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Gossamer Bio

184 hedge funds and large institutions have $56.3M invested in Gossamer Bio in 2026 Q1 according to their latest regulatory filings, with 46 funds opening new positions, 71 increasing their positions, 49 reducing their positions, and 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

558% more call options, than puts

Call options by funds: $1.24M | Put options by funds: $189K

45% more repeat investments, than reductions

Existing positions increased: 71 | Existing positions reduced: 49

6% less funds holding

Funds holding: 195184 (-11)

9.24% less ownership

Funds ownership: 81.58%72.34% (-9.2%)

13% less first-time investments, than exits

New positions opened: 46 | Existing positions closed: 53

67% less funds holding in top 10

Funds holding in top 10: 31 (-2)

90% less capital invested

Capital invested by funds: $585M → $56.3M (-$529M)

Holders
184
Holders Change
-11
Holders Change %
-5.64%
% of All Funds
2.27%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.01%
New
46
Increased
71
Reduced
49
Closed
53
Calls
$1.24M
Puts
$189K
Net Calls
+$1.05M
Net Calls Change
-$20.4M
Name Holding Trade Value Shares
Change
Change in
Stake
Morgan Stanley
51
Morgan Stanley
New York
$121K -$867K -551,510 -60%
Carson Wealth (CWM LLC)
52
Carson Wealth (CWM LLC)
Nebraska
$105K +$450K +286,038 +842%
ACM
53
ADAR1 Capital Management
Texas
$94.5K +$118K +75,000 +35%
VF
54
Virtu Financial
New York
$86K +$414K +263,212 New
CL
55
Choreo LLC
Illinois
$82.2K +$275K +175,000 +233%
RhumbLine Advisers
56
RhumbLine Advisers
Massachusetts
$71.2K +$2.4K +1,527 +0.7%
Mercer Global Advisors
57
Mercer Global Advisors
Colorado
$62.2K +$260K +165,345 +689%
Millennium Management
58
Millennium Management
New York
$61.6K -$5.34M -3,396,870 -95%
MFG
59
Merit Financial Group
Georgia
$50.7K -$1.16K -737 -0.5%
Russell Investments Group
60
Russell Investments Group
United Kingdom
$47.7K -$40.5K -25,799 -15%
Susquehanna International Group
61
Susquehanna International Group
Pennsylvania
$44.6K +$74.4K +47,318 +53%
T. Rowe Price Associates
62
T. Rowe Price Associates
Maryland
$44K +$29.7K +18,888 +17%
N
63
Nuveen
North Carolina
$43.7K -$276K -175,628 -57%
Los Angeles Capital Management
64
Los Angeles Capital Management
California
$43.1K +$206K +131,216 New
SG Americas Securities
65
SG Americas Securities
New York
$42K +$85.6K +54,439 +73%
Creative Planning
66
Creative Planning
Kansas
$41.3K +$126K +80,016 +175%
Tudor Investment Corp
67
Tudor Investment Corp
Connecticut
$37.9K +$103K +65,237 +130%
HSBC Holdings
68
HSBC Holdings
United Kingdom
$37.8K +$179K +113,943 New
NMC
69
Nine Masts Capital
Hong Kong
$37.7K +$180K +114,766 New
Commonwealth Equity Services
70
Commonwealth Equity Services
Massachusetts
$36.1K +$49.1K +31,222 +40%
Rockefeller Capital Management
71
Rockefeller Capital Management
New York
$35.4K +$73.5K +46,749 +77%
Victory Capital Management
72
Victory Capital Management
Texas
$35.2K +$2.49K +1,587 +2%
BAM
73
BCV Asset Management
$35K +$167K +106,500 New
Cerity Partners
74
Cerity Partners
New York
$35K +$117K +74,605 +234%
QL
75
Quarry LP
New York
$32.9K +$157K +100,000 New