Doberstein Stephen K

Director · FBRX

As of 2026-09-27, Doberstein Stephen K has 39 Form 4 transactions on record across 1 company — 37 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Trades by company

FBRX · 39 trades
2026-08-27: Disposition, 18,353 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 31,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 31,000 sh2026-08-27: Disposition, 18,353 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 31,000 sh2026-08-27: Disposition, 18,353 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 31,000 sh2026-08-27: Disposition, 18,353 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 31,000 sh2026-08-27: Disposition, 18,353 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 1,000 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 31,000 sh2026-08-27: Disposition, 18,353 sh2026-08-27: Disposition, 2,000 sh2026-08-27: Disposition, 1,000 sh2026-05-29: Award / grant, 18,353 sh ($0)2025-03-20: Award / grant, 31,000 sh ($0)2024-08-20: Award / grant, 50,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
39 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-27FBRXDisposition18,3530Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition31,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition31,0000Form 4
2026-08-27FBRXDisposition18,3530Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition31,0000Form 4
2026-08-27FBRXDisposition18,3530Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition31,0000Form 4
2026-08-27FBRXDisposition18,3530Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition31,0000Form 4
2026-08-27FBRXDisposition18,3530Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition31,0000Form 4
2026-08-27FBRXDisposition18,3530Form 4
2026-08-27FBRXDisposition2,0000Form 4
2026-08-27FBRXDisposition1,0000Form 4
2026-05-29FBRXAward / grant18,35318,353Form 4
2025-03-20FBRXAward / grant31,00031,000Form 4
2024-08-20FBRXAward / grant50,00050,000Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.