DOSSIER · 13F Holders · Q3 2026
GOSS

GOSSAMER BIO INC COM

5 institutions still hold GOSSAMER BIO INC COM as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 38341P201·5 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$177K
visible holders
Holders
5
filers reporting
Concentration
94.99%
Hennion & Walsh Asset Management, Inc. #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported GOSS in Q3 2026. Hennion & Walsh Asset Management, Inc. leads at 95.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Hennion & Walsh Asset Management, Inc.
CIK 0001861642
$168K14K0.00%Q3 2026
02
Farther Finance Advisors, LLC
CIK 0001992825
$8K6410.00%Q3 2026
03
GAMMA Investing LLC
CIK 0002010235
$521440.00%Q3 2026
04
Essential Partners LLC
CIK 0002136442
$379320.00%Q3 2026
05
Planning Strategies Inc.
CIK 0002139665
$379320.00%Q3 2026
Insiders at GOSSAMER BIO INC COM
Milligan Sandra →Drynan Skye →Daniel Thomas O →Ciongoli Gregory Austin →Cox Russell J. →Quisel John D →Giraudo Bryan →Smith Robert Paul Jr →