ARCUS BIOSCIENCES INC (RCUS) Institutional Ownership Changes & 13F Activity
ARCUS BIOSCIENCES INC (RCUS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Citadel Advisors Llc, Invesco Ltd., Woodline Partners Lp, T. Rowe Price Investment Management, Inc., and Logos Global Management Lp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +3,656 | +8.7% | 45,826 | $1.41M | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Buy | +1,805,122 | +135.7% | 3,135,057 | $96.65M | Q2 2026 | Sep 02, 2026 |
| Allianz Asset Management Gmbh | Buy | +82,458 | — | 82,458 | $2.54M | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Buy | +34,984 | +144.9% | 59,127 | $1.82M | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -8,366 | -7.9% | 97,410 | $3.00M | Q2 2026 | Aug 24, 2026 |
| Capstone Investment Advisors, Llc | Buy | +10,049 | — | 10,049 | $309.81K | Q2 2026 | Aug 17, 2026 |
| Invesco Ltd. | Buy | +845,233 | — | 845,233 | $26.06M | Q2 2026 | Aug 14, 2026 |
| Woodline Partners Lp | Sell | -770,000 | -20.4% | 3,007,798 | $92.73M | Q2 2026 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | Buy | +589,546 | — | 589,546 | $18.18M | Q2 2026 | Aug 14, 2026 |
| Logos Global Management Lp | Sell | -550,000 | -45.8% | 650,000 | $20.04M | Q2 2026 | Aug 14, 2026 |
| Ikarian Capital, Llc | Buy | +504,559 | — | 504,559 | $15.56M | Q2 2026 | Aug 14, 2026 |
| Baker Bros. Advisors Lp | Buy | +429,195 | +103.3% | 844,816 | $26.05M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +387,780 | +38.8% | 1,387,566 | $42.78M | Q2 2026 | Aug 14, 2026 |
| Samlyn Capital, Llc | Sell | -361,230 | -18.9% | 1,547,182 | $47.70M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +322,714 | +103.2% | 635,404 | $19.59M | Q2 2026 | Aug 14, 2026 |
| Parkman Healthcare Partners Llc | Sell | -288,008 | -23.9% | 919,266 | $28.34M | Q2 2026 | Aug 14, 2026 |
| Suvretta Capital Management, Llc | Sell | -254,570 | -5.1% | 4,776,423 | $147.26M | Q2 2026 | Aug 14, 2026 |
| Hudson Bay Capital Management Lp | Sell | -216,535 | -60.7% | 140,000 | $4.32M | Q2 2026 | Aug 14, 2026 |
| Wellington Management Group Llp | Sell | -194,068 | -3.2% | 5,895,448 | $181.76M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +189,436 | +29.3% | 835,504 | $25.76M | Q2 2026 | Aug 14, 2026 |
| Susquehanna Portfolio Strategies, Llc | Sell | -186,298 | -77.6% | 53,668 | $1.65M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -162,983 | -62.8% | 96,417 | $2.97M | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Buy | +154,264 | — | 154,264 | $4.76M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +153,813 | — | 153,813 | $4.74M | Q2 2026 | Aug 14, 2026 |
| Pfm Health Sciences, Lp | Buy | +152,129 | — | 152,129 | $4.69M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -135,883 | -94.8% | 7,488 | $230.85K | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Buy | +133,110 | — | 133,110 | $4.10M | Q2 2026 | Aug 14, 2026 |
| Odyssean, Llc | Buy | +85,497 | — | 85,497 | $2.64M | Q2 2026 | Aug 14, 2026 |
| Jacobs Levy Equity Management, Inc | Buy | +81,738 | +19.0% | 512,084 | $15.79M | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Sell | -70,987 | -36.7% | 122,574 | $3.78M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about RCUS activity
Which institutional owners are buying RCUS?
Institutional owners buying RCUS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in RCUS activity?
"Buy" means an investor increased their reported position in RCUS compared to the prior reporting period. This reflects growing exposure to ARCUS BIOSCIENCES INC (RCUS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in RCUS increasing?
Institutional interest in RCUS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related RCUS Institutional Insights
- RCUS Overview
- RCUS 13F Institutional Holders
- RCUS Top Institutional Shareholders
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- RCUS Insider Trading & SEC Form 4 Activity
- RCUS Articles
- Top Institutional Investor Stock Rankings