CERUS CORP CERS
COM · Common Stock · CUSIP 157085101
US-based reduced-pathogen blood biotechnology company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($70.2k this quarter). Holder counts are more reliable. Shares outstanding: 180.8m as of 2023-07-21, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $2.46. Options: 6 managers hold calls ($286.9k notional), 6 hold puts ($260.3k).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 188 |
| Q4 2022 | 185 |
| Q1 2023 | 168 |
| Q2 2023 | 158 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 73 | 96 |
| Q1 2023 | 77 | 81 |
| Q2 2023 | 69 | 75 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.2m | $3.4m | 2.80 |
| Q4 2022 | $1.5m | $1.2m | 0.78 |
| Q1 2023 | $672.5k | $324.3k | 0.48 |
| Q2 2023 | $286.9k | $260.3k | 0.91 |
Biggest buyers
| BlackRock Inc. | Added | +1.0m |
| CITADEL ADVISORS LLC | Added | +894.4k |
| WASATCH ADVISORS LP | Added | +854.6k |
| VOYA INVESTMENT MANAGEMENT LLC | Added | +564.9k |
| BARCLAYS PLC | Added | +529.9k |
| D. E. Shaw & Co., Inc. | Added | +475.1k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Added | +382.3k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | New | +362.3k |
| STATE STREET CORP | Added | +332.8k |
| Legal & General Group Plc | Added | +223.1k |
Biggest sellers
| BANK OF AMERICA CORP /DE/ | Reduced | -1.7m |
| ARK Investment Management LLC | Reduced | -1.4m |
| BAMCO INC /NY/ | Reduced | -1.4m |
| Polar Capital Holdings Plc | Reduced | -1.1m |
| Point72 Asset Management, L.P. | Reduced | -948.9k |
| Hood River Capital Management LLC | Reduced | -815.3k |
| MORGAN STANLEY | Reduced | -608.3k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -542.8k |
| Tamarack Advisers, LP | Reduced | -500.0k |
| VANGUARD GROUP INC | Reduced | -450.6k |
Biggest calls
| GROUP ONE TRADING LLC | Reduced | $121.3k49.3k shares |
| CITADEL ADVISORS LLC | Reduced | $66.9k27.2k shares |
| WOLVERINE TRADING, LLC | Added | $49.0k20.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $34.7k14.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $15.0k6.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Caption Management, LLC | Unchanged | $123.0k50.0k shares |
| CITADEL ADVISORS LLC | Reduced | $51.4k20.9k shares |
| SIMPLEX TRADING, LLC | Added | $46.0k18.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $36.9k15.0k shares |
| GROUP ONE TRADING LLC | Added | $3.0k1.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| ARK Investment Management LLC 13G · institution -1.1 pts · filed 2026-08-14 | 8.9% |
Fell to 5% or below in the last year: BAKER BROS. ADVISORS LP (3.2%, 2026-08-14), Soleus Capital Master Fund, L.P. (1.2%, 2026-08-13), VANGUARD GROUP INC (0.0%, 2026-03-26)
Insider purchases and sales in Q2 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 5 | $3.3m | — |
| Q1 2022 | 0 | — | 7 | $3.1m | — |
| Q2 2022 | 0 | — | 1 | $285.5k | — |
| Q3 2022 | 0 | — | 2 | $103.0k | — |
| Q4 2022 | 0 | — | 1 | $48.9k | — |
| Q1 2023 | 0 | — | 7 | $482.1k | — |
| Q2 2023 | 3 | $39.5k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-05-26 | Swisher Daniel N JR Director | Bought | $9.6k5.0k shares |
| 2023-05-24 | SCHULZE GAIL Director | Bought | $20.0k9.8k shares |
| 2023-05-23 | BJERKHOLT ERIC Director | Bought | $10.0k5.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| ARK Investment Management LLC 0.34% of their portfolio | 20.7m $50.8m | Reduced -1.4m |
| BAKER BROS. ADVISORS LP 0.23% of their portfolio | 16.1m $39.5m | Unchanged |
| BlackRock Inc. 0.00% of their portfolio | 14.0m $34.5m | Added +1.0m |
| VANGUARD GROUP INC 0.00% of their portfolio | 10.1m $24.8m | Reduced -450.6k |
| PRIMECAP MANAGEMENT CO/CA/ 0.02% of their portfolio | 8.6m $21.2m | Reduced -203.1k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 8.2m $20.3m | Added +219.2k |
| Amova Asset Management Americas, Inc. 0.21% of their portfolio | 8.2m $20.2m | Added +219.2k |
| WASATCH ADVISORS LP 0.09% of their portfolio | 5.9m $14.4m | Added +854.6k |
| Senvest Management, LLC 0.44% of their portfolio | 5.5m $13.4m | Reduced -104.7k |
| STATE STREET CORP 0.00% of their portfolio | 5.1m $12.7m | Added +332.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 3.5m $8.7m | Added +134.4k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 3.3m $8.1m | Added +475.1k |
| Hood River Capital Management LLC 0.22% of their portfolio | 3.1m $7.5m | Reduced -815.3k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.05% of their portfolio | 2.6m $6.4m | Added +382.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.9m $4.6m | Added +33.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 1.8m $4.5m | Added +564.9k |
| Tamarack Advisers, LP 3.27% of their portfolio | 1.8m $4.3m | Reduced -500.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 1.6m $4.0m | Added +38.2k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 1.3m $3.3m | Added +108.7k |
| Polar Capital Holdings Plc 0.02% of their portfolio | 1.3m $3.1m | Reduced -1.1m |
| BARCLAYS PLC 0.00% of their portfolio | 1.2m $2.9m | Added +529.9k |
| SILVERARC CAPITAL MANAGEMENT, LLC 0.96% of their portfolio | 1.2m $2.8m | Added +5.4k |
| Uniplan Investment Counsel, Inc. 0.18% of their portfolio | 986.7k $2.4m | Reduced -5.0k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 979.0k $2.4m | Added +894.4k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 970.1k $2.4m | Reduced -542.8k |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 950.1k $2.3m | Reduced -142.0k |
| MORGAN STANLEY 0.00% of their portfolio | 919.7k $2.3m | Reduced -608.3k |
| BAMCO INC /NY/ 0.01% of their portfolio | 825.0k $2.0m | Reduced -1.4m |
| Bank of New York Mellon Corp 0.00% of their portfolio | 696.5k $1.7m | Added +56.8k |
| Legal & General Group Plc 0.00% of their portfolio | 690.7k $1.7m | Added +223.1k |
| ALGERT GLOBAL LLC 0.06% of their portfolio | 522.1k $1.3m | Reduced -142.9k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.07% of their portfolio | 485.8k $1.2m | Reduced -57.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 443.3k $1.1m | Reduced -321.7k |
| EXCHANGE TRADED CONCEPTS, LLC 0.03% of their portfolio | 412.7k $1.0m | Added +79.3k |
| Sepio Capital, LP 0.03% of their portfolio | 393.3k $382.1k | Added +96.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 384.7k $946.3k | Reduced -234.8k |
| FMR LLC 0.00% of their portfolio | 383.5k $943.3k | Reduced -391.6k |
| Swiss National Bank 0.00% of their portfolio | 382.9k $941.9k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 379.6k $933.9k | Added +76.1k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 362.3k $891.3k | New |
| UBS Group AG 0.00% of their portfolio | 325.4k $800.5k | Added +124.6k |
| Lesa Sroufe & Co 0.79% of their portfolio | 301.5k $742.0k | Reduced -6.2k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 280.2k $689.3k | Added +7.7k |
| STEPHENS INC /AR/ 0.01% of their portfolio | 256.9k $632.1k | Reduced -11.3k |
| Engineers Gate Manager LP 0.02% of their portfolio | 256.1k $630.0k | Reduced -135.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 248.2k $737.2k | Unchanged |
| Bouvel Investment Partners, LLC 0.33% of their portfolio | 246.8k $607.3k | Added +12.8k |
| FORMULA GROWTH LTD 0.19% of their portfolio | 242.3k $596.0k | Unchanged |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 235.2k $578.6k | Added +6.1k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 230.4k $566.9k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 215.3k $529.6k | Reduced -4.8k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 214.1k $526.8k | Added +145.8k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 202.4k $497.8k | Added +10.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 202.1k $497.3k | Unchanged |
| Man Group plc 0.00% of their portfolio | 192.9k $474.5k | New |
| Bridgewater Associates, LP 0.00% of their portfolio | 192.2k $472.8k | Reduced -17.1k |
| Antonetti Capital Management LLC 0.65% of their portfolio | 182.7k $449.5k | Added +62.0k |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna 0.17% of their portfolio | 145.0k $356.7k | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 140.5k $345.7k | Added +3.3k |
| TOWNSQUARE CAPITAL LLC 0.01% of their portfolio | 130.9k $321.9k | Added +103.8k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 129.4k $318.4k | Added +17.1k |
| Capital Impact Advisors, LLC 0.35% of their portfolio | 129.4k $318.3k | Added +8.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 127.4k $314.0k | Added +3.3k |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.00% of their portfolio | 116.7k $287.0k | Reduced -1.2k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 111.4k $274.0k | Reduced -948.9k |
| SG Americas Securities, LLC 0.00% of their portfolio | 110.6k $272.0k | Reduced -111.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 107.5k $264.6k | Added +42.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 103.1k $253.6k | Added +18.9k |
| XTX Topco Ltd 0.04% of their portfolio | 100.8k $247.9k | Reduced -52.4k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 94.5k $232.6k | Reduced -436.1k |
| COLONY GROUP LLC 0.00% of their portfolio | 93.2k $229.0k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 93.0k $228.7k | Added +15.3k |
| Invesco Ltd. 0.00% of their portfolio | 92.2k $226.7k | Added +16.0k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 91.2k $224.5k | Unchanged |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 85.4k $210.1k | Added +2.1k |
| OLD NATIONAL BANCORP /IN/ 0.01% of their portfolio | 84.1k $206.8k | Unchanged |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 78.8k $194.0k | Added +300 |
| NWF Advisory Services Inc. 0.04% of their portfolio | 78.5k $193.2k | Unchanged |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 78.0k $192.0k | Added +19.7k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 77.2k $189.6k | Reduced -87 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 74.1k $182.3k | Added +6.1k |
| GSA CAPITAL PARTNERS LLP 0.02% of their portfolio | 65.3k $161.0k | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 64.6k $160.5k | Reduced -2.0k |
| Laird Norton Wetherby Wealth Management, LLC 0.01% of their portfolio | 64.4k $158.3k | Reduced -456 |
| Whitegate Investment Counselors, Inc. 0.05% of their portfolio | 64.0k $157.6k | Unchanged |
| Joel Isaacson & Co., LLC 0.01% of their portfolio | 63.0k $155.0k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 62.9k $154.8k | Reduced -48.2k |
| CITIGROUP INC 0.00% of their portfolio | 57.4k $141.1k | Added +52.9k |
| FIRST MANHATTAN CO. LLC. 0.00% of their portfolio | 57.0k $140.2k | Reduced -5.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 54.4k $133.8k | Added +7.6k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 50.4k $123.9k | Added +840 |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 49.9k $122.7k | Reduced -1.5k |
| Belpointe Asset Management LLC 0.01% of their portfolio | 47.2k $116.1k | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 45.5k $111.8k | Reduced -1.7m |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 45.0k $110.8k | Reduced -26.8k |
| Quantbot Technologies LP 0.01% of their portfolio | 42.5k $104.5k | Added +14.6k |
| SHUFRO ROSE & CO LLC 0.01% of their portfolio | 38.5k $94.7k | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 36.7k $90.4k | Unchanged |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 31.6k $77.7k | Reduced -52.0k |
| Spouting Rock Asset Management, LLC 0.03% of their portfolio | 30.5k $75.0k | New |