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 | 11.96 | 15,226,475 | +1.5 | 03/31/2026 |
| Wellington Management Company LLP | 4.63 | 5,895,448 | -3.2 | 06/30/2026 |
| State Street Corp | 4.25 | 5,412,901 | +18.3 | 03/31/2026 |
| Suvretta Capital Management, LLC | 3.95 | 5,030,993 | -3.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 3.36 | 4,272,056 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.03 | 3,856,725 | +0.0 | 03/31/2026 |
| Woodline Partners LP | 2.97 | 3,777,798 | +0.2 | 03/31/2026 |
| Marshall Wace Asset Management Ltd | 2.95 | 3,761,437 | +11.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 4.15 | 5,287,519 | +0.0 | 08/31/2026 |
| 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 | 20,967,120 $ | Jul 10, 2026 | indirect |
| Azoy Alexander | Chief Accounting Officer | 39,581 | 1,009,316 $ | 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: September 17, 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.