Seres Therapeutics, Inc.

MCRB

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001609809

SEC filings (opens in a new tab)

In the last 90 days, Seres Therapeutics, Inc. insiders filed 0 open-market purchases and 4 sales; 35 institutions reported holding it in 13F filings for Q2 2026, worth $17.9M in total; no superinvestor holds it.

Q2 2023 vs. Q1 2023

How the institutions holding Seres Therapeutics, Inc. changed between Q1 2023 and Q2 2023.

All holders in Q2 2023 All holders in Q1 2023

13F holders of MCRB: Q1 2023 compared with Q2 2023
Measure	Q1 2023	Q2 2023	Change
Holders	123	138	+15
Shares	104.7M	112.3M	+7.57M (+7.2%)
Value	$593.9M	$538.1M	−$55.9M (−9.4%)

New holders (36)

Institutions that held Seres Therapeutics, Inc. at the end of Q2 2023 but not at the end of Q1 2023.

Institutions new to MCRB in Q2 2023
Institution	Shares	Value	% of portfolio
Soleus Capital Management, L.P.	2,045,983	$9.80M	1.09%
Great Point Partners LLC	938,067	$4.49M	0.90%
ExodusPoint Capital Management, LP	594,895	$2.85M	0.03%
Woodline Partners LP	243,595	$1.17M	0.01%
Schonfeld Strategic Advisors LLC	222,257	$1.06M	0.01%
Prudential Financial Inc	206,145	$987.4K	0.00%
Alpha DNA Investment Management LLC	138,536	$663.6K	0.38%
Parallax Volatility Advisers, L.P.	134,901	$646.2K	0.02%
Occudo Quantitative Strategies LP	102,608	$491.5K	0.05%
Natixis	99,000	$474.2K	0.00%
Cantor Fitzgerald, L. P.	97,407	$466.6K	0.01%
AE Wealth Management LLC	95,188	$456.0K	0.00%
Mach-1 Financial Group, Inc.	94,961	$454.9K	0.18%
Corton Capital Inc.	65,772	$315.0K	0.15%
Clear Creek Financial Management, LLC	54,200	$259.6K	0.04%
Cambridge Investment Research Advisors, Inc.	44,844	$215.0K	0.00%
Dynamic Technology Lab Private Ltd	43,631	$209.0K	0.03%
Delphia (USA) Inc.	33,913	$162.4K	0.26%
Kestra Advisory Services, LLC	31,381	$150.3K	0.00%
Graham Capital Management, L.P.	24,881	$119.2K	0.00%
Jump Financial, LLC	22,516	$107.9K	0.00%
AQR Capital Management LLC	19,707	$94.4K	0.00%
Creative Planning	17,304	$82.9K	0.00%
Auour Investments LLC	17,000	$81.4K	0.03%
Alpine Global Management, LLC	14,166	$67.9K	0.02%
Man Group plc	13,181	$63.1K	0.00%
Arete Wealth Advisors, LLC	12,500	$60.0K	0.01%
Aigen Investment Management, LP	11,113	$53.2K	0.01%
Raymond James & Associates	10,052	$48.1K	0.00%
Diversified Trust Co	10,000	$47.9K	0.00%
Coppell Advisory Solutions LLC	8,342	$39.4K	0.01%
Massmutual Trust Co FSB	914	$4.38K	0.00%
First Horizon Advisors, Inc.	900	$4.31K	0.00%
Fiduciary Alliance LLC	232	$1.11K	0.00%
Impact Partnership Wealth, LLC	209	$1.00K	0.00%
ICA Group Wealth Management, LLC	75	$359	0.00%

Sold out (21)

Institutions that held Seres Therapeutics, Inc. at the end of Q1 2023 and filed for Q2 2023 without it.

Institutions that sold out of MCRB in Q2 2023
Institution	Shares, Q1 2023	Value, Q1 2023
Kynam Capital Management, LP	768,913	$4.36M
Renaissance Technologies LLC	398,200	$2.26M
Walleye Capital LLC	362,324	$2.05M
Silverarc Capital Management, LLC	232,525	$1.32M
Atom Investors LP	90,388	$512.5K
Advisory Research Inc	73,553	$417.0K
Tudor Investment Corp Et Al	66,595	$378.0K
Hennion & Walsh Asset Management, Inc.	61,090	$346.0K
HRT Financial LP	58,661	$332.0K
SG Americas Securities, LLC	43,684	$248.0K
Group One Trading, L.P.	30,094	$170.6K
Fox Run Management, L.L.C.	16,448	$93.3K
Nebula Research & Development LLC	11,893	$67.4K
Walleye Trading LLC	10,198	$57.8K
Quadrant Capital Group LLC	2,101	$11.9K
Orion Capital Management LLC	1,000	$5.67K
Crewe Advisors LLC	676	$3.83K
Signaturefd, LLC	339	$1.92K
US Bancorp	175	$992
Grey Fox Wealth Advisors, LLC	100	$567
Belpointe Asset Management LLC	49	$278