There is a long list of 122 institutional holders of TNGX 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 TNGX by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-TNGX table below, the initial column indicates the name of each top institutional holder of TNGX, with a link to that fund's top holdings. The next columns indicate the amount of TNGX stock held by each of the institutional holders of TNGX, followed by the TNGX 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
TRV GP IV LLC	19,363,975	$191,703	12/31/2023
TNGX	19,363,975	$191,703	12/31/2023
EcoR1 Capital LLC	13,330,736	$131,974	12/31/2023
TNGX	13,330,736	$131,974	12/31/2023
FMR LLC	9,787,350	$96,895	12/31/2023
TNGX	9,787,350	$96,895	12/31/2023
Boxer Capital LLC	8,198,642	$81,167	12/31/2023
TNGX	8,198,642	$81,167	12/31/2023
Nextech Invest AG	5,533,980	$54,786	12/31/2023
TNGX	5,533,980	$54,786	12/31/2023
Southpoint Capital Advisors LP	5,276,699	$52,239	12/31/2023
TNGX	5,276,699	$52,239	12/31/2023
BlackRock Inc.	3,949,276	$39,098	12/31/2023
TNGX	3,949,276	$39,098	12/31/2023
Adage Capital Partners GP L.L.C.	3,400,000	$33,660	12/31/2023
TNGX	3,400,000	$33,660	12/31/2023
Vanguard Group Inc.	2,979,212	$29,494	12/31/2023
TNGX	2,979,212	$29,494	12/31/2023
Bain Capital Life Sciences Investors LLC	2,892,663	$28,637	12/31/2023
TNGX	2,892,663	$28,637	12/31/2023
RTW Investments LP	1,966,752	$19,471	12/31/2023
TNGX	1,966,752	$19,471	12/31/2023
Deerfield Management Company L.P. Series C	1,540,000	$15,246	12/31/2023
TNGX	1,540,000	$15,246	12/31/2023
Casdin Capital LLC	1,188,349	$11,765	12/31/2023
TNGX	1,188,349	$11,765	12/31/2023
Perceptive Advisors LLC	1,111,870	$11,008	12/31/2023
TNGX	1,111,870	$11,008	12/31/2023
Geode Capital Management LLC	1,097,102	$10,862	12/31/2023
TNGX	1,097,102	$10,862	12/31/2023
State Street Corp	978,938	$9,691	12/31/2023
TNGX	978,938	$9,691	12/31/2023
Soleus Capital Management L.P.	847,145	$8,387	12/31/2023
TNGX	847,145	$8,387	12/31/2023
Baker BROS. Advisors LP	750,000	$7,425	12/31/2023
TNGX	750,000	$7,425	12/31/2023
Bessemer Group Inc.	708,384	$7,013	12/31/2023
TNGX	708,384	$7,013	12/31/2023
ArrowMark Colorado Holdings LLC	708,385	$7,013	12/31/2023
TNGX	708,385	$7,013	12/31/2023
Samsara BioCapital LLC	630,000	$6,237	12/31/2023
TNGX	630,000	$6,237	12/31/2023
Ensign Peak Advisors Inc	495,213	$4,903	12/31/2023
TNGX	495,213	$4,903	12/31/2023
Invesco Ltd.	467,253	$4,626	12/31/2023
TNGX	467,253	$4,626	12/31/2023
Goldman Sachs Group Inc.	449,215	$4,447	12/31/2023
TNGX	449,215	$4,447	12/31/2023
Nuveen Asset Management LLC	419,546	$4,154	12/31/2023
TNGX	419,546	$4,154	12/31/2023
Northern Trust Corp	412,404	$4,083	12/31/2023
TNGX	412,404	$4,083	12/31/2023
Charles Schwab Investment Management Inc.	369,066	$3,654	12/31/2023
TNGX	369,066	$3,654	12/31/2023
Affinity Asset Advisors LLC	300,274	$2,973	12/31/2023
TNGX	300,274	$2,973	12/31/2023
Millennium Management LLC	294,558	$2,916	12/31/2023
TNGX	294,558	$2,916	12/31/2023
T. Rowe Price Investment Management Inc.	286,694	$2,839	12/31/2023
TNGX	286,694	$2,839	12/31/2023
Mass General Brigham Inc	354,192	$2,812	03/31/2024
TNGX	354,192	$2,812	03/31/2024
Two Sigma Investments LP	236,392	$2,340	12/31/2023
TNGX	236,392	$2,340	12/31/2023
Citadel Advisors LLC		$2,003	12/31/2023
TNGX	201,815	$1,998	12/31/2023
Call	500	$5	12/31/2023
Barclays PLC	201,899	$1,999	12/31/2023
TNGX	201,899	$1,999	12/31/2023
Tang Capital Management LLC	200,000	$1,980	12/31/2023
TNGX	200,000	$1,980	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	180,598	$1,788	12/31/2023
TNGX	180,598	$1,788	12/31/2023
Wellington Management Group LLP	170,228	$1,685	12/31/2023
TNGX	170,228	$1,685	12/31/2023
Morgan Stanley	143,407	$1,420	12/31/2023
TNGX	143,407	$1,420	12/31/2023
Renaissance Technologies LLC	121,000	$1,198	12/31/2023
TNGX	121,000	$1,198	12/31/2023
Voloridge Investment Management LLC	114,357	$1,132	12/31/2023
TNGX	114,357	$1,132	12/31/2023
Cubist Systematic Strategies LLC	101,332	$1,003	12/31/2023
TNGX	101,332	$1,003	12/31/2023
Bank of New York Mellon Corp	126,250	$1,002	03/31/2024
TNGX	126,250	$1,002	03/31/2024
Fisher Asset Management LLC	100,691	$997	12/31/2023
TNGX	100,691	$997	12/31/2023
Squarepoint Ops LLC	99,808	$988	12/31/2023
TNGX	99,808	$988	12/31/2023
Jane Street Group LLC	86,224	$854	12/31/2023
TNGX	86,224	$854	12/31/2023
Swiss National Bank	80,200	$794	12/31/2023
TNGX	80,200	$794	12/31/2023
Victory Capital Management Inc.	72,640	$719	12/31/2023
TNGX	72,640	$719	12/31/2023
American Century Companies Inc.	70,409	$697	12/31/2023
TNGX	70,409	$697	12/31/2023
Rhumbline Advisers	70,390	$697	12/31/2023
TNGX	70,390	$697	12/31/2023
Parkman Healthcare Partners LLC	65,679	$650	12/31/2023
TNGX	65,679	$650	12/31/2023