Security key
157085101
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 79,803,342
- Total 13F value
- $437,316,658
- Share change
- +12,558,424
- Put/Call ratio
- 147%
- SEC-reported price per share
- $5.48
- Number of holders
- 127
- Value change
- +$69,094,698
- Number of buys
- 71
- Number of sells
- 35
- Shares outstanding
- 192,719,608
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2018
Institutions
127
Top holders
10
CERS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
CERUS CORP SEC filings
CERUS CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 157085101
Recent filing periods:
Ownership snapshot
Top reported holders of CERS - CERUS CORP - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BAKER BROS. ADVISORS LP
Disclosed value leader
BAKER BROS. ADVISORS LP
Comparable rows
15/15
Latest evidence
31 Dec 2017
13F
Lead comparable stake: 5.1%
Showing 1-6 of 15 holder rows.
Quick read
BAKER BROS. ADVISORS LP leads the comparable SEC ownership view at 5.1%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BAKER BROS. ADVISORS LP's linked filing trail.
Comparable ownership
Top 5
BAKER BROS. ADVISORS LP
5.1%
BlackRock Finance, Inc.
4.4%
PRIMECAP MANAGEMENT CO/CA/
4%
Elk Creek Partners, LLC
3.4%
VANGUARD GROUP INC
2.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BAKER BROS. ADVISORS LP |
13F
Company
|
5.1%
|
$32,939,000
9,745,209 shares
|
— | 31 Dec 2017 |
| BlackRock Finance, Inc. |
13F
Company
|
4.4%
|
$28,682,000
8,485,711 shares
|
— | 31 Dec 2017 |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
Company
|
4%
|
$26,364,000
7,800,000 shares
|
— | 31 Dec 2017 |
| Elk Creek Partners, LLC |
13F
Company
|
3.4%
|
$22,130,000
6,547,378 shares
|
— | 31 Dec 2017 |
| VANGUARD GROUP INC |
13F
Company
|
2.8%
|
$18,246,000
5,398,217 shares
|
— | 31 Dec 2017 |
| ARK Investment Management LLC |
13F
Company
|
1.8%
|
$12,048,000
3,564,373 shares
|
— | 31 Dec 2017 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2018
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
127
Shares
79,803,342
Rows available
127
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2018 vs Q1 2018 Across Filers
Q1 2018 holders
127
Q1 2018 holders
127
Holder diff
0
| Investor | Q1 2018 Shares | Q1 2018 Shares | Share Diff | Share Chg % | Q1 2018 value | Q1 2018 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend