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Seres Therapeutics
MCRB

Overview Fund Activity

64 hedge funds and large institutions have $43.1M invested in Seres Therapeutics in 2025 Q1 according to their latest regulatory filings, with 6 funds opening new positions, 17 increasing their positions, 15 reducing their positions, and 11 closing their positions.

Holders
64
Holders Change
-5
Holders Change %
-7.25%
% of All Funds
0.87%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
6
Increased
17
Reduced
15
Closed
11
Calls
$132K
Puts
$39K
Net Calls
+$93K
Net Calls Change
-$2.38M

Top Buyers

1
UBS Group
1
UBS Group
Switzerland
$1.02M
2
Susquehanna International Group
2
Susquehanna International Group
Pennsylvania
$502K
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$4.26M
4
TCM
4
Tang Capital Management
California
$143K
5
Vontobel Holding
5
Vontobel Holding
Switzerland
$760K

Top Sellers

1
Morgan Stanley
1
Morgan Stanley
New York
$105K
2
Millennium Management
2
Millennium Management
New York
$20.7K
3
HighTower Advisors
3
HighTower Advisors
Illinois
$0
4
Jane Street
4
Jane Street
New York
$0
5
CF
5
Cantor Fitzgerald
New York
$26.2K
Name Market Value Shares Shares
Change 		Shares
Change %
FP
1
Flagship Pioneering
Massachusetts
$16.2M 23,117,045 – –
Fidelity Investments
2
Fidelity Investments
Massachusetts
$15.3M 21,889,432 +77,735 +0.4%
Vanguard Group
3
Vanguard Group
Pennsylvania
$4.26M 6,091,999 +218,119 +4%
BlackRock
4
BlackRock
New York
$1.23M 1,762,157 – –
Geode Capital Management
5
Geode Capital Management
Massachusetts
$1.13M 1,618,772 +108,340 +7%
UBS Group
6
UBS Group
Switzerland
$1.02M 1,456,161 +1,113,844 +325%
Vontobel Holding
7
Vontobel Holding
Switzerland
$760K 1,085,966 +147,671 +16%
Charles Schwab
8
Charles Schwab
California
$584K 834,107 -31,718 -4%
Susquehanna International Group
9
Susquehanna International Group
Pennsylvania
$502K 717,146 +389,338 +119%
State Street
10
State Street
Massachusetts
$351K 500,748 – –
LPC
11
Lion Point Capital
New York
$239K 340,761 – –
Northern Trust
12
Northern Trust
Illinois
$211K 301,564 +38,881 +15%
BCM
13
Bridgeway Capital Management
Texas
$175K 250,000 – –
TCM
14
Tang Capital Management
California
$143K 203,904 +203,904 New
Morgan Stanley
15
Morgan Stanley
New York
$105K 149,604 -1,863,647 -93%
Invesco
16
Invesco
Georgia
$95.6K 136,572 +89,995 +193%
PWA
17
Providence Wealth Advisors
Illinois
$71.4K 105,000 – –
LPL Financial
18
LPL Financial
California
$66.6K 95,137 +350 +0.4%
Goldman Sachs
19
Goldman Sachs
New York
$52.2K 74,629 +21,679 +41%
SS
20
SBI Securities
Japan
$48.8K 69,664 +48,013 +222%
Tudor Investment Corp
21
Tudor Investment Corp
Connecticut
$43.4K 61,977 – –
SSA
22
Schonfeld Strategic Advisors
New York
$35.9K 51,300 -49,400 -49%
VPIM
23
Vanguard Personalized Indexing Management
California
$35.5K 50,720 -20,416 -29%
EGM
24
Engineers Gate Manager
New York
$33.4K 47,637 -37,349 -44%
AAS
25
Avantax Advisory Services
Texas
$31.6K 45,179 – –
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