Arcus Biosciences Inc
Ownership
Ownership Structure
Who owns Arcus Biosciences Inc (RCUS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 72.0% of the shares are freely tradable; institutional investors hold 72.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 12.89 | 16,416,249 | +7.8 | 06/30/2026 |
| State Street Corp | 4.74 | 6,029,484 | +11.4 | 06/30/2026 |
| Wellington Management Company LLP | 4.63 | 5,895,448 | -3.2 | 06/30/2026 |
| Suvretta Capital Management, LLC | 3.75 | 4,776,423 | -5.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 3.51 | 4,475,528 | +4.8 | 06/30/2026 |
| FMR Inc | 3.18 | 4,049,757 | +247.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.05 | 3,888,346 | +0.8 | 06/30/2026 |
| Citadel Advisors Llc | 2.46 | 3,135,057 | +135.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 4.24 | 5,381,746 | +0.0 | 09/30/2026 |
| Vanguard Health Care Inv | 2.71 | 3,445,827 | -16.5 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Jaen Juan C. | President | 822,240 | 14,964,768 $ | Jul 10, 2026 | indirect |
| Azoy Alexander | Chief Accounting Officer | 39,581 | 720,374 $ | Aug 21, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 21, 2026 | Azoy Alexander | Chief Accounting Officer | Sell | 2,827 | 30.00 | 84,810 |
| Aug 21, 2026 | Azoy Alexander | Chief Accounting Officer | Other | 2,827 | 15.44 | 43,649 |
| Jul 10, 2026 | Jaen Juan C. | President | Sell | 268 | 29.40 | 7,878 |
| Jul 10, 2026 | Jaen Juan C. | President | Sell | 19,799 | 28.61 | 566,410 |
| Jul 9, 2026 | Jaen Juan C. | President | Sell | 48,502 | 30.05 | 1,457,631 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.