Arcus Biosciences RCUS Institutional Ownership

NYSE RCUS

$19.04 -4.71 (-19.83%)

As of: Oct 21, 2026 · 3:59 PM EDT

Institutions by Trading Activity

232 Institutions

Increased 134 57.8%

Unchanged 35 15.1%

Reduced 63 27.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

96.53%

▲+1.63 pp QoQ

Shares Held by Institutions

122.59Mn

of 127.00Mn outstanding

▲+2.93% QoQ

Shares Outstanding

127.00Mn

4.41Mn held outside 13F filers

Institutional Investors

232

filed 13F for Jun 2026

▲+22 vs prior quarter

Net Shares Added (QoQ)

+3.49Mn

accumulated since last quarter

Value of Holdings

$2.91Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Arcus Biosciences, Inc. (NYSE:RCUS) appeared in the 13F filings of 232 institutional investors for the quarter ended June 30, 2026.

Their combined stake equaled 96.53% of outstanding shares in Q2 2026, up from 94.90% in Q1 2026.
Total shares held in Arcus Biosciences rose 2.93% versus Q1 2026, while the number of holders rose 26.78% versus Q2 2025.
Of these 232 holders, 134 added to their positions, 63 reduced their stakes and 35 left their positions unchanged.
Institutional investors held 122.59Mn shares of Arcus Biosciences in total at the end of Q2 2026, up 3.49Mn from the prior quarter and up 24.92Mn from a year earlier.
As of June 30, 2026, the biggest holder of Arcus Biosciences was Gilead Sciences, Inc. with 31.42Mn shares, or 24.74% of shares outstanding.
Among existing holders, the largest additions to Arcus Biosciences in Q2 2026 came from FMR LLC (+2.88Mn shares), Citadel Advisors LLC (+1.81Mn shares), BlackRock, Inc. (+1.19Mn shares), Soleus Capital Management, L.P. (+716.75K shares) and State Street Corp (+616.58K shares).
Holders that trimmed the most shares of Arcus Biosciences in Q2 2026 while keeping a position were Marshall Wace, LLP (-1.82Mn shares), Woodline Partners LP (-770K shares), Siren, L.L.C. (-586.65K shares), Logos Global Management LP (-550K shares) and Samlyn Capital, LLC (-361.23K shares).
Arcus Biosciences' 10 largest institutional shareholders as of Q2 2026 were Gilead Sciences, Inc. (31.42Mn shares), BlackRock, Inc. (16.42Mn shares), State Street Corp (6.03Mn shares), Wellington Management Group LLP (5.9Mn shares), Montanova Capital, LLC (4.78Mn shares), Vanguard Portfolio Management LLC (4.48Mn shares), FMR LLC (4.05Mn shares), Vanguard Capital Management LLC (3.89Mn shares), Citadel Advisors LLC (3.14Mn shares) and Woodline Partners LP (3.01Mn shares), per Business Quant data.

Form 13F Holdings

232 Institutional Holders

Report period 30 Jun, 2026

Total shares held 122.59Mn

Of outstanding 96.53%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Gilead Sciences, Inc.	0000882095	31,424,760	24.74%	0	0.00%	$968.83Mn
2	BlackRock, Inc.	0002012383	16,416,249	12.93%	▲1,189,774	+7.81%	$506.11Mn
3	State Street Corp	0000093751	6,029,484	4.75%	▲616,583	+11.39%	$185.89Mn
4	WELLINGTON MANAGEMENT GROUP LLP	0000902219	5,895,448	4.64%	▼194,068	-3.19%	$181.76Mn
5	MONTANOVA CAPITAL, LLC	0001569064	4,776,423	3.76%	▼254,570	-5.06%	$147.26Mn
6	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	4,475,528	3.52%	▲203,472	+4.76%	$137.98Mn
7	FMR LLC	0000315066	4,049,757	3.19%	▲2,884,505	+247.54%	$124.85Mn
8	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,888,346	3.06%	▲31,621	+0.82%	$119.88Mn
9	CITADEL ADVISORS LLC	0001423053	3,135,057	2.47%	▲1,805,122	+135.73%	$96.65Mn
10	Woodline Partners LP	0001784547	3,007,798	2.37%	▼770,000	-20.38%	$92.73Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,448,749	1.93%	▲196,382	+8.72%	$75.51Mn
12	Siren, L.L.C.	0002005245	2,420,430	1.91%	▼586,647	-19.51%	$74.62Mn
13	Fisher Asset Management, LLC	0000850529	2,139,396	1.68%	▼51,008	-2.33%	$65.96Mn
14	MARSHALL WACE, LLP	0001318757	1,945,088	1.53%	▼1,816,349	-48.29%	$59.97Mn
15	SAMLYN CAPITAL, LLC	0001421097	1,547,182	1.22%	▼361,230	-18.93%	$47.70Mn
16	DIMENSIONAL FUND ADVISORS LP	0000354204	1,434,320	1.13%	▲8,097	+0.57%	$44.22Mn
17	BNP Paribas Asset Management Holding S.A.	0001520354	1,419,533	1.12%	▼235,221	-14.21%	$43.76Mn
18	Goldman Sachs Group Inc	0000886982	1,387,566	1.09%	▲387,780	+38.79%	$42.78Mn
19	Soleus Capital Management, L.P.	0001802630	1,168,738	0.92%	▲716,755	+158.58%	$36.03Mn
20	Sofinnova Investments, Inc.	0001631134	945,690	0.74%	▲22,604	+2.45%	$29.16Mn

Showing 1 to 20 of 232 holders