Cerus
CERS · NASDAQ
$2.31+$0.09 (+4.05%)TodayMarket closed ·
Prev close $2.22
Who owns CERS
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 39.2% of CERS’s shares.
- ARK Investment Management LLC8.9%
- BlackRock Institutional Trust Company, N.A.8.6%
- Vanguard Capital Management, LLC4.3%
- Baker Bros. Advisors LP3.2%
- Next 6 largest institutions14.2%
- All other shareholders60.8%
| Holder | Shares | % of shares |
|---|---|---|
| ARK Investment Management LLC | 17.93M | 8.95% |
| BlackRock Institutional Trust Company, N.A. | 17.31M | 8.64% |
| Vanguard Capital Management, LLC | 8.56M | 4.27% |
| Baker Bros. Advisors LP | 6.40M | 3.19% |
| D. E. Shaw & Co., L.P. | 5.49M | 2.74% |
| Geode Capital Management, L.L.C. | 5.12M | 2.55% |
| State Street Investment Management (US) | 4.75M | 2.37% |
| Senvest Management, LLC | 4.61M | 2.30% |
| Acadian Asset Management LLC | 4.27M | 2.13% |
| Amova Asset Management Co., Ltd. | 4.14M | 2.07% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| ARK Innovation ETF | 8.70M | 4.34% |
| ARK Genomic Revolution ETF | 7.90M | 3.94% |
| Vanguard Total Stock Market Index Fund | 6.08M | 3.03% |
| iShares Russell 2000 ETF | 5.16M | 2.58% |
| Amova Global Umbrella Fund - Amova ARK Disruptive Innovation Fund | 3.66M | 1.83% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $890.67K (9 trades) of CERS on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Jensen Chrystal | Sale | 30.00K | $89.53K |
| Jayaraman Vivek K | Sale | 16.67K | $52.66K |
| Jayaraman Vivek K | Award | 369.69K | — |
| Jayaraman Vivek K | Award | 554.53K | — |
| Jayaraman Vivek K | Sale | 42.36K | $124.66K |
| Jayaraman Vivek K | Award | 80.00K | — |
| Jensen Chrystal | Sale | 24.33K | $71.60K |
| Jensen Chrystal | Award | 55.00K | — |
| Green Kevin Dennis | Sale | 33.68K | $99.11K |
| Green Kevin Dennis | Award | 63.60K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 17.58M
- Days to cover
- 8.03
- % of shares outstanding
- 8.77%
- Average daily volume
- 2.19M
- Change since last report
- −2.3%
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