CERS Cerus Corporation

NASDAQ
$2.49

Cerus Corporation (CERS) Institutional Ownership

What the institutions did with CERS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
202
filed both this quarter and last
Managers holding
185
+18 on the quarter
Buyers
107
35 opened new
Sellers
69
17 sold out entirely
Buyer share
60.8%
of managers who traded it
Breadth
+21.6
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 22.2M 14.7%
ARK Investment Management LLC 17.9M 11.9%
VANGUARD CAPITAL MANAGEMENT LLC 8.6M 5.7%
BAKER BROS. ADVISORS LP 6.4M 4.2%
D. E. Shaw & Co., Inc. 5.5M 3.6%
GEODE CAPITAL MANAGEMENT, LLC 5.1M 3.4%
STATE STREET CORP 4.8M 3.2%
Senvest Management, LLC 4.6M 3.1%
ACADIAN ASSET MANAGEMENT LLC 4.3M 2.8%
Sumitomo Mitsui Trust Group, Inc. 4.1M 2.7%
Amova Asset Management Americas, Inc. 4.1M 2.7%
SILVERCREST ASSET MANAGEMENT GROUP LLC 4.1M 2.7%
TWO SIGMA INVESTMENTS, LP 3.5M 2.3%
SILVERARC CAPITAL MANAGEMENT, LLC 3.5M 2.3%
WASATCH ADVISORS LP 3.4M 2.2%
MACKENZIE FINANCIAL CORP 3.0M 2.0%
VANGUARD PORTFOLIO MANAGEMENT LLC 2.8M 1.8%
Soleus Capital Management, L.P. 2.5M 1.7%
IEQ CAPITAL, LLC 2.4M 1.6%
GOLDMAN SACHS GROUP INC 2.3M 1.5%
AQR CAPITAL MANAGEMENT LLC 1.9M 1.2%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.7M 1.2%
NORTHERN TRUST CORP 1.7M 1.1%
ALGERT GLOBAL LLC 1.5M 1.0%
VANGUARD FIDUCIARY TRUST CO 1.4M 0.9%

Largest changes

Manager Action Previous Current Change
Soleus Capital Management, L.P. Reduced 10.8M 2.5M -8.3M
BAKER BROS. ADVISORS LP Reduced 10.0M 6.4M -3.6M
MACKENZIE FINANCIAL CORP Increased 40.7K 3.0M +3.0M
WASATCH ADVISORS LP Reduced 5.3M 3.4M -1.9M
D. E. Shaw & Co., Inc. Increased 3.7M 5.5M +1.8M
ALGERT GLOBAL LLC Increased 118.9K 1.5M +1.4M
ARK Investment Management LLC Reduced 19.2M 17.9M -1.2M
UBS Group AG Reduced 2.1M 1.0M -1.1M
Topline Capital Management, LLC New 0 1.1M +1.1M
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 1.9M 2.8M +849.9K
ALLIANCEBERNSTEIN L.P. Increased 187.1K 1.0M +842.1K
PANAGORA ASSET MANAGEMENT INC Increased 305.2K 1.1M +788.6K
FRANKLIN RESOURCES INC Increased 148.7K 899.4K +750.7K
TWO SIGMA INVESTMENTS, LP Increased 2.7M 3.5M +739.6K
CITADEL ADVISORS LLC New 0 736.7K +736.7K
AMERIPRISE FINANCIAL INC Increased 454.1K 1.2M +705.5K
CITIGROUP INC Increased 31.6K 678.6K +647.0K
BlackRock, Inc. Increased 21.6M 22.2M +639.7K
Assenagon Asset Management S.A. Reduced 1.3M 630.1K -621.0K
ACADIAN ASSET MANAGEMENT LLC Increased 3.7M 4.3M +560.6K
STATE STREET CORP Increased 4.2M 4.8M +539.1K
Driehaus Capital Management LLC Reduced 961.6K 424.6K -537.0K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced 782.6K 279.4K -503.2K
Senvest Management, LLC Increased 4.1M 4.6M +500.0K
GEODE CAPITAL MANAGEMENT, LLC Increased 4.6M 5.1M +481.6K
GOLDMAN SACHS GROUP INC Reduced 2.8M 2.3M -450.8K
VANGUARD CAPITAL MANAGEMENT LLC Increased 8.1M 8.6M +431.6K
Informed Momentum Co LLC New 0 405.1K +405.1K
Amova Asset Management Americas, Inc. Reduced 4.5M 4.1M -384.1K
Sumitomo Mitsui Trust Group, Inc. Reduced 4.5M 4.1M -377.1K
BANK OF AMERICA CORP /DE/ Reduced 1.2M 868.5K -349.9K
MILLENNIUM MANAGEMENT LLC Reduced 430.2K 108.5K -321.7K
SILVERARC CAPITAL MANAGEMENT, LLC Increased 3.2M 3.5M +296.2K
MORGAN STANLEY Increased 826.0K 1.1M +292.3K
BOOTHBAY FUND MANAGEMENT, LLC New 0 247.7K +247.7K
Susquehanna Portfolio Strategies, LLC New 0 244.7K +244.7K
SEI INVESTMENTS CO Increased 34.7K 274.6K +240.0K
LAZARD ASSET MANAGEMENT LLC Sold Out 237.7K 0 -237.7K
AQR CAPITAL MANAGEMENT LLC Reduced 2.1M 1.9M -235.0K
Point72 Asset Management, L.P. New 0 228.2K +228.2K
Connor, Clark & Lunn Investment Management Ltd. Reduced 686.9K 469.9K -217.0K
NORTHERN TRUST CORP Increased 1.5M 1.7M +212.9K
JACOBS LEVY EQUITY MANAGEMENT, INC New 0 210.1K +210.1K
FMR LLC Increased 1.2M 1.4M +206.9K
LEVIN CAPITAL STRATEGIES, L.P. Reduced 253.1K 48.6K -204.4K
Russell Investments Group, Ltd. Increased 466.0K 665.2K +199.2K
SILVERCREST ASSET MANAGEMENT GROUP LLC Reduced 4.2M 4.1M -164.2K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP New 0 153.7K +153.7K
HSBC HOLDINGS PLC Reduced 231.4K 98.6K -132.7K
XTX Topco Ltd Reduced 210.3K 81.1K -129.2K
Integrated Quantitative Investments LLC New 0 127.3K +127.3K
VANGUARD FIDUCIARY TRUST CO Increased 1.3M 1.4M +123.2K
GSA CAPITAL PARTNERS LLP Sold Out 117.6K 0 -117.6K
EntryPoint Capital, LLC Increased 39.9K 153.8K +113.9K
Centiva Capital, LP New 0 109.8K +109.8K
WELLS FARGO & COMPANY/MN Increased 94.6K 203.3K +108.7K
VOYA INVESTMENT MANAGEMENT LLC Reduced 1.1M 998.8K -108.5K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Increased 1.6M 1.7M +103.5K
BRIDGEWAY CAPITAL MANAGEMENT, LLC Reduced 225.0K 125.0K -100.0K
RENAISSANCE TECHNOLOGIES LLC Increased 578.9K 671.7K +92.8K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.