13FBOX
GOSSAMER BIO INC COM · 13F Institutional Holdings
Options Calculator Rankings
G

GOSSAMER BIO INC COM

GOSS
Institutions
172
Combined AUM (Q2 2026)
$61.2M
Combined Shares (Q2 2026)
373.1M
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+240.6M
88 · 26 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-41.6M
94 · 47 Exit · ≈
⚖️ Net
+199.0M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$61.2M
Institutions
172
New Buys
26
Adds
62
Reduces
47
Exits
47
Unchanged
37
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
D. E. Shaw & Co., Inc.
<0.01%<0.01%#21$6.7M41.0M$127,928389,431+40.6M+10,417.73%Add
683 Capital Management, LLC
0.32%0.09%#3$6.5M39.2M$1.6M5.0M+34.2M+683.98%Add
DeepCurrents Investment Group LLC
0.21%#4$6.0M37.7M$00+37.7MNew Buy
Context Capital Management, LLC
0.09%#12$4.8M28.9M$00+28.9MNew Buy
Worth Venture Partners, LLC
8.71%#1$4.1M25.0M$00+25.0MNew Buy
AQR CAPITAL MANAGEMENT LLC
<0.01%<0.01%#42$2.6M15.6M$3.3M10.1M+5.5M+54.34%Add
GSA CAPITAL PARTNERS LLP
0.16%0.07%#6$2.5M15.0M$1.1M3.3M+11.7M+360.54%Add
WOLVERINE ASSET MANAGEMENT LLC
0.02%<0.01%#13$2.1M12.9M$2,9569,000+12.9M+143,174.96%Add
RENAISSANCE TECHNOLOGIES LLC
<0.01%<0.01%#23$1.9M11.6M$400,0701.2M+10.4M+854.94%Add
Kalehua Capital Management LLC
1.32%2.38%#2$1.8M11.1M$3.4M10.2M+913,070+8.92%Add
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%<0.01%#104$1.6M9.4M$3.1M9.4M+21,430+0.23%Add
ARCH Venture Management, LLC
0.12%0.39%#7$1.3M8.1M$2.6M8.1M00.00%Unchanged
BARCLAYS PLC
<0.01%<0.01%#66$1.3M7.8M$1.0M3.1M+4.8M+155.48%Add
Octagon Capital Advisors LP
0.11%0.28%#8$1.3M7.8M$2.5M7.8M00.00%Unchanged
BlackRock, Inc.
<0.01%<0.01%#122$1.3M7.7M$5.5M16.8M-9.2M-54.42%Reduce
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
<0.01%#50$1.2M7.6M$00+7.6MNew Buy
TWO SIGMA INVESTMENTS, LP
<0.01%<0.01%#43$1.2M7.4M$1.6M4.8M+2.7M+55.45%Add
Samsara BioCapital, LLC
0.1%0.23%#10$1.2M7.2M$2.4M7.2M00.00%Unchanged
Qube Research & Technologies Ltd
<0.01%<0.01%#38$1.2M7.1M$1.6M4.9M+2.1M+43.68%Add
Corient Private Wealth LLC
<0.01%<0.01%#47$925,9595.6M$1.3M4.0M+1.6M+41.15%Add
Siren, L.L.C.
0.02%0.05%#14$857,3965.2M$1.7M5.2M00.00%Unchanged
Hillhouse Capital Advisors, Ltd.
0.1%0.1%#9$818,7275.0M$1.6M5.0M00.00%Unchanged
UBS Group AG
<0.01%<0.01%#89$510,4743.1M$619,6991.9M+1.2M+64.25%Add
Squarepoint Ops LLC
<0.01%<0.01%#54$420,7802.6M$1.1M3.4M-842,379-24.78%Reduce
GEODE CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#115$408,7062.5M$1.6M4.9M-2.5M-49.76%Reduce
MILLENNIUM MANAGEMENT LLC
<0.01%<0.01%#74$395,4732.4M$61,567187,418+2.2M+1,181.96%Add
MB Generational Wealth, LLC
0.18%0.28%#5$364,9922.2M$503,3091.5M+685,309+44.73%Add
JACOBS LEVY EQUITY MANAGEMENT, INC
<0.01%<0.01%#35$360,0462.2M$556,8601.7M+492,243+29.04%Add
MARSHALL WACE, LLP
<0.01%#64$338,3992.1M$00+2.1MNew Buy
Alyeska Investment Group, L.P.
<0.01%<0.01%#44$337,6672.1M$673,8992.1M00.00%Unchanged
ACADIAN ASSET MANAGEMENT LLC
<0.01%<0.01%#60$294,9851.8M$1.7M5.3M-3.5M-66.04%Reduce
HSBC HOLDINGS PLC
<0.01%<0.01%#77$267,3891.6M$37,806113,943+1.5M+1,289.39%Add
SUSQUEHANNA INTERNATIONAL GROUP, LLP
<0.01%<0.01%#121$256,2981.6M$524,1241.6M+1,976+0.12%Add
Ensign Peak Advisors, Inc
<0.01%<0.01%#56$238,8311.5M$559,1481.7M-251,146-14.75%Reduce
VANGUARD FIDUCIARY TRUST CO
<0.01%<0.01%#96$205,4901.2M$462,0101.4M-158,893-11.31%Reduce
JPMORGAN CHASE & CO
<0.01%<0.01%#135$201,4951.2M$29,66192,690+1.1M+1,225.53%Add
DEUTSCHE BANK AG\
<0.01%<0.01%#93$188,0951.1M$430,9421.3M-199,445-15.27%Reduce
GOLDMAN SACHS GROUP INC
<0.01%<0.01%#126$185,7431.1M$387,8091.2M-52,093-4.41%Reduce
STATE STREET CORP
<0.01%<0.01%#147$183,4831.1M$1.4M4.4M-3.3M-74.60%Reduce
Hennion & Walsh Asset Management, Inc.
0.01%0.01%#18$180,8811.1M$272,234828,719+270,195+32.60%Add
NEA Management Company, LLC
0.01%0.02%#15$164,6001.0M$328,5001.0M00.00%Unchanged
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
<0.01%<0.01%#116$163,370992,527$496,0601.5M-517,549-34.27%Reduce
SIMPLEX TRADING, LLC
<0.01%<0.01%#84$152,584927,000$241,546735,300+191,700+26.07%Add
SMITH, MOORE & CO.
0.01%0.01%#16$148,140900,000$154,395470,000+430,000+91.49%Add
Ishara Investments LP
0.1%0.26%#11$134,972820,000$269,370820,00000.00%Unchanged
PANAGORA ASSET MANAGEMENT INC
<0.01%<0.01%#57$120,687733,216$154,377469,946+263,270+56.02%Add
Mariner, LLC
<0.01%<0.01%#80$97,889594,719$137,446418,404+176,315+42.14%Add
IEQ CAPITAL, LLC
<0.01%<0.01%#55$97,321591,254$129,343393,739+197,515+50.16%Add
VANGUARD PORTFOLIO MANAGEMENT LLC
<0.01%<0.01%#152$89,795544,212$710,9952.2M-1.6M-74.82%Reduce
CHOREO, LLC
<0.01%<0.01%#40$88,902540,111$82,161250,111+290,000+115.95%Add

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow