There is a long list of 63 institutional holders of GRCL 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 GRCL by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-GRCL table below, the initial column indicates the name of each top institutional holder of GRCL, with a link to that fund's top holdings. The next columns indicate the amount of GRCL stock held by each of the institutional holders of GRCL, followed by the GRCL 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
Temasek Holdings Private Ltd	9,588,863	$96,272	12/31/2023
GRCL	9,588,863	$96,272	12/31/2023
Vivo Capital LLC	9,546,485	$95,847	12/31/2023
GRCL	9,546,485	$95,847	12/31/2023
Orbimed Advisors LLC	9,308,726	$93,460	12/31/2023
GRCL	9,308,726	$93,460	12/31/2023
Sio Capital Management LLC	5,001,580	$50,216	12/31/2023
GRCL	5,001,580	$50,216	12/31/2023
TCG Crossover Management LLC	4,514,786	$45,328	12/31/2023
GRCL	4,514,786	$45,328	12/31/2023
Tang Capital Management LLC	2,191,417	$22,002	12/31/2023
GRCL	2,191,417	$22,002	12/31/2023
Baker BROS. Advisors LP	2,080,000	$20,883	12/31/2023
GRCL	2,080,000	$20,883	12/31/2023
Pentwater Capital Management LP	1,461,000	$14,668	12/31/2023
GRCL	1,461,000	$14,668	12/31/2023
Pivotal bioVenture Partners Investment Advisor LLC	1,375,000	$13,805	12/31/2023
GRCL	1,375,000	$13,805	12/31/2023
Adage Capital Partners GP L.L.C.	1,350,000	$13,554	12/31/2023
GRCL	1,350,000	$13,554	12/31/2023
TIG Advisors LLC	1,279,595	$12,847	12/31/2023
GRCL	1,279,595	$12,847	12/31/2023
Alpine Associates Management Inc.	1,278,454	$12,836	12/31/2023
GRCL	1,278,454	$12,836	12/31/2023
Octagon Capital Advisors LP	596,611	$5,990	12/31/2023
GRCL	596,611	$5,990	12/31/2023
BlackRock Inc.	539,973	$5,421	12/31/2023
GRCL	539,973	$5,421	12/31/2023
Qube Research & Technologies Ltd	517,274	$5,193	12/31/2023
GRCL	517,274	$5,193	12/31/2023
Bank of America Corp DE	511,953	$5,140	12/31/2023
GRCL	511,953	$5,140	12/31/2023
LMR Partners LLP	510,001	$5,120	12/31/2023
GRCL	510,001	$5,120	12/31/2023
Sphera Funds Management LTD.	502,936	$5,049	12/31/2023
GRCL	502,936	$5,049	12/31/2023
MMCAP International Inc. SPC	451,172	$4,528	12/31/2023
GRCL	451,172	$4,528	12/31/2023
Harvest Management LLC	400,000	$4,016	12/31/2023
GRCL	400,000	$4,016	12/31/2023
Hudson Bay Capital Management LP	266,667	$2,677	12/31/2023
GRCL	266,667	$2,677	12/31/2023
Marshall Wace LLP	192,465	$1,932	12/31/2023
GRCL	192,465	$1,932	12/31/2023
Millennium Management LLC	191,269	$1,920	12/31/2023
GRCL	191,269	$1,920	12/31/2023
CNH Partners LLC	130,779	$1,313	12/31/2023
GRCL	130,779	$1,313	12/31/2023
UBS Group AG	125,681	$1,262	12/31/2023
GRCL	125,681	$1,262	12/31/2023
Weiss Asset Management LP	109,400	$1,098	12/31/2023
GRCL	109,400	$1,098	12/31/2023
Two Sigma Investments LP	87,598	$879	12/31/2023
GRCL	87,598	$879	12/31/2023
Morgan Stanley	78,119	$784	12/31/2023
GRCL	78,119	$784	12/31/2023
CSS LLC IL	73,000	$733	12/31/2023
GRCL	73,000	$733	12/31/2023
Invesco Ltd.	62,863	$631	12/31/2023
GRCL	62,863	$631	12/31/2023
Cubist Systematic Strategies LLC	59,063	$593	12/31/2023
GRCL	59,063	$593	12/31/2023
Fifth Lane Capital LP	58,336	$586	12/31/2023
GRCL	58,336	$586	12/31/2023
Citadel Advisors LLC		$519	12/31/2023
GRCL	57,801	$580	12/31/2023
Put	6,600	$66	12/31/2023
Call	500	$5	12/31/2023
JBF Capital Inc.	50,000	$502	12/31/2023
GRCL	50,000	$502	12/31/2023
Pathstone Holdings LLC	49,158	$494	12/31/2023
GRCL	49,158	$494	12/31/2023
Geode Capital Management LLC	43,334	$435	12/31/2023
GRCL	43,334	$435	12/31/2023
Prelude Capital Management LLC	40,974	$411	12/31/2023
GRCL	40,974	$411	12/31/2023
Exome Asset Management LLC	40,974	$411	12/31/2023
GRCL	40,974	$411	12/31/2023
Gabelli Funds LLC	39,850	$400	12/31/2023
GRCL	39,850	$400	12/31/2023
Renaissance Technologies LLC	39,300	$395	12/31/2023
GRCL	39,300	$395	12/31/2023
GABELLI & Co INVESTMENT ADVISERS INC.	34,300	$344	12/31/2023
GRCL	34,300	$344	12/31/2023
Two Sigma Advisers LP	33,600	$337	12/31/2023
GRCL	33,600	$337	12/31/2023
GTS Securities LLC	25,144	$252	12/31/2023
GRCL	25,144	$252	12/31/2023
Royal Bank of Canada	25,030	$251	12/31/2023
GRCL	25,030	$251	12/31/2023
Oasis Management Co Ltd.	25,000	$251	12/31/2023
GRCL	25,000	$251	12/31/2023
PenderFund Capital Management Ltd.	22,570	$227	12/31/2023
GRCL	22,570	$227	12/31/2023
Yakira Capital Management Inc.	21,924	$220	12/31/2023
GRCL	21,924	$220	12/31/2023
Balyasny Asset Management LLC	20,182	$203	12/31/2023
GRCL	20,182	$203	12/31/2023
Goldman Sachs Group Inc.	18,112	$182	12/31/2023
GRCL	18,112	$182	12/31/2023
JPMorgan Chase & Co.	13,999	$141	12/31/2023
GRCL	13,999	$141	12/31/2023