On this page, we present all of the funds holding CLDX from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding CLDX, with a link to that fund's top holdings. The next columns indicate the amount of CLDX stock held by each of the funds holding CLDX, followed by the CLDX position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 169 funds holding CLDX within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by FMR LLC. For more details on the positions held by FMR LLC (or by any of the other funds holding CLDX), click the fund name in the "Holder" column of the funds-holding-CLDX table below.

Holder	Amount	Position Size ($ in 1000's)	As of
FMR LLC	7,050,409	$279,619	12/31/2023
CLDX	7,050,409	$279,619	12/31/2023
Wellington Management Group LLP	6,476,561	$256,860	12/31/2023
CLDX	6,476,561	$256,860	12/31/2023
BlackRock Inc.	3,675,692	$145,778	12/31/2023
CLDX	3,675,692	$145,778	12/31/2023
Eventide Asset Management LLC	3,630,013	$143,966	12/31/2023
CLDX	3,630,013	$143,966	12/31/2023
RTW Investments LP	3,463,201	$137,351	12/31/2023
CLDX	3,463,201	$137,351	12/31/2023
Polar Capital Holdings Plc	3,135,871	$124,369	12/31/2023
CLDX	3,135,871	$124,369	12/31/2023
Vanguard Group Inc.	3,046,331	$120,817	12/31/2023
CLDX	3,046,331	$120,817	12/31/2023
Kynam Capital Management LP	3,005,904	$119,214	12/31/2023
CLDX	3,005,904	$119,214	12/31/2023
Point72 Asset Management L.P.	2,756,122	$109,308	12/31/2023
CLDX	2,756,122	$109,308	12/31/2023
Bellevue Group AG	2,416,296	$95,830	12/31/2023
CLDX	2,416,296	$95,830	12/31/2023
State Street Corp	2,377,326	$94,285	12/31/2023
CLDX	2,377,326	$94,285	12/31/2023
Pictet Asset Management Holding SA	2,225,448	$88,261	12/31/2023
CLDX	2,225,448	$88,261	12/31/2023
Marshall Wace LLP	1,280,084	$50,768	12/31/2023
CLDX	1,280,084	$50,768	12/31/2023
Geode Capital Management LLC	1,117,994	$44,345	12/31/2023
CLDX	1,117,994	$44,345	12/31/2023
Redmile Group LLC	993,803	$39,414	12/31/2023
CLDX	993,803	$39,414	12/31/2023
Rock Springs Capital Management LP	969,646	$38,456	12/31/2023
CLDX	969,646	$38,456	12/31/2023
Sofinnova Investments Inc.	844,008	$33,473	12/31/2023
CLDX	844,008	$33,473	12/31/2023
Eversept Partners LP	754,107	$29,908	12/31/2023
CLDX	754,107	$29,908	12/31/2023
Octagon Capital Advisors LP	707,526	$28,060	12/31/2023
CLDX	707,526	$28,060	12/31/2023
Commodore Capital LP	701,967	$27,840	12/31/2023
CLDX	701,967	$27,840	12/31/2023
Morgan Stanley	658,365	$26,111	12/31/2023
CLDX	658,365	$26,111	12/31/2023
5AM Venture Management LLC	497,270	$19,722	12/31/2023
CLDX	497,270	$19,722	12/31/2023
Northern Trust Corp	444,805	$17,641	12/31/2023
CLDX	444,805	$17,641	12/31/2023
Sphera Funds Management LTD.		$17,107	12/31/2023
CLDX	315,644	$12,518	12/31/2023
Call	115,700	$4,589	12/31/2023
Price T Rowe Associates Inc. MD	422,293	$16,749	12/31/2023
CLDX	422,293	$16,749	12/31/2023
Goldman Sachs Group Inc.		$16,363	12/31/2023
CLDX	437,759	$17,362	12/31/2023
Put	25,200	$999	12/31/2023
Charles Schwab Investment Management Inc.	409,391	$16,236	12/31/2023
CLDX	409,391	$16,236	12/31/2023
Affinity Asset Advisors LLC	400,000	$15,864	12/31/2023
CLDX	400,000	$15,864	12/31/2023
Woodline Partners LP	387,652	$15,374	12/31/2023
CLDX	387,652	$15,374	12/31/2023
Candriam Luxembourg S.C.A.	317,509	$12,593	12/31/2023
CLDX	317,509	$12,593	12/31/2023
Invesco Ltd.	257,563	$10,215	12/31/2023
CLDX	257,563	$10,215	12/31/2023
TSP Capital Management Group LLC	251,495	$9,974	12/31/2023
CLDX	251,495	$9,974	12/31/2023
Baker BROS. Advisors LP	247,644	$9,822	12/31/2023
CLDX	247,644	$9,822	12/31/2023
Silverarc Capital Management LLC	247,215	$9,805	12/31/2023
CLDX	247,215	$9,805	12/31/2023
Dimensional Fund Advisors LP	230,471	$9,141	12/31/2023
CLDX	230,471	$9,141	12/31/2023
Bank of America Corp DE	217,814	$8,639	12/31/2023
CLDX	217,814	$8,639	12/31/2023
Bank of New York Mellon Corp	200,838	$8,429	03/31/2024
CLDX	200,838	$8,429	03/31/2024
Ensign Peak Advisors Inc	179,611	$7,123	12/31/2023
CLDX	179,611	$7,123	12/31/2023
Walleye Capital LLC		$6,444	12/31/2023
CLDX	169,268	$6,713	12/31/2023
Put	13,600	$539	12/31/2023
Call	6,800	$270	12/31/2023
American Century Companies Inc.	161,051	$6,387	12/31/2023
CLDX	161,051	$6,387	12/31/2023
UBS Group AG	158,092	$6,270	12/31/2023
CLDX	158,092	$6,270	12/31/2023
Citadel Advisors LLC		$5,997	12/31/2023
CLDX	126,328	$5,010	12/31/2023
Call	69,500	$2,756	12/31/2023
Put	44,600	$1,769	12/31/2023
Rafferty Asset Management LLC	148,009	$5,870	12/31/2023
CLDX	148,009	$5,870	12/31/2023
Barclays PLC	145,894	$5,785	12/31/2023
CLDX	145,894	$5,785	12/31/2023
AXA S.A.	142,170	$5,638	12/31/2023
CLDX	142,170	$5,638	12/31/2023
Laurion Capital Management LP	138,531	$5,494	12/31/2023
CLDX	138,531	$5,494	12/31/2023
BNP Paribas Arbitrage SA	136,601	$5,418	12/31/2023
CLDX	136,601	$5,418	12/31/2023
Schonfeld Strategic Advisors LLC	130,542	$5,177	12/31/2023
CLDX	130,542	$5,177	12/31/2023
Nuveen Asset Management LLC	121,195	$4,807	12/31/2023
CLDX	121,195	$4,807	12/31/2023
Exome Asset Management LLC	111,300	$4,414	12/31/2023
CLDX	111,300	$4,414	12/31/2023
Mirador Capital Partners LP	104,759	$4,397	03/31/2024
CLDX	104,759	$4,397	03/31/2024
Monashee Investment Management LLC	100,209	$3,974	12/31/2023
CLDX	100,209	$3,974	12/31/2023
Swiss National Bank	97,000	$3,847	12/31/2023
CLDX	97,000	$3,847	12/31/2023
Assenagon Asset Management S.A.	90,931	$3,816	03/31/2024
CLDX	90,931	$3,816	03/31/2024
Rhumbline Advisers	76,022	$3,015	12/31/2023
CLDX	76,022	$3,015	12/31/2023
JPMorgan Chase & Co.	75,470	$2,993	12/31/2023
CLDX	75,470	$2,993	12/31/2023
Acuta Capital Partners LLC	69,400	$2,752	12/31/2023
CLDX	69,400	$2,752	12/31/2023
Crestline Management LP	67,243	$2,667	12/31/2023
CLDX	67,243	$2,667	12/31/2023
Susquehanna International Group LLP		$2,577	12/31/2023
Call	137,700	$5,461	12/31/2023
Put	121,600	$4,823	12/31/2023
CLDX	48,888	$1,939	12/31/2023
Citigroup Inc.	62,341	$2,472	12/31/2023
CLDX	62,341	$2,472	12/31/2023
Kennedy Capital Management Inc.	62,172	$2,466	12/31/2023
CLDX	62,172	$2,466	12/31/2023
Orbimed Advisors LLC	58,800	$2,332	12/31/2023
CLDX	58,800	$2,332	12/31/2023
Alliancebernstein L.P.	54,080	$2,145	12/31/2023
CLDX	54,080	$2,145	12/31/2023
TD Asset Management Inc.	52,322	$2,075	12/31/2023
CLDX	52,322	$2,075	12/31/2023
Legal & General Group Plc	52,012	$2,063	12/31/2023
CLDX	52,012	$2,063	12/31/2023
California State Teachers Retirement System	51,474	$2,041	12/31/2023
CLDX	51,474	$2,041	12/31/2023
Schroder Investment Management Group	48,099	$1,908	12/31/2023
CLDX	48,099	$1,908	12/31/2023
Credit Suisse AG	47,998	$1,904	12/31/2023
CLDX	47,998	$1,904	12/31/2023
SG Americas Securities LLC	46,083	$1,828	12/31/2023
CLDX	46,083	$1,828	12/31/2023
Qube Research & Technologies Ltd	44,968	$1,783	12/31/2023
CLDX	44,968	$1,783	12/31/2023
The Manufacturers Life Insurance Company	43,427	$1,722	12/31/2023
CLDX	43,427	$1,722	12/31/2023
Atom Investors LP	40,882	$1,621	12/31/2023
CLDX	40,882	$1,621	12/31/2023
AlphaCentric Advisors LLC	38,500	$1,616	03/31/2024
CLDX	38,500	$1,616	03/31/2024
State of Wisconsin Investment Board	40,518	$1,607	12/31/2023
CLDX	40,518	$1,607	12/31/2023
Alps Advisors Inc.	37,645	$1,493	12/31/2023
CLDX	37,645	$1,493	12/31/2023
Twinbeech Capital LP	37,177	$1,474	12/31/2023
CLDX	37,177	$1,474	12/31/2023
Deutsche Bank AG	36,315	$1,440	12/31/2023
CLDX	36,315	$1,440	12/31/2023
PFM Health Sciences LP	35,000	$1,388	12/31/2023
CLDX	35,000	$1,388	12/31/2023
UBS Asset Management Americas Inc.	34,868	$1,383	12/31/2023
CLDX	34,868	$1,383	12/31/2023
Teachers Retirement System of The State of Kentucky	32,697	$1,297	12/31/2023
CLDX	32,697	$1,297	12/31/2023
Trexquant Investment LP	31,429	$1,246	12/31/2023
CLDX	31,429	$1,246	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	28,538	$1,132	12/31/2023
CLDX	28,538	$1,132	12/31/2023
Prelude Capital Management LLC	26,512	$1,051	12/31/2023
CLDX	26,512	$1,051	12/31/2023
Mirae Asset Global Investments Co. Ltd.	26,258	$1,041	12/31/2023
CLDX	26,258	$1,041	12/31/2023
DekaBank Deutsche Girozentrale	25,000	$1,032	03/31/2024
CLDX	25,000	$1,032	03/31/2024
Janus Henderson Group PLC	25,883	$1,027	12/31/2023
CLDX	25,883	$1,027	12/31/2023
Profund Advisors LLC	24,486	$971	12/31/2023
CLDX	24,486	$971	12/31/2023
Balyasny Asset Management LLC	24,119	$957	12/31/2023
CLDX	24,119	$957	12/31/2023
MetLife Investment Management LLC	24,073	$955	12/31/2023
CLDX	24,073	$955	12/31/2023
D. E. Shaw & Co. Inc.	23,746	$942	12/31/2023
CLDX	23,746	$942	12/31/2023
Creative Planning	23,205	$920	12/31/2023
CLDX	23,205	$920	12/31/2023
American International Group Inc.	23,094	$916	12/31/2023
CLDX	23,094	$916	12/31/2023
New York State Common Retirement Fund	22,116	$877	12/31/2023
CLDX	22,116	$877	12/31/2023
Fisher Asset Management LLC	21,812	$865	12/31/2023
CLDX	21,812	$865	12/31/2023
Values First Advisors Inc.	19,692	$826	03/31/2024
CLDX	19,692	$826	03/31/2024
Jennison Associates LLC	20,078	$796	12/31/2023
CLDX	20,078	$796	12/31/2023
Voya Investment Management LLC	18,581	$737	12/31/2023
CLDX	18,581	$737	12/31/2023
Squarepoint Ops LLC	17,554	$696	12/31/2023
CLDX	17,554	$696	12/31/2023
Royal Bank of Canada	14,985	$594	12/31/2023
CLDX	14,985	$594	12/31/2023
Wells Fargo & Company MN	14,754	$585	12/31/2023
CLDX	14,754	$585	12/31/2023
Moody Aldrich Partners LLC	14,687	$582	12/31/2023
CLDX	14,687	$582	12/31/2023
Tudor Investment Corp Et Al	14,542	$577	12/31/2023
CLDX	14,542	$577	12/31/2023
Arizona State Retirement System	13,758	$546	12/31/2023
CLDX	13,758	$546	12/31/2023
State Board of Administration of Florida Retirement System	13,377	$531	12/31/2023
CLDX	13,377	$531	12/31/2023
HRT Financial LP	13,243	$525	12/31/2023
CLDX	13,243	$525	12/31/2023
Capstone Investment Advisors LLC	12,653	$502	12/31/2023
CLDX	12,653	$502	12/31/2023
Principal Financial Group Inc.	11,959	$474	12/31/2023
CLDX	11,959	$474	12/31/2023
First Trust Advisors LP	11,563	$459	12/31/2023
CLDX	11,563	$459	12/31/2023
NEOS Investment Management LLC	11,560	$458	12/31/2023
CLDX	11,560	$458	12/31/2023
Teacher Retirement System of Texas	11,356	$450	12/31/2023
CLDX	11,356	$450	12/31/2023
Fox Run Management L.L.C.	11,249	$446	12/31/2023
CLDX	11,249	$446	12/31/2023
Millennium Management LLC	10,997	$436	12/31/2023
CLDX	10,997	$436	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	10,018	$420	03/31/2024
CLDX	10,018	$420	03/31/2024
Algert Global LLC	9,910	$393	12/31/2023
CLDX	9,910	$393	12/31/2023
Engineers Gate Manager LP	9,070	$360	12/31/2023
CLDX	9,070	$360	12/31/2023
Handelsbanken Fonder AB	8,100	$321	12/31/2023
CLDX	8,100	$321	12/31/2023
E Fund Management Co. Ltd.	7,949	$315	12/31/2023
CLDX	7,949	$315	12/31/2023
ProShare Advisors LLC	7,690	$305	12/31/2023
CLDX	7,690	$305	12/31/2023
Overbrook Management Corp	7,089	$298	03/31/2024
CLDX	7,089	$298	03/31/2024
Victory Capital Management Inc.	7,252	$288	12/31/2023
CLDX	7,252	$288	12/31/2023
Los Angeles Capital Management & Equity Research Inc.	6,733	$283	03/31/2024
CLDX	6,733	$283	03/31/2024
Walleye Trading LLC		$280	12/31/2023
CLDX	14,079	$558	12/31/2023
Put	11,600	$460	12/31/2023
Call	4,600	$182	12/31/2023
Panoramic Investment Advisors LLC	6,500	$273	03/31/2024
CLDX	6,500	$273	03/31/2024
Aigen Investment Management LP	6,327	$251	12/31/2023
CLDX	6,327	$251	12/31/2023
DNB Asset Management AS	5,349	$224	03/31/2024
CLDX	5,349	$224	03/31/2024
XR Securities LLC		$206	12/31/2023
Call	5,200	$206	12/31/2023
Ameritas Investment Partners Inc.	4,616	$183	12/31/2023
CLDX	4,616	$183	12/31/2023
Great West Life Assurance Co. Can	3,615	$142	12/31/2023
CLDX	3,615	$142	12/31/2023
Aquatic Capital Management LLC	3,400	$135	12/31/2023
CLDX	3,400	$135	12/31/2023
Tower Research Capital LLC TRC	3,114	$124	12/31/2023
CLDX	3,114	$124	12/31/2023
Metropolitan Life Insurance Co NY	2,731	$108	12/31/2023
CLDX	2,731	$108	12/31/2023
Strs Ohio	2,700	$107	12/31/2023
CLDX	2,700	$107	12/31/2023
Virtus ETF Advisers LLC	2,561	$102	12/31/2023
CLDX	2,561	$102	12/31/2023
Amalgamated Bank	2,086	$88	03/31/2024
CLDX	2,086	$88	03/31/2024
US Bancorp DE	599	$24	12/31/2023
CLDX	599	$24	12/31/2023
Advisor Group Holdings Inc.	547	$22	12/31/2023
CLDX	547	$22	12/31/2023
Nisa Investment Advisors LLC	530	$21	12/31/2023
CLDX	530	$21	12/31/2023
The PNC Financial Services Group Inc.	425	$17	12/31/2023
CLDX	425	$17	12/31/2023
Steward Partners Investment Advisory LLC	400	$16	12/31/2023
CLDX	400	$16	12/31/2023
Caldwell Sutter Capital Inc.	350	$15	03/31/2024
CLDX	350	$15	03/31/2024
National Bank of Canada FI	368	$15	12/31/2023
CLDX	368	$15	12/31/2023
First Horizon Advisors Inc.	333	$14	03/31/2024
CLDX	333	$14	03/31/2024
Lindbrook Capital LLC	155	$7	03/31/2024
CLDX	155	$7	03/31/2024
Close Asset Management Ltd	133	$5	12/31/2023
CLDX	133	$5	12/31/2023
CWM LLC	89	$4	03/31/2024
CLDX	89	$4	03/31/2024
Tsfg LLC	100	$4	03/31/2024
CLDX	100	$4	03/31/2024
Signaturefd LLC	113	$4	12/31/2023
CLDX	113	$4	12/31/2023
Rise Advisors LLC	83	$3	03/31/2024
CLDX	83	$3	03/31/2024
Spire Wealth Management	50	$2	03/31/2024
CLDX	50	$2	03/31/2024
EverSource Wealth Advisors LLC	39	$2	12/31/2023
CLDX	39	$2	12/31/2023
Westend Capital Management LLC	24	$1	03/31/2024
CLDX	24	$1	03/31/2024
Hartford Financial Management Inc.	18	$1	03/31/2024
CLDX	18	$1	03/31/2024
GAMMA Investing LLC	24	$1	03/31/2024
CLDX	24	$1	03/31/2024
Highlander Capital Management LLC	20	$1	12/31/2023
CLDX	20	$1	12/31/2023
Parallel Advisors LLC	22	$1	12/31/2023
CLDX	22	$1	12/31/2023
Farther Finance Advisors LLC	20	$1	12/31/2023
CLDX	20	$1	12/31/2023
Livelsberger Financial Advisory	33	$1	12/31/2023
CLDX	33	$1	12/31/2023
UMB Bank N A MO	2	$0	03/31/2024
CLDX	2	$0	03/31/2024
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
Call	0	$0	12/31/2023
CLDX	0	$0	12/31/2023
Nomura Asset Management Co. Ltd.	0	$0	12/31/2023
CLDX	0	$0	12/31/2023
Scarborough Advisors LLC	6	$0	12/31/2023
CLDX	6	$0	12/31/2023
Householder Group Estate & Retirement Specialist LLC	11	$0	12/31/2023
CLDX	11	$0	12/31/2023
Covestor Ltd	5	$0	12/31/2023
CLDX	5	$0	12/31/2023
Strategic Investment Solutions Inc. IL	5	$0	12/31/2023
CLDX	5	$0	12/31/2023
Ikarian Capital LLC		$-8	12/31/2023
Put	200	$8	12/31/2023
Group One Trading L.P.		$-114	12/31/2023
Put	39,700	$1,575	12/31/2023
CLDX	21,536	$854	12/31/2023
Call	15,300	$607	12/31/2023
Wolverine Trading LLC		$-370	12/31/2023
Put	14,400	$571	12/31/2023
CLDX	5,058	$201	12/31/2023
Caption Management LLC		$-848	12/31/2023
Put	176,100	$6,984	12/31/2023
Call	115,000	$4,561	12/31/2023
CLDX	39,700	$1,575	12/31/2023
Simplex Trading LLC		$-1,155	03/31/2024
Put	58,500	$2,455	03/31/2024
CLDX	24,101	$1,011	03/31/2024
Call	6,900	$289	03/31/2024
Jane Street Group LLC	10,900	$-4,535	12/31/2023
Put	253,400	$10,050	12/31/2023
CLDX	128,161	$5,083	12/31/2023
Call	10,900	$432	12/31/2023