There is a long list of 104 institutional holders of FGEN within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of FGEN by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-FGEN table below, the initial column indicates the name of each top institutional holder of FGEN, with a link to that fund's top holdings. The next columns indicate the amount of FGEN stock held by each of the institutional holders of FGEN, followed by the FGEN position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Primecap Management Co. CA	14,471,928	$12,826	12/31/2023
FGEN	14,471,928	$12,826	12/31/2023
Armistice Capital LLC	9,764,000	$8,654	12/31/2023
FGEN	9,764,000	$8,654	12/31/2023
BlackRock Inc.	7,205,300	$6,386	12/31/2023
FGEN	7,205,300	$6,386	12/31/2023
Vanguard Group Inc.	7,044,149	$6,243	12/31/2023
FGEN	7,044,149	$6,243	12/31/2023
Jacobs Levy Equity Management Inc.	2,489,506	$2,206	12/31/2023
FGEN	2,489,506	$2,206	12/31/2023
Acadian Asset Management LLC	2,468,928	$2,187	12/31/2023
FGEN	2,468,928	$2,187	12/31/2023
Citadel Advisors LLC		$2,159	12/31/2023
FGEN	2,390,681	$2,119	12/31/2023
Call	63,500	$56	12/31/2023
Put	17,900	$16	12/31/2023
Two Sigma Investments LP	2,101,283	$1,862	12/31/2023
FGEN	2,101,283	$1,862	12/31/2023
Geode Capital Management LLC	2,018,281	$1,789	12/31/2023
FGEN	2,018,281	$1,789	12/31/2023
D. E. Shaw & Co. Inc.	1,874,188	$1,661	12/31/2023
FGEN	1,874,188	$1,661	12/31/2023
State Street Corp	1,810,680	$1,605	12/31/2023
FGEN	1,810,680	$1,605	12/31/2023
Two Sigma Advisers LP	1,800,400	$1,596	12/31/2023
FGEN	1,800,400	$1,596	12/31/2023
Point72 Asset Management L.P.		$1,418	12/31/2023
Call	1,600,000	$1,418	12/31/2023
AQR Capital Management LLC	1,165,261	$1,033	12/31/2023
FGEN	1,165,261	$1,033	12/31/2023
Assenagon Asset Management S.A.	428,848	$1,008	03/31/2024
FGEN	428,848	$1,008	03/31/2024
Morgan Stanley	816,525	$724	12/31/2023
FGEN	816,525	$724	12/31/2023
Bank of New York Mellon Corp	298,018	$700	03/31/2024
FGEN	298,018	$700	03/31/2024
Zurcher Kantonalbank Zurich Cantonalbank	294,407	$692	03/31/2024
FGEN	294,407	$692	03/31/2024
Northern Trust Corp	777,443	$689	12/31/2023
FGEN	777,443	$689	12/31/2023
Pennant Investors LP	768,400	$681	12/31/2023
FGEN	768,400	$681	12/31/2023
683 Capital Management LLC	700,254	$621	12/31/2023
FGEN	700,254	$621	12/31/2023
Renaissance Technologies LLC	683,412	$606	12/31/2023
FGEN	683,412	$606	12/31/2023
Simplex Trading LLC		$539	03/31/2024
FGEN	182,683	$429	03/31/2024
Call	85,100	$199	03/31/2024
Put	38,200	$89	03/31/2024
Millennium Management LLC	607,409	$538	12/31/2023
FGEN	607,409	$538	12/31/2023
Jane Street Group LLC		$351	12/31/2023
FGEN	376,277	$333	12/31/2023
Call	20,400	$18	12/31/2023
HRT Financial LP	355,770	$315	12/31/2023
FGEN	355,770	$315	12/31/2023
FMR LLC	341,150	$302	12/31/2023
FGEN	341,150	$302	12/31/2023
Ameriprise Financial Inc.	284,302	$252	12/31/2023
FGEN	284,302	$252	12/31/2023
Bank of America Corp DE	264,477	$234	12/31/2023
FGEN	264,477	$234	12/31/2023
BNP Paribas Arbitrage SA	263,307	$233	12/31/2023
FGEN	263,307	$233	12/31/2023
Susquehanna International Group LLP	244,083	$216	12/31/2023
FGEN	244,083	$216	12/31/2023
HighTower Advisors LLC	237,515	$210	12/31/2023
FGEN	237,515	$210	12/31/2023
Barclays PLC	235,418	$209	12/31/2023
FGEN	235,418	$209	12/31/2023
Goldman Sachs Group Inc.	226,562	$201	12/31/2023
FGEN	226,562	$201	12/31/2023
Charles Schwab Investment Management Inc.	209,142	$185	12/31/2023
FGEN	209,142	$185	12/31/2023
Voya Investment Management LLC	203,661	$181	12/31/2023
FGEN	203,661	$181	12/31/2023
Vantage Consulting Group Inc	195,707	$173	12/31/2023
FGEN	195,707	$173	12/31/2023
UBS Group AG		$161	12/31/2023
Call	100,000	$89	12/31/2023
FGEN	81,079	$72	12/31/2023
Public Employees Retirement System of Ohio	176,593	$157	12/31/2023
FGEN	176,593	$157	12/31/2023
Citigroup Inc.		$151	12/31/2023
Call	122,200	$108	12/31/2023
FGEN	95,560	$85	12/31/2023
Put	47,600	$42	12/31/2023
Rhumbline Advisers	154,563	$137	12/31/2023
FGEN	154,563	$137	12/31/2023
Lighthouse Investment Partners LLC	153,764	$136	12/31/2023
FGEN	153,764	$136	12/31/2023
Caption Management LLC	126,200	$112	12/31/2023
FGEN	126,200	$112	12/31/2023
Accel Wealth Management	43,955	$103	03/31/2024
FGEN	43,955	$103	03/31/2024
SG Americas Securities LLC	112,783	$100	12/31/2023
FGEN	112,783	$100	12/31/2023
Price T Rowe Associates Inc. MD	111,404	$99	12/31/2023
FGEN	111,404	$99	12/31/2023
Sei Investments Co.	107,900	$96	12/31/2023
FGEN	107,900	$96	12/31/2023
CI Private Wealth LLC	102,103	$90	12/31/2023
FGEN	102,103	$90	12/31/2023
Deutsche Bank AG	95,284	$85	12/31/2023
FGEN	95,284	$85	12/31/2023
Engineers Gate Manager LP	85,005	$75	12/31/2023
FGEN	85,005	$75	12/31/2023