There is a long list of 874 institutional holders of MRNA 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 MRNA by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-MRNA table below, the initial column indicates the name of each top institutional holder of MRNA, with a link to that fund's top holdings. The next columns indicate the amount of MRNA stock held by each of the institutional holders of MRNA, followed by the MRNA 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
Baillie Gifford & Co.	45,654,527	$4,540,343	12/31/2023
MRNA	45,654,527	$4,540,343	12/31/2023
Vanguard Group Inc.	33,907,072	$3,372,058	12/31/2023
MRNA	33,907,072	$3,372,058	12/31/2023
BlackRock Inc.	25,301,692	$2,516,253	12/31/2023
MRNA	25,301,692	$2,516,253	12/31/2023
State Street Corp	14,623,723	$1,454,329	12/31/2023
MRNA	14,623,723	$1,454,329	12/31/2023
Flagship Pioneering Inc.	9,666,038	$961,287	12/31/2023
MRNA	9,666,038	$961,287	12/31/2023
Theleme Partners LLP		$931,195	12/31/2023
MRNA	7,349,456	$730,903	12/31/2023
Call	2,014,000	$200,292	12/31/2023
Wellington Management Group LLP	7,225,579	$718,584	12/31/2023
MRNA	7,225,579	$718,584	12/31/2023
Geode Capital Management LLC	6,549,461	$649,424	12/31/2023
MRNA	6,549,461	$649,424	12/31/2023
FMR LLC	6,393,351	$635,819	12/31/2023
MRNA	6,393,351	$635,819	12/31/2023
Goldman Sachs Group Inc.		$446,363	12/31/2023
MRNA	4,551,626	$452,659	12/31/2023
Put	237,000	$23,570	12/31/2023
Call	173,700	$17,274	12/31/2023
Morgan Stanley	4,389,108	$436,497	12/31/2023
MRNA	4,389,108	$436,497	12/31/2023
Capital World Investors	3,629,389	$360,943	12/31/2023
MRNA	3,629,389	$360,943	12/31/2023
The Manufacturers Life Insurance Company	3,542,967	$352,348	12/31/2023
MRNA	3,542,967	$352,348	12/31/2023
Norges Bank	3,494,874	$347,565	12/31/2023
MRNA	3,494,874	$347,565	12/31/2023
Coatue Management LLC	3,273,052	$325,505	12/31/2023
MRNA	3,273,052	$325,505	12/31/2023
Banque Pictet & Cie SA	3,134,229	$311,699	12/31/2023
MRNA	3,134,229	$311,699	12/31/2023
UBS Asset Management Americas Inc.	2,985,130	$296,871	12/31/2023
MRNA	2,985,130	$296,871	12/31/2023
Northern Trust Corp	2,971,996	$295,565	12/31/2023
MRNA	2,971,996	$295,565	12/31/2023
Invesco Ltd.	2,909,609	$289,361	12/31/2023
MRNA	2,909,609	$289,361	12/31/2023
Legal & General Group Plc	2,830,894	$281,533	12/31/2023
MRNA	2,830,894	$281,533	12/31/2023
JPMorgan Chase & Co.		$262,078	12/31/2023
MRNA	2,528,671	$251,476	12/31/2023
Call	118,700	$11,805	12/31/2023
Put	12,100	$1,203	12/31/2023
Bank of New York Mellon Corp	2,305,976	$245,725	03/31/2024
MRNA	2,305,976	$245,725	03/31/2024
Bellevue Group AG	1,908,420	$189,792	12/31/2023
MRNA	1,908,420	$189,792	12/31/2023
Charles Schwab Investment Management Inc.	1,871,399	$186,111	12/31/2023
MRNA	1,871,399	$186,111	12/31/2023
Pictet Asset Management Holding SA	1,797,450	$178,756	12/31/2023
MRNA	1,797,450	$178,756	12/31/2023
Mawer Investment Management Ltd.	1,795,949	$178,607	12/31/2023
MRNA	1,795,949	$178,607	12/31/2023
Sumitomo Mitsui Trust Holdings Inc.	1,545,829	$164,724	03/31/2024
MRNA	1,545,829	$164,724	03/31/2024
DZ BANK AG Deutsche Zentral Genossenschafts Bank Frankfurt am Main		$160,152	12/31/2023
Call	1,500,000	$148,443	12/31/2023
MRNA	117,743	$11,709	12/31/2023
Susquehanna International Group LLP		$146,560	12/31/2023
Call	3,333,100	$331,477	12/31/2023
Put	2,299,000	$228,636	12/31/2023
MRNA	439,606	$43,719	12/31/2023
Dimensional Fund Advisors LP	1,307,164	$129,984	12/31/2023
MRNA	1,307,164	$129,984	12/31/2023
ARK Investment Management LLC	1,217,383	$129,724	03/31/2024
MRNA	1,217,383	$129,724	03/31/2024
Barclays PLC		$125,988	12/31/2023
MRNA	1,108,164	$110,206	12/31/2023
Call	158,700	$15,782	12/31/2023
Price T Rowe Associates Inc. MD	1,107,495	$110,141	12/31/2023
MRNA	1,107,495	$110,141	12/31/2023
Deutsche Bank AG	1,035,110	$102,942	12/31/2023
MRNA	1,035,110	$102,942	12/31/2023
Swiss National Bank	1,011,600	$100,604	12/31/2023
MRNA	1,011,600	$100,604	12/31/2023
Nuveen Asset Management LLC	920,649	$91,559	12/31/2023
MRNA	920,649	$91,559	12/31/2023
First Trust Advisors LP	893,316	$88,840	12/31/2023
MRNA	893,316	$88,840	12/31/2023
Credit Suisse AG	852,032	$84,735	12/31/2023
MRNA	852,032	$84,735	12/31/2023
Mitsubishi UFJ Trust & Banking Corp	843,632	$83,899	12/31/2023
MRNA	843,632	$83,899	12/31/2023
Amundi	754,360	$83,115	12/31/2023
MRNA	754,360	$83,115	12/31/2023
Bank of America Corp DE		$76,805	12/31/2023
MRNA	758,099	$75,393	12/31/2023
Call	20,400	$2,029	12/31/2023
Put	6,200	$617	12/31/2023
Royal Bank of Canada	727,359	$72,336	12/31/2023
MRNA	727,359	$72,336	12/31/2023
National Pension Service	712,056	$70,814	12/31/2023
MRNA	712,056	$70,814	12/31/2023
UBS Group AG		$68,558	12/31/2023
MRNA	873,269	$86,847	12/31/2023
Put	730,600	$72,658	12/31/2023
Call	546,700	$54,369	12/31/2023
Assetmark Inc.	619,152	$61,575	12/31/2023
MRNA	619,152	$61,575	12/31/2023
Capital International Investors	613,850	$61,047	12/31/2023
MRNA	613,850	$61,047	12/31/2023
Jane Street Group LLC		$59,782	12/31/2023
Put	824,800	$82,026	12/31/2023
Call	729,900	$72,589	12/31/2023
MRNA	696,018	$69,219	12/31/2023
Unisphere Establishment	600,000	$59,670	12/31/2023
MRNA	600,000	$59,670	12/31/2023
California Public Employees Retirement System	591,073	$58,782	12/31/2023
MRNA	591,073	$58,782	12/31/2023
Bank of Montreal Can		$58,725	12/31/2023
MRNA	598,171	$59,572	12/31/2023
Put	29,800	$2,968	12/31/2023
Call	21,300	$2,121	12/31/2023