Rubicon Founders LLC holds a concentrated book of 3 reported positions worth $196.4M as of Q2 2026 (disclosed Aug 14, 2026, a ~45-day 13F lag). This quarter they trimmed Agilon Health Inc. Their largest long position is Privia Health Group Inc at 78% of the reported non-option book.
Top-heavy: concentrated book
Excluding Privia Health Group Inc (78% of the book), the rest is a concentrated book:
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
94% 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 (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Rubicon Founders LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| State of Wyoming | 2 / 3 | $992K |
| Algert Global LLC | 2 / 3 | $6.2M |
| Quantbot Technologies LP | 2 / 3 | $1.1M |
| Engineers Gate Manager LP | 2 / 3 | $2.0M |
| Qube Research & Technologies Ltd | 2 / 3 | $12.9M |
| Man Group plc | 2 / 3 | $8.1M |
| Versant Capital Management, Inc | 2 / 3 | $112K |
| D. E. Shaw & Co., Inc. | 2 / 3 | $15.8M |
Ranked by the share of each fund's own book sitting in the names it shares with Rubicon Founders LLC: 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 | Privia Health Group Inc COM | $153.6M | 5.97M | 78.2% | ▲+0.4% Added · +22K sh | |
| 2 | Evolent Health Inc CL A | $31.5M | 5.82M | 16.0% | —Held | |
| 3 | Agilon Health Inc COM | $11.3M | 105.3K | 5.7% | ▼−58% Reduced · −146K sh |
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/2032489/holdings"
Use Arkolith to show Rubicon Founders LLC'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 | Aug 14, 2026 | 45d | 3 | $196.4M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 45d | 3 | $137.6M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | May 15, 2026 | 135d | 3 | $164.5M | 13F-HR/A |
| Q3 2025 | Sep 30, 2025 | May 15, 2026 | 227d | 3 | $199.4M | 13F-HR/A |
| Q2 2025 | Jun 30, 2025 | May 15, 2026 | 319d | 3 | $212.8M | 13F-HR/A |
| Q1 2025 | Mar 31, 2025 | May 15, 2026 | 410d | 3 | $162.6M | 13F-HR/A |
| Q4 2024 | Dec 31, 2024 | Feb 12, 2025 | 43d | 1 | $112.9M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 45d | 1 | $105.1M | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Nov 14, 2024 | 137d | 1 | $100.3M | 13F-HR |
| Q1 2024 | Mar 31, 2024 | Nov 14, 2024 | 228d | 1 | $102.1M | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Nov 14, 2024 | 319d | 1 | $120.0M | 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.