There is a long list of 142 institutional holders of SENS 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 SENS by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-SENS table below, the initial column indicates the name of each top institutional holder of SENS, with a link to that fund's top holdings. The next columns indicate the amount of SENS stock held by each of the institutional holders of SENS, followed by the SENS 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
Vanguard Group Inc.	22,369,324	$12,753	12/31/2023
SENS	22,369,324	$12,753	12/31/2023
BlackRock Inc.	12,161,140	$6,933	12/31/2023
SENS	12,161,140	$6,933	12/31/2023
Masters Capital Management LLC	7,000,000	$3,991	12/31/2023
SENS	7,000,000	$3,991	12/31/2023
Geode Capital Management LLC	5,402,197	$3,080	12/31/2023
SENS	5,402,197	$3,080	12/31/2023
Charles Schwab Investment Management Inc.	2,999,250	$1,710	12/31/2023
SENS	2,999,250	$1,710	12/31/2023
State Street Corp	1,765,815	$1,007	12/31/2023
SENS	1,765,815	$1,007	12/31/2023
AXA S.A.	1,198,600	$683	12/31/2023
SENS	1,198,600	$683	12/31/2023
Citadel Advisors LLC		$602	12/31/2023
SENS	775,050	$442	12/31/2023
Call	397,700	$227	12/31/2023
Put	118,200	$67	12/31/2023
Northern Trust Corp	998,591	$569	12/31/2023
SENS	998,591	$569	12/31/2023
Point72 Asset Management L.P.		$559	12/31/2023
SENS	614,166	$350	12/31/2023
Call	366,700	$209	12/31/2023
Susquehanna International Group LLP		$538	12/31/2023
SENS	839,315	$478	12/31/2023
Call	201,500	$115	12/31/2023
Put	95,800	$55	12/31/2023
Renaissance Technologies LLC	912,100	$520	12/31/2023
SENS	912,100	$520	12/31/2023
Millennium Management LLC	909,977	$519	12/31/2023
SENS	909,977	$519	12/31/2023
Mirae Asset Global Investments Co. Ltd.	698,803	$398	12/31/2023
SENS	698,803	$398	12/31/2023
Pathstone Holdings LLC	510,000	$291	12/31/2023
SENS	510,000	$291	12/31/2023
Wells Fargo & Company MN	453,436	$259	12/31/2023
SENS	453,436	$259	12/31/2023
Cantor Fitzgerald L. P.	366,938	$209	12/31/2023
SENS	366,938	$209	12/31/2023
Group One Trading L.P.		$196	12/31/2023
Call	290,900	$166	12/31/2023
SENS	175,193	$100	12/31/2023
Put	122,100	$70	12/31/2023
Cubist Systematic Strategies LLC	327,916	$187	12/31/2023
SENS	327,916	$187	12/31/2023
Price T Rowe Associates Inc. MD	316,200	$181	12/31/2023
SENS	316,200	$181	12/31/2023
Qube Research & Technologies Ltd	280,252	$160	12/31/2023
SENS	280,252	$160	12/31/2023
Wealthcare Advisory Partners LLC	253,000	$134	03/31/2024
SENS	253,000	$134	03/31/2024
Bank of America Corp DE	234,031	$133	12/31/2023
SENS	234,031	$133	12/31/2023
Morgan Stanley	227,268	$130	12/31/2023
SENS	227,268	$130	12/31/2023
Jane Street Group LLC		$109	12/31/2023
SENS	145,357	$83	12/31/2023
Call	46,300	$26	12/31/2023
FMR LLC	187,288	$107	12/31/2023
SENS	187,288	$107	12/31/2023
Tudor Investment Corp Et Al	174,383	$99	12/31/2023
SENS	174,383	$99	12/31/2023
GTS Securities LLC		$99	12/31/2023
Call	173,500	$99	12/31/2023
Newbridge Financial Services Group Inc.	138,400	$74	03/31/2024
SENS	138,400	$74	03/31/2024
Commonwealth Equity Services LLC	128,703	$73	12/31/2023
SENS	128,703	$73	12/31/2023
Advisor Group Holdings Inc.	97,923	$56	12/31/2023
SENS	97,923	$56	12/31/2023
Principal Financial Group Inc.	95,655	$55	12/31/2023
SENS	95,655	$55	12/31/2023
Stifel Financial Corp	87,956	$50	12/31/2023
SENS	87,956	$50	12/31/2023
Tower Research Capital LLC TRC	87,317	$50	12/31/2023
SENS	87,317	$50	12/31/2023
Royal Bank of Canada	86,150	$49	12/31/2023
SENS	86,150	$49	12/31/2023
Creative Planning	84,344	$48	12/31/2023
SENS	84,344	$48	12/31/2023
Perkins Capital Management Inc.	77,500	$44	12/31/2023
SENS	77,500	$44	12/31/2023
Raymond James Financial Services Advisors Inc.	72,789	$39	03/31/2024
SENS	72,789	$39	03/31/2024
Ausdal Financial Partners Inc.	72,000	$38	03/31/2024
SENS	72,000	$38	03/31/2024
RPO LLC	65,573	$37	12/31/2023
SENS	65,573	$37	12/31/2023
Victory Capital Management Inc.	62,577	$36	12/31/2023
SENS	62,577	$36	12/31/2023
Jasper Ridge Partners L.P.	60,379	$34	12/31/2023
SENS	60,379	$34	12/31/2023
Two Sigma Securities LLC	55,937	$32	12/31/2023
SENS	55,937	$32	12/31/2023
Johnson & Johnson	54,621	$31	12/31/2023
SENS	54,621	$31	12/31/2023
Bank of New York Mellon Corp	53,698	$29	03/31/2024
SENS	53,698	$29	03/31/2024
Cornerstone Wealth Management LLC	53,750	$29	03/31/2024
SENS	53,750	$29	03/31/2024
Wolverine Trading LLC		$29	12/31/2023
Call	82,500	$47	12/31/2023
Put	30,800	$18	12/31/2023
Simplex Trading LLC		$28	03/31/2024
Call	69,000	$36	03/31/2024
Put	15,800	$8	03/31/2024
SG Americas Securities LLC	48,433	$28	12/31/2023
SENS	48,433	$28	12/31/2023
One Capital Management LLC	50,000	$28	12/31/2023
SENS	50,000	$28	12/31/2023