Dorton Katina Insider Trading Activity (FULC)

Summary

Updated Jul 16, 2026

Dorton Katina has filed 4 SEC Form 4 filings across 4 companies in the last 90 days.

Date	Ticker	Company	Code	Shares	Price	Value
2026-06-04	NONE	Mallinckrodt plc	M — Option exercise	4.9K	—

Companies — Last 90 Days

Fulcrum Therapeutics, Inc. (FULC) — 1 filings, last 2026-07-02
Prelude Therapeutics Inc (PRLD) — 1 filings, last 2026-06-10
Mallinckrodt plc (NONE) — 1 filings, last 2026-06-04
TScan Therapeutics, Inc. (TCRX) — 1 filings, last 2026-05-22

Frequently Asked Questions

Who is Dorton Katina?

Dorton Katina is a corporate insider — currently tracked as Insider of Fulcrum Therapeutics, Inc. (FULC). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Dorton Katina submitted recently?

4 primary Form 4 filings in the last 90 days, covering 4 companies.

Where can I see all of Dorton Katina's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Dorton Katina — SEC Form 4 Insider Trading Activity