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Seres Therapeutics
MCRB
MCRB
33 hedge funds and large institutions have $20.5M invested in Seres Therapeutics in 2026 Q1 according to their latest regulatory filings, with 5 funds opening new positions, 10 increasing their positions, 8 reducing their positions, and 7 closing their positions.
New
Increased
Maintained
Reduced
Closed
25% more repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 8
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
2.93% less ownership
Funds ownership: 26.99% → 24.06% (-2.9%)
8% less funds holding
Funds holding: 36 → 33 (-3)
29% less first-time investments, than exits
New positions opened: 5 | Existing positions closed: 7
29% less call options, than puts
Call options by funds: $958K | Put options by funds: $1.35M
44% less capital invested
Capital invested by funds: $36.4M → $20.5M (-$15.9M)
Holders
33
Holders Change
-3
Holders Change %
-8.33%
% of All Funds
0.41%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
5
Increased
10
Reduced
8
Closed
7
Calls
$958K
Puts
$1.35M
Net Calls
-$389K
Net Calls Change
-$4.78M
Top Buyers
| 1 |
American Century Companies
Kansas City,
Missouri
|
+$539K |
| 2 |
Vontobel Holding
Zurich,
Switzerland
|
+$413K |
| 3 |
Marshall Wace
London,
United Kingdom
|
+$227K |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$32.8K |
| 5 |
Simplex Trading
Chicago,
Illinois
|
+$21.5K |
