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Spero Therapeutics

38 hedge funds and large institutions have $10.9M invested in Spero Therapeutics in 2025 Q1 according to their latest regulatory filings, with 1 funds opening new positions, 9 increasing their positions, 10 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less ownership

Funds ownership:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

33% less capital invested

Capital invested by funds: $16.1M → $10.9M (-$5.27M)

92% less first-time investments, than exits

New positions opened: 1 | Existing positions closed: 12

Holders
38
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$7K
Puts
$2K
Net Calls
Net Calls Change

Top Buyers

1 +$31.5K
2 +$27.3K
3 +$15.5K
4
EWA
EP Wealth Advisors
California
+$11.9K
5
Northern Trust
Northern Trust
Illinois
+$10.4K

Top Sellers

1 -$121K
2 -$97K
3 -$80.3K
4
Jane Street
Jane Street
New York
-$54.5K
5
VF
Virtu Financial
New York
-$47K