Arkolith/Insider Trading/GOSS/Form 4

Giraudo Bryan

COO/CFOGossamer Bio, Inc. (GOSS) · full profile →Form 4 · filed Mar 20, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
22
0 non-derivative · 22 derivative

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Mar 19, 2026Disposed to issuer(D)694K——0
Mar 19, 2026Disposed to issuer(D)638K——0
Mar 19, 2026Disposed to issuer(D)544K——0
Mar 19, 2026Disposed to issuer(D)181K——0
Mar 19, 2026Disposed to issuer(D)212K——0
Mar 19, 2026Disposed to issuer(D)212K——0
Mar 19, 2026Disposed to issuer(D)177K——0
Mar 19, 2026Disposed to issuer(D)100K——0
Mar 19, 2026Disposed to issuer(D)60K——0
Mar 19, 2026Disposed to issuer(D)48K——0
Mar 19, 2026Disposed to issuer(D)97K——0
Mar 19, 2026Grant(A)694K——694K
Mar 19, 2026Grant(A)638K——638K
Mar 19, 2026Grant(A)544K——544K
Mar 19, 2026Grant(A)181K——181K
Mar 19, 2026Grant(A)212K——212K
Mar 19, 2026Grant(A)212K——212K
Mar 19, 2026Grant(A)177K——177K
Mar 19, 2026Grant(A)100K——100K
Mar 19, 2026Grant(A)60K——60K
Mar 19, 2026Grant(A)48K——48K
Mar 19, 2026Grant(A)97K——97K

Transaction Codes

D
Disposition to the issuer
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001740847-26-000004) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML

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