On this page, we present all of the funds holding BCYC from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding BCYC, with a link to that fund's top holdings. The next columns indicate the amount of BCYC stock held by each of the funds holding BCYC, followed by the BCYC position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 99 funds holding BCYC within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Paradigm Biocapital Advisors LP. For more details on the positions held by Paradigm Biocapital Advisors LP (or by any of the other funds holding BCYC), click the fund name in the "Holder" column of the funds-holding-BCYC table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Paradigm Biocapital Advisors LP	3,707,001	$67,023	12/31/2023
BCYC	3,707,001	$67,023	12/31/2023
Deep Track Capital LP	3,490,506	$63,108	12/31/2023
BCYC	3,490,506	$63,108	12/31/2023
Jefferies Financial Group Inc.	1,948,000	$35,220	12/31/2023
BCYC	1,948,000	$35,220	12/31/2023
Baker BROS. Advisors LP	1,790,390	$32,370	12/31/2023
BCYC	1,790,390	$32,370	12/31/2023
Tybourne Capital Management HK Ltd.	1,650,320	$29,838	12/31/2023
BCYC	1,650,320	$29,838	12/31/2023
First Light Asset Management LLC	1,550,471	$28,033	12/31/2023
BCYC	1,550,471	$28,033	12/31/2023
Armistice Capital LLC	1,536,000	$27,771	12/31/2023
BCYC	1,536,000	$27,771	12/31/2023
Morgan Stanley	1,029,225	$18,608	12/31/2023
BCYC	1,029,225	$18,608	12/31/2023
Polar Capital Holdings Plc	1,004,535	$18,162	12/31/2023
BCYC	1,004,535	$18,162	12/31/2023
Westfield Capital Management Co. LP	917,304	$16,585	12/31/2023
BCYC	917,304	$16,585	12/31/2023
Suvretta Capital Management LLC	914,476	$16,534	12/31/2023
BCYC	914,476	$16,534	12/31/2023
Candriam Luxembourg S.C.A.	869,258	$15,717	12/31/2023
BCYC	869,258	$15,717	12/31/2023
Ridgeback Capital Investments L.P.	844,235	$15,264	12/31/2023
BCYC	844,235	$15,264	12/31/2023
RA Capital Management L.P.	800,000	$14,464	12/31/2023
BCYC	800,000	$14,464	12/31/2023
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	782,998	$14,157	12/31/2023
BCYC	782,998	$14,157	12/31/2023
Verition Fund Management LLC	740,539	$13,389	12/31/2023
BCYC	740,539	$13,389	12/31/2023
AXA S.A.	554,086	$10,018	12/31/2023
BCYC	554,086	$10,018	12/31/2023
BlackRock Inc.	501,623	$9,069	12/31/2023
BCYC	501,623	$9,069	12/31/2023
Bank of America Corp DE	461,331	$8,341	12/31/2023
BCYC	461,331	$8,341	12/31/2023
Camber Capital Management LP	450,000	$8,136	12/31/2023
BCYC	450,000	$8,136	12/31/2023
Kennedy Capital Management Inc.	416,485	$7,530	12/31/2023
BCYC	416,485	$7,530	12/31/2023
Nomura Holdings Inc.	400,000	$7,232	12/31/2023
BCYC	400,000	$7,232	12/31/2023
Platinum Investment Management Ltd.	362,080	$6,546	12/31/2023
BCYC	362,080	$6,546	12/31/2023
Parkman Healthcare Partners LLC	312,889	$5,657	12/31/2023
BCYC	312,889	$5,657	12/31/2023
Citadel Advisors LLC		$5,254	12/31/2023
BCYC	294,465	$5,324	12/31/2023
Put	16,100	$291	12/31/2023
Call	12,200	$221	12/31/2023
Price T Rowe Associates Inc. MD	276,837	$5,006	12/31/2023
BCYC	276,837	$5,006	12/31/2023
FMR LLC	266,347	$4,816	12/31/2023
BCYC	266,347	$4,816	12/31/2023
Millennium Management LLC	249,135	$4,504	12/31/2023
BCYC	249,135	$4,504	12/31/2023
Point72 Asset Management L.P.	225,895	$4,084	12/31/2023
BCYC	225,895	$4,084	12/31/2023
Rubric Capital Management LP	205,423	$3,714	12/31/2023
BCYC	205,423	$3,714	12/31/2023
Trexquant Investment LP	196,323	$3,550	12/31/2023
BCYC	196,323	$3,550	12/31/2023
Jane Street Group LLC		$3,181	12/31/2023
Call	93,000	$1,681	12/31/2023
BCYC	82,950	$1,500	12/31/2023
Man Group plc	174,074	$3,147	12/31/2023
BCYC	174,074	$3,147	12/31/2023
HighVista Strategies LLC	158,293	$2,862	12/31/2023
BCYC	158,293	$2,862	12/31/2023
Walleye Capital LLC	150,126	$2,714	12/31/2023
BCYC	150,126	$2,714	12/31/2023
Handelsbanken Fonder AB	139,800	$2,528	12/31/2023
BCYC	139,800	$2,528	12/31/2023
Legal & General Group Plc	132,805	$2,400	12/31/2023
BCYC	132,805	$2,400	12/31/2023
DAFNA Capital Management LLC	122,200	$2,209	12/31/2023
BCYC	122,200	$2,209	12/31/2023
Cubist Systematic Strategies LLC	113,901	$2,059	12/31/2023
BCYC	113,901	$2,059	12/31/2023
Voya Investment Management LLC	113,150	$2,046	12/31/2023
BCYC	113,150	$2,046	12/31/2023
Schonfeld Strategic Advisors LLC	107,000	$1,935	12/31/2023
BCYC	107,000	$1,935	12/31/2023
Renaissance Technologies LLC	105,500	$1,907	12/31/2023
BCYC	105,500	$1,907	12/31/2023
Two Sigma Investments LP	103,628	$1,874	12/31/2023
BCYC	103,628	$1,874	12/31/2023
Soleus Capital Management L.P.	95,000	$1,718	12/31/2023
BCYC	95,000	$1,718	12/31/2023
UBS Oconnor LLC		$1,557	12/31/2023
BCYC	73,601	$1,331	12/31/2023
Call	125,000	$226	12/31/2023
Comerica Bank	81,850	$1,480	12/31/2023
BCYC	81,850	$1,480	12/31/2023
Jump Financial LLC	77,332	$1,398	12/31/2023
BCYC	77,332	$1,398	12/31/2023
Two Sigma Advisers LP	62,207	$1,125	12/31/2023
BCYC	62,207	$1,125	12/31/2023
Walleye Trading LLC	50,241	$908	12/31/2023
BCYC	50,241	$908	12/31/2023
BNP Paribas Arbitrage SA	36,851	$666	12/31/2023
BCYC	36,851	$666	12/31/2023
TD Asset Management Inc.	35,186	$636	12/31/2023
BCYC	35,186	$636	12/31/2023
Wexford Capital LP	34,879	$631	12/31/2023
BCYC	34,879	$631	12/31/2023
Fishman Jay A Ltd. MI	34,500	$624	12/31/2023
BCYC	34,500	$624	12/31/2023
Woodstock Corp	24,981	$622	03/31/2024
BCYC	24,981	$622	03/31/2024
Allianz Asset Management GmbH	30,600	$553	12/31/2023
BCYC	30,600	$553	12/31/2023
DekaBank Deutsche Girozentrale	30,000	$537	12/31/2023
BCYC	30,000	$537	12/31/2023
State Street Corp	29,566	$535	12/31/2023
BCYC	29,566	$535	12/31/2023
Harbor Capital Advisors Inc.	26,688	$483	12/31/2023
BCYC	26,688	$483	12/31/2023
Susquehanna International Group LLP		$471	12/31/2023
Call	27,000	$488	12/31/2023
Put	25,500	$461	12/31/2023
BCYC	24,535	$444	12/31/2023
Tocqueville Asset Management L.P.	23,350	$422	12/31/2023
BCYC	23,350	$422	12/31/2023
ADAR1 Capital Management LLC		$375	12/31/2023
BCYC	74,825	$1,353	12/31/2023
Put	54,100	$978	12/31/2023
Bellevue Group AG	20,000	$362	12/31/2023
BCYC	20,000	$362	12/31/2023
HRT Financial LP	19,913	$360	12/31/2023
BCYC	19,913	$360	12/31/2023
Geode Capital Management LLC	18,837	$341	12/31/2023
BCYC	18,837	$341	12/31/2023
EntryPoint Capital LLC	18,495	$334	12/31/2023
BCYC	18,495	$334	12/31/2023
Exchange Traded Concepts LLC	12,421	$309	03/31/2024
BCYC	12,421	$309	03/31/2024
Citigroup Inc.	15,628	$283	12/31/2023
BCYC	15,628	$283	12/31/2023
Barclays PLC	15,032	$272	12/31/2023
BCYC	15,032	$272	12/31/2023
PEAK6 Investments LLC		$271	12/31/2023
BCYC	9,000	$163	12/31/2023
Call	6,000	$108	12/31/2023
Horizon Kinetics Asset Management LLC	14,396	$260	12/31/2023
BCYC	14,396	$260	12/31/2023
The Manufacturers Life Insurance Company	13,173	$238	12/31/2023
BCYC	13,173	$238	12/31/2023
UBS Group AG	11,150	$202	12/31/2023
BCYC	11,150	$202	12/31/2023
AtonRa Partners	10,435	$189	12/31/2023
BCYC	10,435	$189	12/31/2023
Group One Trading L.P.		$184	12/31/2023
BCYC	26,264	$475	12/31/2023
Put	18,100	$327	12/31/2023
Call	2,000	$36	12/31/2023
L & S Advisors Inc	10,190	$184	12/31/2023
BCYC	10,190	$184	12/31/2023
JPMorgan Chase & Co.	10,106	$183	12/31/2023
BCYC	10,106	$183	12/31/2023
Deutsche Bank AG	8,372	$151	12/31/2023
BCYC	8,372	$151	12/31/2023
The PNC Financial Services Group Inc.	7,560	$137	12/31/2023
BCYC	7,560	$137	12/31/2023
Virtus ETF Advisers LLC	6,172	$112	12/31/2023
BCYC	6,172	$112	12/31/2023
Aquatic Capital Management LLC	4,500	$81	12/31/2023
BCYC	4,500	$81	12/31/2023
HighMark Wealth Management LLC	4,435	$80	12/31/2023
BCYC	4,435	$80	12/31/2023
China Universal Asset Management Co. Ltd.	4,001	$72	12/31/2023
BCYC	4,001	$72	12/31/2023
Arete Wealth Advisors LLC	3,772	$68	12/31/2023
BCYC	3,772	$68	12/31/2023
Natixis	2,629	$48	12/31/2023
BCYC	2,629	$48	12/31/2023
Tower Research Capital LLC TRC	2,328	$42	12/31/2023
BCYC	2,328	$42	12/31/2023
First Manhattan Co.	2,200	$40	12/31/2023
BCYC	2,200	$40	12/31/2023
Advisor Group Holdings Inc.	1,983	$36	12/31/2023
BCYC	1,983	$36	12/31/2023
Clear Street Markets LLC		$27	12/31/2023
Call	1,500	$27	12/31/2023
GAMMA Investing LLC	871	$22	03/31/2024
BCYC	871	$22	03/31/2024
Coppell Advisory Solutions LLC	1,076	$19	12/31/2023
BCYC	1,076	$19	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	458	$8	12/31/2023
BCYC	458	$8	12/31/2023
Rhumbline Advisers	410	$7	12/31/2023
BCYC	410	$7	12/31/2023
Quantbot Technologies LP	400	$7	12/31/2023
BCYC	400	$7	12/31/2023
Royal Bank of Canada	346	$6	12/31/2023
BCYC	346	$6	12/31/2023
Daiwa Securities Group Inc.	103	$2	12/31/2023
BCYC	103	$2	12/31/2023
Macroview Investment Management LLC	126	$2	12/31/2023
BCYC	126	$2	12/31/2023
Advisory Services Network LLC	115	$2	12/31/2023
BCYC	115	$2	12/31/2023
Ronald Blue Trust Inc.	138	$2	12/31/2023
BCYC	138	$2	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
BCYC	0	$0	12/31/2023
Call	0	$0	12/31/2023
Northwestern Mutual Wealth Management Co.	5	$0	12/31/2023
BCYC	5	$0	12/31/2023