
Other tracked managers holding the same core names as Blacksheep Fund Management Ltd
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| BlackRock, Inc. | 8 / 7 | $300.9B |
| VANGUARD CAPITAL MANAGEMENT LLC | 8 / 7 | $242.3B |
| STATE STREET CORP | 8 / 7 | $169.1B |
| GEODE CAPITAL MANAGEMENT, LLC | 8 / 7 | $99.3B |
| FMR LLC | 8 / 7 | $97.9B |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8 / 7 | $86.9B |
| MORGAN STANLEY | 8 / 7 | $69.5B |
| JPMORGAN CHASE & CO | 8 / 7 | $66.9B |
Ranked by how many of Blacksheep Fund Management Ltd's top 7 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Mastercard Incorporated CL A | $78.8M | 153.4K | 25.5% | ▲+75% Added · +66K sh | |
| 2 | Visa Inc COM CL A | $64.0M | 186.6K | 20.7% | ▲+85% Added · +86K sh | |
| 3 | Transdigm Group Inc COM | $60.9M | 45.8K | 19.7% | —Held | |
| 4 | Microsoft Corp COM | $48.5M | 130.1K | 15.7% | —Held | |
| 5 | Liberty Media Corp Del COM LBTY ONE S C | $33.5M | 351.7K | 10.8% | —Held | |
| 6 | Tucows Inc COM NEW | $14.7M | 1.09M | 4.8% | —Held | |
| 7 | Liberty Media Corp Del COM LBTY ONE S A | $9.1M | 104.0K | 2.9% | —Held |
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
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/1800249/holdings"
Use Arkolith to show Blacksheep Fund Management Ltd's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q3 2026 | Aug 25, 2026 | Aug 25, 2026 | 7 | $309.6M | 13F-HR/A |
| Q2 2026 | May 13, 2026 | May 13, 2026 | 8 | $247.2M | 13F-HR |
| Q1 2026 | Feb 13, 2026 | Feb 13, 2026 | 8 | $246.0M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.