Ticker · CUSIP 157085101

CERS

CERUS CORP

Healthcare·Medical Devices

···Share

Holders (tracked)

Combined shares

28,584,898

Combined value

$58.89M

Last close

$2.08

Quarter

2025Q4

Price is +1.0% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$2.08+0.78 (+60.00%)H $2.74 · L $1.16 · Avg Vol 1.4M

Tracked holders · last 8 quarters

+1 vs previous quarter over the last 8.

SEC event timeline

16 events

AQR Capital Management trimmed2026-02-17
−450,832 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+45,422 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+54,319 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+17,770 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+712,678 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−2,502,368 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+23,453 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−341,500 shares · 2025Q4
Position
Cathie Wood (ARK Invest) trimmed2026-02-11
−649,984 shares · 2025Q4
Position
D.E. Shaw & Co. added2025-11-14
+66,948 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+163,535 shares · 2025Q3
Position
T. Rowe Price trimmed2025-11-14
−180,129 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+252,262 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+519,301 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+74,000 shares · 2025Q3
Position
Cathie Wood (ARK Invest) trimmed2025-11-12
−357,416 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for CERS →

Follow-the-investor returns

If you'd copied each holder of CERS…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
AQR Capital Management	2016Q2	$1.45	+43.8%	$4.2M
Renaissance Technologies	2016Q1	$1.75	+19.1%	$1.0M
Izzy Englander (Millennium Mgmt)	2016Q1	$1.83	+13.4%	$2.0M
Two Sigma Investments	2016Q3	$1.89	+10.1%	$3.9M
Ken Griffin (Citadel Advisors)	2016Q2	$2.06	+1.2%	$155K
Ken Griffin (Citadel Advisors)	2016Q2	$2.06	+1.2%	$155K
Ken Griffin (Citadel Advisors)	2016Q2	$2.06	+1.2%	$155K
T. Rowe Price	2016Q1	$3.36	-38.0%	$231K
Steve Cohen (Point72)	2017Q1	$4.05	-48.6%	$49K
D.E. Shaw & Co.	2016Q1	$4.21	-50.6%	$8.1M
Cathie Wood (ARK Invest)	2016Q4	$4.27	-51.3%	$37.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions1

Steve Cohen (Point72)
+23,453
$48K

Added to4

Two Sigma Investments
+712,678
$1.5M
D.E. Shaw & Co.
+54,319
$112K
Ken Griffin (Citadel Advisors)
+45,422
$94K
T. Rowe Price
+17,770
$37

Trimmed4

Izzy Englander (Millennium Mgmt)
−2,502,368
$5.2M
Cathie Wood (ARK Invest)
−649,984
$1.3M
AQR Capital Management
−450,832
$929K
Renaissance Technologies
−341,500
$703K

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	15	37,895,156	$697.7M	—
2022Q2	15	36,667,661	$188.2M	—
2022Q3	14	36,804,867	$132.5M	-1
2022Q4	13	34,970,265	$127.6M	-1
2023Q1	14	44,118,684	$131.0M	+1
2023Q2	13	41,800,924	$102.8M	-1
2023Q3	11	41,317,973	$66.9M	-2
2023Q4	10	40,739,063	$88.0M	-1
2024Q1	10	37,569,644	$71.0M	—
2024Q2	11	39,811,359	$70.1M	+1
2024Q3	10	25,962,086	$45.2M	-1
2024Q4	10	30,518,471	$47.0M	—
2025Q1	10	33,121,794	$46.0M	—
2025Q2	10	31,225,554	$44.0M	—
2025Q3	10	31,660,140	$50.3M	—
2025Q4	11	28,584,898	$58.9M	+1

Who owns CERS

11 super-investors · 2025Q4

Tracked stake

28.58M

Combined value

$59M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New1Added6Trim4

#	Manager	Shares	Value	% of book	Last action
1	Cathie Wood ARK Invest	18.20M	$37M	0.2%	Trim−650.0K
2	D.E. Shaw & Co.	3.87M	$8M	0.0%	Added+54.3K
3	AQR Capital Management	2.00M	$4M	0.0%	Trim−450.8K
4	Two Sigma Investments	1.86M	$4M	0.0%	Added+712.7K
5	Izzy Englander Millennium Mgmt	967.7K	$2M	0.0%	Trim−2.50M
6	Ken Griffin Citadel Advisors	945.0K	$2M	0.0%	Added+45.4K
7	Renaissance Technologies	498.0K	$1M	0.0%	Trim−341.5K
8	T. Rowe Price	111.0K	$229K	0.0%	Added+17.8K
9	Ken Griffin Citadel Advisors	74.4K	$153K	0.0%	Added+45.4K
10	Ken Griffin Citadel Advisors	31.4K	$65K	0.0%	Added+45.4K
11	Steve Cohen Point72	23.5K	$48K	0.0%	New+23.5K

Recent moves

20 transactions

ADDTwo Sigma Investments
+712,678 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+45,422 · 2025Q4
ADDD.E. Shaw & Co.
+54,319 · 2025Q4
ADDT. Rowe Price
+17,770 · 2025Q4
TRIMAQR Capital Management
−450,832 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−2,502,368 · 2025Q4
NEWSteve Cohen (Point72)
+23,453 · 2025Q4
TRIMRenaissance Technologies
−341,500 · 2025Q4
TRIMCathie Wood (ARK Invest)
−649,984 · 2025Q4
TRIMT. Rowe Price
−180,129 · 2025Q3
ADDD.E. Shaw & Co.
+66,948 · 2025Q3
ADDAQR Capital Management
+252,262 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+519,301 · 2025Q3
ADDTwo Sigma Investments
+163,535 · 2025Q3
ADDRenaissance Technologies
+74,000 · 2025Q3
TRIMCathie Wood (ARK Invest)
−357,416 · 2025Q3
TRIMTwo Sigma Investments
−11,664 · 2025Q2
TRIMIzzy Englander (Millennium Mgmt)
−271,566 · 2025Q2
TRIMD.E. Shaw & Co.
−38,627 · 2025Q2
ADDT. Rowe Price
+4,242 · 2025Q2

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