SEC ownership of CERUS CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001020214.
- CIK
- 0001020214
- Symbol
- CERS on Nasdaq
- Location
- Concord, CA
- Parsed ownership evidence
- 13F, 13D/G, and 3/4/5
- Lead holder
- ARK Investment Management LLC
- 13D/G signal
- ARK Investment Management LLC
- Latest evidence date
- 01 May 2026
Ownership snapshot
Top shareholders of CERUS CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with the largest verified stakes, then open the linked filing trail.
Lead holder
ARK Investment Management LLC
13D/G signal
ARK Investment Management LLC
Evidence rows
50
Latest as of
01 May 2026
13F
13D/G
3/4/5
Lead comparable stake: 10%
13D/G row: ARK Investment Management LLC
| 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
|
0.87%
|
$5,020,122
1,673,374 shares
|
-$392,146 | 01 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 |
| Frank Witney |
3/4/5
Director
|
0.15%
|
$366,877
280,059 shares
|
— | 03 Jun 2025 |
| Eric Bjerkholt |
3/4/5
Director
|
0.12%
|
$290,994
222,133 shares
|
— | 03 Jun 2025 |
| Jami Kay Nachtsheim |
3/4/5
Director
|
0.11%
|
$272,954
208,362 shares
|
— | 03 Jun 2025 |
| Daniel N. Swisher Jr. |
3/4/5
Director
|
0.11%
|
$271,228
207,045 shares
|
— | 03 Jun 2025 |
| Timothy L. Moore |
3/4/5
Director
|
0.11%
|
$268,645
205,073 shares
|
— | 03 Jun 2025 |
| Ann Lucena |
3/4/5
Director
|
0.09%
|
$225,692
172,284 shares
|
— | 03 Jun 2025 |
| Hua Shan |
3/4/5
Director
|
0.07%
|
$173,425
132,386 shares
|
— | 03 Jun 2025 |
| Dean A. Gregory |
3/4/5
Director
|
0.05%
|
$108,406
86,725 shares
|
+$31,250 | 25 Aug 2025 |
| BlackRock, Inc. |
13F
Company
|
11%
|
$39,267,263
21,575,419 shares
|
— | 31 Mar 2026 |
| Soleus Capital Management, L.P. |
13F
Company
|
5.6%
|
$19,571,734
10,753,700 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
4.2%
|
$14,799,836
8,131,778 shares
|
— | 31 Mar 2026 |
| WASATCH ADVISORS LP |
13F
Company
|
2.7%
|
$9,611,668
5,281,136 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
2.4%
|
$8,442,110
4,637,440 shares
|
— | 31 Mar 2026 |
| Amova Asset Management Americas, Inc. |
13F
Company
|
2.3%
|
$8,220,223
4,516,606 shares
|
— | 31 Mar 2026 |
| Sumitomo Mitsui Trust Group, Inc. |
13F
Company
|
2.3%
|
$8,220,223
4,516,606 shares
|
— | 31 Mar 2026 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC |
13F
Company
|
2.2%
|
$7,719,368
4,241,411 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
Company
|
2.2%
|
$7,671,122
4,214,902 shares
|
— | 31 Mar 2026 |
| Senvest Management, LLC |
13F
Company
|
2.1%
|
$7,487,591
4,114,061 shares
|
— | 31 Mar 2026 |
| D. E. Shaw & Co., Inc. |
13F
Company
|
1.9%
|
$6,790,694
3,731,151 shares
|
— | 31 Mar 2026 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
1.9%
|
$6,746,000
3,709,501 shares
|
— | 31 Mar 2026 |
| SILVERARC CAPITAL MANAGEMENT, LLC |
13F
Company
|
1.6%
|
$5,781,316
3,176,547 shares
|
— | 31 Mar 2026 |
| GOLDMAN SACHS GROUP INC |
13F
Company
|
1.4%
|
$5,038,857
2,768,603 shares
|
— | 31 Mar 2026 |
| TWO SIGMA INVESTMENTS, LP |
13F
Company
|
1.4%
|
$4,995,938
2,745,021 shares
|
— | 31 Mar 2026 |
| IEQ CAPITAL, LLC |
13F
Company
|
1.3%
|
$4,446,699
2,443,241 shares
|
— | 31 Mar 2026 |
| AQR CAPITAL MANAGEMENT LLC |
13F
Company
|
1.1%
|
$3,846,084
2,113,232 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
1.1%
|
$3,820,822
2,099,353 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
1%
|
$3,492,702
1,919,067 shares
|
— | 31 Mar 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
Company
|
0.85%
|
$2,966,726
1,630,069 shares
|
— | 31 Mar 2026 |
| NORTHERN TRUST CORP |
13F
Company
|
0.77%
|
$2,702,864
1,485,090 shares
|
— | 31 Mar 2026 |
| VANGUARD FIDUCIARY TRUST CO |
13F
Company
|
0.68%
|
$2,373,458
1,304,098 shares
|
— | 31 Mar 2026 |
| Assenagon Asset Management S.A. |
13F
Company
|
0.65%
|
$2,276,989
1,251,093 shares
|
— | 31 Mar 2026 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
0.63%
|
$2,217,361
1,218,330 shares
|
— | 31 Mar 2026 |
| FMR LLC |
13F
Company
|
0.63%
|
$2,194,441
1,205,737 shares
|
— | 31 Mar 2026 |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
Company
|
0.57%
|
$2,015,373
1,107,348 shares
|
— | 31 Mar 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
Company
|
0.5%
|
$1,750,123
961,606 shares
|
— | 31 Mar 2026 |
| MORGAN STANLEY |
13F
Company
|
0.43%
|
$1,503,290
825,984 shares
|
— | 31 Mar 2026 |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
Company
|
0.41%
|
$1,436,526
789,300 shares
|
— | 31 Mar 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
Company
|
0.41%
|
$1,424,265
782,563 shares
|
— | 31 Mar 2026 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd |
13F
Company
|
0.41%
|
$1,421,336
780,954 shares
|
— | 31 Mar 2026 |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
Company
|
0.36%
|
$1,250,153
686,897 shares
|
— | 31 Mar 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.3%
|
$1,053,598
578,900 shares
|
— | 31 Mar 2026 |
| GLOBEFLEX CAPITAL L P |
13F
Company
|
0.27%
|
$950,220
522,099 shares
|
— | 31 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: -$2,215,630.
Buys
$31,250
Insiders: 1
Sells
$2,246,880
Insiders: 5
Net
-$2,215,630
Shares: -1,240,949
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 25,000
Shares: 1,265,949
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 1,210,949 | $0 | $2,153,380 | -$2,153,380 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 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
Current reporting-owner rows connected to CERUS CORP. Open the relationship link for the CIK-to-CIK filing trail.
Rows
17
Lead holder
William Mariner Greenman
Net 12M change
-$2,215,630
Latest report
01 May 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 | $5,020,122 | -$392,146 | -7.2% | Filing P/S | 01 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 | ||
| Frank Witney | Director | $366,877 | Mixed | 03 Jun 2025 | ||
| Timothy B. Anderson | Director | $346,669 | Mixed | 01 Jun 2021 | ||
| Eric Bjerkholt | Director | $290,994 | Mixed | 03 Jun 2025 | ||
| Jami Kay Nachtsheim | Director | $272,954 | Mixed | 03 Jun 2025 | ||
| Daniel N. Swisher Jr. | Director | $271,228 | Mixed | 03 Jun 2025 | ||
| Timothy L. Moore | Director | $268,645 | Mixed | 03 Jun 2025 | ||
| Ann Lucena | Director | $225,692 | Mixed | 03 Jun 2025 | ||
| Hua Shan | Director | $173,425 | Mixed | 03 Jun 2025 | ||
| Dean A. Gregory | Director | $108,406 | +$31,250 | +41% | Filing P/S | 25 Aug 2025 |
Recent Insider Transactions by Companies or Individuals for CERUS CORP
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Frank Witney | CERS | Common Stock | Award | 27.3% | 60,000 | 280,059 | 03 Jun 2025 | Direct | ||
| Timothy L. Moore | CERS | Common Stock | Award | 41.4% | 60,000 | 205,073 | 03 Jun 2025 | Direct | ||
| Daniel N. Swisher Jr. | CERS | Common Stock | Award | 40.8% | 60,000 | 207,045 | 03 Jun 2025 | Direct | ||
| Jami K. Nachtsheim | CERS | Common Stock | Award | 40.4% | 60,000 | 208,362 | 03 Jun 2025 | Direct | ||
| Ann Lucena | CERS | Common Stock | Award | 53.4% | 60,000 | 172,284 | 03 Jun 2025 | Direct | ||
| Hua Shan | CERS | Common Stock | Award | 82.9% | 60,000 | 132,386 | 03 Jun 2025 | Direct | ||
| Eric Bjerkholt | CERS | Common Stock | Award | 37% | 60,000 | 222,133 | 03 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.