On this page, we present all of the funds holding ARDX from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding ARDX, with a link to that fund's top holdings. The next columns indicate the amount of ARDX stock held by each of the funds holding ARDX, followed by the ARDX position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 161 funds holding ARDX within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Janus Henderson Group PLC. For more details on the positions held by Janus Henderson Group PLC (or by any of the other funds holding ARDX), click the fund name in the "Holder" column of the funds-holding-ARDX table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Janus Henderson Group PLC	24,658,820	$152,777	12/31/2023
ARDX	24,658,820	$152,777	12/31/2023
State Street Corp	17,102,598	$106,036	12/31/2023
ARDX	17,102,598	$106,036	12/31/2023
BlackRock Inc.	16,776,055	$104,012	12/31/2023
ARDX	16,776,055	$104,012	12/31/2023
Vanguard Group Inc.	13,026,046	$80,761	12/31/2023
ARDX	13,026,046	$80,761	12/31/2023
Eventide Asset Management LLC	6,805,494	$42,194	12/31/2023
ARDX	6,805,494	$42,194	12/31/2023
Geode Capital Management LLC	4,995,362	$30,975	12/31/2023
ARDX	4,995,362	$30,975	12/31/2023
Rubric Capital Management LP	4,012,753	$24,879	12/31/2023
ARDX	4,012,753	$24,879	12/31/2023
Morgan Stanley	3,205,108	$19,872	12/31/2023
ARDX	3,205,108	$19,872	12/31/2023
Adage Capital Partners GP L.L.C.	2,600,000	$16,120	12/31/2023
ARDX	2,600,000	$16,120	12/31/2023
Susquehanna International Group LLP		$15,862	12/31/2023
ARDX	2,589,482	$16,055	12/31/2023
Put	720,000	$4,464	12/31/2023
Call	688,900	$4,271	12/31/2023
Invesco Ltd.	2,333,127	$14,465	12/31/2023
ARDX	2,333,127	$14,465	12/31/2023
Price T Rowe Associates Inc. MD	2,329,266	$14,442	12/31/2023
ARDX	2,329,266	$14,442	12/31/2023
Oracle Investment Management Inc.		$14,196	12/31/2023
Call	1,425,000	$8,835	12/31/2023
ARDX	864,700	$5,361	12/31/2023
Northern Trust Corp	2,187,818	$13,564	12/31/2023
ARDX	2,187,818	$13,564	12/31/2023
Barclays PLC	2,185,620	$13,552	12/31/2023
ARDX	2,185,620	$13,552	12/31/2023
Nuveen Asset Management LLC	2,107,891	$13,069	12/31/2023
ARDX	2,107,891	$13,069	12/31/2023
Charles Schwab Investment Management Inc.	1,816,732	$11,264	12/31/2023
ARDX	1,816,732	$11,264	12/31/2023
J. Goldman & Co LP	1,599,220	$9,915	12/31/2023
ARDX	1,599,220	$9,915	12/31/2023
Knott David M Jr	1,380,000	$8,556	12/31/2023
ARDX	1,380,000	$8,556	12/31/2023
Rafferty Asset Management LLC	1,375,514	$8,528	12/31/2023
ARDX	1,375,514	$8,528	12/31/2023
Lion Point Capital LP	1,151,667	$7,140	12/31/2023
ARDX	1,151,667	$7,140	12/31/2023
Voloridge Investment Management LLC	1,137,068	$7,050	12/31/2023
ARDX	1,137,068	$7,050	12/31/2023
Deutsche Bank AG	1,133,147	$7,026	12/31/2023
ARDX	1,133,147	$7,026	12/31/2023
Goldman Sachs Group Inc.	1,104,070	$6,845	12/31/2023
ARDX	1,104,070	$6,845	12/31/2023
Bank of New York Mellon Corp	1,056,101	$6,548	12/31/2023
ARDX	1,056,101	$6,548	12/31/2023
Standard Life Aberdeen plc	833,614	$5,168	12/31/2023
ARDX	833,614	$5,168	12/31/2023
Pekin Hardy Strauss Inc.	771,367	$4,782	12/31/2023
ARDX	771,367	$4,782	12/31/2023
BNP Paribas Arbitrage SA	644,975	$3,999	12/31/2023
ARDX	644,975	$3,999	12/31/2023
UBS Group AG	598,650	$3,712	12/31/2023
ARDX	598,650	$3,712	12/31/2023
Propel Bio Management LLC	594,174	$3,684	12/31/2023
ARDX	594,174	$3,684	12/31/2023
Jane Street Group LLC		$3,663	12/31/2023
ARDX	1,095,906	$6,795	12/31/2023
Put	725,200	$4,496	12/31/2023
Call	220,000	$1,364	12/31/2023
Citigroup Inc.	555,576	$3,445	12/31/2023
ARDX	555,576	$3,445	12/31/2023
Hennion & Walsh Asset Management Inc.	438,827	$3,203	03/31/2024
ARDX	438,827	$3,203	03/31/2024
Voya Investment Management LLC	505,853	$3,136	12/31/2023
ARDX	505,853	$3,136	12/31/2023
Two Sigma Investments LP	469,293	$2,910	12/31/2023
ARDX	469,293	$2,910	12/31/2023
Simplex Trading LLC		$2,713	12/31/2023
ARDX	400,679	$2,484	12/31/2023
Call	311,300	$1,930	12/31/2023
Put	274,400	$1,701	12/31/2023
Swiss National Bank	429,400	$2,662	12/31/2023
ARDX	429,400	$2,662	12/31/2023
Group One Trading L.P.		$2,548	12/31/2023
Call	589,000	$3,652	12/31/2023
Put	572,000	$3,546	12/31/2023
ARDX	393,805	$2,442	12/31/2023
JPMorgan Chase & Co.	354,257	$2,196	12/31/2023
ARDX	354,257	$2,196	12/31/2023
Simplify Asset Management Inc.	350,000	$2,170	12/31/2023
ARDX	350,000	$2,170	12/31/2023
Rhumbline Advisers	326,764	$2,026	12/31/2023
ARDX	326,764	$2,026	12/31/2023
Squarepoint Ops LLC	326,289	$2,023	12/31/2023
ARDX	326,289	$2,023	12/31/2023
UBS Asset Management Americas Inc.	310,646	$1,926	12/31/2023
ARDX	310,646	$1,926	12/31/2023
TD Asset Management Inc.	290,936	$1,804	12/31/2023
ARDX	290,936	$1,804	12/31/2023
New York State Common Retirement Fund	283,648	$1,759	12/31/2023
ARDX	283,648	$1,759	12/31/2023
683 Capital Management LLC	272,000	$1,686	12/31/2023
ARDX	272,000	$1,686	12/31/2023
Russell Investments Group Ltd.	267,251	$1,657	12/31/2023
ARDX	267,251	$1,657	12/31/2023
Credit Suisse AG	266,336	$1,651	12/31/2023
ARDX	266,336	$1,651	12/31/2023
Dimensional Fund Advisors LP	256,956	$1,594	12/31/2023
ARDX	256,956	$1,594	12/31/2023
The Manufacturers Life Insurance Company	238,393	$1,478	12/31/2023
ARDX	238,393	$1,478	12/31/2023
California State Teachers Retirement System	232,025	$1,439	12/31/2023
ARDX	232,025	$1,439	12/31/2023
Profund Advisors LLC	222,648	$1,380	12/31/2023
ARDX	222,648	$1,380	12/31/2023
Legal & General Group Plc	220,237	$1,365	12/31/2023
ARDX	220,237	$1,365	12/31/2023
Alliancebernstein L.P.	219,300	$1,360	12/31/2023
ARDX	219,300	$1,360	12/31/2023
UBS Oconnor LLC		$1,307	12/31/2023
ARDX	204,600	$1,269	12/31/2023
Call	150,000	$38	12/31/2023
Bank of America Corp DE		$1,251	12/31/2023
ARDX	459,959	$2,852	12/31/2023
Put	258,300	$1,601	12/31/2023
Citadel Advisors LLC		$1,188	12/31/2023
Call	319,500	$1,981	12/31/2023
Put	294,200	$1,824	12/31/2023
ARDX	166,303	$1,031	12/31/2023
GTS Securities LLC		$1,187	12/31/2023
ARDX	227,525	$1,411	12/31/2023
Put	77,800	$482	12/31/2023
Call	41,600	$258	12/31/2023
Raymond James Financial Services Advisors Inc.	161,495	$1,179	03/31/2024
ARDX	161,495	$1,179	03/31/2024
State of Wisconsin Investment Board	179,238	$1,111	12/31/2023
ARDX	179,238	$1,111	12/31/2023
Franklin Resources Inc.	176,618	$1,095	12/31/2023
ARDX	176,618	$1,095	12/31/2023
ClariVest Asset Management LLC	158,399	$982	12/31/2023
ARDX	158,399	$982	12/31/2023
PFG Investments LLC	134,125	$979	03/31/2024
ARDX	134,125	$979	03/31/2024
Mirae Asset Global Investments Co. Ltd.	152,389	$945	12/31/2023
ARDX	152,389	$945	12/31/2023
Allianz Asset Management GmbH	146,700	$910	12/31/2023
ARDX	146,700	$910	12/31/2023
Cubist Systematic Strategies LLC	133,498	$828	12/31/2023
ARDX	133,498	$828	12/31/2023
Campbell & CO Investment Adviser LLC	126,314	$783	12/31/2023
ARDX	126,314	$783	12/31/2023
MetLife Investment Management LLC	121,552	$754	12/31/2023
ARDX	121,552	$754	12/31/2023
American International Group Inc.	114,597	$711	12/31/2023
ARDX	114,597	$711	12/31/2023
Calamos Advisors LLC	112,353	$697	12/31/2023
ARDX	112,353	$697	12/31/2023
Wellington Management Group LLP	106,931	$663	12/31/2023
ARDX	106,931	$663	12/31/2023
Wells Fargo & Company MN	106,269	$659	12/31/2023
ARDX	106,269	$659	12/31/2023
SG Americas Securities LLC	104,216	$646	12/31/2023
ARDX	104,216	$646	12/31/2023
LPL Financial LLC	103,936	$644	12/31/2023
ARDX	103,936	$644	12/31/2023
DekaBank Deutsche Girozentrale	100,000	$632	12/31/2023
ARDX	100,000	$632	12/31/2023
Allspring Global Investments Holdings LLC	79,470	$580	03/31/2024
ARDX	79,470	$580	03/31/2024
AQR Capital Management LLC	88,318	$548	12/31/2023
ARDX	88,318	$548	12/31/2023
Gotham Asset Management LLC	81,517	$505	12/31/2023
ARDX	81,517	$505	12/31/2023
Royal Bank of Canada	76,972	$477	12/31/2023
ARDX	76,972	$477	12/31/2023
E Fund Management Co. Ltd.	73,585	$456	12/31/2023
ARDX	73,585	$456	12/31/2023
Personal CFO Solutions LLC	70,000	$434	12/31/2023
ARDX	70,000	$434	12/31/2023
Clough Capital Partners L P	68,422	$424	12/31/2023
ARDX	68,422	$424	12/31/2023
Wolverine Trading LLC		$415	12/31/2023
Call	82,900	$514	12/31/2023
Put	35,500	$220	12/31/2023
ARDX	19,532	$121	12/31/2023
CWM Advisors LLC	61,827	$383	12/31/2023
ARDX	61,827	$383	12/31/2023
Clay Northam Wealth Management LLC	61,602	$382	12/31/2023
ARDX	61,602	$382	12/31/2023
Arizona State Retirement System	60,902	$378	12/31/2023
ARDX	60,902	$378	12/31/2023
State Board of Administration of Florida Retirement System	60,780	$377	12/31/2023
ARDX	60,780	$377	12/31/2023
Brown Wealth Management LLC	60,000	$372	12/31/2023
ARDX	60,000	$372	12/31/2023
First Citizens Bank & Trust Co.	50,000	$365	03/31/2024
ARDX	50,000	$365	03/31/2024
Zurcher Kantonalbank Zurich Cantonalbank	58,011	$360	12/31/2023
ARDX	58,011	$360	12/31/2023
North Star Asset Management Inc.	56,000	$347	12/31/2023
ARDX	56,000	$347	12/31/2023
ProShare Advisors LLC	52,994	$329	12/31/2023
ARDX	52,994	$329	12/31/2023
Caption Management LLC		$324	12/31/2023
ARDX	52,500	$326	12/31/2023
Put	20,000	$124	12/31/2023
Call	19,600	$122	12/31/2023
Teacher Retirement System of Texas	50,270	$312	12/31/2023
ARDX	50,270	$312	12/31/2023
Keebeck Wealth Management LLC	50,000	$310	12/31/2023
ARDX	50,000	$310	12/31/2023
Values First Advisors Inc.	42,083	$307	03/31/2024
ARDX	42,083	$307	03/31/2024
Tyler Stone Wealth Management		$287	12/31/2023
ARDX	45,000	$279	12/31/2023
Call	88	$8	12/31/2023
West Michigan Advisors LLC	41,250	$256	12/31/2023
ARDX	41,250	$256	12/31/2023
Syon Capital LLC	38,900	$241	12/31/2023
ARDX	38,900	$241	12/31/2023
AXQ Capital LP	30,500	$189	12/31/2023
ARDX	30,500	$189	12/31/2023
Mackenzie Financial Corp	30,269	$188	12/31/2023
ARDX	30,269	$188	12/31/2023
Victory Capital Management Inc.	30,100	$187	12/31/2023
ARDX	30,100	$187	12/31/2023
Pictet Asset Management Holding SA	29,376	$182	12/31/2023
ARDX	29,376	$182	12/31/2023
Great West Life Assurance Co. Can	27,680	$170	12/31/2023
ARDX	27,680	$170	12/31/2023
Principal Financial Group Inc.	27,450	$170	12/31/2023
ARDX	27,450	$170	12/31/2023
China Universal Asset Management Co. Ltd.	26,851	$166	12/31/2023
ARDX	26,851	$166	12/31/2023
Commonwealth Equity Services LLC	26,151	$162	12/31/2023
ARDX	26,151	$162	12/31/2023
Boothbay Fund Management LLC	24,900	$154	12/31/2023
ARDX	24,900	$154	12/31/2023
Cookson Peirce & Co. Inc.	20,826	$152	03/31/2024
ARDX	20,826	$152	03/31/2024
Ameritas Investment Partners Inc.	23,865	$148	12/31/2023
ARDX	23,865	$148	12/31/2023
Raymond James & Associates	20,069	$147	03/31/2024
ARDX	20,069	$147	03/31/2024
Wealth Enhancement Advisory Services LLC	19,748	$144	03/31/2024
ARDX	19,748	$144	03/31/2024
Advisor Group Holdings Inc.	22,840	$142	12/31/2023
ARDX	22,840	$142	12/31/2023
Mariner LLC	22,525	$140	12/31/2023
ARDX	22,525	$140	12/31/2023
Sargent Investment Group LLC	19,819	$123	12/31/2023
ARDX	19,819	$123	12/31/2023
Lazard Asset Management LLC	18,683	$115	12/31/2023
ARDX	18,683	$115	12/31/2023
Ausdal Financial Partners Inc.	15,213	$111	03/31/2024
ARDX	15,213	$111	03/31/2024
Sherbrooke Park Advisers LLC	17,360	$108	12/31/2023
ARDX	17,360	$108	12/31/2023
FMR LLC	17,097	$106	12/31/2023
ARDX	17,097	$106	12/31/2023
Tower Research Capital LLC TRC	16,298	$101	12/31/2023
ARDX	16,298	$101	12/31/2023
Stifel Financial Corp	16,150	$100	12/31/2023
ARDX	16,150	$100	12/31/2023
Seven Eight Capital LP	16,052	$100	12/31/2023
ARDX	16,052	$100	12/31/2023
Virtus ETF Advisers LLC	15,962	$99	12/31/2023
ARDX	15,962	$99	12/31/2023
Prudential Financial Inc.	15,750	$98	12/31/2023
ARDX	15,750	$98	12/31/2023
Envestnet Asset Management Inc.	15,093	$94	12/31/2023
ARDX	15,093	$94	12/31/2023
Cora Capital Advisors LLC	12,462	$91	03/31/2024
ARDX	12,462	$91	03/31/2024
Blair William & Co. IL	14,500	$90	12/31/2023
ARDX	14,500	$90	12/31/2023
Xponance Inc.	14,112	$87	12/31/2023
ARDX	14,112	$87	12/31/2023
Ameriprise Financial Inc.	13,612	$84	12/31/2023
ARDX	13,612	$84	12/31/2023
Metropolitan Life Insurance Co NY	13,184	$82	12/31/2023
ARDX	13,184	$82	12/31/2023
Vontobel Holding Ltd.	12,000	$74	12/31/2023
ARDX	12,000	$74	12/31/2023
XTX Topco Ltd	11,976	$74	12/31/2023
ARDX	11,976	$74	12/31/2023
Willis Johnson & Associates Inc.	10,000	$73	03/31/2024
ARDX	10,000	$73	03/31/2024
SJS Investment Consulting Inc.	10,000	$73	03/31/2024
ARDX	10,000	$73	03/31/2024
Integrated Wealth Concepts LLC	11,830	$73	12/31/2023
ARDX	11,830	$73	12/31/2023
Orion Portfolio Solutions LLC	11,531	$71	12/31/2023
ARDX	11,531	$71	12/31/2023
Jump Financial LLC	10,118	$63	12/31/2023
ARDX	10,118	$63	12/31/2023
Amalgamated Bank	7,838	$57	03/31/2024
ARDX	7,838	$57	03/31/2024
Covestor Ltd	8,991	$56	12/31/2023
ARDX	8,991	$56	12/31/2023
National Bank of Canada FI	4,000	$24	12/31/2023
ARDX	4,000	$24	12/31/2023
Principal Securities Inc.	2,000	$12	12/31/2023
ARDX	2,000	$12	12/31/2023
Steward Partners Investment Advisory LLC	1,728	$11	12/31/2023
ARDX	1,728	$11	12/31/2023
Provence Wealth Management Group	1,400	$9	12/31/2023
ARDX	1,400	$9	12/31/2023
GWM Advisors LLC	1,000	$6	12/31/2023
ARDX	1,000	$6	12/31/2023
Garner Asset Management Corp	1,000	$6	12/31/2023
ARDX	1,000	$6	12/31/2023
GAMMA Investing LLC	662	$5	03/31/2024
ARDX	662	$5	03/31/2024
Daiwa Securities Group Inc.	754	$5	12/31/2023
ARDX	754	$5	12/31/2023
Webster Bank N. A.	500	$4	03/31/2024
ARDX	500	$4	03/31/2024
Truvestments Capital LLC	645	$4	12/31/2023
ARDX	645	$4	12/31/2023
Harbour Investments Inc.	500	$3	12/31/2023
ARDX	500	$3	12/31/2023
Allworth Financial LP	476	$3	12/31/2023
ARDX	476	$3	12/31/2023
NBC Securities Inc.	258	$2	03/31/2024
ARDX	258	$2	03/31/2024
Ancora Advisors LLC	287	$2	12/31/2023
ARDX	287	$2	12/31/2023
Able Wealth Management LLC	325	$2	12/31/2023
ARDX	325	$2	12/31/2023
Nisa Investment Advisors LLC	128	$1	12/31/2023
ARDX	128	$1	12/31/2023
Signaturefd LLC	158	$1	12/31/2023
ARDX	158	$1	12/31/2023
Anchor Investment Management LLC	200	$1	12/31/2023
ARDX	200	$1	12/31/2023
Lindbrook Capital LLC	199	$1	12/31/2023
ARDX	199	$1	12/31/2023
CWM LLC	10	$0	03/31/2024
ARDX	10	$0	03/31/2024
The PNC Financial Services Group Inc.	12	$0	12/31/2023
ARDX	12	$0	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
ARDX	0	$0	12/31/2023
Call	0	$0	12/31/2023
Crewe Advisors LLC	31	$0	12/31/2023
ARDX	31	$0	12/31/2023

See Summary: Institutional Holders of ARDX
See Details: Top 10 Hedge Funds Holding ARDX
Also See: ARDX Insider Buying
Also See: ARDX Holdings Changes

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