CERS Institutional Ownership
Who owns Cerus Corp and what the big funds did with it last quarter, from every SEC 13F filing. 187 funds reported holding CERS at Jun 30, 2026, together owning 74.8% of the company.
- ▲107 buying vs 69 selling
- ●Held by funds -0.5 pts
- ▲Funds holding +17
- ▲Superinvestors: 3 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 187 | 170 | +10.0% |
| In funds' top 10 | 0 | 0 | – |
| 13F shares | 151M | 152M | −0.6% |
| Held by funds | 74.8% | 75.3% | −0.5 pts |
| New positions | 36 | 22 | +63.6% |
| Increased | 71 | 57 | +24.6% |
| Reduced | 53 | 55 | −3.6% |
| Sold out | 16 | 14 | +14.3% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in CERS
All superinvestors →
Who owns CERS
share of fund held shares- Index and passive funds32.4%
- Active managers and hedge funds58.2%
- Banks and brokers9.2%
- Pensions, insurers and other0.2%
The top 10 holders own 55.4% of all CERS shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
30 funds changed their position- Mackenzie Financial CorpAdded+3.5M sh
- Wasatch Advisors LPTrimmed−816K sh
- Sumitomo Mitsui Trust Group, Inc.Added+353K sh
- Assenagon Asset Management S.A.Trimmed−315K sh
- Levin Capital Strategies, L.P.Added+288K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 11.02% | 22.2M | $64.9M | +640K |
| 2 | ARK Investment Management LLC | 8.90% | 17.9M | $52.4M | −1.2M |
| 3 | Vanguard Capital Management LLC | 4.25% | 8.6M | $25M | +432K |
| 4 | Baker Bros. Advisors LP | 3.17% | 6.4M | $18.7M | −3.6M |
| 5 | D. E. Shaw & Co., Inc. | 2.72% | 5.5M | $16M | +1.8M |
| 6 | Geode Capital Management, LLC | 2.54% | 5.1M | $15M | +482K |
| 7 | State Street Corp | 2.36% | 4.8M | $13.9M | +539K |
| 8 | Senvest Management, LLC | 2.29% | 4.6M | $13.5M | +500K |
| 9 | Acadian Asset Management LLC | 2.12% | 4.3M | $12.5M | +561K |
| 10 | Sumitomo Mitsui Trust Group, Inc. | 2.05% | 4.1M | $12.1M | −377K |
- Mackenzie Financial Corp+3M sh+$8.6M
- D. E. Shaw & Co., Inc.+1.8M sh+$5.1M
- Algert Global LLC+1.4M sh+$4M
- Topline Capital Management, LLC+1.1M sh+$3.1M
- Vanguard Portfolio Management LLC+850K sh+$2.5M
- Panagora Asset Management Inc+789K sh+$2.3M
- Franklin Resources Inc+751K sh+$2.2M
- Two Sigma Investments, LP+740K sh+$2.2M
- Soleus Capital Management, L.P.−8.3M sh−$24.1M
- Baker Bros. Advisors LP−3.6M sh−$10.5M
- Wasatch Advisors LP−1.9M sh−$5.5M
- ARK Investment Management LLC−1.2M sh−$3.6M
- UBS Group AG−1.1M sh−$3.2M
- Assenagon Asset Management S.A.−621K sh−$1.8M
- Driehaus Capital Management LLC−537K sh−$1.6M
- Susquehanna International Group, LLP−503K sh−$1.5M
CERS institutional ownership FAQ
Who owns the most CERS stock?
In Q2 2026 13F filings the largest holder of CERS was BlackRock, Inc., followed by ARK Investment Management LLC and Vanguard Capital Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of CERS is owned by institutions?
Funds that file 13F reports held 74.8% of CERS's shares at Jun 30, 2026, compared with 75.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying CERS?
In Q2 2026, 107 funds bought CERS (36 of them new positions) and 69 sold (16 sold out completely). Among well known investors, 3 added and 2 cut. Our fund sentiment for CERS is bullish.
What is CERS's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this CERS ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.