Cerus Corporation
Ownership
Ownership Structure
Who owns Cerus Corporation (CERS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 96.9% of the shares are freely tradable; institutional investors hold 74.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 11.02 | 22,215,127 | +3.0 | 06/30/2026 |
| ARK Investment Management LLC | 8.90 | 17,932,099 | -6.4 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.25 | 8,563,424 | +5.3 | 06/30/2026 |
| Baker Bros Advisors LP | 3.17 | 6,395,431 | -36.1 | 06/30/2026 |
| D. E. Shaw & Co LP | 2.72 | 5,485,983 | +47.0 | 06/30/2026 |
| Geode Capital Management, LLC | 2.54 | 5,119,019 | +10.4 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| ARK Innovation ETF | 5.13 | 10,331,505 | -7.3 | 09/30/2026 |
| ARK Genomic Revolution ETF | 3.76 | 7,576,654 | +0.2 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.01 | 6,075,566 | +0.0 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.59 | 5,209,630 | -1.1 | 09/30/2026 |
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 |
|---|---|---|---|---|---|
| Jayaraman Vivek K | Chief Executive Officer | 2,232,211 | 5,134,085 $ | Jul 16, 2026 | direct |
| Jensen Chrystal | Chief Legal Officer | 936,657 | 2,154,311 $ | Aug 17, 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 17, 2026 | Jensen Chrystal | Chief Legal Officer | Sell | 30,000 | 2.98 | 89,529 |
| Jul 16, 2026 | Jayaraman Vivek K | Chief Executive Officer | Sell | 16,666 | 3.16 | 52,665 |
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.