There is a long list of 186 institutional holders of RCUS within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of RCUS by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-RCUS table below, the initial column indicates the name of each top institutional holder of RCUS, with a link to that fund's top holdings. The next columns indicate the amount of RCUS stock held by each of the institutional holders of RCUS, followed by the RCUS position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	10,035,170	$191,672	12/31/2023
RCUS	10,035,170	$191,672	12/31/2023
FMR LLC	4,728,782	$90,320	12/31/2023
RCUS	4,728,782	$90,320	12/31/2023
Vanguard Group Inc.	4,680,716	$89,402	12/31/2023
RCUS	4,680,716	$89,402	12/31/2023
State Street Corp	4,239,577	$80,976	12/31/2023
RCUS	4,239,577	$80,976	12/31/2023
Octagon Capital Advisors LP	1,868,000	$35,679	12/31/2023
RCUS	1,868,000	$35,679	12/31/2023
Ameriprise Financial Inc.	1,634,805	$31,225	12/31/2023
RCUS	1,634,805	$31,225	12/31/2023
Invus Financial Advisors LLC	1,612,077	$30,791	12/31/2023
RCUS	1,612,077	$30,791	12/31/2023
Boxer Capital LLC	1,602,200	$30,602	12/31/2023
RCUS	1,602,200	$30,602	12/31/2023
Dimensional Fund Advisors LP	1,594,609	$30,459	12/31/2023
RCUS	1,594,609	$30,459	12/31/2023
Alliancebernstein L.P.	1,185,944	$22,652	12/31/2023
RCUS	1,185,944	$22,652	12/31/2023
Geode Capital Management LLC	1,142,169	$21,818	12/31/2023
RCUS	1,142,169	$21,818	12/31/2023
Woodline Partners LP	1,037,282	$19,812	12/31/2023
RCUS	1,037,282	$19,812	12/31/2023
Suvretta Capital Management LLC	957,304	$18,285	12/31/2023
RCUS	957,304	$18,285	12/31/2023
Decheng Capital LLC	869,790	$16,613	12/31/2023
RCUS	869,790	$16,613	12/31/2023
Point72 Asset Management L.P.	768,750	$14,683	12/31/2023
RCUS	768,750	$14,683	12/31/2023
Morgan Stanley	701,395	$13,397	12/31/2023
RCUS	701,395	$13,397	12/31/2023
Goldman Sachs Group Inc.	592,291	$11,313	12/31/2023
RCUS	592,291	$11,313	12/31/2023
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	539,727	$10,309	12/31/2023
RCUS	539,727	$10,309	12/31/2023
Northern Trust Corp	524,689	$10,022	12/31/2023
RCUS	524,689	$10,022	12/31/2023
Balyasny Asset Management LLC	515,453	$9,845	12/31/2023
RCUS	515,453	$9,845	12/31/2023
Charles Schwab Investment Management Inc.	472,182	$9,019	12/31/2023
RCUS	472,182	$9,019	12/31/2023
Ikarian Capital LLC		$7,640	12/31/2023
Call	400,000	$7,640	12/31/2023
UBS Asset Management Americas Inc.	398,666	$7,615	12/31/2023
RCUS	398,666	$7,615	12/31/2023
Bank of New York Mellon Corp	400,169	$7,555	03/31/2024
RCUS	400,169	$7,555	03/31/2024
Macquarie Group Ltd.	379,100	$7,241	12/31/2023
RCUS	379,100	$7,241	12/31/2023
Pictet Asset Management Holding SA	355,143	$6,783	12/31/2023
RCUS	355,143	$6,783	12/31/2023
Walleye Capital LLC		$6,603	12/31/2023
RCUS	343,818	$6,567	12/31/2023
Call	4,000	$76	12/31/2023
Put	2,100	$40	12/31/2023
Jane Street Group LLC		$6,528	12/31/2023
RCUS	331,490	$6,331	12/31/2023
Call	40,500	$774	12/31/2023
Put	30,200	$577	12/31/2023
Principal Financial Group Inc.	332,814	$6,357	12/31/2023
RCUS	332,814	$6,357	12/31/2023
Logos Global Management LP	325,000	$6,208	12/31/2023
RCUS	325,000	$6,208	12/31/2023
Jacobs Levy Equity Management Inc.	262,811	$5,020	12/31/2023
RCUS	262,811	$5,020	12/31/2023
Citadel Advisors LLC		$4,991	12/31/2023
RCUS	275,924	$5,270	12/31/2023
Put	33,100	$632	12/31/2023
Call	18,500	$353	12/31/2023
Rafferty Asset Management LLC	251,404	$4,802	12/31/2023
RCUS	251,404	$4,802	12/31/2023
Parkman Healthcare Partners LLC	247,664	$4,730	12/31/2023
RCUS	247,664	$4,730	12/31/2023
Eventide Asset Management LLC	240,000	$4,584	12/31/2023
RCUS	240,000	$4,584	12/31/2023
DAFNA Capital Management LLC	232,717	$4,445	12/31/2023
RCUS	232,717	$4,445	12/31/2023
AXA S.A.	232,009	$4,431	12/31/2023
RCUS	232,009	$4,431	12/31/2023
Schonfeld Strategic Advisors LLC	230,820	$4,409	12/31/2023
RCUS	230,820	$4,409	12/31/2023
Granahan Investment Management Inc. MA	230,777	$4,408	12/31/2023
RCUS	230,777	$4,408	12/31/2023
Panagora Asset Management Inc.	228,996	$4,374	12/31/2023
RCUS	228,996	$4,374	12/31/2023
Nordea Investment Management AB	205,428	$3,954	12/31/2023
RCUS	205,428	$3,954	12/31/2023
Platinum Investment Management Ltd.	204,398	$3,904	12/31/2023
RCUS	204,398	$3,904	12/31/2023
Barclays PLC	202,893	$3,876	12/31/2023
RCUS	202,893	$3,876	12/31/2023
Cutter Capital Management LP	192,667	$3,680	12/31/2023
RCUS	192,667	$3,680	12/31/2023
Invesco Ltd.	192,630	$3,679	12/31/2023
RCUS	192,630	$3,679	12/31/2023
ExodusPoint Capital Management LP	182,865	$3,493	12/31/2023
RCUS	182,865	$3,493	12/31/2023
Rhumbline Advisers	171,338	$3,273	12/31/2023
RCUS	171,338	$3,273	12/31/2023
Hudson Bay Capital Management LP	170,000	$3,247	12/31/2023
RCUS	170,000	$3,247	12/31/2023
Bank of America Corp DE		$3,111	12/31/2023
RCUS	164,892	$3,149	12/31/2023
Put	2,000	$38	12/31/2023
UBS Group AG	162,484	$3,103	12/31/2023
RCUS	162,484	$3,103	12/31/2023