Richard Aranda

CIK: 0001867872

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)15 (55.6%)

Compensation grants

Other (G, F, J, C, D, …)12 (44.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

GOSS

Gossamer Bio, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (27 total)

GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
30K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
40K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
22.8K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
9.2K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
562.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
572K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
487.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
162.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
157.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
157.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
126.7K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
20K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
40K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
22.8K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
9.2K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Disposition(D)
Stock Option (Right to Buy)
Direct
30K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
562.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
572K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
487.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
162.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
157.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
157.5K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
126.7K shares-
GOSS
Gossamer Bio, Inc.
Mar 19, 2026
Award(A)
Stock Option (Right to Buy)
Direct
20K shares-
GOSS
Gossamer Bio, Inc.
Jan 2, 2026
Award(A)
Direct
93.8K shares-

		Type	Shares	Price		Ownership
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	30,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	40,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	22,784	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	9,167	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	562,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	572,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	487,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	162,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	157,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	157,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	126,667	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	20,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	40,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	22,784	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	9,167	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Disposition(D) Stock Option (Right to Buy)	30,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	562,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	572,000	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	487,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	162,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	157,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	157,500	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	126,667	-	-	Direct
Mar 19, 2026	GOSS Gossamer Bio, Inc.	Award(A) Stock Option (Right to Buy)	20,000	-	-	Direct
Jan 2, 2026	GOSS Gossamer Bio, Inc.	Award(A)	93,750	-	$0	Direct

1-25 of 27 transactions

About Aranda Richard

Aranda Richard (SEC CIK 0001867872) files insider reports with the SEC as Chief Medical Officer of Gossamer Bio, Inc. (GOSS).

Signal8 holds 4 ownership filings by Aranda Richard, all Form 4s, filed between Mar 6, 2025 and Mar 20, 2026. Those filings report 27 transactions, from Mar 4, 2025 to Mar 19, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Aranda Richard's filings is in SAN DIEGO, CA.

Recent filings by Aranda Richard

Mar 19, 2026: Grants or awards of GOSS derivative securities (4 lines, Form 4, code A).
Mar 19, 2026: Disposition to issuer transactions of GOSS derivative securities (12 lines, Form 4, code D).
Mar 19, 2026: Grants or awards of GOSS derivative securities (8 lines, Form 4, code A).
Jan 2, 2026: Grant or award of GOSS shares (Form 4, code A).

Other insiders filing for Gossamer Bio, Inc. (GOSS)

Milligan Sandra, Director
Daniel Thomas O, Director
Ciongoli Gregory Austin, Director
Drynan Skye, Director
Quisel John D, Director
Cox Russell J., Director

How to read Form 4 transaction codes