How many institutional investors hold RCUS?

2 tracked institutional investors disclosed a position in RCUS (ARCUS BIOSCIENCES INC) in their most recent 13F filing.

Who is the largest institutional holder of RCUS?

Ken Griffin, Citadel Advisors, holds the largest disclosed position in RCUS, valued at $97M.

Where does this RCUS ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

RCUS — ARCUS BIOSCIENCES INC

Name: ARCUS BIOSCIENCES INC (RCUS) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying RCUS?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence

Institutional Conviction

Net distribution · 2 buying vs 2 selling last quarter

Macro Tailwind

Macro conditions are mixed for this sector

Why? — Evidence & Confidence ▾

Of 4 tracked investors who changed their RCUS position last quarter, 2 bought and 2 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).

Supporting evidence

+2 tracked investors added or increased positions last quarter (Izzy Englander, Ken Griffin)
+2 tracked investors reported holding RCUS at their latest filing
+Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource

Contradicting evidence — always shown

−2 tracked investors reduced or exited last quarter (0 reduced, 2 sold out)
−13F data is disclosed up to 45 days after quarter end — positions may have changed since

Know the limits

· 13F disclosure lag (up to 45 days)
· Tracked investors are a sample, not the whole market
· Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.

About ARCUS BIOSCIENCES INC (RCUS)

ARCUS BIOSCIENCES INC (RCUS) appears in the most recent 13F filings of 2 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $97M. Across recent filings, tracked investors recorded 5 new positions, 11 increased, 8 reduced, and 5 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in RCUS

/100

Mixed Activity

Added / Increased16

Reduced8

Exited5

BearishBullish

Crowded Trade Score™

How many top investors track RCUS

/100

Undiscovered

2investors

Only 2 tracked investors report this position.

UndiscoveredCrowded

151015+

RCUS Ownership Composition

How ARCUS BIOSCIENCES INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Multi-Strategy / Quant

100% of tracked value

Institutions

tracked investors

Total Reported

$101.6M

combined 13F value

Multi-Strategy / Quant100.0%

Multi-Strategy / Quant(2)

100.0%

Tracked investors currently reporting RCUS

2 tracked investors have since exited this position — listed separately below.

Investor	Firm	Shares	Market value	% of portfolio	As of
Ken Griffin	Citadel Advisors	3.2M	$97.5M	0.01%	Jun 30, 2026
Izzy Englander	Millennium Management	133.1K	$4.1M	0.00%	Jun 30, 2026

Ken GriffinJun 30, 2026
Citadel Advisors
Shares
3.2M
Value
$97.5M
% Portfolio
0.01%
Izzy EnglanderJun 30, 2026
Millennium Management
Shares
133.1K
Value
$4.1M
% Portfolio
0.00%

Previously held RCUS

These investors reported RCUS in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.

Investor	Firm	Last reported shares	Value then	Last held
Steve Cohen	Point72 Asset Management	129.3K	$2.8M	Mar 31, 2026
Paul Tudor Jones	Tudor Investment Corp	216.3K	$4.7M	Mar 31, 2026

Recent activity

Investor	Action	Δ %	Current value	Filing date
Izzy Englander	Increased	8.40%	$3.7M	Nov 14, 2024
Izzy Englander	Increased	277.14%	$13.8M	Feb 14, 2025
Izzy Englander	Increased	29.24%	$9.4M	May 15, 2025
Izzy Englander	Reduced	-34.70%	$6.3M	Aug 14, 2025
Izzy Englander	Reduced	-73.40%	$4M	Feb 17, 2026
Izzy Englander	Sold	-100.00%	$0	May 15, 2026
Izzy Englander	New	—	$4.1M	Aug 14, 2026
Ken Griffin	Reduced	-28.07%	$5.5M	Nov 14, 2024
Ken Griffin	Increased	5.54%	$3.5M	May 15, 2025
Ken Griffin	Increased	63.15%	$5.9M	Aug 14, 2025
Ken Griffin	Sold	-100.00%	$0	Nov 14, 2025
Ken Griffin	Increased	122.63%	$97.5M	Aug 14, 2026
Steve Cohen	Increased	32.89%	$37.3M	Nov 14, 2024
Steve Cohen	Reduced	-18.09%	$29.7M	Feb 14, 2025
Steve Cohen	Increased	43.62%	$22.5M	Jul 21, 2025
Steve Cohen	Increased	108.11%	$48.6M	Aug 14, 2025
Steve Cohen	Reduced	-27.39%	$58.9M	Nov 14, 2025
Steve Cohen	Reduced	-24.29%	$78.2M	Feb 17, 2026
Steve Cohen	Reduced	-96.06%	$2.8M	May 15, 2026
Steve Cohen	Sold	-100.00%	$0	Aug 14, 2026
Paul Tudor Jones	New	—	$698K	Nov 14, 2024
Paul Tudor Jones	Reduced	-5.88%	$639.8K	Feb 14, 2025
Paul Tudor Jones	Increased	24.43%	$419.7K	May 15, 2025
Paul Tudor Jones	Sold	-100.00%	$0	Aug 14, 2025
Paul Tudor Jones	Increased	3.68%	$4.7M	May 15, 2026
Paul Tudor Jones	Sold	-100.00%	$0	Aug 14, 2026
Steve Cohen	New	—	$27.9M	Sep 16, 2024
Ken Griffin	New	—	$7.6M	Aug 14, 2024
Izzy Englander	New	—	$944K	May 15, 2024

Izzy Englander
Increased
$3.7M(8.40%)Nov 14, 2024
Izzy Englander
Increased
$13.8M(277.14%)Feb 14, 2025
Izzy Englander
Increased
$9.4M(29.24%)May 15, 2025
Izzy Englander
Reduced
$6.3M(-34.70%)Aug 14, 2025
Izzy Englander
Reduced
$4M(-73.40%)Feb 17, 2026
Izzy Englander
Sold
$0(-100.00%)May 15, 2026
Izzy Englander
New
$4.1MAug 14, 2026
Ken Griffin
Reduced
$5.5M(-28.07%)Nov 14, 2024
Ken Griffin
Increased
$3.5M(5.54%)May 15, 2025
Ken Griffin
Increased
$5.9M(63.15%)Aug 14, 2025
Ken Griffin
Sold
$0(-100.00%)Nov 14, 2025
Ken Griffin
Increased
$97.5M(122.63%)Aug 14, 2026
Steve Cohen
Increased
$37.3M(32.89%)Nov 14, 2024
Steve Cohen
Reduced
$29.7M(-18.09%)Feb 14, 2025
Steve Cohen
Increased
$22.5M(43.62%)Jul 21, 2025
Steve Cohen
Increased
$48.6M(108.11%)Aug 14, 2025
Steve Cohen
Reduced
$58.9M(-27.39%)Nov 14, 2025
Steve Cohen
Reduced
$78.2M(-24.29%)Feb 17, 2026
Steve Cohen
Reduced
$2.8M(-96.06%)May 15, 2026
Steve Cohen
Sold
$0(-100.00%)Aug 14, 2026
Paul Tudor Jones
New
$698KNov 14, 2024
Paul Tudor Jones
Reduced
$639.8K(-5.88%)Feb 14, 2025
Paul Tudor Jones
Increased
$419.7K(24.43%)May 15, 2025
Paul Tudor Jones
Sold
$0(-100.00%)Aug 14, 2025
Paul Tudor Jones
Increased
$4.7M(3.68%)May 15, 2026
Paul Tudor Jones
Sold
$0(-100.00%)Aug 14, 2026
Steve Cohen
New
$27.9MSep 16, 2024
Ken Griffin
New
$7.6MAug 14, 2024
Izzy Englander
New
$944KMay 15, 2024

Frequently asked questions

How many institutional investors hold RCUS?: 2 tracked institutional investors disclosed a position in RCUS (ARCUS BIOSCIENCES INC) in their most recent 13F filing.
Who is the largest institutional holder of RCUS?: Ken Griffin, Citadel Advisors, holds the largest disclosed position in RCUS, valued at $97M.
Did institutional ownership of RCUS increase or decrease?: Across recent 13F filings, tracked investors recorded 5 new positions, 11 increased, 8 reduced, and 5 fully exited RCUS.
Where does this RCUS ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.