MBX Biosciences (MBX) Institutional Ownership

$66.33 -0.02 (-0.03%)

As of 08/21/2026 04:00 PM Eastern

Number of Institutional Buyers (last 12 months): 86
Total Institutional Inflows (last 12 months): $666.24M

Number of Institutional Sellers (last 12 months): 28
Total Institutional Outflows (last 12 months): $177.02M

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MBX Institutional Buying and Selling by Quarter

MBX Biosciences Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/21/2026	AXQ Capital LP	7,757	$428K	0.0%	N/A	0.016%
8/21/2026	Braidwell LP	710,880	$39.24M	1.5%	-52.4%	1.476%
8/20/2026	Moore Capital Management LP	64,893	$3.58M	0.1%	N/A	0.135%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	21,344	$1.18M	0.0%	+194.9%	0.044%
8/19/2026	Wellington Management Group LLP	4,977,523	$274.76M	0.0%	+55.9%	10.335%
8/17/2026	Seven Fleet Capital Management LP	6,000	$331K	0.1%	N/A	0.012%
8/17/2026	Bank of America Corp DE	298,927	$16.50M	0.0%	N/A	0.621%
8/15/2026	Jupiter Topco LLC	10,300	$568K	0.0%	N/A	0.021%
8/15/2026	Elmind Capital LP	91,000	$5.02B	1.3%	N/A	0.189%
8/14/2026	Canada Pension Plan Investment Board	5,200	$287K	0.0%	N/A	0.011%
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8/14/2026	Parkman Healthcare Partners LLC	800,173	$44.17M	4.5%	N/A	1.661%
8/14/2026	Legal & General Group Plc	21,583	$1.19M	0.0%	N/A	0.045%
8/14/2026	The Manufacturers Life Insurance Company	66,112	$3.65M	0.0%	N/A	0.137%
8/14/2026	Group One Trading LLC	5,231	$289K	0.0%	N/A	0.011%
8/14/2026	Algert Global LLC	42,070	$2.32M	0.0%	+16.8%	0.087%
8/12/2026	Quantbot Technologies LP	3,855	$213K	0.0%	N/A	0.008%
8/7/2026	BlackRock Inc.	3,323,672	$183.47M	0.0%	N/A	6.983%
8/7/2026	Deutsche Bank AG	31,693	$1.75M	0.0%	N/A	0.067%
8/6/2026	Bank of New York Mellon Corp	88,927	$4.91M	0.0%	N/A	0.187%
8/6/2026	State of Wyoming	1,055	$58K	0.0%	N/A	0.002%
7/10/2026	Tema ETFs LLC	5,010	$277K	0.0%	-43.6%	0.011%
5/19/2026	Bank of America Corp DE	28,750	$858K	0.0%	-24.1%	0.060%
5/19/2026	Stempoint Capital LP	499,469	$14.91M	2.8%	+535.8%	1.049%
5/19/2026	Janus Henderson Group PLC	10,300	$308K	0.0%	N/A	0.022%
5/18/2026	California State Teachers Retirement System	22,765	$680K	0.0%	+1,197.9%	0.048%
5/18/2026	Rock Springs Capital Management LP	287,967	$8.60M	0.5%	+1.9%	0.605%
5/18/2026	EcoR1 Capital LLC	777,000	$23.19M	1.0%	-63.4%	1.632%
5/16/2026	The Manufacturers Life Insurance Company	90,634	$2.71M	0.0%	+30.3%	0.190%
5/16/2026	Orbimed Advisors LLC	3,637,887	$108.59M	2.0%	-7.6%	7.643%
5/15/2026	Affinity Asset Advisors LLC	150,000	$4.48M	0.2%	-40.0%	0.315%
5/14/2026	Sei Investments Co.	8,989	$268K	0.0%	+17.4%	0.019%
5/7/2026	Dimensional Fund Advisors LP	46,753	$1.40M	0.0%	N/A	0.098%
5/7/2026	Swiss National Bank	44,400	$1.33M	0.0%	N/A	0.093%
5/5/2026	Bank of New York Mellon Corp	80,222	$2.40M	0.0%	+6.6%	0.169%
5/1/2026	Candriam S.C.A.	294,374	$8.79M	0.0%	N/A	0.619%
4/29/2026	Koa Wealth Management LLC	17,913	$535K	0.4%	-2.7%	0.038%
4/25/2026	Strs Ohio	1,600	$48K	0.0%	+128.6%	0.003%
4/22/2026	Sterling Capital Management LLC	949	$28K	0.0%	-42.2%	0.002%
4/21/2026	Aaron Wealth Advisors LLC	1,168,176	$34.87M	2.0%	+1,568.8%	2.459%
4/16/2026	SG Americas Securities LLC	3,386	$101K	0.0%	-28.9%	0.007%
Louis Navellier: My #1 AI stock for 2026 (name & ticker inside) (Ad) Louis Navellier's Stock Grader system helped him flag Nvidia before its 82,000% run and has identified the top S&P 500 stock for 12 years running—and today, he's giving away his #1 AI stock pick for 2026, free. This company's sales are up 28% year over year, it holds over 30,000 patents in wireless and video technology, and it just earned an A-rating in his proprietary Stock Grader system that has cost him $9 million to build and maintain. Get the name and ticker of Louis Navellier's #1 AI stock free
2/26/2026	Seven Fleet Capital Management LP	18,200	$574K	0.4%	N/A	0.041%
2/19/2026	Invesco Ltd.	21,203	$669K	0.0%	+79.9%	0.047%
2/18/2026	KVP Capital Advisors LP	121,524	$3.83M	3.7%	N/A	0.271%
2/18/2026	XTX Topco Ltd	20,139	$635K	0.0%	-47.5%	0.045%
2/18/2026	Virtus Investment Advisers LLC	8,910	$281K	0.1%	-16.1%	0.020%
2/18/2026	Wellington Management Group LLP	3,349,961	$105.66M	0.0%	-30.5%	7.461%
2/18/2026	Orbimed Advisors LLC	3,935,203	$124.12M	2.6%	-1.7%	8.764%
2/18/2026	Opaleye Management Inc.	260,000	$8.20M	1.1%	+2.8%	0.579%
2/18/2026	Millennium Management LLC	462,049	$14.57M	0.0%	-32.1%	1.029%
2/18/2026	Elmind Capital LP	211,000	$6.66M	2.0%	N/A	0.470%
2/18/2026	Cormorant Asset Management LP	1,120,000	$35.33M	1.6%	-8.6%	2.494%
2/18/2026	Balyasny Asset Management L.P.	119,726	$3.78M	0.0%	+366.9%	0.267%
2/18/2026	Bridgeway Capital Management LLC	10,000	$315K	0.0%	-29.6%	0.022%
2/17/2026	Schonfeld Strategic Advisors LLC	167,125	$5.27M	0.0%	-40.9%	0.372%
2/17/2026	AQR Capital Management LLC	31,409	$991K	0.0%	+99.2%	0.070%
2/17/2026	Braidwell LP	1,018,600	$32.13M	1.0%	N/A	2.268%
2/17/2026	Trexquant Investment LP	24,268	$765K	0.0%	N/A	0.054%
2/17/2026	Price T Rowe Associates Inc. MD	840,506	$26.51M	0.0%	-12.0%	1.872%
2/17/2026	Osaic Holdings Inc.	77,601	$2.45M	0.0%	N/A	0.173%
2/17/2026	California State Teachers Retirement System	1,754	$55K	0.0%	+64.7%	0.004%
2/17/2026	Russell Investments Group Ltd.	2,856	$90K	0.0%	+92.8%	0.006%
2/17/2026	ExodusPoint Capital Management LP	57,005	$1.80M	0.0%	-43.0%	0.127%
2/17/2026	Royal Bank of Canada	1,532	$49K	0.0%	+59.6%	0.003%
2/17/2026	Graham Capital Management L.P.	11,254	$355K	0.0%	N/A	0.025%
2/16/2026	Squarepoint Ops LLC	46,702	$1.47M	0.0%	N/A	0.104%
2/16/2026	Verition Fund Management LLC	57,575	$1.82M	0.0%	-643.2%	0.128%
2/16/2026	Eventide Asset Management LLC	890,000	$28.07M	0.4%	N/A	1.982%
2/16/2026	Barclays PLC	52,691	$1.66M	0.0%	+143.6%	0.117%
2/13/2026	The Manufacturers Life Insurance Company	69,551	$2.16M	0.0%	+1.7%	0.155%
2/13/2026	Affinity Asset Advisors LLC	250,000	$7.89M	0.4%	+51.5%	0.557%
2/13/2026	Schroder Investment Management Group	73,736	$2.28M	0.0%	-12.0%	0.164%
2/13/2026	Rafferty Asset Management LLC	8,113	$256K	0.0%	N/A	0.018%
2/13/2026	Charles Schwab Investment Management Inc.	222,180	$7.01M	0.0%	+30.7%	0.495%
2/13/2026	Police & Firemen s Retirement System of New Jersey	7,520	$237K	0.0%	+66.8%	0.017%
2/13/2026	State Street Corp	672,740	$21.22M	0.0%	+110.7%	1.498%
2/13/2026	Wells Fargo & Company MN	31,931	$1.01M	0.0%	+171.6%	0.071%
2/13/2026	Platinum Investment Management Ltd.	43,597	$1.38M	0.3%	-37.2%	0.097%
2/12/2026	MetLife Investment Management LLC	16,018	$505K	0.0%	+45.4%	0.036%
2/12/2026	Renaissance Technologies LLC	32,644	$1.03M	0.0%	N/A	0.073%
2/12/2026	Alps Advisors Inc.	36,872	$1.16M	0.0%	+119.0%	0.082%
2/12/2026	Nuveen LLC	75,565	$2.38M	0.0%	+241.3%	0.168%
2/11/2026	Deutsche Bank AG	20,027	$632K	0.0%	+83.3%	0.045%
2/11/2026	Fox Run Management L.L.C.	23,820	$751K	0.1%	N/A	0.053%
2/11/2026	Cerity Partners LLC	21,323	$673K	0.0%	N/A	0.047%
2/11/2026	Los Angeles Capital Management LLC	10,360	$327K	0.0%	N/A	0.023%
2/10/2026	TD Asset Management Inc	101,450	$3.20M	0.0%	-14.6%	0.226%
2/10/2026	Goldman Sachs Group Inc.	331,938	$10.47M	0.0%	-7.3%	0.739%
2/10/2026	AXQ Capital LP	6,463	$204K	0.0%	N/A	0.014%
2/10/2026	Intech Investment Management LLC	6,858	$216K	0.0%	N/A	0.015%
2/9/2026	Geode Capital Management LLC	649,391	$20.49M	0.0%	+37.0%	1.446%
Louis Navellier: My #1 AI stock for 2026 (name & ticker inside) (Ad) Louis Navellier's Stock Grader system helped him flag Nvidia before its 82,000% run and has identified the top S&P 500 stock for 12 years running—and today, he's giving away his #1 AI stock pick for 2026, free. This company's sales are up 28% year over year, it holds over 30,000 patents in wireless and video technology, and it just earned an A-rating in his proprietary Stock Grader system that has cost him $9 million to build and maintain. Get the name and ticker of Louis Navellier's #1 AI stock free
2/6/2026	ProShare Advisors LLC	7,187	$227K	0.0%	N/A	0.016%
1/29/2026	Koa Wealth Management LLC	18,413	$581K	0.4%	-31.1%	0.041%
1/29/2026	UBS Group AG	281,212	$8.87M	0.0%	+363.1%	0.626%
1/29/2026	Vanguard Group Inc.	1,817,811	$57.33M	0.0%	+8.4%	4.049%
1/29/2026	China Universal Asset Management Co. Ltd.	15,317	$483K	0.0%	+206.3%	0.034%
1/27/2026	GF Fund Management CO. LTD.	882	$28K	0.0%	N/A	0.002%
1/26/2026	Mirae Asset Global Investments Co. Ltd.	2,182	$69K	0.0%	N/A	0.005%
1/26/2026	CWM LLC	1,784	$56K	0.0%	+28.9%	0.004%
1/21/2026	Aaron Wealth Advisors LLC	70,000	$2.21M	0.1%	+40.0%	0.156%
1/14/2026	Goelzer Investment Management Inc.	221,672	$6.99M	0.3%	N/A	0.494%

MBX Institutional Ownership - Frequently Asked Questions

During the previous two years, 134 institutional investors and hedge funds held shares of MBX Biosciences. The most heavily invested institutionals were Elmind Capital LP ($5.02B), Wellington Management Group LLP ($274.76M), BlackRock Inc. ($183.47M), Frazier Life Sciences Management L.P. ($155.50M), Orbimed Advisors LLC ($108.59M), NEA Management Company LLC ($93.90M), and Vanguard Group Inc. ($57.33M).Learn more on MBX Biosciences' institutional investors.

Of the 123 institutional investors that purchased MBX Biosciences' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Wellington Management Group LLP ($7.28M), Frazier Life Sciences Management L.P. ($5.99M), NEA Management Company LLC ($3.61M), BlackRock Inc. ($3.32M), RA Capital Management L.P. ($1.51M), Franklin Resources Inc. ($1.39M), and MPM Bioimpact LLC ($1.29M).

Institutional investors have bought a total of 19,053,073 shares in the last 24 months. This purchase volume represents approximately $666.24M in transactions.

Of the 28 institutional investors that sold MBX Biosciences' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wellington Management Group LLP ($1.47M), EcoR1 Capital LLC ($1.35M), Braidwell LP ($781.59K), Schonfeld Strategic Advisors LLC ($464.29K), Orbimed Advisors LLC ($365K), Millennium Management LLC ($218.37K), and Price T Rowe Associates Inc. MD ($114.22K).

Institutional investors have sold a total of 5,379,890 shares in the last 24 months. This volume of shares sold represents approximately $177.02M in transactions.

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Institutional ownership data for NASDAQ:MBX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/21/2026. New 13F filings are added each quarter as they're published.

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MBX Biosciences (MBX) Institutional Ownership

MBX Institutional Buying and Selling by Quarter

MBX Biosciences Major Shareholders & Ownership History

MBX Institutional Ownership - Frequently Asked Questions

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MBX Biosciences (MBX) Institutional Ownership

Institutional Ownership Changes (13F Filings) for MBX Biosciences (NASDAQ:MBX)

MBX Institutional Buying and Selling by Quarter

MBX Biosciences Major Shareholders & Ownership History

MBX Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of MBX shares?

Which institutional investors have been buying MBX Biosciences' stock?

How much institutional buying is happening at MBX Biosciences?

Which of MBX Biosciences' major shareholders have been selling company stock?

How much institutional selling is happening at MBX Biosciences?

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