Transaction · 0001740847-26-000006

Giraudo Bryan

Giraudo Bryan, COO, CFO, reported a transaction classified as grant at Gossamer Bio, Inc. involving 25.000000 shares for an estimated $24999.98. Reported holdings after the transaction were 25.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

grantSEC transaction code ACOO, CFO
GOSSGossamer Bio, Inc.
Filing timeAug 26
Trade dateAug 24, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
Pre-filing
Returns since

GOSS price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
GOSS since 2026-08-26Filed 9 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
grant
Code A
Identifier
0001740847-26-000006
Pre-Funded Warrant (Right to Buy)
Transaction date
Aug 24, 2026
Filed Aug 26, 2026, 10:10 PM · 2d delay
Shares
25 sh
$100k per share
Estimated value
$2.49M
Computed from shares × price
Holdings after
25 sh
Indirect · By Family Trust

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Derivative Transaction Large Holdings Increase
-12score
Filing-only score

-12

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

COO/CFO

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Each share of Series A-1 non-voting convertible preferred stock is convertible automatically upon receipt of stockholder approval under applicable Nasdaq rules and regulations in connection with the

  2. Issuer's private placement pursuant to which the Pre-Funded Warrants were issued ("Stockholder Approval") into a number of shares of the Issuer's common stock equal to $1,000 divided by $0.14,

  3. pursuant to the terms of the Series A-1 Certificate of Designation and subject to applicable beneficial ownership limitations.

  4. F2

    The Pre-Funded Warrant has no expiration date and is exercisable immediately. Prior to the Issuer obtaining Stockholder Approval, the Pre-Funded Warrants are only exercisable for shares of Series

  5. A-1 non-voting convertible preferred stock. Following the Issuer's receipt of Stockholder Approval, the Pre-Funded Warrants are only exercisable for shares of the Issuer's common stock.

  6. F3

    50% of the total number of shares subject to the option will vest upon FDA approval of seralutinib, and 1/24th of the remaining 50% of the total number of shares subject to the option will vest on the…

Original filing · 0001740847-26-000006
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