Cerus Corporation· CERS

🇺🇸 US · SmallBroad USNASDAQ

Healthcare Medical - Devices Website

Price: $2.65
Day: -0.38%
Mkt Cap: $534.04M
52W Range: $1.31 – $3.47
Volume: 3.57M
Beta: 1.80

D55D FrameworkQuarterly Data

Holdings Analysis

Insider activity, institutional flows, and fund ownership.

Smart Money: 3.7 / 5 (Bullish), from 3 of 3 components
Institutions Q2 2026: 191 institutions hold; 108 added, 53 reduced
Insiders Q3 2026: no purchases, 2 sales ($142.2K)

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Cerus Corporation

CERS|Healthcare|Medical - Devices

Current price: $3

Smart Money

Dimension 5 of 5

Insider selling pace · Q3 2026

0.1x

quarter in progress, filings still arriving

Seller breadth · Q3 2026

2 sellers

vs 3.2 avg per quarter

Institutional net breadth · Q2 2026

+73

144 adding vs 71 reducing

Institutional ownership · Q2 2026

75.8%

191 institutions

Insider Selling Pace

Each quarter's selling vs this stock's own trailing 6-quarter average

Light <0.5xRoutineElevated >1.5xHeavy >3xBuying

Institutional Positions

Institutions adding above the line, reducing below, net as a line

NewIncreasedReducedClosedNet

Largest Institutional Holders, Q2 2026

By reported market value, and how each moved in the quarter

Holder

Change

BLACKROCK, INC.

22.2M

-0.3%

ARK INVESTMENT MANAGEMENT LLC

17.9M

-9.4%

IMC-CHICAGO, LLC

15.2K

+21.5%

VANGUARD CAPITAL MANAGEMENT LLC

8.6M

+1.9%

BAKER BROS. ADVISORS LP

6.4M

-38.1%

D. E. SHAW & CO., INC.

5.5M

+42.3%

ETF & Fund Activity, Q2 2026

How the covering funds split between buying, holding and selling

43 buying70 unchanged20 selling

133 funds held CERS in Q2 2026, holding 61.4M shares between them, up 4.4% on the quarter.

Largest fund holders

BRIDGEWAY FUNDS INC125.0K sh

EMPOWER FUNDS, INC.109.6K sh

PUTNAM ASSET ALLOCATION FUNDS101.8K sh

Notable Insider Transactions, Q3 2026

Largest open-market purchases and sales by value in the last eight quarters

Sale · Mar 12

Greenman William Mariner

$742.0K

Sale · Jun 30

Greenman William Mariner

$299.9K

Sale · Mar 12

Jayaraman Vivek K

$273.8K

Insider transactions from SEC Form 4 filings; institutional holdings from quarterly 13F filings, which are reported with a lag and can overlap between filers. 13F: quarterly institutional holdings report · ETF: Exchange-Traded Fund

See the complete picture

The full 5D Framework: Business Quality · Peer Comparison · Valuation · Analyst Sentiment · Smart Money

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Generated September 19, 2026

For educational purposes only. Not financial advice. Data may be delayed or incomplete.

Smart Money Sentiment

CERS Smart Money Sentiment Score

A weighted 1-5 sentiment score across three smart money signals.

Smart Money

3.7/5

Bullish

Weighted across 3 components

Component Breakdown (3 of 3 available)

Insider Activity

40% weight

Institutional Flow

50% weight

+60

Fund Flow

10% weight

+60

Overall Smart Money sentiment of 3.7/5 (Bullish) based on a weighted combination of 3 components. Insider activity uses a relative-baseline comparison against the stock's own history; institutional flow tracks position momentum and 13F share changes; fund flow measures ETF / mutual-fund buying vs selling. Higher scores indicate stronger bullish sentiment from professional investors.Last updated September 18, 2026.

Insider Trading Activity

Insider trading analysis comparing the latest quarter against the stock's own historical baseline.

Insider Selling Pace for CERS

Each quarter's selling vs the stock's own trailing 6-quarter average; 1.0x is typical for this stock. Green triangles mark quarters with insider buying.

Neutral

Routine insider selling in Q3 2026

2 sales totaling $142.2K (46.7K shares)

Share volume is well below the historical pace (0.1x average), insiders are holding more

Buying seen in 6 of 15 quarters

0.1x

Selling pace

quarter in progress, filings still arriving

0.23%

Stake sold

of active insiders' holdings

2 sellers

Seller breadth

vs 2.7 avg per quarter

Q3 2025

Last insider purchase

buying in 6 of 16 quarters

Notable Recent Transactions, CERS

Top 8 highest-value insider trades from the last 8 quarters

Greenman William Mariner

CEO

Sell

447,757 shares at $1.66

≈8.2% of their stake at the time

Mar 12, 2026$742.02K

Greenman William Mariner

CEO

Sell

101,919 shares at $2.94

≈2.0% of their stake at the time

Jun 30, 2026$299.94K

Jayaraman Vivek K

COO

Sell

165,200 shares at $1.66

≈8.6% of their stake at the time

Mar 12, 2026$273.77K

Green Kevin Dennis

CFO

Sell

127,544 shares at $1.66

≈10.9% of their stake at the time

Mar 12, 2026$211.37K

Jensen Chrystal

General Counsel

Sell

113,008 shares at $1.66

≈10.7% of their stake at the time

Mar 12, 2025$187.28K

Greenman William Mariner

CEO

Sell

122,827 shares at $1.45

≈2.9% of their stake at the time

Mar 14, 2025$178.10K

Benjamin Richard J

Chief Medical Officer

Sell

101,740 shares at $1.66

≈11.6% of their stake at the time

Mar 12, 2026$168.60K

Greenman William Mariner

CEO

Sell

78,187 shares at $2.01

≈1.4% of their stake at the time

Mar 6, 2026$156.80K

Institutional Ownership Analysis

Institutional ownership analysis with position momentum, 13F share flow, and ownership percentage trends.

Institutional Positions for CERS

Institutions adding (new + increased) above zero, reducing (reduced + closed) below, net as a line

New Increased Reduced Closed Net (adding − reducing)

Very Bullish

Institutions accumulating in Q2 2026

75.8% institutional ownership

Strong accumulation: 144 institutions adding vs 71 reducing positions

13F share count essentially flat

Momentum improving from prior quarter

+73

Net breadth

144 adding vs 71 reducing

Strong accumulation

2.03

Add / reduce ratio

in Q2 2026

+18

New − closed

36 initiated, 18 exited

6 of 10

Top holders adding

largest holders with a known change

Position Changes

Q2 2026: how are institutions adjusting their positions?

+144 growing-71 shrinkingNet: +73

108

New (36)

Increased (108)

Reduced (53)

Closed (18)

Top Institutional Holders, CERS

Largest 8 institutional positions by ownership percentage as of Q2 2026

BLACKROCK, INC.

22.2M

$64.9M

Ownership

11.08%

-0.3%

ARK INVESTMENT MANAGEMENT LLC

17.9M

$52.4M

Ownership

8.94%

-9.4%

VANGUARD CAPITAL MANAGEMENT LLC

8.6M

$25.0M

Ownership

4.27%

+1.9%

BAKER BROS. ADVISORS LP

6.4M

$18.7M

Ownership

3.19%

-38.1%

D. E. SHAW & CO., INC.

5.5M

$16.0M

Ownership

2.74%

+42.3%

GEODE CAPITAL MANAGEMENT, LLC

5.1M

$15.0M

Ownership

2.55%

+6.8%

STATE STREET CORP

4.8M

$13.9M

Ownership

2.37%

+9.2%

SENVEST MANAGEMENT, LLC

4.6M

$13.5M

Ownership

2.30%

+8.6%

ETF and Mutual Fund Holdings

ETF and mutual fund activity breakdown showing buying vs selling funds, top fund holders, and detailed holdings.

Fund Activity

Q2 2026: 133 ETFs and mutual funds reporting

43 buying20 sellingNet: +23

Buying (43)

Unchanged (70)

Selling (20)

In total, funds bought 5.3M shares and sold 2.6M this quarter. Each fund counts once in the bar above, whatever the size of its move.

Very Bullish

Funds accumulating in Q2 2026

133 ETFs and mutual funds reporting

43 funds buying vs 20 selling

Top Fund Holders, CERS

Largest 8 ETF and mutual fund positions by shares held, each fund's latest filing

BRIDGEWAY FUNDS INC

125.0K

Weight

7.21%

Jun 30, 2026Decreased

EMPOWER FUNDS, INC.

109.6K

Weight

0.01%

Jun 30, 2026No change

PUTNAM ASSET ALLOCATION FUNDS

101.8K

Weight

0.04%

Jun 30, 2026Increased

VANGUARD VALLEY FORGE FUNDS

99.4K

Weight

0.04%

Jun 30, 2026Decreased

GOLDMAN SACHS VARIABLE INSURANCE TRUST

94.2K

Weight

0.38%

Jun 30, 2026No change

VANGUARD INSTITUTIONAL INDEX FUNDS

81.9K

Weight

0.06%

Jun 30, 2026No change

SEI INSTITUTIONAL MANAGED TRUST

76.4K

Weight

0.08%

Jun 30, 2026No change

PACIFIC SELECT FUND

75.2K

Weight

0.01%

Jun 30, 2026Increased

Cerus Corporation· CERS

Holdings Analysis

Insider Trading Activity

1.3Transaction History157Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings113Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights

Search stocks

Holdings Analysis

Insider Trading Activity

1.3Transaction History157Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings113Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights