On this page, we present all of the funds holding RYZB from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding RYZB, with a link to that fund's top holdings. The next columns indicate the amount of RYZB stock held by each of the funds holding RYZB, followed by the RYZB position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 101 funds holding RYZB within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Viking Global Investors LP. For more details on the positions held by Viking Global Investors LP (or by any of the other funds holding RYZB), click the fund name in the "Holder" column of the funds-holding-RYZB table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Viking Global Investors LP	6,642,700	$412,977	12/31/2023
RYZB	6,642,700	$412,977	12/31/2023
Versant Venture Management LLC	5,158,161	$320,683	12/31/2023
RYZB	5,158,161	$320,683	12/31/2023
venBio Partners LLC	5,158,162	$320,683	12/31/2023
RYZB	5,158,162	$320,683	12/31/2023
VR Adviser LLC	4,030,471	$250,574	12/31/2023
RYZB	4,030,471	$250,574	12/31/2023
Wellington Management Group LLP	3,504,409	$215,906	12/31/2023
RYZB	3,504,409	$215,906	12/31/2023
Sofinnova Investments Inc.	2,419,528	$150,422	12/31/2023
RYZB	2,419,528	$150,422	12/31/2023
Orbimed Advisors LLC	2,365,213	$147,045	12/31/2023
RYZB	2,365,213	$147,045	12/31/2023
Redmile Group LLC	1,857,706	$115,494	12/31/2023
RYZB	1,857,706	$115,494	12/31/2023
Samsara BioCapital LLC	1,845,948	$114,763	12/31/2023
RYZB	1,845,948	$114,763	12/31/2023
BlackRock Inc.	1,368,838	$85,101	12/31/2023
RYZB	1,368,838	$85,101	12/31/2023
Fairmount Funds Management LLC	1,245,929	$77,459	12/31/2023
RYZB	1,245,929	$77,459	12/31/2023
Cormorant Asset Management LP	1,213,478	$75,442	12/31/2023
RYZB	1,213,478	$75,442	12/31/2023
Vanguard Group Inc.	1,169,984	$72,738	12/31/2023
RYZB	1,169,984	$72,738	12/31/2023
Hillhouse Capital Advisors LTD.	1,062,383	$66,048	12/31/2023
RYZB	1,062,383	$66,048	12/31/2023
Deerfield Management Company L.P. Series C	1,006,126	$62,551	12/31/2023
RYZB	1,006,126	$62,551	12/31/2023
Alliancebernstein L.P.	938,877	$58,370	12/31/2023
RYZB	938,877	$58,370	12/31/2023
TCG Crossover Management LLC	869,908	$54,082	12/31/2023
RYZB	869,908	$54,082	12/31/2023
ABG WTT Global Life Science Capital Partners GP Ltd	778,922	$48,426	12/31/2023
RYZB	778,922	$48,426	12/31/2023
Sands Capital Ventures LLC	778,922	$48,426	12/31/2023
RYZB	778,922	$48,426	12/31/2023
Laurion Capital Management LP	771,913	$47,990	12/31/2023
RYZB	771,913	$47,990	12/31/2023
Alpine Associates Management Inc.	762,900	$47,429	12/31/2023
RYZB	762,900	$47,429	12/31/2023
Soleus Capital Management L.P.	746,622	$46,417	12/31/2023
RYZB	746,622	$46,417	12/31/2023
Perceptive Advisors LLC	744,056	$46,258	12/31/2023
RYZB	744,056	$46,258	12/31/2023
Logos Global Management LP	568,173	$35,323	12/31/2023
RYZB	568,173	$35,323	12/31/2023
Balyasny Asset Management LLC	539,793	$33,559	12/31/2023
RYZB	539,793	$33,559	12/31/2023
Magnetar Financial LLC	537,872	$33,440	12/31/2023
RYZB	537,872	$33,440	12/31/2023
Woodline Partners LP	533,114	$33,144	12/31/2023
RYZB	533,114	$33,144	12/31/2023
Franklin Resources Inc.	511,401	$31,794	12/31/2023
RYZB	511,401	$31,794	12/31/2023
Geode Capital Management LLC	434,891	$27,040	12/31/2023
RYZB	434,891	$27,040	12/31/2023
Commodore Capital LP	383,638	$23,851	12/31/2023
RYZB	383,638	$23,851	12/31/2023
Acuta Capital Partners LLC	378,069	$23,505	12/31/2023
RYZB	378,069	$23,505	12/31/2023
FMR LLC	245,271	$15,248	12/31/2023
RYZB	245,271	$15,248	12/31/2023
Water Island Capital LLC	225,565	$14,023	12/31/2023
RYZB	225,565	$14,023	12/31/2023
Platinum Investment Management Ltd.	222,222	$13,816	12/31/2023
RYZB	222,222	$13,816	12/31/2023
State Street Corp	211,205	$13,131	12/31/2023
RYZB	211,205	$13,131	12/31/2023
Pier Capital LLC	195,653	$12,164	12/31/2023
RYZB	195,653	$12,164	12/31/2023
Morgan Stanley	194,151	$12,070	12/31/2023
RYZB	194,151	$12,070	12/31/2023
Capital Research Global Investors	170,808	$10,619	12/31/2023
RYZB	170,808	$10,619	12/31/2023
FIL Ltd	162,000	$10,072	12/31/2023
RYZB	162,000	$10,072	12/31/2023
Northern Trust Corp	161,975	$10,070	12/31/2023
RYZB	161,975	$10,070	12/31/2023
Charles Schwab Investment Management Inc.	147,140	$9,148	12/31/2023
RYZB	147,140	$9,148	12/31/2023
Vivaldi Asset Management LLC	140,882	$8,759	12/31/2023
RYZB	140,882	$8,759	12/31/2023
CNH Partners LLC	136,895	$8,511	12/31/2023
RYZB	136,895	$8,511	12/31/2023
Man Group plc	120,000	$7,460	12/31/2023
RYZB	120,000	$7,460	12/31/2023
ArrowMark Colorado Holdings LLC	117,306	$7,293	12/31/2023
RYZB	117,306	$7,293	12/31/2023
Blackstone Group Inc	108,090	$6,720	12/31/2023
RYZB	108,090	$6,720	12/31/2023
JPMorgan Chase & Co.	103,940	$6,462	12/31/2023
RYZB	103,940	$6,462	12/31/2023
UBS Group AG	94,059	$5,848	12/31/2023
RYZB	94,059	$5,848	12/31/2023
Slotnik Capital LLC	85,000	$5,284	12/31/2023
RYZB	85,000	$5,284	12/31/2023
ARP Americas LP	80,771	$5,022	12/31/2023
RYZB	80,771	$5,022	12/31/2023
Pentwater Capital Management LP	80,000	$4,974	12/31/2023
RYZB	80,000	$4,974	12/31/2023
Qube Research & Technologies Ltd	64,696	$4,022	12/31/2023
RYZB	64,696	$4,022	12/31/2023
Marshall Wace LLP	58,800	$3,656	12/31/2023
RYZB	58,800	$3,656	12/31/2023
Gabelli Funds LLC	52,600	$3,270	12/31/2023
RYZB	52,600	$3,270	12/31/2023
Harvest Management LLC	50,000	$3,108	12/31/2023
RYZB	50,000	$3,108	12/31/2023
Nuveen Asset Management LLC	46,496	$2,891	12/31/2023
RYZB	46,496	$2,891	12/31/2023
Alps Advisors Inc.	41,539	$2,582	12/31/2023
RYZB	41,539	$2,582	12/31/2023
GABELLI & Co INVESTMENT ADVISERS INC.	38,850	$2,415	12/31/2023
RYZB	38,850	$2,415	12/31/2023
Prelude Capital Management LLC	36,971	$2,298	12/31/2023
RYZB	36,971	$2,298	12/31/2023
Barclays PLC	35,016	$2,178	12/31/2023
RYZB	35,016	$2,178	12/31/2023
Jane Street Group LLC	29,186	$1,814	12/31/2023
RYZB	29,186	$1,814	12/31/2023
Rhumbline Advisers	27,158	$1,688	12/31/2023
RYZB	27,158	$1,688	12/31/2023
Bank of America Corp DE	26,461	$1,645	12/31/2023
RYZB	26,461	$1,645	12/31/2023
ClearAlpha Technologies LP	24,310	$1,511	12/31/2023
RYZB	24,310	$1,511	12/31/2023
Ghisallo Capital Management LLC	20,000	$1,243	12/31/2023
RYZB	20,000	$1,243	12/31/2023
Allianz Asset Management GmbH	19,200	$1,194	12/31/2023
RYZB	19,200	$1,194	12/31/2023
Teachers Retirement System of The State of Kentucky	19,131	$1,189	12/31/2023
RYZB	19,131	$1,189	12/31/2023
Chicago Capital Management LLC	17,500	$1,088	12/31/2023
RYZB	17,500	$1,088	12/31/2023
BCK Capital Management LP	15,000	$933	12/31/2023
RYZB	15,000	$933	12/31/2023
Kellner Capital LLC	12,200	$758	12/31/2023
RYZB	12,200	$758	12/31/2023
Wolverine Asset Management LLC	11,700	$727	12/31/2023
RYZB	11,700	$727	12/31/2023
Price T Rowe Associates Inc. MD	11,086	$690	12/31/2023
RYZB	11,086	$690	12/31/2023
MetLife Investment Management LLC	10,892	$677	12/31/2023
RYZB	10,892	$677	12/31/2023
American International Group Inc.	9,987	$621	12/31/2023
RYZB	9,987	$621	12/31/2023
Deutsche Bank AG	9,962	$619	12/31/2023
RYZB	9,962	$619	12/31/2023
New York State Common Retirement Fund	8,969	$558	12/31/2023
RYZB	8,969	$558	12/31/2023
Invesco Ltd.	8,924	$555	12/31/2023
RYZB	8,924	$555	12/31/2023
Sagefield Capital LP	8,900	$553	12/31/2023
RYZB	8,900	$553	12/31/2023
SG Americas Securities LLC	8,138	$506	12/31/2023
RYZB	8,138	$506	12/31/2023
Voya Investment Management LLC	7,657	$476	12/31/2023
RYZB	7,657	$476	12/31/2023
The Manufacturers Life Insurance Company	7,612	$473	12/31/2023
RYZB	7,612	$473	12/31/2023
M&T Bank Corp	7,480	$466	12/31/2023
RYZB	7,480	$466	12/31/2023
Goldman Sachs Group Inc.	7,062	$439	12/31/2023
RYZB	7,062	$439	12/31/2023
Royal Bank of Canada	6,349	$395	12/31/2023
RYZB	6,349	$395	12/31/2023
Gamco Investors INC. ET AL	6,050	$376	12/31/2023
RYZB	6,050	$376	12/31/2023
Wells Fargo & Company MN	5,722	$356	12/31/2023
RYZB	5,722	$356	12/31/2023
Strs Ohio	4,300	$267	12/31/2023
RYZB	4,300	$267	12/31/2023
Victory Capital Management Inc.	4,055	$252	12/31/2023
RYZB	4,055	$252	12/31/2023
XTX Topco Ltd	4,027	$250	12/31/2023
RYZB	4,027	$250	12/31/2023
Virtus ETF Advisers LLC	3,481	$216	12/31/2023
RYZB	3,481	$216	12/31/2023
ProShare Advisors LLC	3,326	$207	12/31/2023
RYZB	3,326	$207	12/31/2023
California State Teachers Retirement System	3,307	$206	12/31/2023
RYZB	3,307	$206	12/31/2023
Citigroup Inc.	2,854	$177	12/31/2023
RYZB	2,854	$177	12/31/2023
Ameritas Investment Partners Inc.	2,080	$129	12/31/2023
RYZB	2,080	$129	12/31/2023
Legal & General Group Plc	1,930	$120	12/31/2023
RYZB	1,930	$120	12/31/2023
PenderFund Capital Management Ltd.	1,800	$112	12/31/2023
RYZB	1,800	$112	12/31/2023
Metropolitan Life Insurance Co NY	1,181	$73	12/31/2023
RYZB	1,181	$73	12/31/2023
Tower Research Capital LLC TRC	826	$51	12/31/2023
RYZB	826	$51	12/31/2023
Washington Trust Advisors Inc.	136	$8	12/31/2023
RYZB	136	$8	12/31/2023
EntryPoint Capital LLC	98	$6	12/31/2023
RYZB	98	$6	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
Call	0	$0	12/31/2023
RYZB	0	$0	12/31/2023
Susquehanna International Group LLP	18,166	$-1,190	12/31/2023
Put	37,300	$2,319	12/31/2023
RYZB	18,166	$1,129	12/31/2023