Stephen K. Doberstein

CIK: 0001480111

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)2 (25.0%)

Compensation grants

Other (G, F, J, C, D, …)6 (75.0%)

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

Companies & Roles (1)

FBRX

Forte Biosciences, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (8 total)

FBRX
Forte Biosciences, Inc.
Aug 27, 2026
Disposition(D)
Stock Option (right to buy)
Direct
2K shares-
FBRX
Forte Biosciences, Inc.
Aug 27, 2026
Disposition(D)
Stock Option (right to buy)
Direct
1K shares-
FBRX
Forte Biosciences, Inc.
Aug 27, 2026
Disposition(D)
Stock Option (right to buy)
Direct
1K shares-
FBRX
Forte Biosciences, Inc.
Aug 27, 2026
Disposition(D)
Stock Option (right to buy)
Direct
2K shares-
FBRX
Forte Biosciences, Inc.
Aug 27, 2026
Disposition(D)
Stock Option (right to buy)
Direct
31K shares-
FBRX
Forte Biosciences, Inc.
Aug 27, 2026
Disposition(D)
Restricted Stock Units
Direct
18.4K shares-
FBRX
Forte Biosciences, Inc.
May 29, 2026
Award(A)
Restricted Stock Units
Direct
18.4K shares-
FBRX
Forte Biosciences, Inc.
Mar 20, 2025
Award(A)
Stock Option (right to buy)
Direct
31K shares-

		Type	Shares	Price		Ownership
Aug 27, 2026	FBRX Forte Biosciences, Inc.	Disposition(D) Stock Option (right to buy)	2,000	-	-	Direct
Aug 27, 2026	FBRX Forte Biosciences, Inc.	Disposition(D) Stock Option (right to buy)	1,000	-	-	Direct
Aug 27, 2026	FBRX Forte Biosciences, Inc.	Disposition(D) Stock Option (right to buy)	1,000	-	-	Direct
Aug 27, 2026	FBRX Forte Biosciences, Inc.	Disposition(D) Stock Option (right to buy)	2,000	-	-	Direct
Aug 27, 2026	FBRX Forte Biosciences, Inc.	Disposition(D) Stock Option (right to buy)	31,000	-	-	Direct
Aug 27, 2026	FBRX Forte Biosciences, Inc.	Disposition(D) Restricted Stock Units	18,353	-	-	Direct
May 29, 2026	FBRX Forte Biosciences, Inc.	Award(A) Restricted Stock Units	18,353	-	-	Direct
Mar 20, 2025	FBRX Forte Biosciences, Inc.	Award(A) Stock Option (right to buy)	31,000	-	-	Direct

1-8 of 8 transactions

About Doberstein Stephen K

Doberstein Stephen K (SEC CIK 0001480111) files insider reports with the SEC as Director of Forte Biosciences, Inc. (FBRX).

Signal8 holds 3 ownership filings by Doberstein Stephen K, all Form 4s, filed between Mar 21, 2025 and Aug 27, 2026. Those filings report 8 transactions, from Mar 20, 2025 to Aug 27, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Doberstein Stephen K's filings is in DALLAS, TX.

Recent filings by Doberstein Stephen K

Aug 27, 2026: Disposition to issuer transactions of FBRX derivative securities (6 lines, Form 4, code D).
May 29, 2026: Grant or award of FBRX derivative securities (Form 4, code A).
Mar 20, 2025: Grant or award of FBRX derivative securities (Form 4, code A).

Other insiders filing for Forte Biosciences, Inc. (FBRX)

Kornfeld Steven, Director
Brun Scott C., Director
GRYSKA DAVID W, Director
VINCENT RICHARD G, Director
FINCK BARBARA K, Director
Kapoor Shivpreet Singh, Director

How to read Form 4 transaction codes