On this page, we present all of the funds holding COLL from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding COLL, with a link to that fund's top holdings. The next columns indicate the amount of COLL stock held by each of the funds holding COLL, followed by the COLL position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 197 funds holding COLL within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by BlackRock Inc.. For more details on the positions held by BlackRock Inc. (or by any of the other funds holding COLL), click the fund name in the "Holder" column of the funds-holding-COLL table below.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	5,786,993	$178,124	12/31/2023
COLL	5,786,993	$178,124	12/31/2023
Rubric Capital Management LP	2,758,253	$84,899	12/31/2023
COLL	2,758,253	$84,899	12/31/2023
Eventide Asset Management LLC	2,630,478	$80,966	12/31/2023
COLL	2,630,478	$80,966	12/31/2023
Vanguard Group Inc.	2,312,786	$71,188	12/31/2023
COLL	2,312,786	$71,188	12/31/2023
Pacer Advisors Inc.	2,174,718	$66,938	12/31/2023
COLL	2,174,718	$66,938	12/31/2023
Principal Financial Group Inc.	1,569,151	$48,298	12/31/2023
COLL	1,569,151	$48,298	12/31/2023
Invesco Ltd.	1,441,617	$44,373	12/31/2023
COLL	1,441,617	$44,373	12/31/2023
Renaissance Technologies LLC	1,384,598	$42,618	12/31/2023
COLL	1,384,598	$42,618	12/31/2023
State Street Corp	1,313,875	$40,441	12/31/2023
COLL	1,313,875	$40,441	12/31/2023
Morgan Stanley		$34,790	12/31/2023
COLL	1,001,751	$30,834	12/31/2023
NOTE 2	3,244,000	$3,956	12/31/2023
Camber Capital Management LP	1,050,000	$32,319	12/31/2023
COLL	1,050,000	$32,319	12/31/2023
Dimensional Fund Advisors LP	1,039,218	$31,987	12/31/2023
COLL	1,039,218	$31,987	12/31/2023
Geode Capital Management LLC	731,266	$22,511	12/31/2023
COLL	731,266	$22,511	12/31/2023
Victory Capital Management Inc.	723,297	$22,263	12/31/2023
COLL	723,297	$22,263	12/31/2023
Emerald Advisers LLC	666,096	$20,502	12/31/2023
COLL	666,096	$20,502	12/31/2023
Massachusetts Financial Services Co. MA	665,118	$20,472	12/31/2023
COLL	665,118	$20,472	12/31/2023
Janus Henderson Group PLC	627,512	$19,315	12/31/2023
COLL	627,512	$19,315	12/31/2023
Rock Springs Capital Management LP	562,000	$17,298	12/31/2023
COLL	562,000	$17,298	12/31/2023
Emerald Mutual Fund Advisers Trust	551,794	$16,984	12/31/2023
COLL	551,794	$16,984	12/31/2023
Millennium Management LLC	443,645	$13,655	12/31/2023
COLL	443,645	$13,655	12/31/2023
Northern Trust Corp	400,867	$12,339	12/31/2023
COLL	400,867	$12,339	12/31/2023
Brandywine Global Investment Management LLC	374,115	$11,515	12/31/2023
COLL	374,115	$11,515	12/31/2023
Avidity Partners Management LP	361,363	$11,123	12/31/2023
COLL	361,363	$11,123	12/31/2023
Assenagon Asset Management S.A.	345,840	$10,645	12/31/2023
COLL	345,840	$10,645	12/31/2023
Peregrine Capital Management LLC	344,532	$10,605	12/31/2023
COLL	344,532	$10,605	12/31/2023
Bank of New York Mellon Corp	322,652	$9,931	12/31/2023
COLL	322,652	$9,931	12/31/2023
Penn Capital Management Co. Inc.	315,774	$9,755	12/31/2023
COLL	315,774	$9,755	12/31/2023
Charles Schwab Investment Management Inc.	305,466	$9,402	12/31/2023
COLL	305,466	$9,402	12/31/2023
CSS LLC IL		$8,858	12/31/2023
NOTE 2	7,269,000	$8,858	12/31/2023
Loomis Sayles & Co. L P	276,129	$8,499	12/31/2023
COLL	276,129	$8,499	12/31/2023
Two Sigma Investments LP	259,812	$7,997	12/31/2023
COLL	259,812	$7,997	12/31/2023
Two Sigma Advisers LP	245,000	$7,541	12/31/2023
COLL	245,000	$7,541	12/31/2023
South Dakota Investment Council	243,718	$7,502	12/31/2023
COLL	243,718	$7,502	12/31/2023
JPMorgan Chase & Co.	225,748	$6,949	12/31/2023
COLL	225,748	$6,949	12/31/2023
D. E. Shaw & Co. Inc.	221,505	$6,818	12/31/2023
COLL	221,505	$6,818	12/31/2023
Arrowstreet Capital Limited Partnership	219,348	$6,752	12/31/2023
COLL	219,348	$6,752	12/31/2023
Federated Hermes Inc.	212,768	$6,549	12/31/2023
COLL	212,768	$6,549	12/31/2023
Goldman Sachs Group Inc.	205,062	$6,312	12/31/2023
COLL	205,062	$6,312	12/31/2023
New York State Common Retirement Fund	201,112	$6,190	12/31/2023
COLL	201,112	$6,190	12/31/2023
Alliancebernstein L.P.	159,790	$4,918	12/31/2023
COLL	159,790	$4,918	12/31/2023
Uniplan Investment Counsel Inc.	147,093	$4,530	12/31/2023
COLL	147,093	$4,530	12/31/2023
BNP Paribas Arbitrage SA	146,543	$4,511	12/31/2023
COLL	146,543	$4,511	12/31/2023
Royce & Associates LP	143,083	$4,404	12/31/2023
COLL	143,083	$4,404	12/31/2023
Tejara Capital Ltd	141,099	$4,343	12/31/2023
COLL	141,099	$4,343	12/31/2023
Marshall Wace LLP	136,049	$4,188	12/31/2023
COLL	136,049	$4,188	12/31/2023
LSV Asset Management	131,800	$4,057	12/31/2023
COLL	131,800	$4,057	12/31/2023
Sei Investments Co.	129,541	$3,987	12/31/2023
COLL	129,541	$3,987	12/31/2023
LPL Financial LLC	119,878	$3,690	12/31/2023
COLL	119,878	$3,690	12/31/2023
Citadel Advisors LLC		$3,582	12/31/2023
COLL	110,508	$3,401	12/31/2023
Call	6,900	$212	12/31/2023
Put	1,000	$31	12/31/2023
Rhumbline Advisers	108,147	$3,329	12/31/2023
COLL	108,147	$3,329	12/31/2023
AQR Capital Management LLC	105,166	$3,237	12/31/2023
COLL	105,166	$3,237	12/31/2023
Ameriprise Financial Inc.	101,341	$3,119	12/31/2023
COLL	101,341	$3,119	12/31/2023
Mutual of America Capital Management LLC	99,975	$3,077	12/31/2023
COLL	99,975	$3,077	12/31/2023
Trexquant Investment LP	94,577	$2,911	12/31/2023
COLL	94,577	$2,911	12/31/2023
Hillsdale Investment Management Inc.	94,300	$2,903	12/31/2023
COLL	94,300	$2,903	12/31/2023
Legal & General Group Plc	93,430	$2,876	12/31/2023
COLL	93,430	$2,876	12/31/2023
Nuveen Asset Management LLC	92,329	$2,842	12/31/2023
COLL	92,329	$2,842	12/31/2023
Los Angeles Capital Management & Equity Research Inc.	65,940	$2,560	03/31/2024
COLL	65,940	$2,560	03/31/2024
Third Avenue Management LLC	83,120	$2,558	12/31/2023
COLL	83,120	$2,558	12/31/2023
DeepCurrents Investment Group LLC		$2,447	12/31/2023
NOTE 2	1,985,000	$2,447	12/31/2023
Exchange Traded Concepts LLC	62,529	$2,427	03/31/2024
COLL	62,529	$2,427	03/31/2024
Barclays PLC	72,732	$2,239	12/31/2023
COLL	72,732	$2,239	12/31/2023
Cubist Systematic Strategies LLC	72,329	$2,226	12/31/2023
COLL	72,329	$2,226	12/31/2023
American Century Companies Inc.	69,646	$2,144	12/31/2023
COLL	69,646	$2,144	12/31/2023
Swiss National Bank	68,500	$2,108	12/31/2023
COLL	68,500	$2,108	12/31/2023
Public Sector Pension Investment Board	67,676	$2,083	12/31/2023
COLL	67,676	$2,083	12/31/2023
State of Wisconsin Investment Board	60,668	$1,867	12/31/2023
COLL	60,668	$1,867	12/31/2023
National Bank of Canada FI	59,400	$1,855	12/31/2023
COLL	59,400	$1,855	12/31/2023
Allspring Global Investments Holdings LLC	45,438	$1,764	03/31/2024
COLL	45,438	$1,764	03/31/2024
Man Group plc	55,979	$1,723	12/31/2023
COLL	55,979	$1,723	12/31/2023
Royal Bank of Canada	50,972	$1,569	12/31/2023
COLL	50,972	$1,569	12/31/2023
Credit Suisse AG	49,868	$1,535	12/31/2023
COLL	49,868	$1,535	12/31/2023
Levin Easterly Partners LLC	49,651	$1,528	12/31/2023
COLL	49,651	$1,528	12/31/2023
HRT Financial LP	48,602	$1,495	12/31/2023
COLL	48,602	$1,495	12/31/2023
Acorn Financial Advisory Services Inc. ADV	46,877	$1,443	12/31/2023
COLL	46,877	$1,443	12/31/2023
Gotham Asset Management LLC	44,862	$1,381	12/31/2023
COLL	44,862	$1,381	12/31/2023
Globeflex Capital L P	44,243	$1,362	12/31/2023
COLL	44,243	$1,362	12/31/2023
SummerHaven Investment Management LLC	34,321	$1,332	03/31/2024
COLL	34,321	$1,332	03/31/2024
Susquehanna International Group LLP	40,712	$1,253	12/31/2023
COLL	40,712	$1,253	12/31/2023
Martingale Asset Management L P	39,489	$1,215	12/31/2023
COLL	39,489	$1,215	12/31/2023
Squarepoint Ops LLC	38,736	$1,192	12/31/2023
COLL	38,736	$1,192	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	38,391	$1,182	12/31/2023
COLL	38,391	$1,182	12/31/2023
Jump Financial LLC	38,300	$1,179	12/31/2023
COLL	38,300	$1,179	12/31/2023
ExodusPoint Capital Management LP	38,252	$1,177	12/31/2023
COLL	38,252	$1,177	12/31/2023
Prudential Financial Inc.	37,669	$1,159	12/31/2023
COLL	37,669	$1,159	12/31/2023
California State Teachers Retirement System	36,735	$1,131	12/31/2023
COLL	36,735	$1,131	12/31/2023
Values First Advisors Inc.	33,865	$1,042	12/31/2023
COLL	33,865	$1,042	12/31/2023
Russell Investments Group Ltd.	32,073	$987	12/31/2023
COLL	32,073	$987	12/31/2023
UBS Asset Management Americas Inc.	30,729	$946	12/31/2023
COLL	30,729	$946	12/31/2023
Thrivent Financial for Lutherans	29,059	$894	12/31/2023
COLL	29,059	$894	12/31/2023
Price T Rowe Associates Inc. MD	28,747	$885	12/31/2023
COLL	28,747	$885	12/31/2023
Wedge Capital Management L L P NC	28,216	$868	12/31/2023
COLL	28,216	$868	12/31/2023
Texas Permanent School Fund	28,172	$867	12/31/2023
COLL	28,172	$867	12/31/2023
Natixis Advisors L.P.	27,886	$858	12/31/2023
COLL	27,886	$858	12/31/2023
Great West Life Assurance Co. Can	27,110	$835	12/31/2023
COLL	27,110	$835	12/31/2023
Citigroup Inc.	25,448	$783	12/31/2023
COLL	25,448	$783	12/31/2023
CWM Advisors LLC	25,367	$781	12/31/2023
COLL	25,367	$781	12/31/2023
Franklin Resources Inc.	24,378	$750	12/31/2023
COLL	24,378	$750	12/31/2023
State of Tennessee Treasury Department	24,290	$748	12/31/2023
COLL	24,290	$748	12/31/2023
Ensign Peak Advisors Inc	23,050	$709	12/31/2023
COLL	23,050	$709	12/31/2023
Cornercap Investment Counsel Inc.	22,002	$677	12/31/2023
COLL	22,002	$677	12/31/2023
HighPoint Advisor Group LLC	16,685	$670	12/31/2023
COLL	16,685	$670	12/31/2023
State of Alaska Department of Revenue	20,063	$617	12/31/2023
COLL	20,063	$617	12/31/2023
Envestnet Asset Management Inc.	19,980	$615	12/31/2023
COLL	19,980	$615	12/31/2023
Illinois Municipal Retirement Fund	19,879	$612	12/31/2023
COLL	19,879	$612	12/31/2023
Deutsche Bank AG	19,247	$592	12/31/2023
COLL	19,247	$592	12/31/2023
American International Group Inc.	18,763	$578	12/31/2023
COLL	18,763	$578	12/31/2023
Bank of America Corp DE	18,546	$571	12/31/2023
COLL	18,546	$571	12/31/2023
SG Americas Securities LLC	18,244	$562	12/31/2023
COLL	18,244	$562	12/31/2023
Yousif Capital Management LLC	18,251	$562	12/31/2023
COLL	18,251	$562	12/31/2023
Captrust Financial Advisors	18,234	$561	12/31/2023
COLL	18,234	$561	12/31/2023
MetLife Investment Management LLC	17,661	$544	12/31/2023
COLL	17,661	$544	12/31/2023
O Shaughnessy Asset Management LLC	17,635	$543	12/31/2023
COLL	17,635	$543	12/31/2023
Mirae Asset Global Investments Co. Ltd.	16,713	$514	12/31/2023
COLL	16,713	$514	12/31/2023
Louisiana State Employees Retirement System	16,300	$502	12/31/2023
COLL	16,300	$502	12/31/2023
Qube Research & Technologies Ltd	16,001	$493	12/31/2023
COLL	16,001	$493	12/31/2023
Petrus Trust Company LTA	15,470	$476	12/31/2023
COLL	15,470	$476	12/31/2023
Comerica Bank	15,435	$475	12/31/2023
COLL	15,435	$475	12/31/2023
Smith Group Asset Management LLC	14,960	$460	12/31/2023
COLL	14,960	$460	12/31/2023
Balyasny Asset Management LLC	14,818	$456	12/31/2023
COLL	14,818	$456	12/31/2023
New York Life Investment Management LLC	14,395	$443	12/31/2023
COLL	14,395	$443	12/31/2023
Voya Investment Management LLC	14,117	$435	12/31/2023
COLL	14,117	$435	12/31/2023
Amalgamated Bank	13,870	$427	12/31/2023
COLL	13,870	$427	12/31/2023
The Manufacturers Life Insurance Company	13,406	$413	12/31/2023
COLL	13,406	$413	12/31/2023
New York State Teachers Retirement System	12,474	$384	12/31/2023
COLL	12,474	$384	12/31/2023
Scientech Research LLC	12,434	$383	12/31/2023
COLL	12,434	$383	12/31/2023
Engineers Gate Manager LP	12,423	$382	12/31/2023
COLL	12,423	$382	12/31/2023
Lazard Asset Management LLC	12,222	$376	12/31/2023
COLL	12,222	$376	12/31/2023
Maryland State Retirement & Pension System	11,852	$365	12/31/2023
COLL	11,852	$365	12/31/2023
Wells Fargo & Company MN	10,989	$338	12/31/2023
COLL	10,989	$338	12/31/2023
Aigen Investment Management LP	10,994	$338	12/31/2023
COLL	10,994	$338	12/31/2023
Teachers Retirement System of The State of Kentucky	10,714	$329	12/31/2023
COLL	10,714	$329	12/31/2023
Brighton Jones LLC	10,642	$328	12/31/2023
COLL	10,642	$328	12/31/2023
ARP Americas LP	10,579	$326	12/31/2023
COLL	10,579	$326	12/31/2023
Quantbot Technologies LP	9,971	$307	12/31/2023
COLL	9,971	$307	12/31/2023
State Board of Administration of Florida Retirement System	9,890	$304	12/31/2023
COLL	9,890	$304	12/31/2023
Everence Capital Management Inc.	9,800	$302	12/31/2023
COLL	9,800	$302	12/31/2023
Arizona State Retirement System	9,710	$299	12/31/2023
COLL	9,710	$299	12/31/2023
Watershed Asset Management L.L.C.	9,546	$294	12/31/2023
COLL	9,546	$294	12/31/2023
Oregon Public Employees Retirement Fund	9,522	$293	12/31/2023
COLL	9,522	$293	12/31/2023
Eastern Bank	9,335	$287	12/31/2023
COLL	9,335	$287	12/31/2023
Ritholtz Wealth Management	9,285	$286	12/31/2023
COLL	9,285	$286	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	8,841	$272	12/31/2023
COLL	8,841	$272	12/31/2023
Deerfield Management Company L.P. Series C	8,667	$267	12/31/2023
COLL	8,667	$267	12/31/2023
ProShare Advisors LLC	8,545	$263	12/31/2023
COLL	8,545	$263	12/31/2023
Johnson Investment Counsel Inc.	8,337	$257	12/31/2023
COLL	8,337	$257	12/31/2023
Teacher Retirement System of Texas	8,025	$247	12/31/2023
COLL	8,025	$247	12/31/2023
Hsbc Holdings PLC	7,744	$239	12/31/2023
COLL	7,744	$239	12/31/2023
Vident Advisory LLC	7,755	$239	12/31/2023
COLL	7,755	$239	12/31/2023
Shell Asset Management Co.	7,652	$236	12/31/2023
COLL	7,652	$236	12/31/2023
Corton Capital Inc.	7,643	$235	12/31/2023
COLL	7,643	$235	12/31/2023
Graham Capital Management L.P.	7,563	$233	12/31/2023
COLL	7,563	$233	12/31/2023
Commonwealth of Pennsylvania Public School Empls Retrmt SYS	7,037	$217	12/31/2023
COLL	7,037	$217	12/31/2023
Centiva Capital LP	6,909	$213	12/31/2023
COLL	6,909	$213	12/31/2023
Strs Ohio	6,400	$196	12/31/2023
COLL	6,400	$196	12/31/2023
Jane Street Group LLC		$179	12/31/2023
COLL	12,521	$385	12/31/2023
Put	6,700	$206	12/31/2023
Assetmark Inc.	5,445	$168	12/31/2023
COLL	5,445	$168	12/31/2023
China Universal Asset Management Co. Ltd.	3,776	$116	12/31/2023
COLL	3,776	$116	12/31/2023
Ameritas Investment Partners Inc.	3,419	$105	12/31/2023
COLL	3,419	$105	12/31/2023
EntryPoint Capital LLC	3,214	$99	12/31/2023
COLL	3,214	$99	12/31/2023
UBS Group AG	3,173	$98	12/31/2023
COLL	3,173	$98	12/31/2023
FMR LLC	2,639	$81	12/31/2023
COLL	2,639	$81	12/31/2023
Vestcor Inc	2,588	$80	12/31/2023
COLL	2,588	$80	12/31/2023
Metropolitan Life Insurance Co NY	2,206	$68	12/31/2023
COLL	2,206	$68	12/31/2023
Nisa Investment Advisors LLC	2,103	$65	12/31/2023
COLL	2,103	$65	12/31/2023
KBC Group NV	1,354	$42	12/31/2023
COLL	1,354	$42	12/31/2023
Gladius Capital Management LP	1,370	$42	12/31/2023
COLL	1,370	$42	12/31/2023
Principal Securities Inc.	1,303	$40	12/31/2023
COLL	1,303	$40	12/31/2023
Point72 Asia Singapore Pte. Ltd.	1,221	$38	12/31/2023
COLL	1,221	$38	12/31/2023
Tower Research Capital LLC TRC	1,096	$34	12/31/2023
COLL	1,096	$34	12/31/2023
West Tower Group LLC	892	$27	12/31/2023
COLL	892	$27	12/31/2023
Advisor Group Holdings Inc.	851	$26	12/31/2023
COLL	851	$26	12/31/2023
EverSource Wealth Advisors LLC	676	$21	12/31/2023
COLL	676	$21	12/31/2023
GAMMA Investing LLC	373	$14	03/31/2024
COLL	373	$14	03/31/2024
The PNC Financial Services Group Inc.	458	$14	12/31/2023
COLL	458	$14	12/31/2023
Covestor Ltd	379	$12	12/31/2023
COLL	379	$12	12/31/2023
Truvestments Capital LLC	358	$11	12/31/2023
COLL	358	$11	12/31/2023
AJOVista LLC	341	$10	12/31/2023
COLL	341	$10	12/31/2023
Key Financial Inc	180	$6	12/31/2023
COLL	180	$6	12/31/2023
Daiwa Securities Group Inc.	127	$4	12/31/2023
COLL	127	$4	12/31/2023
Quadrant Capital Group LLC	142	$4	12/31/2023
COLL	142	$4	12/31/2023
Massmutual Trust Co. FSB ADV	71	$3	03/31/2024
COLL	71	$3	03/31/2024
Signaturefd LLC	71	$2	12/31/2023
COLL	71	$2	12/31/2023
Allworth Financial LP	51	$2	12/31/2023
COLL	51	$2	12/31/2023
Ronald Blue Trust Inc.	51	$2	12/31/2023
COLL	51	$2	12/31/2023
Abich Financial Wealth Management LLC	68	$2	12/31/2023
COLL	68	$2	12/31/2023
Farmers & Merchants Investments Inc.	26	$1	03/31/2024
COLL	26	$1	03/31/2024
CWM LLC	17	$1	03/31/2024
COLL	17	$1	03/31/2024
Fifth Third Bancorp	48	$1	12/31/2023
COLL	48	$1	12/31/2023
Farther Finance Advisors LLC	43	$1	12/31/2023
COLL	43	$1	12/31/2023
Frazier Financial Advisors LLC	35	$1	12/31/2023
COLL	35	$1	12/31/2023
Sachetta LLC	24	$1	12/31/2023
COLL	24	$1	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
Call	0	$0	12/31/2023
COLL	0	$0	12/31/2023
NOTE 2	0	$0	12/31/2023
Parkside Financial Bank & Trust	6	$0	12/31/2023
COLL	6	$0	12/31/2023
Rosenberg Matthew Hamilton	2	$0	12/31/2023
COLL	2	$0	12/31/2023
Group One Trading L.P.		$-93	12/31/2023
Put	6,000	$185	12/31/2023
Call	3,000	$92	12/31/2023
Simplex Trading LLC		$-294	12/31/2023
Put	10,200	$313	12/31/2023
COLL	643	$19	12/31/2023
Wolverine Asset Management LLC	46,100	$-1,419	12/31/2023
Put	46,100	$1,419	12/31/2023