Comparable stake leader
ARK Investment Management LLC
SEC ownership of CERUS CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001020214.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
09 Jun 2026
- Public ticker
- CERS on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
ARK Investment Management LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
ARK Investment Management LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
09 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001020214
- Issuer location
- Concord, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CERUS CORP (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
ARK Investment Management...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
09 Jun 2026
13F
13D/G
3/4/5
Lead comparable stake: 10%
13D/G row: ARK Investment Management LLC
Showing 1-8 of 50 holder rows.
Quick read
ARK Investment Management LLC leads the comparable SEC ownership view at 10%.
50 of 50 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 ARK Investment Management LLC's linked filing trail.
Comparable ownership
Top 5
ARK Investment Management LLC
10%
BAKER BROS. ADVISORS LP
5.2%
Soleus Capital Master Fund, L.P.
5.1%
William Mariner Greenman
2.6%
Vivek K. Jayaraman
0.86%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ARK Investment Management LLC |
13F
13D/G
Company
|
10%
from 13D/G
|
$34,873,289
19,161,148 shares
|
— | 31 Mar 2026 |
| BAKER BROS. ADVISORS LP |
13F
13D/G
Company · Julian C. Baker
|
5.2%
from 13D/G
|
$18,215,188
10,008,345 shares
|
— | 31 Mar 2026 |
| Soleus Capital Master Fund, L.P. |
13D/G
|
5.1%
|
$21,033,418
9,828,700 shares
|
$0 | 23 Mar 2026 |
| William Mariner Greenman |
3/4/5
President and CEO, Director
|
2.6%
|
$8,283,502
4,998,493 shares
|
-$898,827 | 12 Mar 2026 |
| Vivek K. Jayaraman |
3/4/5
Chief Operating Officer
|
0.86%
|
$4,970,121
1,656,707 shares
|
-$442,147 | 29 May 2026 |
| Kevin Dennis Green |
3/4/5
Chief Financial Officer
|
0.64%
|
$2,555,535
1,240,551 shares
|
-$381,012 | 01 Apr 2026 |
| Chrystal N. Jensen |
3/4/5
Chief Legal Officer
|
0.59%
|
$2,361,029
1,146,131 shares
|
-$155,360 | 01 Apr 2026 |
| Richard J. Benjamin |
3/4/5
Chief Medical Officer
|
0.4%
|
$1,288,242
777,361 shares
|
-$419,535 | 12 Mar 2026 |
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.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$2,318,811.
Buys
$31,250
Insiders: 1
Sells
$2,350,061
Insiders: 6
Net
-$2,318,811
Shares: -1,278,070
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 25,000
Shares: 1,303,070
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 53,788 | $0 | $153,182 | -$153,182 |
| 3-6 | 0 | 1,194,282 | $0 | $2,103,379 | -$2,103,379 |
| 6-9 | 0 | 55,000 | $0 | $93,500 | -$93,500 |
| 9-12 | 25,000 | 0 | $31,250 | $0 | +$31,250 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to CERUS CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
William Mariner Greenman
Net 12M change
-$2,318,811
Latest report
09 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| William Mariner Greenman | President and CEO, Director | $8,283,502 | -$898,827 | -9.8% | Filing P/S | 12 Mar 2026 |
| Vivek K. Jayaraman | Chief Operating Officer | $4,970,121 | -$442,147 | -8.2% | Filing P/S | 29 May 2026 |
| Laurence M. Corash | Chief Scientific Officer | $4,619,583 | Filing P/S | 12 Mar 2024 | ||
| Kevin Dennis Green | Chief Financial Officer | $2,555,535 | -$381,012 | -13% | Mixed | 01 Apr 2026 |
| Chrystal N. Jensen | Chief Legal Officer | $2,361,029 | -$155,360 | -6.2% | Mixed | 01 Apr 2026 |
| Richard J. Benjamin | Chief Medical Officer | $1,288,242 | -$419,535 | -25% | Filing P/S | 12 Mar 2026 |
| Carol Moore | SVP Reg. & Quality | $968,686 | Filing P/S | 12 Mar 2024 | ||
| Gail Schulze | Director | $817,100 | Mixed | 05 Jun 2024 | ||
| Eric Bjerkholt | Director | $680,365 | -$53,180 | -7.2% | Filing P/S | 09 Jun 2026 |
| Frank Witney | Director | $618,907 | Median | 02 Jun 2026 | ||
| Jami K. Nachtsheim | Director | $488,418 | Median | 02 Jun 2026 | ||
| Ann Lucena | Director | $422,756 | Median | 02 Jun 2026 | ||
| Hua Shan | Director | $350,142 | Median | 02 Jun 2026 | ||
| Timothy B. Anderson | Director | $346,669 | Mixed | 01 Jun 2021 | ||
| Daniel N. Swisher Jr. | Director | $271,228 | Mixed | 03 Jun 2025 | ||
| Timothy L. Moore | Director | $268,645 | Mixed | 03 Jun 2025 | ||
| Dean A. Gregory | Director | $267,039 | +$31,250 | +13% | Median | 02 Jun 2026 |
Recent insider transactions for CERUS CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Eric Bjerkholt | CERS | Common Stock | Sale | -7.25% | $53,180 | $2.60 | -20,454 | 261,679 | 09 Jun 2026 | Direct |
| Ann Lucena | CERS | Common Stock | Award | 34.8% | 60,000 | 232,284 | 02 Jun 2026 | Direct | ||
| Eric Bjerkholt | CERS | Common Stock | Award | 27% | 60,000 | 282,133 | 02 Jun 2026 | Direct | ||
| Jami K. Nachtsheim | CERS | Common Stock | Award | 28.8% | 60,000 | 268,362 | 02 Jun 2026 | Direct | ||
| Frank Witney | CERS | Common Stock | Award | 21.4% | 60,000 | 340,059 | 02 Jun 2026 | Direct | ||
| Dean A. Gregory | CERS | Common Stock | Award | 69.2% | 60,000 | 146,725 | 02 Jun 2026 | Direct | ||
| Hua Shan | CERS | Common Stock | Award | 45.3% | 60,000 | 192,386 | 02 Jun 2026 | Direct | ||
| Vivek K. Jayaraman | CERS | Common Stock | Sale | -1% | $50,001 | $3.00 | -16,667 | 1,656,707 | 29 May 2026 | Direct |
| Vivek K. Jayaraman | CERS | Common Stock | Sale | -0.99% | $50,001 | $3.00 | -16,667 | 1,673,374 | 01 May 2026 | Direct |
| Kevin Dennis Green | CERS | Common Stock | Award | 19.2% | 200,000 | 1,240,551 | 01 Apr 2026 | Direct | ||
| Chrystal N. Jensen | CERS | Common Stock | Award | 21.1% | 200,000 | 1,146,131 | 01 Apr 2026 | Direct | ||
| Vivek K. Jayaraman | CERS | Common Stock | Sale | -8.64% | $273,769 | $1.66 | -165,200 | 1,747,674 | 12 Mar 2026 | Direct |
| William Mariner Greenman | CERS | Common Stock | Sale | -8.22% | $742,023 | $1.66 | -447,757 | 4,998,493 | 12 Mar 2026 | Direct |
| Kevin Dennis Green | CERS | Common Stock | Sale | -10.9% | $211,366 | $1.66 | -127,544 | 1,040,551 | 12 Mar 2026 | Direct |
| Richard J. Benjamin | CERS | Common Stock | Sale | -11.6% | $168,604 | $1.66 | -101,740 | 777,361 | 12 Mar 2026 | Direct |
| Richard J. Benjamin | CERS | Common Stock | Sale | -4.4% | $76,029 | $1.88 | -40,426 | 879,101 | 09 Mar 2026 | Direct |
| Richard J. Benjamin | CERS | Common Stock | Sale | -2.57% | $48,603 | $2.01 | -24,235 | 919,527 | 06 Mar 2026 | Direct |
| Kevin Dennis Green | CERS | Common Stock | Sale | -2.32% | $55,745 | $2.01 | -27,796 | 1,168,095 | 06 Mar 2026 | Direct |
| Chrystal Jensen | CERS | Common Stock | Sale | -2.83% | $61,860 | $2.01 | -30,845 | 1,059,139 | 06 Mar 2026 | Direct |
| Vivek K. Jayaraman | CERS | Common Stock | Sale | -1.75% | $68,376 | $2.01 | -34,094 | 1,912,874 | 06 Mar 2026 | Direct |
| William Mariner Greenman | CERS | Common Stock | Sale | -1.42% | $156,804 | $2.01 | -78,187 | 5,446,250 | 06 Mar 2026 | Direct |
| Richard J. Benjamin | CERS | Common Stock | Sale | -6.09% | $126,299 | $2.06 | -61,233 | 943,762 | 05 Mar 2026 | Direct |
| Richard J. Benjamin | CERS | Common Stock | Award | 5.81% | 55,220 | 1,004,995 | 05 Mar 2026 | Direct | ||
| Kevin Dennis Green | CERS | Common Stock | Sale | -4.41% | $113,902 | $2.06 | -55,225 | 1,195,891 | 05 Mar 2026 | Direct |
| Kevin Dennis Green | CERS | Common Stock | Award | 5.38% | 63,854 | 1,251,116 | 05 Mar 2026 | Direct | ||
| Chrystal Jensen | CERS | Common Stock | Award | 5.37% | 55,220 | 1,083,514 | 05 Mar 2026 | Direct | ||
| Vivek K. Jayaraman | CERS | Common Stock | Award | 4.3% | 80,320 | 1,946,968 | 05 Mar 2026 | Direct | ||
| William Mariner Greenman | CERS | Common Stock | Award | 3.63% | 193,270 | 5,524,437 | 05 Mar 2026 | Direct | ||
| Richard J. Benjamin | CERS | Common Stock | Award | 38.5% | 264,000 | 949,775 | 02 Mar 2026 | Direct | ||
| Kevin Dennis Green | CERS | Common Stock | Award | 33.8% | 300,000 | 1,187,262 | 02 Mar 2026 | Direct | ||
| William Mariner Greenman | CERS | Common Stock | Award | 29% | 1,200,000 | 5,331,167 | 02 Mar 2026 | Direct | ||
| Vivek K. Jayaraman | CERS | Common Stock | Award | 29% | 420,000 | 1,866,648 | 02 Mar 2026 | Direct | ||
| Chrystal Jensen | CERS | Common Stock | Award | 41.2% | 300,000 | 1,028,294 | 02 Mar 2026 | Direct | ||
| Chrystal N. Jensen | CERS | Common Stock | Sale | -7.02% | $93,500 | $1.70 | -55,000 | 728,294 | 24 Nov 2025 | Direct |
| Dean A. Gregory | CERS | Common Stock | Purchase | 40.5% | $31,250 | $1.25 | 25,000 | 86,725 | 25 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.